NRF com

Dependencies:   mbed nRF24L01P

Files at this revision

API Documentation at this revision

Comitter:
vmihalcut
Date:
Mon May 27 06:06:31 2013 +0000
Commit message:
NRF24L01 receiver

Changed in this revision

main_receive.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Mail.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/MemoryPool.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Mutex.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Mutex.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Queue.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/RtosTimer.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/RtosTimer.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Semaphore.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Semaphore.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Thread.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/Thread.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtos/rtos.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/HAL_CM.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/KL25Z/ARM/HAL_CM0.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/KL25Z/ARM/SVC_Table.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC11U24/GCC_ARM/HAL_CM0.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC11U24/GCC_ARM/SVC_Table.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC11U24/uARM/HAL_CM0.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC11U24/uARM/SVC_Table.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC1768/ARM/HAL_CM3.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC1768/ARM/SVC_Table.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC1768/GCC_ARM/HAL_CM3.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/LPC1768/GCC_ARM/SVC_Table.s Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/RTX_CM_lib.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/RTX_Conf.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/RTX_Conf_CM.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/cmsis_os.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/os_tcb.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_CMSIS.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Event.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Event.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_HAL_CM.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_List.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_List.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Mailbox.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Mailbox.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_MemBox.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_MemBox.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Mutex.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Mutex.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Robin.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Robin.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Semaphore.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Semaphore.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_System.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_System.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Task.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Task.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Time.c Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_Time.h Show annotated file Show diff for this revision Revisions of this file
mbed-rtos/rtx/rt_TypeDef.h Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
nRF24L01P.lib Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r fdfe93cb9255 main_receive.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main_receive.cpp	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,270 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+#include "rtos.h"
+
+//*******************************************************************************************************************************
+
+/*Serial pc(USBTX, USBRX); // tx, rx
+
+nRF24L01P my_nrf24l01p(PTD2,    // MOSI
+                       PTD3,    // MISO
+                       PTD1,    // SCK
+                       PTA13,   // CSN
+                       PTD5,    // CE
+                       PTD0);   // IRQ
+
+DigitalOut led(LED_RED);
+
+int main() {
+    pc.baud(9600);
+    pc.format();
+
+// The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
+//  "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
+//  only handles 4 byte transfers in the ATMega code.
+#define TRANSFER_SIZE   4
+
+    char rxData[TRANSFER_SIZE];
+    int rxDataCnt = 0;
+
+    my_nrf24l01p.powerUp();
+
+    // Display the (default) setup of the nRF24L01+ chip
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
+    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
+
+    pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
+
+
+    my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
+
+    my_nrf24l01p.setReceiveMode();
+
+    my_nrf24l01p.enable();
+
+    //my_nrf24l01p.enableAutoAcknowledge();
+
+    while (1)
+    {
+        //pc.printf("while(1) \r\n"); z
+        while( !my_nrf24l01p.readable() );
+        //pc.printf("%d", my_nrf24l01p.readable());
+        //if ( my_nrf24l01p.readable() )
+        {
+            //pc.printf("my_nrf24l01p.readable() \r\n");
+            rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
+            rxData[rxDataCnt] = '\0';
+            pc.printf("rxData: %s \n\r", rxData);
+            //for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ )
+            //{
+            //    pc.putc( rxData[i] );
+            //}
+            //if(rxDataCnt >= 0 && rxData[0] == 's' && rxData[1] == 't')
+            {
+                //while(1)
+                {
+                    led = 1 - led;
+                    //wait(0.1);
+                }
+            }
+        }
+    }
+}*/
+
+//*******************************************************************************************************************************
+
+/*
+Serial pc(USBTX, USBRX); // tx, rx
+
+nRF24L01P my_nrf24l01p(PTD2,    // MOSI
+                       PTD3,    // MISO
+                       PTD1,    // SCK
+                       PTA13,   // CSN
+                       PTD7,    // CE
+                       PTD0);   // IRQ
+#define TRANSFER_SIZE   4
+
+DigitalOut led(LED_RED);
+
+int main() {
+    pc.baud(9600);
+    pc.format();
+
+    char rxData[TRANSFER_SIZE];
+    int rxDataCnt = 0;
+
+    my_nrf24l01p.powerUp();
+
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
+    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
+
+    pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
+
+    my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
+
+    my_nrf24l01p.setReceiveMode();
+
+    my_nrf24l01p.enable();
+
+    led = 0;
+
+    while (1)
+    {
+        while( !my_nrf24l01p.readable() );
+        {
+            rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
+            rxData[rxDataCnt] = '\0';
+            pc.printf("rxData: %s \n\r", rxData);
+            if(rxDataCnt ==4 && rxData[0] == 's' && rxData[1] == 't' && rxData[2] == 'a')
+            {
+                led = 1;
+            }
+            if(rxDataCnt ==4 && rxData[0] == 'S' && rxData[1] == 'T' && rxData[2] == 'A')
+            {
+                led = 0;
+            }
+        }
+    }
+}
+*/
+//*******************************************************************************************************************************
+
+/*Serial pc(USBTX, USBRX); // tx, rx
+
+nRF24L01P my_nrf24l01p(PTD2,    // MOSI
+                       PTD3,    // MISO
+                       PTE1,    // SCK
+                       PTA13,   // CSN
+                       PTD7,    // CE
+                       PTE0);   // IRQ
+#define TRANSFER_SIZE   4
+
+DigitalOut led(LED_RED);
+DigitalOut led2(LED_GREEN);
+
+//signals
+#define START_THREAD_SIGNAL 0x01
+
+Thread *threadCountReceive;
+volatile int rxDataCntPerSec;
+
+Mutex stdio_mutex;
+
+void tCountReceive(void const *args)
+{
+    //Thread::signal_wait(START_THREAD_SIGNAL);
+    static int copy;
+    while(true) {
+        Thread::wait(1000);
+//        copy = rxDataCntPerSec;
+        //copy++;
+        stdio_mutex.lock();
+        //pc.printf("ch per sec: %d   %d\r\n",copy,rxDataCntPerSec);
+        pc.printf("ch per sec: %d\r\n",rxDataCntPerSec);
+        stdio_mutex.unlock();
+        //led2=1-led2;
+        rxDataCntPerSec = 0;
+    }
+}
+
+int main()
+{
+    pc.baud(9600);
+    pc.format();
+
+    char rxData[TRANSFER_SIZE];
+    int rxDataCnt = 0;
+
+    my_nrf24l01p.powerUp();
+
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
+    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
+
+    pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
+
+    my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
+    my_nrf24l01p.setReceiveMode();
+    my_nrf24l01p.enable();
+
+    threadCountReceive = new Thread(tCountReceive,NULL,osPriorityNormal);
+    //Thread::wait(500);
+    //threadCountReceive->signal_set(START_THREAD_SIGNAL);
+    
+    while (1)
+    {
+        while( !my_nrf24l01p.readable() ) 
+        {
+            //Thread::wait(10);
+        }
+
+        rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
+        rxData[rxDataCnt] = '\0';
+        stdio_mutex.lock();
+        pc.printf("rxData: %d - %d \n\r", rxDataCntPerSec,rxDataCnt);
+        rxDataCntPerSec += rxDataCnt;
+        stdio_mutex.unlock();
+
+        //led = 1 - led;
+
+    }
+}*/
+
+Serial pc(USBTX, USBRX); // tx, rx
+
+nRF24L01P my_nrf24l01p(p5, p6, p7, p8, p9);
+#define TRANSFER_SIZE   32
+
+DigitalOut led(LED1);
+
+int main() {
+    pc.baud(19200);
+    pc.format();
+
+    char rxData[TRANSFER_SIZE];
+    int rxDataCnt = 0;
+
+    my_nrf24l01p.powerUp();
+
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
+    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
+
+    pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
+
+    my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
+
+    my_nrf24l01p.setReceiveMode();
+
+    my_nrf24l01p.enable();
+
+    led = 0;
+
+    while (1)
+    {
+        while( !my_nrf24l01p.readable() );
+        {
+            rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
+            rxData[rxDataCnt] = '\0';
+            pc.printf("rxData: %s \n\r", rxData);
+            if(rxDataCnt ==4 && rxData[0] == 's' && rxData[1] == 't' && rxData[2] == 'a')
+            {
+                led = 1;
+            }
+            if(rxDataCnt ==4 && rxData[0] == 'S' && rxData[1] == 'T' && rxData[2] == 'A')
+            {
+                led = 0;
+            }
+        }
+    }
+}
\ No newline at end of file
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Mail.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Mail.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,109 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef MAIL_H
+#define MAIL_H
+
+#include <stdint.h>
+#include <string.h>
+
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** The Mail class allow to control, send, receive, or wait for mail.
+ A mail is a memory block that is send to a thread or interrupt service routine.
+  @tparam  T         data type of a single message element.
+  @tparam  queue_sz  maximum number of messages in queue.
+*/
+template<typename T, uint32_t queue_sz>
+class Mail {
+public:
+    /** Create and Initialise Mail queue. */
+    Mail() {
+    #ifdef CMSIS_OS_RTX
+        memset(_mail_q, 0, sizeof(_mail_q));
+        _mail_p[0] = _mail_q;
+        
+        memset(_mail_m, 0, sizeof(_mail_m));
+        _mail_p[1] = _mail_m;
+        
+        _mail_def.pool = _mail_p;
+        _mail_def.queue_sz = queue_sz;
+        _mail_def.item_sz = sizeof(T);
+    #endif
+        _mail_id = osMailCreate(&_mail_def, NULL);
+    }
+    
+    /** Allocate a memory block of type T
+      @param   millisec  timeout value or 0 in case of no time-out. (default: 0).
+      @return  pointer to memory block that can be filled with mail or NULL in case error.
+    */
+    T* alloc(uint32_t millisec=0) {
+        return (T*)osMailAlloc(_mail_id, millisec);
+    }
+    
+    /** Allocate a memory block of type T and set memory block to zero. 
+      @param   millisec  timeout value or 0 in case of no time-out.  (default: 0).
+      @return  pointer to memory block that can be filled with mail or NULL in case error.
+    */
+    T* calloc(uint32_t millisec=0) {
+        return (T*)osMailCAlloc(_mail_id, millisec);
+    }
+    
+    /** Put a mail in the queue.
+      @param   mptr  memory block previously allocated with Mail::alloc or Mail::calloc.
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus put(T *mptr) {
+        return osMailPut(_mail_id, (void*)mptr);
+    }
+    
+    /** Get a mail from a queue.
+      @param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever).
+      @return  event that contains mail information or error code.
+    */
+    osEvent get(uint32_t millisec=osWaitForever) {
+        return osMailGet(_mail_id, millisec);
+    }
+    
+    /** Free a memory block from a mail.
+      @param   mptr  pointer to the memory block that was obtained with Mail::get. 
+      @return  status code that indicates the execution status of the function.
+    */
+    osStatus free(T *mptr) {
+        return osMailFree(_mail_id, (void*)mptr);
+    }
+
+private:
+    osMailQId    _mail_id;
+    osMailQDef_t _mail_def;
+#ifdef CMSIS_OS_RTX
+    uint32_t     _mail_q[4+(queue_sz)];
+    uint32_t     _mail_m[3+((sizeof(T)+3)/4)*(queue_sz)];
+    void        *_mail_p[2];
+#endif
+};
+
+}
+
+#endif
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/MemoryPool.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/MemoryPool.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,82 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef MEMORYPOOL_H
+#define MEMORYPOOL_H
+
+#include <stdint.h>
+#include <string.h>
+
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** Define and manage fixed-size memory pools of objects of a given type.
+  @tparam  T         data type of a single object (element).
+  @tparam  queue_sz  maximum number of objects (elements) in the memory pool.
+*/
+template<typename T, uint32_t pool_sz>
+class MemoryPool {
+public:
+    /** Create and Initialize a memory pool. */
+    MemoryPool() {
+    #ifdef CMSIS_OS_RTX
+        memset(_pool_m, 0, sizeof(_pool_m));
+        _pool_def.pool = _pool_m;
+        
+        _pool_def.pool_sz = pool_sz;
+        _pool_def.item_sz =  sizeof(T);
+    #endif
+        _pool_id = osPoolCreate(&_pool_def);
+    }
+    
+    /** Allocate a memory block of type T from a memory pool.
+      @return  address of the allocated memory block or NULL in case of no memory available.
+    */
+    T* alloc(void) {
+        return (T*)osPoolAlloc(_pool_id);
+    }
+    
+    /** Allocate a memory block of type T from a memory pool and set memory block to zero.
+      @return  address of the allocated memory block or NULL in case of no memory available. 
+    */
+    T* calloc(void) {
+        return (T*)osPoolCAlloc(_pool_id);
+    }
+    
+    /** Return an allocated memory block back to a specific memory pool.
+      @param   address of the allocated memory block that is returned to the memory pool.
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus free(T *block) {
+        return osPoolFree(_pool_id, (void*)block);
+    }
+
+private:
+    osPoolId    _pool_id;
+    osPoolDef_t _pool_def;
+#ifdef CMSIS_OS_RTX
+    uint32_t    _pool_m[3+((sizeof(T)+3)/4)*(pool_sz)];
+#endif
+};
+
+}
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Mutex.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Mutex.cpp	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,56 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "Mutex.h"
+
+#include <string.h>
+#include "error.h"
+
+namespace rtos {
+
+Mutex::Mutex() {
+#ifdef CMSIS_OS_RTX
+    memset(_mutex_data, 0, sizeof(_mutex_data));
+    _osMutexDef.mutex = _mutex_data;
+#endif
+    _osMutexId = osMutexCreate(&_osMutexDef);
+    if (_osMutexId == NULL) {
+        error("Error initializing the mutex object\n");
+    }
+}
+
+osStatus Mutex::lock(uint32_t millisec) {
+    return osMutexWait(_osMutexId, millisec);
+}
+
+bool Mutex::trylock() {
+    return (osMutexWait(_osMutexId, 0) == osOK);
+}
+
+osStatus Mutex::unlock() {
+    return osMutexRelease(_osMutexId);
+}
+
+Mutex::~Mutex() {
+    osMutexDelete(_osMutexId);
+}
+
+}
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Mutex.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Mutex.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,65 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef MUTEX_H
+#define MUTEX_H
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** The Mutex class is used to synchronise the execution of threads.
+ This is for example used to protect access to a shared resource.
+*/
+class Mutex {
+public:
+    /** Create and Initialize a Mutex object */
+    Mutex();
+    
+    /** Wait until a Mutex becomes available.
+      @param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever)
+      @return  status code that indicates the execution status of the function.
+     */ 
+    osStatus lock(uint32_t millisec=osWaitForever);
+    
+    /** Try to lock the mutex, and return immediately
+      @return  true if the mutex was acquired, false otherwise.
+     */
+    bool trylock();
+    
+    /** Unlock the mutex that has previously been locked by the same thread
+      @return  status code that indicates the execution status of the function. 
+     */
+    osStatus unlock();
+    
+    ~Mutex();
+
+private:
+    osMutexId _osMutexId;
+    osMutexDef_t _osMutexDef;
+#ifdef CMSIS_OS_RTX
+    int32_t _mutex_data[3];
+#endif
+};
+
+}
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Queue.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Queue.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,81 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef QUEUE_H
+#define QUEUE_H
+
+#include <stdint.h>
+#include <string.h>
+
+#include "cmsis_os.h"
+#include "error.h"
+
+namespace rtos {
+
+/** The Queue class allow to control, send, receive, or wait for messages.
+ A message can be a integer or pointer value  to a certain type T that is send
+ to a thread or interrupt service routine.
+  @tparam  T         data type of a single message element.
+  @tparam  queue_sz  maximum number of messages in queue.
+*/
+template<typename T, uint32_t queue_sz>
+class Queue {
+public:
+    /** Create and initialise a message Queue. */
+    Queue() {
+    #ifdef CMSIS_OS_RTX
+        memset(_queue_q, 0, sizeof(_queue_q));
+        _queue_def.pool = _queue_q;
+        _queue_def.queue_sz = queue_sz;
+    #endif
+        _queue_id = osMessageCreate(&_queue_def, NULL);
+        if (_queue_id == NULL) {
+            error("Error initialising the queue object\n");
+        }
+    }
+    
+    /** Put a message in a Queue.
+      @param   data      message pointer.
+      @param   millisec  timeout value or 0 in case of no time-out. (default: 0)
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus put(T* data, uint32_t millisec=0) {
+        return osMessagePut(_queue_id, (uint32_t)data, millisec);
+    }
+    
+    /** Get a message or Wait for a message from a Queue.
+      @param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever).
+      @return  event information that includes the message and the status code.
+    */
+    osEvent get(uint32_t millisec=osWaitForever) {
+        return osMessageGet(_queue_id, millisec);
+    }
+
+private:
+    osMessageQId    _queue_id;
+    osMessageQDef_t _queue_def;
+#ifdef CMSIS_OS_RTX
+    uint32_t        _queue_q[4+(queue_sz)];
+#endif
+};
+
+}
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/RtosTimer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/RtosTimer.cpp	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,53 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "RtosTimer.h"
+
+#include <string.h>
+
+#include "cmsis_os.h"
+#include "error.h"
+
+namespace rtos {
+
+RtosTimer::RtosTimer(void (*periodic_task)(void const *argument), os_timer_type type, void *argument) {
+#ifdef CMSIS_OS_RTX
+    _timer.ptimer = periodic_task;
+    
+    memset(_timer_data, 0, sizeof(_timer_data));
+    _timer.timer = _timer_data;
+#endif
+    _timer_id = osTimerCreate(&_timer, type, argument);
+}
+
+osStatus RtosTimer::start(uint32_t millisec) {
+    return osTimerStart(_timer_id, millisec);
+}
+
+osStatus RtosTimer::stop(void) {
+    return osTimerStop(_timer_id);
+}
+
+RtosTimer::~RtosTimer() {
+    osTimerDelete(_timer_id);
+}
+
+}
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/RtosTimer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/RtosTimer.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,71 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef RTOS_TIMER_H
+#define RTOS_TIMER_H
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** The RtosTimer class allow creating and and controlling of timer functions in the system.
+ A timer function is called when a time period expires whereby both on-shot and
+ periodic timers are possible. A timer can be started, restarted, or stopped.
+
+ Timers are handled in the thread osTimerThread.
+ Callback functions run under control of this thread and may use CMSIS-RTOS API calls. 
+*/
+class RtosTimer {
+public:
+    /** Create and Start timer.
+      @param   task      name of the timer call back function.
+      @param   type      osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
+      @param   argument  argument to the timer call back function. (default: NULL)
+    */
+    RtosTimer(void (*task)(void const *argument),
+          os_timer_type type=osTimerPeriodic,
+          void *argument=NULL);
+    
+    /** Stop the timer.
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus stop(void);
+    
+    /** start a timer.
+      @param   millisec  time delay value of the timer.
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus start(uint32_t millisec);
+    
+    ~RtosTimer();
+
+private:
+    osTimerId _timer_id;
+    osTimerDef_t _timer;
+#ifdef CMSIS_OS_RTX
+    uint32_t _timer_data[5];
+#endif
+};
+
+}
+
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Semaphore.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Semaphore.cpp	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,49 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "Semaphore.h"
+
+#include <string.h>
+#include "error.h"
+
+namespace rtos {
+
+Semaphore::Semaphore(int32_t count) {
+#ifdef CMSIS_OS_RTX
+    memset(_semaphore_data, 0, sizeof(_semaphore_data));
+    _osSemaphoreDef.semaphore = _semaphore_data;
+#endif
+    _osSemaphoreId = osSemaphoreCreate(&_osSemaphoreDef, count);
+}
+
+int32_t Semaphore::wait(uint32_t millisec) {
+    return osSemaphoreWait(_osSemaphoreId, millisec);
+}
+
+osStatus Semaphore::release(void) {
+    return osSemaphoreRelease(_osSemaphoreId);
+}
+
+Semaphore::~Semaphore() {
+    osSemaphoreDelete(_osSemaphoreId);
+}
+
+}
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Semaphore.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Semaphore.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,60 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef SEMAPHORE_H
+#define SEMAPHORE_H
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** The Semaphore class is used to manage and protect access to a set of shared resources. */
+class Semaphore {
+public:
+    /** Create and Initialize a Semaphore object used for managing resources. 
+      @param number of available resources; maximum index value is (count-1).
+    */
+    Semaphore(int32_t count);
+    
+    /** Wait until a Semaphore resource becomes available. 
+      @param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever).
+      @return  number of available tokens, or -1 in case of incorrect parameters
+    */
+    int32_t wait(uint32_t millisec=osWaitForever);
+    
+    /** Release a Semaphore resource that was obtain with Semaphore::wait.
+      @return  status code that indicates the execution status of the function. 
+    */
+    osStatus release(void);
+    
+    ~Semaphore();
+
+private:
+    osSemaphoreId _osSemaphoreId;
+    osSemaphoreDef_t _osSemaphoreDef;
+#ifdef CMSIS_OS_RTX
+    uint32_t _semaphore_data[2];
+#endif
+};
+
+}
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Thread.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Thread.cpp	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,90 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "Thread.h"
+
+#include "error.h"
+
+namespace rtos {
+
+Thread::Thread(void (*task)(void const *argument), void *argument,
+        osPriority priority, uint32_t stack_size, unsigned char *stack_pointer) {
+#ifdef CMSIS_OS_RTX
+    _thread_def.pthread = task;
+    _thread_def.tpriority = priority;
+    _thread_def.stacksize = stack_size;
+    if (stack_pointer != NULL) {
+        _thread_def.stack_pointer = stack_pointer;
+        _dynamic_stack = false;
+    } else {
+        _thread_def.stack_pointer = new unsigned char[stack_size];
+        if (_thread_def.stack_pointer == NULL)
+            error("Error allocating the stack memory");
+        _dynamic_stack = true;
+    }
+#endif
+    _tid = osThreadCreate(&_thread_def, argument);
+}
+
+osStatus Thread::terminate() {
+    return osThreadTerminate(_tid);
+}
+
+osStatus Thread::set_priority(osPriority priority) {
+    return osThreadSetPriority(_tid, priority);
+}
+
+osPriority Thread::get_priority() {
+    return osThreadGetPriority(_tid);
+}
+
+int32_t Thread::signal_set(int32_t signals) {
+    return osSignalSet(_tid, signals);
+}
+
+Thread::State Thread::get_state() {
+    return ((State)_thread_def.tcb.state);
+}
+
+osEvent Thread::signal_wait(int32_t signals, uint32_t millisec) {
+    return osSignalWait(signals, millisec);
+}
+
+osStatus Thread::wait(uint32_t millisec) {
+    return osDelay(millisec);
+}
+
+osStatus Thread::yield() {
+    return osThreadYield();
+}
+
+osThreadId Thread::gettid() {
+    return osThreadGetId();
+}
+
+Thread::~Thread() {
+    terminate();
+    if (_dynamic_stack) {
+        delete[] (_thread_def.stack_pointer);
+    }
+}
+
+}
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/Thread.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/Thread.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,118 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef THREAD_H
+#define THREAD_H
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+namespace rtos {
+
+/** The Thread class allow defining, creating, and controlling thread functions in the system. */
+class Thread {
+public:
+    /** Create a new thread, and start it executing the specified function.
+      @param   task           function to be executed by this thread.
+      @param   argument       pointer that is passed to the thread function as start argument. (default: NULL).
+      @param   priority       initial priority of the thread function. (default: osPriorityNormal).
+      @param   stack_size      stack size (in bytes) requirements for the thread function. (default: DEFAULT_STACK_SIZE).
+      @param   stack_pointer  pointer to the stack area to be used by this thread (default: NULL).
+    */
+    Thread(void (*task)(void const *argument), void *argument=NULL,
+           osPriority priority=osPriorityNormal,
+           uint32_t stack_size=DEFAULT_STACK_SIZE,
+           unsigned char *stack_pointer=NULL);
+    
+    /** Terminate execution of a thread and remove it from Active Threads
+      @return  status code that indicates the execution status of the function.
+    */
+    osStatus terminate();
+    
+    /** Set priority of an active thread
+      @param   priority  new priority value for the thread function.
+      @return  status code that indicates the execution status of the function.
+    */
+    osStatus set_priority(osPriority priority);
+    
+    /** Get priority of an active thread
+      @return  current priority value of the thread function.
+    */
+    osPriority get_priority();
+    
+    /** Set the specified Signal Flags of an active thread.
+      @param   signals  specifies the signal flags of the thread that should be set.
+      @return  previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
+    */
+    int32_t signal_set(int32_t signals);
+    
+    /** State of the Thread */
+    enum State {
+        Inactive,           /**< Not created or terminated */
+        Ready,              /**< Ready to run */
+        Running,            /**< Running */
+        WaitingDelay,       /**< Waiting for a delay to occur */
+        WaitingInterval,    /**< Waiting for an interval to occur */
+        WaitingOr,          /**< Waiting for one event in a set to occur */
+        WaitingAnd,         /**< Waiting for multiple events in a set to occur */
+        WaitingSemaphore,   /**< Waiting for a semaphore event to occur */
+        WaitingMailbox,     /**< Waiting for a mailbox event to occur */
+        WaitingMutex,       /**< Waiting for a mutex event to occur */
+    };
+    
+    /** State of this Thread
+      @return  the State of this Thread
+    */
+    State get_state();
+    
+    /** Wait for one or more Signal Flags to become signaled for the current RUNNING thread. 
+      @param   signals   wait until all specified signal flags set or 0 for any single signal flag.
+      @param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever).
+      @return  event flag information or error code.
+    */
+    static osEvent signal_wait(int32_t signals, uint32_t millisec=osWaitForever);
+    
+    /** Wait for a specified time period in millisec:
+      @param   millisec  time delay value
+      @return  status code that indicates the execution status of the function. 
+    */
+    static osStatus wait(uint32_t millisec);
+    
+    /** Pass control to next thread that is in state READY.
+      @return  status code that indicates the execution status of the function.
+    */
+    static osStatus yield();
+    
+    /** Get the thread id of the current running thread.
+      @return  thread ID for reference by other functions or NULL in case of error.
+    */
+    static osThreadId gettid();
+    
+    virtual ~Thread();
+
+private:
+    osThreadId _tid;
+    osThreadDef_t _thread_def;
+    bool _dynamic_stack;
+};
+
+}
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtos/rtos.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtos/rtos.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,35 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef RTOS_H
+#define RTOS_H
+
+#include "Thread.h"
+#include "Mutex.h"
+#include "RtosTimer.h"
+#include "Semaphore.h"
+#include "Mail.h"
+#include "MemoryPool.h"
+#include "Queue.h"
+
+using namespace rtos;
+
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/HAL_CM.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/HAL_CM.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,170 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM.C
+ *      Purpose: Hardware Abstraction Layer for Cortex-M
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_HAL_CM.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+#ifdef DBG_MSG
+BIT dbg_msg;
+#endif
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_init_stack ---------------------------------*/
+
+void rt_init_stack (P_TCB p_TCB, FUNCP task_body) {
+  /* Prepare TCB and saved context for a first time start of a task. */
+  U32 *stk,i,size;
+
+  /* Prepare a complete interrupt frame for first task start */
+  size = p_TCB->priv_stack >> 2;
+  
+  /* Write to the top of stack. */
+  stk = &p_TCB->stack[size];
+
+  /* Auto correct to 8-byte ARM stack alignment. */
+  if ((U32)stk & 0x04) {
+    stk--;
+  }
+
+  stk -= 16;
+
+  /* Default xPSR and initial PC */
+  stk[15] = INITIAL_xPSR;
+  stk[14] = (U32)task_body;
+
+  /* Clear R4-R11,R0-R3,R12,LR registers. */
+  for (i = 0; i < 14; i++) {
+    stk[i] = 0;
+  }
+
+  /* Assign a void pointer to R0. */
+  stk[8] = (U32)p_TCB->msg;
+
+  /* Initial Task stack pointer. */
+  p_TCB->tsk_stack = (U32)stk;
+
+  /* Task entry point. */
+  p_TCB->ptask = task_body;
+
+  /* Set a magic word for checking of stack overflow.
+   For the main thread (ID: 0x01) the stack is in a memory area shared with the
+   heap, therefore the last word of the stack is a moving target.
+   We want to do stack/heap collision detection instead.
+  */
+  if (p_TCB->task_id != 0x01)
+      p_TCB->stack[0] = MAGIC_WORD;
+}
+
+
+/*--------------------------- rt_ret_val ----------------------------------*/
+
+static __inline U32 *rt_ret_regs (P_TCB p_TCB) {
+  /* Get pointer to task return value registers (R0..R3) in Stack */
+#if (__TARGET_FPU_VFP)
+  if (p_TCB->stack_frame) {
+    /* Extended Stack Frame: R4-R11,S16-S31,R0-R3,R12,LR,PC,xPSR,S0-S15,FPSCR */
+    return (U32 *)(p_TCB->tsk_stack + 8*4 + 16*4);
+  } else {
+    /* Basic Stack Frame: R4-R11,R0-R3,R12,LR,PC,xPSR */
+    return (U32 *)(p_TCB->tsk_stack + 8*4);
+  }
+#else
+  /* Stack Frame: R4-R11,R0-R3,R12,LR,PC,xPSR */
+  return (U32 *)(p_TCB->tsk_stack + 8*4);
+#endif
+}
+
+void rt_ret_val (P_TCB p_TCB, U32 v0) {
+  U32 *ret;
+
+  ret = rt_ret_regs(p_TCB);
+  ret[0] = v0;
+}
+
+void rt_ret_val2(P_TCB p_TCB, U32 v0, U32 v1) {
+  U32 *ret;
+
+  ret = rt_ret_regs(p_TCB);
+  ret[0] = v0;
+  ret[1] = v1;
+}
+
+
+/*--------------------------- dbg_init --------------------------------------*/
+
+#ifdef DBG_MSG
+void dbg_init (void) {
+  if ((DEMCR & DEMCR_TRCENA)     && 
+      (ITM_CONTROL & ITM_ITMENA) &&
+      (ITM_ENABLE & (1UL << 31))) {
+    dbg_msg = __TRUE;
+  }
+}
+#endif
+
+/*--------------------------- dbg_task_notify -------------------------------*/
+
+#ifdef DBG_MSG
+void dbg_task_notify (P_TCB p_tcb, BOOL create) {
+  while (ITM_PORT31_U32 == 0);
+  ITM_PORT31_U32 = (U32)p_tcb->ptask;
+  while (ITM_PORT31_U32 == 0);
+  ITM_PORT31_U16 = (create << 8) | p_tcb->task_id;
+}
+#endif
+
+/*--------------------------- dbg_task_switch -------------------------------*/
+
+#ifdef DBG_MSG
+void dbg_task_switch (U32 task_id) {
+  while (ITM_PORT31_U32 == 0);
+  ITM_PORT31_U8 = task_id;
+}
+#endif
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/KL25Z/ARM/HAL_CM0.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/KL25Z/ARM/HAL_CM0.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,301 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM0.C
+ *      Purpose: Hardware Abstraction Layer for Cortex-M0
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_HAL_CM.h"
+#include "rt_Task.h"
+#include "rt_MemBox.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+__asm void rt_set_PSP (U32 stack) {
+        MSR     PSP,R0
+        BX      LR
+}
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+__asm U32 rt_get_PSP (void) {
+        MRS     R0,PSP
+        BX      LR
+}
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+__asm void os_set_env (void) {
+   /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+        MOV     R0,SP                   ; PSP = MSP
+        MSR     PSP,R0
+        LDR     R0,=__cpp(&os_flags)
+        LDRB    R0,[R0]
+        LSLS    R0,#31
+        BNE     PrivilegedE
+        MOVS    R0,#0x03                ; Unprivileged Thread mode, use PSP
+        MSR     CONTROL,R0
+        BX      LR
+PrivilegedE
+        MOVS    R0,#0x02                ; Privileged Thread mode, use PSP
+        MSR     CONTROL,R0
+        BX      LR
+
+        ALIGN
+}
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+__asm void *_alloc_box (void *box_mem) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R3,=__cpp(rt_alloc_box)
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedA
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedA
+        SVC     0
+        BX      LR
+PrivilegedA
+        BX      R12
+
+        ALIGN
+}
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+__asm int _free_box (void *box_mem, void *box) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R3,=__cpp(rt_free_box)
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedF
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedF
+        SVC     0
+        BX      LR
+PrivilegedF
+        BX      R12
+
+        ALIGN
+}
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+__asm void SVC_Handler (void) {
+        PRESERVE8
+
+        IMPORT  SVC_Count
+        IMPORT  SVC_Table
+        IMPORT  rt_stk_check
+
+        MRS     R0,PSP                  ; Read PSP
+        LDR     R1,[R0,#24]             ; Read Saved PC from Stack
+        SUBS    R1,R1,#2                ; Point to SVC Instruction
+        LDRB    R1,[R1]                 ; Load SVC Number
+        CMP     R1,#0
+        BNE     SVC_User                ; User SVC Number > 0
+
+        MOV     LR,R4
+        LDMIA   R0,{R0-R3,R4}           ; Read R0-R3,R12 from stack
+        MOV     R12,R4
+        MOV     R4,LR
+        BLX     R12                     ; Call SVC Function 
+
+        MRS     R3,PSP                  ; Read PSP
+        STMIA   R3!,{R0-R2}             ; Store return values
+
+        LDR     R3,=__cpp(&os_tsk)
+        LDMIA   R3!,{R1,R2}             ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     SVC_Exit                ; no task switch
+
+        SUBS    R3,#8
+        CMP     R1,#0                   ; Runtask deleted?
+        BEQ     SVC_Next
+
+        MRS     R0,PSP                  ; Read PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        STR     R0,[R1,#TCB_TSTACK]     ; Update os_tsk.run->tsk_stack       
+        STMIA   R0!,{R4-R7}             ; Save old context (R4-R7)
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             ; Save old context (R8-R11)
+        
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+SVC_Next
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R0,[R2,#TCB_TSTACK]     ; os_tsk.new->tsk_stack
+        ADDS    R0,R0,#16               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R8-R11)
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  ; Write PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R4-R7)
+
+SVC_Exit
+        MOVS    R0,#:NOT:0xFFFFFFFD     ; Set EXC_RETURN value
+        MVNS    R0,R0
+        BX      R0                      ; RETI to Thread Mode, use PSP
+
+        /*------------------- User SVC ------------------------------*/
+
+SVC_User
+        PUSH    {R4,LR}                 ; Save Registers
+        LDR     R2,=SVC_Count
+        LDR     R2,[R2]
+        CMP     R1,R2
+        BHI     SVC_Done                ; Overflow
+
+        LDR     R4,=SVC_Table-4
+        LSLS    R1,R1,#2
+        LDR     R4,[R4,R1]              ; Load SVC Function Address
+        MOV     LR,R4
+
+        LDMIA   R0,{R0-R3,R4}           ; Read R0-R3,R12 from stack
+        MOV     R12,R4
+        BLX     LR                      ; Call SVC Function
+
+        MRS     R4,PSP                  ; Read PSP
+        STMIA   R4!,{R0-R3}             ; Function return values
+SVC_Done
+        POP     {R4,PC}                 ; RETI
+
+        ALIGN
+}
+
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+__asm void PendSV_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_pop_req)
+
+Sys_Switch
+        LDR     R3,=__cpp(&os_tsk)
+        LDMIA   R3!,{R1,R2}             ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     Sys_Exit                ; no task switch
+
+        SUBS    R3,#8
+
+        MRS     R0,PSP                  ; Read PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        STR     R0,[R1,#TCB_TSTACK]     ; Update os_tsk.run->tsk_stack
+        STMIA   R0!,{R4-R7}             ; Save old context (R4-R7)
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             ; Save old context (R8-R11)
+        
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R0,[R2,#TCB_TSTACK]     ; os_tsk.new->tsk_stack
+        ADDS    R0,R0,#16               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R8-R11)
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  ; Write PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R4-R7)
+
+Sys_Exit
+        MOVS    R0,#:NOT:0xFFFFFFFD     ; Set EXC_RETURN value
+        MVNS    R0,R0
+        BX      R0                      ; RETI to Thread Mode, use PSP
+
+        ALIGN
+}
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+__asm void SysTick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+__asm void OS_Tick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(os_tick_irqack)
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/KL25Z/ARM/SVC_Table.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/KL25Z/ARM/SVC_Table.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,57 @@
+;/*----------------------------------------------------------------------------
+; *      RL-ARM - RTX
+; *----------------------------------------------------------------------------
+; *      Name:    SVC_TABLE.S
+; *      Purpose: Pre-defined SVC Table for Cortex-M
+; *      Rev.:    V4.60
+; *----------------------------------------------------------------------------
+; *
+; * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+; * All rights reserved.
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions are met:
+; *  - Redistributions of source code must retain the above copyright
+; *    notice, this list of conditions and the following disclaimer.
+; *  - Redistributions in binary form must reproduce the above copyright
+; *    notice, this list of conditions and the following disclaimer in the
+; *    documentation and/or other materials provided with the distribution.
+; *  - Neither the name of ARM  nor the names of its contributors may be used 
+; *    to endorse or promote products derived from this software without 
+; *    specific prior written permission.
+; *
+; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+; * POSSIBILITY OF SUCH DAMAGE.
+; *---------------------------------------------------------------------------*/
+
+
+                AREA    SVC_TABLE, CODE, READONLY
+
+                EXPORT  SVC_Count
+
+SVC_Cnt         EQU    (SVC_End-SVC_Table)/4
+SVC_Count       DCD     SVC_Cnt
+
+; Import user SVC functions here.
+;               IMPORT  __SVC_1
+
+                EXPORT  SVC_Table
+SVC_Table
+; Insert user SVC functions here. SVC 0 used by RTL Kernel.
+;               DCD     __SVC_1                 ; user SVC function
+
+SVC_End
+
+                END
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC11U24/GCC_ARM/HAL_CM0.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC11U24/GCC_ARM/HAL_CM0.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,370 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM0.S
+ *      Purpose: Hardware Abstraction Layer for Cortex-M0
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+        .file   "HAL_CM0.S"
+        .syntax unified
+
+        .equ    TCB_TSTACK, 36
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+        .thumb
+
+        .section ".text"
+        .align  2
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+#       void rt_set_PSP (U32 stack);
+
+        .thumb_func
+        .type   rt_set_PSP, %function
+        .global rt_set_PSP
+rt_set_PSP:
+        .fnstart
+        .cantunwind
+
+        MSR     PSP,R0
+        BX      LR
+
+        .fnend
+        .size   rt_set_PSP, .-rt_set_PSP
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+#       U32 rt_get_PSP (void);
+
+        .thumb_func
+        .type   rt_get_PSP, %function
+        .global rt_get_PSP
+rt_get_PSP:
+        .fnstart
+        .cantunwind
+
+        MRS     R0,PSP
+        BX      LR
+
+        .fnend
+        .size   rt_get_PSP, .-rt_get_PSP
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+#       void os_set_env (void);
+        /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+
+        .thumb_func
+        .type   os_set_env, %function
+        .global os_set_env
+os_set_env:
+        .fnstart
+        .cantunwind
+
+        MOV     R0,SP                   /* PSP = MSP */
+        MSR     PSP,R0
+        LDR     R0,=os_flags
+        LDRB    R0,[R0]
+        LSLS    R0,#31
+        BNE     PrivilegedE
+        MOVS    R0,#0x03                /* Unprivileged Thread mode, use PSP */
+        MSR     CONTROL,R0
+        BX      LR
+PrivilegedE:
+        MOVS    R0,#0x02                /* Privileged Thread mode, use PSP */
+        MSR     CONTROL,R0
+        BX      LR
+
+        .fnend
+        .size   os_set_env, .-os_set_env
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+#      void *_alloc_box (void *box_mem);
+       /* Function wrapper for Unprivileged/Privileged mode. */
+
+        .thumb_func
+        .type   _alloc_box, %function
+        .global _alloc_box
+_alloc_box:
+        .fnstart
+        .cantunwind
+
+        LDR     R3,=rt_alloc_box
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedA
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedA
+        SVC     0
+        BX      LR
+PrivilegedA:
+        BX      R12
+
+        .fnend
+        .size   _alloc_box, .-_alloc_box
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+#       int _free_box (void *box_mem, void *box);
+        /* Function wrapper for Unprivileged/Privileged mode. */
+
+        .thumb_func
+        .type   _free_box, %function
+        .global _free_box
+_free_box:
+        .fnstart
+        .cantunwind
+
+        LDR     R3,=rt_free_box
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedF
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedF
+        SVC     0
+        BX      LR
+PrivilegedF:
+        BX      R12
+
+        .fnend
+        .size   _free_box, .-_free_box
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+#       void SVC_Handler (void);
+
+        .thumb_func
+        .type   SVC_Handler, %function
+        .global SVC_Handler
+SVC_Handler:
+        .fnstart
+        .cantunwind
+
+        MRS     R0,PSP                  /* Read PSP */
+        LDR     R1,[R0,#24]             /* Read Saved PC from Stack */
+        SUBS    R1,R1,#2                /* Point to SVC Instruction */
+        LDRB    R1,[R1]                 /* Load SVC Number */
+        CMP     R1,#0
+        BNE     SVC_User                /* User SVC Number > 0 */
+
+        MOV     LR,R4
+        LDMIA   R0,{R0-R3,R4}           /* Read R0-R3,R12 from stack */
+        MOV     R12,R4
+        MOV     R4,LR
+        BLX     R12                     /* Call SVC Function */
+
+        MRS     R3,PSP                  /* Read PSP */
+        STMIA   R3!,{R0-R2}             /* Store return values */
+
+        LDR     R3,=os_tsk
+        LDMIA   R3!,{R1,R2}             /* os_tsk.run, os_tsk.new */
+        CMP     R1,R2
+        BEQ     SVC_Exit                /* no task switch */
+
+        SUBS    R3,#8
+        CMP     R1,#0                   /* Runtask deleted? */
+        BEQ     SVC_Next
+
+        MRS     R0,PSP                  /* Read PSP */
+        SUBS    R0,R0,#32               /* Adjust Start Address */
+        STR     R0,[R1,#TCB_TSTACK]     /* Update os_tsk.run->tsk_stack */       
+        STMIA   R0!,{R4-R7}             /* Save old context (R4-R7) */
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             /* Save old context (R8-R11) */
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            /* Check for Stack overflow */
+        POP     {R2,R3}
+
+SVC_Next:
+        STR     R2,[R3]                 /* os_tsk.run = os_tsk.new */
+
+        LDR     R0,[R2,#TCB_TSTACK]     /* os_tsk.new->tsk_stack */
+        ADDS    R0,R0,#16               /* Adjust Start Address */
+        LDMIA   R0!,{R4-R7}             /* Restore new Context (R8-R11) */
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  /* Write PSP */
+        SUBS    R0,R0,#32               /* Adjust Start Address */
+        LDMIA   R0!,{R4-R7}             /* Restore new Context (R4-R7) */
+
+SVC_Exit:
+        MOVS    R0,#~0xFFFFFFFD         /* Set EXC_RETURN value */
+        MVNS    R0,R0
+        BX      R0                      /* RETI to Thread Mode, use PSP */
+
+        /*------------------- User SVC ------------------------------*/
+
+SVC_User:
+        PUSH    {R4,LR}                 /* Save Registers */
+        LDR     R2,=SVC_Count
+        LDR     R2,[R2]
+        CMP     R1,R2
+        BHI     SVC_Done                /* Overflow */
+
+        LDR     R4,=SVC_Table-4
+        LSLS    R1,R1,#2
+        LDR     R4,[R4,R1]              /* Load SVC Function Address */
+        MOV     LR,R4
+
+        LDMIA   R0,{R0-R3,R4}           /* Read R0-R3,R12 from stack */
+        MOV     R12,R4
+        BLX     LR                      /* Call SVC Function */
+
+        MRS     R4,PSP                  /* Read PSP */
+        STMIA   R4!,{R0-R3}             /* Function return values */
+SVC_Done:
+        POP     {R4,PC}                 /* RETI */
+
+        .fnend
+        .size   SVC_Handler, .-SVC_Handler
+        
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+#       void PendSV_Handler (void);
+
+        .thumb_func
+        .type   PendSV_Handler, %function
+        .global PendSV_Handler
+        .global Sys_Switch
+PendSV_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      rt_pop_req
+
+Sys_Switch:
+        LDR     R3,=os_tsk
+        LDMIA   R3!,{R1,R2}             /* os_tsk.run, os_tsk.new */
+        CMP     R1,R2
+        BEQ     Sys_Exit                /* no task switch */
+
+        SUBS    R3,#8
+
+        MRS     R0,PSP                  /* Read PSP */
+        SUBS    R0,R0,#32               /* Adjust Start Address */
+        STR     R0,[R1,#TCB_TSTACK]     /* Update os_tsk.run->tsk_stack */
+        STMIA   R0!,{R4-R7}             /* Save old context (R4-R7) */
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             /* Save old context (R8-R11) */
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            /* Check for Stack overflow */
+        POP     {R2,R3}
+
+        STR     R2,[R3]                 /* os_tsk.run = os_tsk.new */
+
+        LDR     R0,[R2,#TCB_TSTACK]     /* os_tsk.new->tsk_stack */
+        ADDS    R0,R0,#16               /* Adjust Start Address */
+        LDMIA   R0!,{R4-R7}             /* Restore new Context (R8-R11) */
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  /* Write PSP */
+        SUBS    R0,R0,#32               /* Adjust Start Address */
+        LDMIA   R0!,{R4-R7}             /* Restore new Context (R4-R7) */
+
+Sys_Exit:
+        MOVS    R0,#~0xFFFFFFFD         /* Set EXC_RETURN value */
+        MVNS    R0,R0
+        BX      R0                      /* RETI to Thread Mode, use PSP */
+
+        .fnend
+        .size   PendSV_Handler, .-PendSV_Handler
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+#       void SysTick_Handler (void);
+
+        .thumb_func
+        .type   SysTick_Handler, %function
+        .global SysTick_Handler
+SysTick_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      rt_systick
+        B       Sys_Switch
+
+        .fnend
+        .size   SysTick_Handler, .-SysTick_Handler
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+#       void OS_Tick_Handler (void);
+
+        .thumb_func
+        .type   OS_Tick_Handler, %function
+        .global OS_Tick_Handler
+OS_Tick_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      os_tick_irqack
+        BL      rt_systick
+        B       Sys_Switch
+
+        .fnend
+        .size   OS_Tick_Handler, .-OS_Tick_Handler
+
+
+        .end
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC11U24/GCC_ARM/SVC_Table.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC11U24/GCC_ARM/SVC_Table.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,56 @@
+;/*----------------------------------------------------------------------------
+; *      RL-ARM - RTX
+; *----------------------------------------------------------------------------
+; *      Name:    SVC_TABLE.S
+; *      Purpose: Pre-defined SVC Table for Cortex-M
+; *      Rev.:    V4.60
+; *----------------------------------------------------------------------------
+; *
+; * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+; * All rights reserved.
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions are met:
+; *  - Redistributions of source code must retain the above copyright
+; *    notice, this list of conditions and the following disclaimer.
+; *  - Redistributions in binary form must reproduce the above copyright
+; *    notice, this list of conditions and the following disclaimer in the
+; *    documentation and/or other materials provided with the distribution.
+; *  - Neither the name of ARM  nor the names of its contributors may be used 
+; *    to endorse or promote products derived from this software without 
+; *    specific prior written permission.
+; *
+; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+; * POSSIBILITY OF SUCH DAMAGE.
+; *---------------------------------------------------------------------------*/
+
+
+        .file   "SVC_Table.S"
+
+
+        .section ".svc_table"
+
+        .global  SVC_Table
+SVC_Table:
+/* Insert user SVC functions here. SVC 0 used by RTL Kernel. */
+#       .long   __SVC_1                 /* user SVC function */
+SVC_End:
+
+        .global  SVC_Count
+SVC_Count:
+        .long   (SVC_End-SVC_Table)/4
+
+
+        .end
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC11U24/uARM/HAL_CM0.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC11U24/uARM/HAL_CM0.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,301 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM0.C
+ *      Purpose: Hardware Abstraction Layer for Cortex-M0
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_HAL_CM.h"
+#include "rt_Task.h"
+#include "rt_MemBox.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+__asm void rt_set_PSP (U32 stack) {
+        MSR     PSP,R0
+        BX      LR
+}
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+__asm U32 rt_get_PSP (void) {
+        MRS     R0,PSP
+        BX      LR
+}
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+__asm void os_set_env (void) {
+   /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+        MOV     R0,SP                   ; PSP = MSP
+        MSR     PSP,R0
+        LDR     R0,=__cpp(&os_flags)
+        LDRB    R0,[R0]
+        LSLS    R0,#31
+        BNE     PrivilegedE
+        MOVS    R0,#0x03                ; Unprivileged Thread mode, use PSP
+        MSR     CONTROL,R0
+        BX      LR
+PrivilegedE
+        MOVS    R0,#0x02                ; Privileged Thread mode, use PSP
+        MSR     CONTROL,R0
+        BX      LR
+
+        ALIGN
+}
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+__asm void *_alloc_box (void *box_mem) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R3,=__cpp(rt_alloc_box)
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedA
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedA
+        SVC     0
+        BX      LR
+PrivilegedA
+        BX      R12
+
+        ALIGN
+}
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+__asm int _free_box (void *box_mem, void *box) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R3,=__cpp(rt_free_box)
+        MOV     R12,R3
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BNE     PrivilegedF
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BEQ     PrivilegedF
+        SVC     0
+        BX      LR
+PrivilegedF
+        BX      R12
+
+        ALIGN
+}
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+__asm void SVC_Handler (void) {
+        PRESERVE8
+
+        IMPORT  SVC_Count
+        IMPORT  SVC_Table
+        IMPORT  rt_stk_check
+
+        MRS     R0,PSP                  ; Read PSP
+        LDR     R1,[R0,#24]             ; Read Saved PC from Stack
+        SUBS    R1,R1,#2                ; Point to SVC Instruction
+        LDRB    R1,[R1]                 ; Load SVC Number
+        CMP     R1,#0
+        BNE     SVC_User                ; User SVC Number > 0
+
+        MOV     LR,R4
+        LDMIA   R0,{R0-R3,R4}           ; Read R0-R3,R12 from stack
+        MOV     R12,R4
+        MOV     R4,LR
+        BLX     R12                     ; Call SVC Function 
+
+        MRS     R3,PSP                  ; Read PSP
+        STMIA   R3!,{R0-R2}             ; Store return values
+
+        LDR     R3,=__cpp(&os_tsk)
+        LDMIA   R3!,{R1,R2}             ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     SVC_Exit                ; no task switch
+
+        SUBS    R3,#8
+        CMP     R1,#0                   ; Runtask deleted?
+        BEQ     SVC_Next
+
+        MRS     R0,PSP                  ; Read PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        STR     R0,[R1,#TCB_TSTACK]     ; Update os_tsk.run->tsk_stack       
+        STMIA   R0!,{R4-R7}             ; Save old context (R4-R7)
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             ; Save old context (R8-R11)
+        
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+SVC_Next
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R0,[R2,#TCB_TSTACK]     ; os_tsk.new->tsk_stack
+        ADDS    R0,R0,#16               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R8-R11)
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  ; Write PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R4-R7)
+
+SVC_Exit
+        MOVS    R0,#:NOT:0xFFFFFFFD     ; Set EXC_RETURN value
+        MVNS    R0,R0
+        BX      R0                      ; RETI to Thread Mode, use PSP
+
+        /*------------------- User SVC ------------------------------*/
+
+SVC_User
+        PUSH    {R4,LR}                 ; Save Registers
+        LDR     R2,=SVC_Count
+        LDR     R2,[R2]
+        CMP     R1,R2
+        BHI     SVC_Done                ; Overflow
+
+        LDR     R4,=SVC_Table-4
+        LSLS    R1,R1,#2
+        LDR     R4,[R4,R1]              ; Load SVC Function Address
+        MOV     LR,R4
+
+        LDMIA   R0,{R0-R3,R4}           ; Read R0-R3,R12 from stack
+        MOV     R12,R4
+        BLX     LR                      ; Call SVC Function
+
+        MRS     R4,PSP                  ; Read PSP
+        STMIA   R4!,{R0-R3}             ; Function return values
+SVC_Done
+        POP     {R4,PC}                 ; RETI
+
+        ALIGN
+}
+
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+__asm void PendSV_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_pop_req)
+
+Sys_Switch
+        LDR     R3,=__cpp(&os_tsk)
+        LDMIA   R3!,{R1,R2}             ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     Sys_Exit                ; no task switch
+
+        SUBS    R3,#8
+
+        MRS     R0,PSP                  ; Read PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        STR     R0,[R1,#TCB_TSTACK]     ; Update os_tsk.run->tsk_stack
+        STMIA   R0!,{R4-R7}             ; Save old context (R4-R7)
+        MOV     R4,R8
+        MOV     R5,R9
+        MOV     R6,R10
+        MOV     R7,R11
+        STMIA   R0!,{R4-R7}             ; Save old context (R8-R11)
+        
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R0,[R2,#TCB_TSTACK]     ; os_tsk.new->tsk_stack
+        ADDS    R0,R0,#16               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R8-R11)
+        MOV     R8,R4
+        MOV     R9,R5
+        MOV     R10,R6
+        MOV     R11,R7
+        MSR     PSP,R0                  ; Write PSP
+        SUBS    R0,R0,#32               ; Adjust Start Address
+        LDMIA   R0!,{R4-R7}             ; Restore new Context (R4-R7)
+
+Sys_Exit
+        MOVS    R0,#:NOT:0xFFFFFFFD     ; Set EXC_RETURN value
+        MVNS    R0,R0
+        BX      R0                      ; RETI to Thread Mode, use PSP
+
+        ALIGN
+}
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+__asm void SysTick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+__asm void OS_Tick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(os_tick_irqack)
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC11U24/uARM/SVC_Table.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC11U24/uARM/SVC_Table.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,57 @@
+;/*----------------------------------------------------------------------------
+; *      RL-ARM - RTX
+; *----------------------------------------------------------------------------
+; *      Name:    SVC_TABLE.S
+; *      Purpose: Pre-defined SVC Table for Cortex-M
+; *      Rev.:    V4.60
+; *----------------------------------------------------------------------------
+; *
+; * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+; * All rights reserved.
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions are met:
+; *  - Redistributions of source code must retain the above copyright
+; *    notice, this list of conditions and the following disclaimer.
+; *  - Redistributions in binary form must reproduce the above copyright
+; *    notice, this list of conditions and the following disclaimer in the
+; *    documentation and/or other materials provided with the distribution.
+; *  - Neither the name of ARM  nor the names of its contributors may be used 
+; *    to endorse or promote products derived from this software without 
+; *    specific prior written permission.
+; *
+; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+; * POSSIBILITY OF SUCH DAMAGE.
+; *---------------------------------------------------------------------------*/
+
+
+                AREA    SVC_TABLE, CODE, READONLY
+
+                EXPORT  SVC_Count
+
+SVC_Cnt         EQU    (SVC_End-SVC_Table)/4
+SVC_Count       DCD     SVC_Cnt
+
+; Import user SVC functions here.
+;               IMPORT  __SVC_1
+
+                EXPORT  SVC_Table
+SVC_Table
+; Insert user SVC functions here. SVC 0 used by RTL Kernel.
+;               DCD     __SVC_1                 ; user SVC function
+
+SVC_End
+
+                END
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC1768/ARM/HAL_CM3.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC1768/ARM/HAL_CM3.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,249 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM3.C
+ *      Purpose: Hardware Abstraction Layer for Cortex-M3
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_HAL_CM.h"
+#include "rt_Task.h"
+#include "rt_MemBox.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+__asm void rt_set_PSP (U32 stack) {
+        MSR     PSP,R0
+        BX      LR
+}
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+__asm U32 rt_get_PSP (void) {
+        MRS     R0,PSP
+        BX      LR
+}
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+__asm void os_set_env (void) {
+   /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+        MOV     R0,SP                   ; PSP = MSP
+        MSR     PSP,R0
+        LDR     R0,=__cpp(&os_flags)
+        LDRB    R0,[R0]
+        LSLS    R0,#31
+        MOVNE   R0,#0x02                ; Privileged Thread mode, use PSP
+        MOVEQ   R0,#0x03                ; Unprivileged Thread mode, use PSP
+        MSR     CONTROL,R0
+        BX      LR
+
+        ALIGN
+}
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+__asm void *_alloc_box (void *box_mem) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R12,=__cpp(rt_alloc_box)
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BXNE    R12
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BXEQ    R12
+        SVC     0
+        BX      LR
+
+        ALIGN
+}
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+__asm int _free_box (void *box_mem, void *box) {
+   /* Function wrapper for Unprivileged/Privileged mode. */
+        LDR     R12,=__cpp(rt_free_box)
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        BXNE    R12
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        BXEQ    R12
+        SVC     0
+        BX      LR
+
+        ALIGN
+}
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+__asm void SVC_Handler (void) {
+        PRESERVE8
+
+        IMPORT  SVC_Count
+        IMPORT  SVC_Table
+        IMPORT  rt_stk_check
+
+        MRS     R0,PSP                  ; Read PSP
+        LDR     R1,[R0,#24]             ; Read Saved PC from Stack
+        LDRB    R1,[R1,#-2]             ; Load SVC Number
+        CBNZ    R1,SVC_User
+
+        LDM     R0,{R0-R3,R12}          ; Read R0-R3,R12 from stack
+        BLX     R12                     ; Call SVC Function 
+
+        MRS     R12,PSP                 ; Read PSP
+        STM     R12,{R0-R2}             ; Store return values
+
+        LDR     R3,=__cpp(&os_tsk)
+        LDM     R3,{R1,R2}              ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     SVC_Exit                ; no task switch
+
+        CBZ     R1,SVC_Next             ; Runtask deleted?
+        STMDB   R12!,{R4-R11}           ; Save Old context
+        STR     R12,[R1,#TCB_TSTACK]    ; Update os_tsk.run->tsk_stack
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+SVC_Next
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R12,[R2,#TCB_TSTACK]    ; os_tsk.new->tsk_stack
+        LDMIA   R12!,{R4-R11}           ; Restore New Context
+        MSR     PSP,R12                 ; Write PSP
+
+SVC_Exit
+        MVN     LR,#:NOT:0xFFFFFFFD     ; set EXC_RETURN value
+        BX      LR
+
+        /*------------------- User SVC ------------------------------*/
+
+SVC_User
+        PUSH    {R4,LR}                 ; Save Registers
+        LDR     R2,=SVC_Count
+        LDR     R2,[R2]
+        CMP     R1,R2
+        BHI     SVC_Done                ; Overflow
+
+        LDR     R4,=SVC_Table-4
+        LDR     R4,[R4,R1,LSL #2]       ; Load SVC Function Address
+
+        LDM     R0,{R0-R3,R12}          ; Read R0-R3,R12 from stack
+        BLX     R4                      ; Call SVC Function
+
+        MRS     R12,PSP
+        STM     R12,{R0-R3}             ; Function return values
+SVC_Done
+        POP     {R4,PC}                 ; RETI
+
+        ALIGN
+}
+
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+__asm void PendSV_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_pop_req)
+
+Sys_Switch
+        LDR     R3,=__cpp(&os_tsk)
+        LDM     R3,{R1,R2}              ; os_tsk.run, os_tsk.new
+        CMP     R1,R2
+        BEQ     Sys_Exit
+
+        MRS     R12,PSP                 ; Read PSP
+        STMDB   R12!,{R4-R11}           ; Save Old context
+        STR     R12,[R1,#TCB_TSTACK]    ; Update os_tsk.run->tsk_stack
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            ; Check for Stack overflow
+        POP     {R2,R3}
+
+        STR     R2,[R3]                 ; os_tsk.run = os_tsk.new
+
+        LDR     R12,[R2,#TCB_TSTACK]    ; os_tsk.new->tsk_stack
+        LDMIA   R12!,{R4-R11}           ; Restore New Context
+        MSR     PSP,R12                 ; Write PSP
+
+Sys_Exit
+        MVN     LR,#:NOT:0xFFFFFFFD     ; set EXC_RETURN value
+        BX      LR                      ; Return to Thread Mode
+
+        ALIGN
+}
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+__asm void SysTick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+__asm void OS_Tick_Handler (void) {
+        PRESERVE8
+
+        BL      __cpp(os_tick_irqack)
+        BL      __cpp(rt_systick)
+        B       Sys_Switch
+
+        ALIGN
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC1768/ARM/SVC_Table.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC1768/ARM/SVC_Table.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,57 @@
+;/*----------------------------------------------------------------------------
+; *      RL-ARM - RTX
+; *----------------------------------------------------------------------------
+; *      Name:    SVC_TABLE.S
+; *      Purpose: Pre-defined SVC Table for Cortex-M
+; *      Rev.:    V4.60
+; *----------------------------------------------------------------------------
+; *
+; * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+; * All rights reserved.
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions are met:
+; *  - Redistributions of source code must retain the above copyright
+; *    notice, this list of conditions and the following disclaimer.
+; *  - Redistributions in binary form must reproduce the above copyright
+; *    notice, this list of conditions and the following disclaimer in the
+; *    documentation and/or other materials provided with the distribution.
+; *  - Neither the name of ARM  nor the names of its contributors may be used 
+; *    to endorse or promote products derived from this software without 
+; *    specific prior written permission.
+; *
+; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+; * POSSIBILITY OF SUCH DAMAGE.
+; *---------------------------------------------------------------------------*/
+
+
+                AREA    SVC_TABLE, CODE, READONLY
+
+                EXPORT  SVC_Count
+
+SVC_Cnt         EQU    (SVC_End-SVC_Table)/4
+SVC_Count       DCD     SVC_Cnt
+
+; Import user SVC functions here.
+;               IMPORT  __SVC_1
+
+                EXPORT  SVC_Table
+SVC_Table
+; Insert user SVC functions here. SVC 0 used by RTL Kernel.
+;               DCD     __SVC_1                 ; user SVC function
+
+SVC_End
+
+                END
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC1768/GCC_ARM/HAL_CM3.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC1768/GCC_ARM/HAL_CM3.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,323 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    HAL_CM3.S
+ *      Purpose: Hardware Abstraction Layer for Cortex-M3
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+        .file   "HAL_CM3.S"
+        .syntax unified
+
+        .equ    TCB_TSTACK, 36
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+        .thumb
+
+        .section ".text"
+        .align  2
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+#       void rt_set_PSP (U32 stack);
+
+        .thumb_func
+        .type   rt_set_PSP, %function
+        .global rt_set_PSP
+rt_set_PSP:
+        .fnstart
+        .cantunwind
+
+        MSR     PSP,R0
+        BX      LR
+
+        .fnend
+        .size   rt_set_PSP, .-rt_set_PSP
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+#       U32 rt_get_PSP (void);
+
+        .thumb_func
+        .type   rt_get_PSP, %function
+        .global rt_get_PSP
+rt_get_PSP:
+        .fnstart
+        .cantunwind
+
+        MRS     R0,PSP
+        BX      LR
+
+        .fnend
+        .size   rt_get_PSP, .-rt_get_PSP
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+#       void os_set_env (void);
+        /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+
+        .thumb_func
+        .type   os_set_env, %function
+        .global os_set_env
+os_set_env:
+        .fnstart
+        .cantunwind
+
+        MOV     R0,SP                   /* PSP = MSP */
+        MSR     PSP,R0
+        LDR     R0,=os_flags
+        LDRB    R0,[R0]
+        LSLS    R0,#31
+        ITE     NE
+        MOVNE   R0,#0x02                /* Privileged Thread mode, use PSP */
+        MOVEQ   R0,#0x03                /* Unprivileged Thread mode, use PSP */
+        MSR     CONTROL,R0
+        BX      LR
+
+        .fnend
+        .size   os_set_env, .-os_set_env
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+#      void *_alloc_box (void *box_mem);
+       /* Function wrapper for Unprivileged/Privileged mode. */
+
+        .thumb_func
+        .type   _alloc_box, %function
+        .global _alloc_box
+_alloc_box:
+        .fnstart
+        .cantunwind
+
+        LDR     R12,=rt_alloc_box
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        IT      NE
+        BXNE    R12
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        IT      EQ
+        BXEQ    R12
+        SVC     0
+        BX      LR
+
+        .fnend
+        .size   _alloc_box, .-_alloc_box
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+#       int _free_box (void *box_mem, void *box);
+        /* Function wrapper for Unprivileged/Privileged mode. */
+
+        .thumb_func
+        .type   _free_box, %function
+        .global _free_box
+_free_box:
+        .fnstart
+        .cantunwind
+
+        LDR     R12,=rt_free_box
+        MRS     R3,IPSR
+        LSLS    R3,#24
+        IT      NE
+        BXNE    R12
+        MRS     R3,CONTROL
+        LSLS    R3,#31
+        IT      EQ
+        BXEQ    R12
+        SVC     0
+        BX      LR
+
+        .fnend
+        .size   _free_box, .-_free_box
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+#       void SVC_Handler (void);
+
+        .thumb_func
+        .type   SVC_Handler, %function
+        .global SVC_Handler
+SVC_Handler:
+        .fnstart
+        .cantunwind
+
+        MRS     R0,PSP                  /* Read PSP */
+        LDR     R1,[R0,#24]             /* Read Saved PC from Stack */
+        LDRB    R1,[R1,#-2]             /* Load SVC Number */
+        CBNZ    R1,SVC_User
+
+        LDM     R0,{R0-R3,R12}          /* Read R0-R3,R12 from stack */
+        BLX     R12                     /* Call SVC Function */
+
+        MRS     R12,PSP                 /* Read PSP */
+        STM     R12,{R0-R2}             /* Store return values */
+
+        LDR     R3,=os_tsk
+        LDM     R3,{R1,R2}              /* os_tsk.run, os_tsk.new */
+        CMP     R1,R2
+        BEQ     SVC_Exit                /* no task switch */
+
+        CBZ     R1,SVC_Next             /* Runtask deleted? */
+        STMDB   R12!,{R4-R11}           /* Save Old context */
+        STR     R12,[R1,#TCB_TSTACK]    /* Update os_tsk.run->tsk_stack */
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            /* Check for Stack overflow */
+        POP     {R2,R3}
+
+SVC_Next:
+        STR     R2,[R3]                 /* os_tsk.run = os_tsk.new */
+
+        LDR     R12,[R2,#TCB_TSTACK]    /* os_tsk.new->tsk_stack */
+        LDMIA   R12!,{R4-R11}           /* Restore New Context */
+        MSR     PSP,R12                 /* Write PSP */
+
+SVC_Exit:
+        MVN     LR,#~0xFFFFFFFD         /* set EXC_RETURN value */
+        BX      LR
+
+        /*------------------- User SVC ------------------------------*/
+
+SVC_User:
+        PUSH    {R4,LR}                 /* Save Registers */
+        LDR     R2,=SVC_Count
+        LDR     R2,[R2]
+        CMP     R1,R2
+        BHI     SVC_Done                /* Overflow */
+
+        LDR     R4,=SVC_Table-4
+        LDR     R4,[R4,R1,LSL #2]       /* Load SVC Function Address */
+
+        LDM     R0,{R0-R3,R12}          /* Read R0-R3,R12 from stack */
+        BLX     R4                      /* Call SVC Function */
+
+        MRS     R12,PSP
+        STM     R12,{R0-R3}             /* Function return values */
+SVC_Done:
+        POP     {R4,PC}                 /* RETI */
+
+        .fnend
+        .size   SVC_Handler, .-SVC_Handler
+        
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+#       void PendSV_Handler (void);
+
+        .thumb_func
+        .type   PendSV_Handler, %function
+        .global PendSV_Handler
+        .global Sys_Switch
+PendSV_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      rt_pop_req
+
+Sys_Switch:
+        LDR     R3,=os_tsk
+        LDM     R3,{R1,R2}              /* os_tsk.run, os_tsk.new */
+        CMP     R1,R2
+        BEQ     Sys_Exit
+
+        MRS     R12,PSP                 /* Read PSP */
+        STMDB   R12!,{R4-R11}           /* Save Old context */
+        STR     R12,[R1,#TCB_TSTACK]    /* Update os_tsk.run->tsk_stack */
+
+        PUSH    {R2,R3}
+        BL      rt_stk_check            /* Check for Stack overflow */
+        POP     {R2,R3}
+
+        STR     R2,[R3]                 /* os_tsk.run = os_tsk.new */
+
+        LDR     R12,[R2,#TCB_TSTACK]    /* os_tsk.new->tsk_stack */
+        LDMIA   R12!,{R4-R11}           /* Restore New Context */
+        MSR     PSP,R12                 /* Write PSP */
+
+Sys_Exit:
+        MVN     LR,#~0xFFFFFFFD         /* set EXC_RETURN value */
+        BX      LR                      /* Return to Thread Mode */
+
+        .fnend
+        .size   PendSV_Handler, .-PendSV_Handler
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+#       void SysTick_Handler (void);
+
+        .thumb_func
+        .type   SysTick_Handler, %function
+        .global SysTick_Handler
+SysTick_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      rt_systick
+        B       Sys_Switch
+
+        .fnend
+        .size   SysTick_Handler, .-SysTick_Handler
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+#       void OS_Tick_Handler (void);
+
+        .thumb_func
+        .type   OS_Tick_Handler, %function
+        .global OS_Tick_Handler
+OS_Tick_Handler:
+        .fnstart
+        .cantunwind
+
+        BL      os_tick_irqack
+        BL      rt_systick
+        B       Sys_Switch
+
+        .fnend
+        .size   OS_Tick_Handler, .-OS_Tick_Handler
+
+
+        .end
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/LPC1768/GCC_ARM/SVC_Table.s
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/LPC1768/GCC_ARM/SVC_Table.s	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,56 @@
+;/*----------------------------------------------------------------------------
+; *      RL-ARM - RTX
+; *----------------------------------------------------------------------------
+; *      Name:    SVC_TABLE.S
+; *      Purpose: Pre-defined SVC Table for Cortex-M
+; *      Rev.:    V4.60
+; *----------------------------------------------------------------------------
+; *
+; * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+; * All rights reserved.
+; * Redistribution and use in source and binary forms, with or without
+; * modification, are permitted provided that the following conditions are met:
+; *  - Redistributions of source code must retain the above copyright
+; *    notice, this list of conditions and the following disclaimer.
+; *  - Redistributions in binary form must reproduce the above copyright
+; *    notice, this list of conditions and the following disclaimer in the
+; *    documentation and/or other materials provided with the distribution.
+; *  - Neither the name of ARM  nor the names of its contributors may be used 
+; *    to endorse or promote products derived from this software without 
+; *    specific prior written permission.
+; *
+; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+; * POSSIBILITY OF SUCH DAMAGE.
+; *---------------------------------------------------------------------------*/
+
+
+        .file   "SVC_Table.S"
+
+
+        .section ".svc_table"
+
+        .global  SVC_Table
+SVC_Table:
+/* Insert user SVC functions here. SVC 0 used by RTL Kernel. */
+#       .long   __SVC_1                 /* user SVC function */
+SVC_End:
+
+        .global  SVC_Count
+SVC_Count:
+        .long   (SVC_End-SVC_Table)/4
+
+
+        .end
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/RTX_CM_lib.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/RTX_CM_lib.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,371 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RTX_CM_LIB.H
+ *      Purpose: RTX Kernel System Configuration
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+#include "error.h"
+
+#if   defined (__CC_ARM)
+#pragma O3
+#define __USED __attribute__((used))
+#elif defined (__GNUC__)
+#pragma GCC optimize ("O3")
+#define __USED __attribute__((used))
+#elif defined (__ICCARM__)
+#define __USED __root
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *      Definitions
+ *---------------------------------------------------------------------------*/
+
+#define _declare_box(pool,size,cnt)  uint32_t pool[(((size)+3)/4)*(cnt) + 3]
+#define _declare_box8(pool,size,cnt) uint64_t pool[(((size)+7)/8)*(cnt) + 2]
+
+#define OS_TCB_SIZE     48
+#define OS_TMR_SIZE     8
+
+#if defined (__CC_ARM) && !defined (__MICROLIB)
+
+typedef void    *OS_ID;
+typedef uint32_t OS_TID;
+typedef uint32_t OS_MUT[3];
+typedef uint32_t OS_RESULT;
+
+#define runtask_id()    rt_tsk_self()
+#define mutex_init(m)   rt_mut_init(m)
+#define mutex_wait(m)   os_mut_wait(m,0xFFFF)
+#define mutex_rel(m)    os_mut_release(m)
+
+extern OS_TID    rt_tsk_self    (void);
+extern void      rt_mut_init    (OS_ID mutex);
+extern OS_RESULT rt_mut_release (OS_ID mutex);
+extern OS_RESULT rt_mut_wait    (OS_ID mutex, uint16_t timeout);
+
+#define os_mut_wait(mutex,timeout) _os_mut_wait((uint32_t)rt_mut_wait,mutex,timeout)
+#define os_mut_release(mutex)      _os_mut_release((uint32_t)rt_mut_release,mutex)
+
+OS_RESULT _os_mut_release (uint32_t p, OS_ID mutex)                   __svc_indirect(0);
+OS_RESULT _os_mut_wait    (uint32_t p, OS_ID mutex, uint16_t timeout) __svc_indirect(0);
+
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+#if (OS_TIMERS != 0)
+#define OS_TASK_CNT (OS_TASKCNT + 1)
+#else
+#define OS_TASK_CNT  OS_TASKCNT
+#endif
+
+uint16_t const os_maxtaskrun = OS_TASK_CNT;
+uint32_t const os_rrobin     = (OS_ROBIN << 16) | OS_ROBINTOUT;
+uint32_t const os_trv        = OS_TRV;
+uint8_t  const os_flags      = OS_RUNPRIV;
+
+/* Export following defines to uVision debugger. */
+__USED uint32_t const os_clockrate = OS_TICK;
+__USED uint32_t const os_timernum  = 0;
+
+/* Stack for the os_idle_demon */
+unsigned int idle_task_stack[OS_IDLESTKSIZE];
+unsigned short const idle_task_stack_size = OS_IDLESTKSIZE;
+
+#ifndef OS_FIFOSZ
+ #define OS_FIFOSZ      16
+#endif
+
+/* Fifo Queue buffer for ISR requests.*/
+uint32_t       os_fifo[OS_FIFOSZ*2+1];
+uint8_t  const os_fifo_size = OS_FIFOSZ;
+
+/* An array of Active task pointers. */
+void *os_active_TCB[OS_TASK_CNT];
+
+/* User Timers Resources */
+#if (OS_TIMERS != 0)
+extern void osTimerThread (void const *argument);
+osThreadDef(osTimerThread, (osPriority)(OS_TIMERPRIO-3), 4*OS_TIMERSTKSZ);
+osThreadId osThreadId_osTimerThread;
+osMessageQDef(osTimerMessageQ, OS_TIMERCBQS, void *);
+osMessageQId osMessageQId_osTimerMessageQ;
+#else
+osThreadDef_t os_thread_def_osTimerThread = { NULL };
+osThreadId osThreadId_osTimerThread;
+osMessageQDef(osTimerMessageQ, 0, void *);
+osMessageQId osMessageQId_osTimerMessageQ;
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *      RTX Optimizations (empty functions)
+ *---------------------------------------------------------------------------*/
+
+#if OS_ROBIN == 0
+ void rt_init_robin (void) {;}
+ void rt_chk_robin  (void) {;}
+#endif
+
+#if OS_STKCHECK == 0
+ void rt_stk_check  (void) {;}
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *      Standard Library multithreading interface
+ *---------------------------------------------------------------------------*/
+
+#if defined (__CC_ARM) && !defined (__MICROLIB)
+ static OS_MUT   std_libmutex[OS_MUTEXCNT];
+ static uint32_t nr_mutex;
+
+ /*--------------------------- _mutex_initialize -----------------------------*/
+ 
+int _mutex_initialize (OS_ID *mutex) {
+  /* Allocate and initialize a system mutex. */
+
+  if (nr_mutex >= OS_MUTEXCNT) {
+    /* If you are here, you need to increase the number OS_MUTEXCNT. */
+    error("Not enough stdlib mutexes\n");
+  }
+  *mutex = &std_libmutex[nr_mutex++];
+  mutex_init (*mutex);
+  return (1);
+}
+
+
+/*--------------------------- _mutex_acquire --------------------------------*/
+
+__attribute__((used)) void _mutex_acquire (OS_ID *mutex) {
+  /* Acquire a system mutex, lock stdlib resources. */
+  if (runtask_id ()) {
+    /* RTX running, acquire a mutex. */
+    mutex_wait (*mutex);
+  }
+}
+
+
+/*--------------------------- _mutex_release --------------------------------*/
+
+__attribute__((used)) void _mutex_release (OS_ID *mutex) {
+  /* Release a system mutex, unlock stdlib resources. */
+  if (runtask_id ()) {
+    /* RTX running, release a mutex. */
+    mutex_rel (*mutex);
+  }
+}
+
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *      RTX Startup
+ *---------------------------------------------------------------------------*/
+
+/* Main Thread definition */
+extern int main (void);
+osThreadDef_t os_thread_def_main = {(os_pthread)main, osPriorityNormal, 0, NULL};
+
+#if defined (__CC_ARM)
+
+// This define should be probably moved to the CMSIS layer
+#ifdef TARGET_LPC1768
+#define INITIAL_SP            (0x10008000UL)
+
+#elif TARGET_LPC11U24
+#define INITIAL_SP            (0x10001000UL)
+
+#elif TARGET_KL25Z
+#define INITIAL_SP            (0x20003000UL)
+
+#endif
+
+extern unsigned char Image$$RW_IRAM1$$ZI$$Limit[];
+
+void set_main_stack(void) {
+    // Leave OS_SCHEDULERSTKSIZE words for the scheduler and interrupts
+    os_thread_def_main.stack_pointer = Image$$RW_IRAM1$$ZI$$Limit;
+    os_thread_def_main.stacksize = (INITIAL_SP - (unsigned int)Image$$RW_IRAM1$$ZI$$Limit) - (OS_SCHEDULERSTKSIZE * 4);
+}
+
+#ifdef __MICROLIB
+void _main_init (void) __attribute__((section(".ARM.Collect$$$$000000FF")));
+void _main_init (void) {
+  osKernelInitialize();
+  set_main_stack();
+  osThreadCreate(&os_thread_def_main, NULL);
+  osKernelStart();
+  for (;;);
+}
+#else
+
+/* The single memory model is checking for stack collision at run time, verifing
+   that the heap pointer is underneath the stack pointer.
+   
+   With the RTOS there is not only one stack above the heap, there are multiple
+   stacks and some of them are underneath the heap pointer.
+*/
+#pragma import(__use_two_region_memory)
+
+__asm void __rt_entry (void) {
+
+  IMPORT  __user_setup_stackheap
+  IMPORT  __rt_lib_init
+  IMPORT  os_thread_def_main
+  IMPORT  osKernelInitialize
+  IMPORT  set_main_stack
+  IMPORT  osKernelStart
+  IMPORT  osThreadCreate
+  IMPORT  exit
+
+  BL      __user_setup_stackheap
+  MOV     R1,R2
+  BL      __rt_lib_init
+  BL      osKernelInitialize
+  BL      set_main_stack
+  LDR     R0,=os_thread_def_main
+  MOVS    R1,#0
+  BL      osThreadCreate
+  BL      osKernelStart
+  BL      exit
+
+  ALIGN
+}
+#endif
+
+#elif defined (__GNUC__)
+
+#ifdef __CS3__
+
+/* CS3 start_c routine.
+ *
+ * Copyright (c) 2006, 2007 CodeSourcery Inc
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include "cs3.h"
+
+extern void __libc_init_array (void);
+
+__attribute ((noreturn)) void __cs3_start_c (void){
+  unsigned regions = __cs3_region_num;
+  const struct __cs3_region *rptr = __cs3_regions;
+
+  /* Initialize memory */
+  for (regions = __cs3_region_num, rptr = __cs3_regions; regions--; rptr++) {
+    long long *src = (long long *)rptr->init;
+    long long *dst = (long long *)rptr->data;
+    unsigned limit = rptr->init_size;
+    unsigned count;
+
+    if (src != dst)
+      for (count = 0; count != limit; count += sizeof (long long))
+        *dst++ = *src++;
+    else 
+      dst = (long long *)((char *)dst + limit);
+    limit = rptr->zero_size;
+    for (count = 0; count != limit; count += sizeof (long long))
+      *dst++ = 0;
+  }
+
+  /* Run initializers.  */
+  __libc_init_array ();
+
+  osKernelInitialize();
+  osThreadCreate(&os_thread_def_main, NULL);
+  osKernelStart();
+  for (;;);
+}
+
+#else
+
+__attribute__((naked)) void software_init_hook (void) {
+  __asm (
+    ".syntax unified\n"
+    ".thumb\n"
+    "movs r0,#0\n"
+    "movs r1,#0\n"
+    "mov  r4,r0\n"
+    "mov  r5,r1\n"
+    "ldr  r0,= __libc_fini_array\n"
+    "bl   atexit\n"
+    "bl   __libc_init_array\n"
+    "mov  r0,r4\n"
+    "mov  r1,r5\n"
+    "bl   osKernelInitialize\n"
+    "ldr  r0,=os_thread_def_main\n"
+    "movs r1,#0\n"
+    "bl   osThreadCreate\n"
+    "bl   osKernelStart\n"
+    "bl   exit\n"
+  );
+}
+
+#endif
+
+#elif defined (__ICCARM__)
+
+extern int  __low_level_init(void);
+extern void __iar_data_init3(void);
+extern void exit(int arg);
+
+__noreturn __stackless void __cmain(void) {
+  int a;
+  
+  if (__low_level_init() != 0) {
+    __iar_data_init3();
+  }
+  osKernelInitialize();
+  osThreadCreate(&os_thread_def_main, NULL);
+  a = osKernelStart();
+  exit(a);
+}
+
+#endif
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/RTX_Conf.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/RTX_Conf.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,72 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RTX_CONFIG.H
+ *      Purpose: Exported functions of RTX_Config.c
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+
+/* Error Codes */
+#define OS_ERR_STK_OVF          1
+#define OS_ERR_FIFO_OVF         2
+#define OS_ERR_MBX_OVF          3
+
+/* Definitions */
+#define BOX_ALIGN_8                   0x80000000
+#define _declare_box(pool,size,cnt)   U32 pool[(((size)+3)/4)*(cnt) + 3]
+#define _declare_box8(pool,size,cnt)  U64 pool[(((size)+7)/8)*(cnt) + 2]
+#define _init_box8(pool,size,bsize)   _init_box (pool,size,(bsize) | BOX_ALIGN_8)
+
+/* Variables */
+extern U32 idle_task_stack[];
+extern U32 os_fifo[];
+extern void *os_active_TCB[];
+
+/* Constants */
+extern U16 const os_maxtaskrun;
+extern U32 const os_trv;
+extern U8  const os_flags;
+extern U32 const os_rrobin;
+extern U32 const os_clockrate;
+extern U32 const os_timernum;
+extern U16 const idle_task_stack_size;
+
+extern U8  const os_fifo_size;
+
+/* Functions */
+extern void os_idle_demon   (void);
+extern int  os_tick_init    (void);
+extern void os_tick_irqack  (void);
+extern void os_tmr_call     (U16  info);
+extern void os_error        (U32 err_code);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/RTX_Conf_CM.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/RTX_Conf_CM.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,242 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RTX_Conf_CM.C
+ *      Purpose: Configuration of CMSIS RTX Kernel for Cortex-M
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "cmsis_os.h"
+
+
+/*----------------------------------------------------------------------------
+ *      RTX User configuration part BEGIN
+ *---------------------------------------------------------------------------*/
+
+//-------- <<< Use Configuration Wizard in Context Menu >>> -----------------
+//
+// <h>Thread Configuration
+// =======================
+//
+//   <o>Number of concurrent running threads <0-250>
+//   <i> Defines max. number of threads that will run at the same time.
+//       counting "main", but not counting "osTimerThread"
+//   <i> Default: 6
+#ifndef OS_TASKCNT
+#  if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
+#    define OS_TASKCNT         14
+#  elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z)
+#    define OS_TASKCNT         6
+#  endif
+#endif
+
+//   <o>Scheduler (+ interrupts) stack size [bytes] <64-4096:8><#/4>
+#ifndef OS_SCHEDULERSTKSIZE
+#  if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
+#      define OS_SCHEDULERSTKSIZE    256
+#  elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z)
+#      define OS_SCHEDULERSTKSIZE    128
+#  endif
+#endif
+
+//   <o>Idle stack size [bytes] <64-4096:8><#/4>
+//   <i> Defines default stack size for the Idle thread.
+#ifndef OS_IDLESTKSIZE
+ #define OS_IDLESTKSIZE         128
+#endif
+
+//   <o>Timer Thread stack size [bytes] <64-4096:8><#/4>
+//   <i> Defines stack size for Timer thread.
+//   <i> Default: 200
+#ifndef OS_TIMERSTKSZ
+ #define OS_TIMERSTKSZ  WORDS_STACK_SIZE
+#endif
+
+// <q>Check for stack overflow
+// <i> Includes the stack checking code for stack overflow.
+// <i> Note that additional code reduces the Kernel performance.
+#ifndef OS_STKCHECK
+ #define OS_STKCHECK    1
+#endif
+
+// <o>Processor mode for thread execution 
+//   <0=> Unprivileged mode 
+//   <1=> Privileged mode
+// <i> Default: Privileged mode
+#ifndef OS_RUNPRIV
+ #define OS_RUNPRIV     1
+#endif
+
+// </h>
+// <h>SysTick Timer Configuration
+// ==============================
+//
+//   <o>Timer clock value [Hz] <1-1000000000>
+//   <i> Defines the timer clock value.
+//   <i> Default: 6000000  (6MHz)
+#ifndef OS_CLOCK
+#  if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
+#    define OS_CLOCK       96000000
+
+#  elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z)
+#    define OS_CLOCK       48000000
+#  endif
+#endif
+
+//   <o>Timer tick value [us] <1-1000000>
+//   <i> Defines the timer tick value.
+//   <i> Default: 1000  (1ms)
+#ifndef OS_TICK
+ #define OS_TICK        1000
+#endif
+
+// </h>
+
+// <h>System Configuration
+// =======================
+//
+// <e>Round-Robin Thread switching
+// ===============================
+//
+// <i> Enables Round-Robin Thread switching.
+#ifndef OS_ROBIN
+ #define OS_ROBIN       1
+#endif
+
+//   <o>Round-Robin Timeout [ticks] <1-1000>
+//   <i> Defines how long a thread will execute before a thread switch.
+//   <i> Default: 5
+#ifndef OS_ROBINTOUT
+ #define OS_ROBINTOUT   5
+#endif
+
+// </e>
+
+// <e>User Timers
+// ==============
+//   <i> Enables user Timers
+#ifndef OS_TIMERS
+ #define OS_TIMERS      1
+#endif
+
+//   <o>Timer Thread Priority
+//                        <1=> Low
+//                        <2=> Below Normal
+//                        <3=> Normal
+//                        <4=> Above Normal
+//                        <5=> High
+//                        <6=> Realtime (highest)
+//   <i> Defines priority for Timer Thread
+//   <i> Default: High
+#ifndef OS_TIMERPRIO
+ #define OS_TIMERPRIO   5
+#endif
+
+//   <o>Timer Callback Queue size <1-32>
+//   <i> Number of concurrent active timer callback functions.
+//   <i> Default: 4
+#ifndef OS_TIMERCBQSZ
+ #define OS_TIMERCBQS   4
+#endif
+
+// </e>
+
+//   <o>ISR FIFO Queue size<4=>   4 entries  <8=>   8 entries
+//                         <12=> 12 entries  <16=> 16 entries
+//                         <24=> 24 entries  <32=> 32 entries
+//                         <48=> 48 entries  <64=> 64 entries
+//                         <96=> 96 entries
+//   <i> ISR functions store requests to this buffer,
+//   <i> when they are called from the interrupt handler.
+//   <i> Default: 16 entries
+#ifndef OS_FIFOSZ
+ #define OS_FIFOSZ      16
+#endif
+
+// </h>
+
+//------------- <<< end of configuration section >>> -----------------------
+
+// Standard library system mutexes
+// ===============================
+//  Define max. number system mutexes that are used to protect 
+//  the arm standard runtime library. For microlib they are not used.
+#ifndef OS_MUTEXCNT
+ #define OS_MUTEXCNT    12
+#endif
+
+/*----------------------------------------------------------------------------
+ *      RTX User configuration part END
+ *---------------------------------------------------------------------------*/
+
+#define OS_TRV          ((uint32_t)(((double)OS_CLOCK*(double)OS_TICK)/1E6)-1)
+
+
+/*----------------------------------------------------------------------------
+ *      OS Idle daemon
+ *---------------------------------------------------------------------------*/
+void os_idle_demon (void) {
+  /* The idle demon is a system thread, running when no other thread is      */
+  /* ready to run.                                                           */
+  
+  /* Sleep: ideally, we should put the chip to sleep.
+     Unfortunately, this usually requires disconnecting the interface chip (debugger).
+     This can be done, but it would break the local file system.
+  */
+  for (;;) {
+      // sleep();
+  }
+}
+
+/*----------------------------------------------------------------------------
+ *      RTX Errors
+ *---------------------------------------------------------------------------*/
+extern void mbed_die(void);
+
+void os_error (uint32_t err_code) {
+    /* This function is called when a runtime error is detected. Parameter     */
+    /* 'err_code' holds the runtime error code (defined in RTX_Conf.h).      */
+    mbed_die();
+}
+
+void sysThreadError(osStatus status) {
+    if (status != osOK) {
+        mbed_die();
+    }
+}
+
+/*----------------------------------------------------------------------------
+ *      RTX Configuration Functions
+ *---------------------------------------------------------------------------*/
+
+#include "RTX_CM_lib.h"
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/cmsis_os.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/cmsis_os.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,774 @@
+/* ----------------------------------------------------------------------  
+ * Copyright (C) 2012 ARM Limited. All rights reserved.  
+ *  
+ * $Date:        5. June 2012
+ * $Revision:    V1.01
+ *  
+ * Project:      CMSIS-RTOS API
+ * Title:        cmsis_os.h RTX header file
+ *  
+ * Version 0.02
+ *    Initial Proposal Phase 
+ * Version 0.03
+ *    osKernelStart added, optional feature: main started as thread
+ *    osSemaphores have standard behavior
+ *    osTimerCreate does not start the timer, added osTimerStart
+ *    osThreadPass is renamed to osThreadYield
+ * Version 1.01
+ *    Support for C++ interface
+ *     - const attribute removed from the osXxxxDef_t typedef's 
+ *     - const attribute added to the osXxxxDef macros
+ *    Added: osTimerDelete, osMutexDelete, osSemaphoreDelete
+ *    Added: osKernelInitialize
+ * -------------------------------------------------------------------- */ 
+
+/**
+\page cmsis_os_h Header File Template: cmsis_os.h
+
+The file \b cmsis_os.h is a template header file for a CMSIS-RTOS compliant Real-Time Operating System (RTOS).
+Each RTOS that is compliant with CMSIS-RTOS shall provide a specific \b cmsis_os.h header file that represents
+its implementation.
+
+The file cmsis_os.h contains:
+ - CMSIS-RTOS API function definitions
+ - struct definitions for parameters and return types
+ - status and priority values used by CMSIS-RTOS API functions
+ - macros for defining threads and other kernel objects
+
+
+<b>Name conventions and header file modifications</b>
+
+All definitions are prefixed with \b os to give an unique name space for CMSIS-RTOS functions.
+Definitions that are prefixed \b os_ are not used in the application code but local to this header file.
+All definitions and functions that belong to a module are grouped and have a common prefix, i.e. \b osThread.
+ 
+Definitions that are marked with <b>CAN BE CHANGED</b> can be adapted towards the needs of the actual CMSIS-RTOS implementation. 
+These definitions can be specific to the underlying RTOS kernel.
+
+Definitions that are marked with <b>MUST REMAIN UNCHANGED</b> cannot be altered. Otherwise the CMSIS-RTOS implementation is no longer
+compliant to the standard. Note that some functions are optional and need not to be provided by every CMSIS-RTOS implementation.
+
+
+<b>Function calls from interrupt service routines</b>
+
+The following CMSIS-RTOS functions can be called from threads and interrupt service routines (ISR):
+  - \ref osSignalSet
+  - \ref osSemaphoreRelease
+  - \ref osPoolAlloc, \ref osPoolCAlloc, \ref osPoolFree
+  - \ref osMessagePut, \ref osMessageGet
+  - \ref osMailAlloc, \ref osMailCAlloc, \ref osMailGet, \ref osMailPut, \ref osMailFree
+
+Functions that cannot be called from an ISR are verifying the interrupt status and return in case that they are called 
+from an ISR context the status code \b osErrorISR. In some implementations this condition might be caught using the HARD FAULT vector.
+
+Some CMSIS-RTOS implementations support CMSIS-RTOS function calls from multiple ISR at the same time.
+If this is impossible, the CMSIS-RTOS rejects calls by nested ISR functions with the status code \b osErrorISRRecursive.
+
+
+<b>Define and reference object definitions</b>
+
+With <b>\#define osObjectsExternal</b> objects are defined as external symbols. This allows to create a consistent header file
+that is used throughout a project as shown below:
+
+<i>Header File</i>
+\code
+#include <cmsis_os.h>                                         // CMSIS RTOS header file
+
+// Thread definition
+extern void thread_sample (void const *argument);             // function prototype
+osThreadDef (thread_sample, osPriorityBelowNormal, 1, 100);
+
+// Pool definition
+osPoolDef(MyPool, 10, long);                      
+\endcode
+
+
+This header file defines all objects when included in a C/C++ source file. When <b>\#define osObjectsExternal</b> is 
+present before the header file, the objects are defined as external symbols. A single consistent header file can therefore be
+used throughout the whole project.
+
+<i>Example</i>
+\code
+#include "osObjects.h"     // Definition of the CMSIS-RTOS objects
+\endcode
+
+\code
+#define osObjectExternal   // Objects will be defined as external symbols
+#include "osObjects.h"     // Reference to the CMSIS-RTOS objects
+\endcode
+
+*/
+ 
+#ifndef _CMSIS_OS_H
+#define _CMSIS_OS_H
+
+/// \note MUST REMAIN UNCHANGED: \b osCMSIS identifies the CMSIS-RTOS API version.
+#define osCMSIS           0x10001      ///< API version (main [31:16] .sub [15:0])
+
+/// \note CAN BE CHANGED: \b osCMSIS_KERNEL identifies the underlying RTOS kernel and version number.
+#define osCMSIS_RTX     ((4<<16)|61)   ///< RTOS identification and version (main [31:16] .sub [15:0])
+
+/// \note MUST REMAIN UNCHANGED: \b osKernelSystemId shall be consistent in every CMSIS-RTOS.
+#define osKernelSystemId "RTX V4.61"   ///< RTOS identification string
+
+
+#define CMSIS_OS_RTX
+
+// The stack space occupied is mainly dependent on the underling C standard library
+#if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_CS_ARM) || defined(TOOLCHAIN_CR_ARM)
+#    define WORDS_STACK_SIZE   512
+#elif defined(TOOLCHAIN_ARM)
+#    define WORDS_STACK_SIZE   512
+#elif defined(TOOLCHAIN_uARM)
+#    define WORDS_STACK_SIZE   128
+#endif
+
+#define DEFAULT_STACK_SIZE         (WORDS_STACK_SIZE*4)
+
+
+/// \note MUST REMAIN UNCHANGED: \b osFeature_xxx shall be consistent in every CMSIS-RTOS.
+#define osFeature_MainThread   1       ///< main thread      1=main can be thread, 0=not available
+#define osFeature_Pool         1       ///< Memory Pools:    1=available, 0=not available
+#define osFeature_MailQ        1       ///< Mail Queues:     1=available, 0=not available
+#define osFeature_MessageQ     1       ///< Message Queues:  1=available, 0=not available
+#define osFeature_Signals      16      ///< maximum number of Signal Flags available per thread
+#define osFeature_Semaphore    65535   ///< maximum count for \ref osSemaphoreCreate function
+#define osFeature_Wait         0       ///< osWait function: 1=available, 0=not available
+
+#if defined (__CC_ARM)
+#define os_InRegs __value_in_regs      // Compiler specific: force struct in registers
+#else
+#define os_InRegs
+#endif
+
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef  __cplusplus
+extern "C"
+{
+#endif
+
+#include "os_tcb.h"
+
+// ==== Enumeration, structures, defines ====
+
+/// Priority used for thread control.
+/// \note MUST REMAIN UNCHANGED: \b osPriority shall be consistent in every CMSIS-RTOS.
+typedef enum  {
+  osPriorityIdle          = -3,          ///< priority: idle (lowest)
+  osPriorityLow           = -2,          ///< priority: low
+  osPriorityBelowNormal   = -1,          ///< priority: below normal
+  osPriorityNormal        =  0,          ///< priority: normal (default)
+  osPriorityAboveNormal   = +1,          ///< priority: above normal
+  osPriorityHigh          = +2,          ///< priority: high 
+  osPriorityRealtime      = +3,          ///< priority: realtime (highest)
+  osPriorityError         =  0x84        ///< system cannot determine priority or thread has illegal priority
+} osPriority;
+
+/// Timeout value.
+/// \note MUST REMAIN UNCHANGED: \b osWaitForever shall be consistent in every CMSIS-RTOS.
+#define osWaitForever     0xFFFFFFFF     ///< wait forever timeout value
+
+/// Status code values returned by CMSIS-RTOS functions.
+/// \note MUST REMAIN UNCHANGED: \b osStatus shall be consistent in every CMSIS-RTOS.
+typedef enum  {
+  osOK                    =     0,       ///< function completed; no error or event occurred.
+  osEventSignal           =  0x08,       ///< function completed; signal event occurred.
+  osEventMessage          =  0x10,       ///< function completed; message event occurred.
+  osEventMail             =  0x20,       ///< function completed; mail event occurred.
+  osEventTimeout          =  0x40,       ///< function completed; timeout occurred.
+  osErrorParameter        =  0x80,       ///< parameter error: a mandatory parameter was missing or specified an incorrect object.
+  osErrorResource         =  0x81,       ///< resource not available: a specified resource was not available.
+  osErrorTimeoutResource  =  0xC1,       ///< resource not available within given time: a specified resource was not available within the timeout period.
+  osErrorISR              =  0x82,       ///< not allowed in ISR context: the function cannot be called from interrupt service routines.
+  osErrorISRRecursive     =  0x83,       ///< function called multiple times from ISR with same object.
+  osErrorPriority         =  0x84,       ///< system cannot determine priority or thread has illegal priority.
+  osErrorNoMemory         =  0x85,       ///< system is out of memory: it was impossible to allocate or reserve memory for the operation.
+  osErrorValue            =  0x86,       ///< value of a parameter is out of range.
+  osErrorOS               =  0xFF,       ///< unspecified RTOS error: run-time error but no other error message fits.
+  os_status_reserved      =  0x7FFFFFFF  ///< prevent from enum down-size compiler optimization.
+} osStatus; 
+
+
+/// Timer type value for the timer definition.
+/// \note MUST REMAIN UNCHANGED: \b os_timer_type shall be consistent in every CMSIS-RTOS.
+typedef enum  {
+  osTimerOnce             =     0,       ///< one-shot timer 
+  osTimerPeriodic         =     1        ///< repeating timer 
+} os_timer_type; 
+
+/// Entry point of a thread.
+/// \note MUST REMAIN UNCHANGED: \b os_pthread shall be consistent in every CMSIS-RTOS.
+typedef void (*os_pthread) (void const *argument); 
+
+/// Entry point of a timer call back function.
+/// \note MUST REMAIN UNCHANGED: \b os_ptimer shall be consistent in every CMSIS-RTOS.
+typedef void (*os_ptimer) (void const *argument); 
+
+// >>> the following data type definitions may shall adapted towards a specific RTOS
+
+/// Thread ID identifies the thread (pointer to a thread control block).
+/// \note CAN BE CHANGED: \b os_thread_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_thread_cb *osThreadId;
+
+/// Timer ID identifies the timer (pointer to a timer control block).
+/// \note CAN BE CHANGED: \b os_timer_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_timer_cb *osTimerId;
+
+/// Mutex ID identifies the mutex (pointer to a mutex control block).
+/// \note CAN BE CHANGED: \b os_mutex_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_mutex_cb *osMutexId;
+
+/// Semaphore ID identifies the semaphore (pointer to a semaphore control block).
+/// \note CAN BE CHANGED: \b os_semaphore_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_semaphore_cb *osSemaphoreId;
+
+/// Pool ID identifies the memory pool (pointer to a memory pool control block).
+/// \note CAN BE CHANGED: \b os_pool_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_pool_cb *osPoolId;
+
+/// Message ID identifies the message queue (pointer to a message queue control block).
+/// \note CAN BE CHANGED: \b os_messageQ_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_messageQ_cb *osMessageQId;
+
+/// Mail ID identifies the mail queue (pointer to a mail queue control block).
+/// \note CAN BE CHANGED: \b os_mailQ_cb is implementation specific in every CMSIS-RTOS.
+typedef struct os_mailQ_cb *osMailQId;
+
+
+/// Thread Definition structure contains startup information of a thread.
+/// \note CAN BE CHANGED: \b os_thread_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_thread_def  {
+  os_pthread               pthread;      ///< start address of thread function
+  osPriority             tpriority;      ///< initial thread priority
+  uint32_t               stacksize;      ///< stack size requirements in bytes
+  unsigned char         *stack_pointer;  ///< pointer to the stack memory block
+  struct OS_TCB          tcb;
+} osThreadDef_t;
+
+/// Timer Definition structure contains timer parameters.
+/// \note CAN BE CHANGED: \b os_timer_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_timer_def  {
+  os_ptimer                 ptimer;    ///< start address of a timer function
+  void                      *timer;    ///< pointer to internal data
+} osTimerDef_t;
+
+/// Mutex Definition structure contains setup information for a mutex.
+/// \note CAN BE CHANGED: \b os_mutex_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_mutex_def  {
+  void                      *mutex;    ///< pointer to internal data
+} osMutexDef_t;
+
+/// Semaphore Definition structure contains setup information for a semaphore.
+/// \note CAN BE CHANGED: \b os_semaphore_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_semaphore_def  {
+  void                  *semaphore;    ///< pointer to internal data
+} osSemaphoreDef_t;
+
+/// Definition structure for memory block allocation.
+/// \note CAN BE CHANGED: \b os_pool_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_pool_def  {
+  uint32_t                 pool_sz;    ///< number of items (elements) in the pool
+  uint32_t                 item_sz;    ///< size of an item 
+  void                       *pool;    ///< pointer to memory for pool
+} osPoolDef_t;
+
+/// Definition structure for message queue.
+/// \note CAN BE CHANGED: \b os_messageQ_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_messageQ_def  {
+  uint32_t                queue_sz;    ///< number of elements in the queue
+  void                       *pool;    ///< memory array for messages
+} osMessageQDef_t;
+
+/// Definition structure for mail queue.
+/// \note CAN BE CHANGED: \b os_mailQ_def is implementation specific in every CMSIS-RTOS.
+typedef struct os_mailQ_def  {
+  uint32_t                queue_sz;    ///< number of elements in the queue
+  uint32_t                 item_sz;    ///< size of an item 
+  void                       *pool;    ///< memory array for mail
+} osMailQDef_t;
+
+/// Event structure contains detailed information about an event. 
+/// \note MUST REMAIN UNCHANGED: \b os_event shall be consistent in every CMSIS-RTOS. 
+///       However the struct may be extended at the end.
+typedef struct  {
+  osStatus                 status;     ///< status code: event or error information
+  union  {
+    uint32_t                    v;     ///< message as 32-bit value 
+    void                       *p;     ///< message or mail as void pointer
+    int32_t               signals;     ///< signal flags 
+  } value;                             ///< event value
+  union  {
+    osMailQId             mail_id;     ///< mail id obtained by \ref osMailCreate 
+    osMessageQId       message_id;     ///< message id obtained by \ref osMessageCreate 
+  } def;                               ///< event definition
+} osEvent;
+
+
+//  ==== Kernel Control Functions ====
+
+/// Initialize the RTOS Kernel for creating objects.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osKernelInitialize shall be consistent in every CMSIS-RTOS. 
+osStatus osKernelInitialize (void);
+
+/// Start the RTOS Kernel.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osKernelStart shall be consistent in every CMSIS-RTOS. 
+osStatus osKernelStart (void);
+
+/// Check if the RTOS kernel is already started.
+/// \note MUST REMAIN UNCHANGED: \b osKernelRunning shall be consistent in every CMSIS-RTOS. 
+/// \return 0 RTOS is not started, 1 RTOS is started.
+int32_t osKernelRunning(void);
+
+
+//  ==== Thread Management ====
+
+/// Create a Thread Definition with function, priority, and stack requirements.
+/// \param         name         name of the thread function.
+/// \param         priority     initial priority of the thread function.
+/// \param         stacksz      stack size (in bytes) requirements for the thread function.
+/// \note CAN BE CHANGED: The parameters to \b osThreadDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osThreadDef(name, priority, stacksz)  \
+extern osThreadDef_t os_thread_def_##name
+#else                            // define the object
+#define osThreadDef(name, priority, stacksz)  \
+unsigned char os_thread_def_stack_##name [stacksz]; \
+osThreadDef_t os_thread_def_##name = \
+{ (name), (priority), (stacksz), (os_thread_def_stack_##name)}
+#endif
+
+/// Access a Thread definition.
+/// \param         name          name of the thread definition object.
+/// \note CAN BE CHANGED: The parameter to \b osThread shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osThread(name)  \
+&os_thread_def_##name
+
+/// Create a thread and add it to Active Threads and set it to state READY.
+/// \param[in]     thread_def    thread definition referenced with \ref osThread.
+/// \param[in]     argument      pointer that is passed to the thread function as start argument.
+/// \return thread ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osThreadCreate shall be consistent in every CMSIS-RTOS.
+osThreadId osThreadCreate (osThreadDef_t *thread_def, void *argument);
+
+/// Return the thread ID of the current running thread.
+/// \return thread ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osThreadGetId shall be consistent in every CMSIS-RTOS.
+osThreadId osThreadGetId (void);
+
+/// Terminate execution of a thread and remove it from Active Threads.
+/// \param[in]     thread_id   thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osThreadTerminate shall be consistent in every CMSIS-RTOS.
+osStatus osThreadTerminate (osThreadId thread_id);
+
+/// Pass control to next thread that is in state \b READY.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osThreadYield shall be consistent in every CMSIS-RTOS.
+osStatus osThreadYield (void);
+
+/// Change priority of an active thread.  
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \param[in]     priority      new priority value for the thread function.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osThreadSetPriority shall be consistent in every CMSIS-RTOS.
+osStatus osThreadSetPriority (osThreadId thread_id, osPriority priority);
+
+/// Get current priority of an active thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \return current priority value of the thread function.
+/// \note MUST REMAIN UNCHANGED: \b osThreadGetPriority shall be consistent in every CMSIS-RTOS.
+osPriority osThreadGetPriority (osThreadId thread_id);
+
+
+//  ==== Generic Wait Functions ====
+
+/// Wait for Timeout (Time Delay).
+/// \param[in]     millisec      time delay value 
+/// \return status code that indicates the execution status of the function.
+osStatus osDelay (uint32_t millisec);
+
+#if (defined (osFeature_Wait)  &&  (osFeature_Wait != 0))     // Generic Wait available
+
+/// Wait for Signal, Message, Mail, or Timeout.
+/// \param[in] millisec          timeout value or 0 in case of no time-out
+/// \return event that contains signal, message, or mail information or error code.
+/// \note MUST REMAIN UNCHANGED: \b osWait shall be consistent in every CMSIS-RTOS.
+os_InRegs osEvent osWait (uint32_t millisec);
+
+#endif  // Generic Wait available
+
+
+//  ==== Timer Management Functions ====
+/// Define a Timer object.
+/// \param         name          name of the timer object.
+/// \param         function      name of the timer call back function.
+/// \note CAN BE CHANGED: The parameter to \b osTimerDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osTimerDef(name, function)  \
+extern osTimerDef_t os_timer_def_##name
+#else                            // define the object
+#define osTimerDef(name, function)  \
+uint32_t os_timer_cb_##name[5]; \
+osTimerDef_t os_timer_def_##name = \
+{ (function), (os_timer_cb_##name) }
+#endif
+
+/// Access a Timer definition.
+/// \param         name          name of the timer object.
+/// \note CAN BE CHANGED: The parameter to \b osTimer shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osTimer(name) \
+&os_timer_def_##name
+
+/// Create a timer.
+/// \param[in]     timer_def     timer object referenced with \ref osTimer.
+/// \param[in]     type          osTimerOnce for one-shot or osTimerPeriodic for periodic behavior.
+/// \param[in]     argument      argument to the timer call back function.
+/// \return timer ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osTimerCreate shall be consistent in every CMSIS-RTOS.
+osTimerId osTimerCreate (osTimerDef_t *timer_def, os_timer_type type, void *argument);
+
+/// Start or restart a timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerCreate.
+/// \param[in]     millisec      time delay value of the timer.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osTimerStart shall be consistent in every CMSIS-RTOS.
+osStatus osTimerStart (osTimerId timer_id, uint32_t millisec);
+
+/// Stop the timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osTimerStop shall be consistent in every CMSIS-RTOS.
+osStatus osTimerStop (osTimerId timer_id);
+
+/// Delete a timer that was created by \ref osTimerCreate.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osTimerDelete shall be consistent in every CMSIS-RTOS.
+osStatus osTimerDelete (osTimerId timer_id);
+
+
+//  ==== Signal Management ====
+
+/// Set the specified Signal Flags of an active thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \param[in]     signals       specifies the signal flags of the thread that should be set.
+/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
+/// \note MUST REMAIN UNCHANGED: \b osSignalSet shall be consistent in every CMSIS-RTOS.
+int32_t osSignalSet (osThreadId thread_id, int32_t signals);
+
+/// Clear the specified Signal Flags of an active thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \param[in]     signals       specifies the signal flags of the thread that shall be cleared.
+/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
+/// \note MUST REMAIN UNCHANGED: \b osSignalClear shall be consistent in every CMSIS-RTOS.
+int32_t osSignalClear (osThreadId thread_id, int32_t signals);
+
+/// Get Signal Flags status of an active thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
+/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
+/// \note MUST REMAIN UNCHANGED: \b osSignalGet shall be consistent in every CMSIS-RTOS.
+int32_t osSignalGet (osThreadId thread_id);
+
+/// Wait for one or more Signal Flags to become signaled for the current \b RUNNING thread.
+/// \param[in]     signals       wait until all specified signal flags set or 0 for any single signal flag.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out.
+/// \return event flag information or error code.
+/// \note MUST REMAIN UNCHANGED: \b osSignalWait shall be consistent in every CMSIS-RTOS.
+os_InRegs osEvent osSignalWait (int32_t signals, uint32_t millisec);
+
+
+//  ==== Mutex Management ====
+
+/// Define a Mutex.
+/// \param         name          name of the mutex object.
+/// \note CAN BE CHANGED: The parameter to \b osMutexDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osMutexDef(name)  \
+extern osMutexDef_t os_mutex_def_##name
+#else                            // define the object
+#define osMutexDef(name)  \
+uint32_t os_mutex_cb_##name[3]; \
+osMutexDef_t os_mutex_def_##name = { (os_mutex_cb_##name) }
+#endif
+
+/// Access a Mutex definition.
+/// \param         name          name of the mutex object.
+/// \note CAN BE CHANGED: The parameter to \b osMutex shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osMutex(name)  \
+&os_mutex_def_##name
+
+/// Create and Initialize a Mutex object.
+/// \param[in]     mutex_def     mutex definition referenced with \ref osMutex.
+/// \return mutex ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osMutexCreate shall be consistent in every CMSIS-RTOS.
+osMutexId osMutexCreate (osMutexDef_t *mutex_def);
+
+/// Wait until a Mutex becomes available.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMutexWait shall be consistent in every CMSIS-RTOS.
+osStatus osMutexWait (osMutexId mutex_id, uint32_t millisec);
+
+/// Release a Mutex that was obtained by \ref osMutexWait.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMutexRelease shall be consistent in every CMSIS-RTOS.
+osStatus osMutexRelease (osMutexId mutex_id);
+
+/// Delete a Mutex that was created by \ref osMutexCreate.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMutexDelete shall be consistent in every CMSIS-RTOS.
+osStatus osMutexDelete (osMutexId mutex_id);
+
+
+//  ==== Semaphore Management Functions ====
+
+#if (defined (osFeature_Semaphore)  &&  (osFeature_Semaphore != 0))     // Semaphore available
+
+/// Define a Semaphore object.
+/// \param         name          name of the semaphore object.
+/// \note CAN BE CHANGED: The parameter to \b osSemaphoreDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osSemaphoreDef(name)  \
+extern osSemaphoreDef_t os_semaphore_def_##name
+#else                            // define the object
+#define osSemaphoreDef(name)  \
+uint32_t os_semaphore_cb_##name[2]; \
+osSemaphoreDef_t os_semaphore_def_##name = { (os_semaphore_cb_##name) }
+#endif
+
+/// Access a Semaphore definition.
+/// \param         name          name of the semaphore object.
+/// \note CAN BE CHANGED: The parameter to \b osSemaphore shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osSemaphore(name)  \
+&os_semaphore_def_##name
+
+/// Create and Initialize a Semaphore object used for managing resources.
+/// \param[in]     semaphore_def semaphore definition referenced with \ref osSemaphore.
+/// \param[in]     count         number of available resources.
+/// \return semaphore ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osSemaphoreCreate shall be consistent in every CMSIS-RTOS.
+osSemaphoreId osSemaphoreCreate (osSemaphoreDef_t *semaphore_def, int32_t count);
+
+/// Wait until a Semaphore token becomes available.
+/// \param[in]     semaphore_id  semaphore object referenced with \ref osSemaphoreCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out.
+/// \return number of available tokens, or -1 in case of incorrect parameters.
+/// \note MUST REMAIN UNCHANGED: \b osSemaphoreWait shall be consistent in every CMSIS-RTOS.
+int32_t osSemaphoreWait (osSemaphoreId semaphore_id, uint32_t millisec);
+
+/// Release a Semaphore token.
+/// \param[in]     semaphore_id  semaphore object referenced with \ref osSemaphoreCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osSemaphoreRelease shall be consistent in every CMSIS-RTOS.
+osStatus osSemaphoreRelease (osSemaphoreId semaphore_id);
+
+/// Delete a Semaphore that was created by \ref osSemaphoreCreate.
+/// \param[in]     semaphore_id  semaphore object referenced with \ref osSemaphoreCreate.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osSemaphoreDelete shall be consistent in every CMSIS-RTOS.
+osStatus osSemaphoreDelete (osSemaphoreId semaphore_id);
+
+#endif     // Semaphore available
+
+ 
+//  ==== Memory Pool Management Functions ====
+
+#if (defined (osFeature_Pool)  &&  (osFeature_Pool != 0))  // Memory Pool Management available
+
+/// \brief Define a Memory Pool.
+/// \param         name          name of the memory pool.
+/// \param         no            maximum number of blocks (objects) in the memory pool.
+/// \param         type          data type of a single block (object).
+/// \note CAN BE CHANGED: The parameter to \b osPoolDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osPoolDef(name, no, type)   \
+extern osPoolDef_t os_pool_def_##name
+#else                            // define the object
+#define osPoolDef(name, no, type)   \
+uint32_t os_pool_m_##name[3+((sizeof(type)+3)/4)*(no)]; \
+osPoolDef_t os_pool_def_##name = \
+{ (no), sizeof(type), (os_pool_m_##name) }
+#endif
+
+/// \brief Access a Memory Pool definition.
+/// \param         name          name of the memory pool
+/// \note CAN BE CHANGED: The parameter to \b osPool shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osPool(name) \
+&os_pool_def_##name
+
+/// Create and Initialize a memory pool.
+/// \param[in]     pool_def      memory pool definition referenced with \ref osPool.
+/// \return memory pool ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osPoolCreate shall be consistent in every CMSIS-RTOS.
+osPoolId osPoolCreate (osPoolDef_t *pool_def);
+
+/// Allocate a memory block from a memory pool.
+/// \param[in]     pool_id       memory pool ID obtain referenced with \ref osPoolCreate.
+/// \return address of the allocated memory block or NULL in case of no memory available.
+/// \note MUST REMAIN UNCHANGED: \b osPoolAlloc shall be consistent in every CMSIS-RTOS.
+void *osPoolAlloc (osPoolId pool_id);
+
+/// Allocate a memory block from a memory pool and set memory block to zero.
+/// \param[in]     pool_id       memory pool ID obtain referenced with \ref osPoolCreate.
+/// \return address of the allocated memory block or NULL in case of no memory available.
+/// \note MUST REMAIN UNCHANGED: \b osPoolCAlloc shall be consistent in every CMSIS-RTOS.
+void *osPoolCAlloc (osPoolId pool_id);
+
+/// Return an allocated memory block back to a specific memory pool.
+/// \param[in]     pool_id       memory pool ID obtain referenced with \ref osPoolCreate.
+/// \param[in]     block         address of the allocated memory block that is returned to the memory pool.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osPoolFree shall be consistent in every CMSIS-RTOS.
+osStatus osPoolFree (osPoolId pool_id, void *block);
+
+#endif   // Memory Pool Management available
+
+
+//  ==== Message Queue Management Functions ====
+
+#if (defined (osFeature_MessageQ)  &&  (osFeature_MessageQ != 0))     // Message Queues available
+
+/// \brief Create a Message Queue Definition.
+/// \param         name          name of the queue.
+/// \param         queue_sz      maximum number of messages in the queue.
+/// \param         type          data type of a single message element (for debugger).
+/// \note CAN BE CHANGED: The parameter to \b osMessageQDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osMessageQDef(name, queue_sz, type)   \
+extern osMessageQDef_t os_messageQ_def_##name
+#else                            // define the object
+#define osMessageQDef(name, queue_sz, type)   \
+uint32_t os_messageQ_q_##name[4+(queue_sz)]; \
+osMessageQDef_t os_messageQ_def_##name = \
+{ (queue_sz), (os_messageQ_q_##name) }
+#endif
+
+/// \brief Access a Message Queue Definition.
+/// \param         name          name of the queue
+/// \note CAN BE CHANGED: The parameter to \b osMessageQ shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osMessageQ(name) \
+&os_messageQ_def_##name
+
+/// Create and Initialize a Message Queue.
+/// \param[in]     queue_def     queue definition referenced with \ref osMessageQ.
+/// \param[in]     thread_id     thread ID (obtained by \ref osThreadCreate or \ref osThreadGetId) or NULL.
+/// \return message queue ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osMessageCreate shall be consistent in every CMSIS-RTOS.
+osMessageQId osMessageCreate (osMessageQDef_t *queue_def, osThreadId thread_id);
+
+/// Put a Message to a Queue.
+/// \param[in]     queue_id      message queue ID obtained with \ref osMessageCreate.
+/// \param[in]     info          message information.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMessagePut shall be consistent in every CMSIS-RTOS.
+osStatus osMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec);
+
+/// Get a Message or Wait for a Message from a Queue.
+/// \param[in]     queue_id      message queue ID obtained with \ref osMessageCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out.
+/// \return event information that includes status code.
+/// \note MUST REMAIN UNCHANGED: \b osMessageGet shall be consistent in every CMSIS-RTOS.
+os_InRegs osEvent osMessageGet (osMessageQId queue_id, uint32_t millisec);
+
+#endif     // Message Queues available
+
+
+//  ==== Mail Queue Management Functions ====
+
+#if (defined (osFeature_MailQ)  &&  (osFeature_MailQ != 0))     // Mail Queues available
+
+/// \brief Create a Mail Queue Definition.
+/// \param         name          name of the queue
+/// \param         queue_sz      maximum number of messages in queue
+/// \param         type          data type of a single message element
+/// \note CAN BE CHANGED: The parameter to \b osMailQDef shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#if defined (osObjectsExternal)  // object is external
+#define osMailQDef(name, queue_sz, type) \
+extern osMailQDef_t os_mailQ_def_##name
+#else                            // define the object
+#define osMailQDef(name, queue_sz, type) \
+uint32_t os_mailQ_q_##name[4+(queue_sz)]; \
+uint32_t os_mailQ_m_##name[3+((sizeof(type)+3)/4)*(queue_sz)]; \
+void *   os_mailQ_p_##name[2] = { (os_mailQ_q_##name), os_mailQ_m_##name }; \
+osMailQDef_t os_mailQ_def_##name =  \
+{ (queue_sz), sizeof(type), (os_mailQ_p_##name) }
+#endif
+     
+/// \brief Access a Mail Queue Definition.
+/// \param         name          name of the queue
+/// \note CAN BE CHANGED: The parameter to \b osMailQ shall be consistent but the 
+///       macro body is implementation specific in every CMSIS-RTOS.
+#define osMailQ(name)  \
+&os_mailQ_def_##name
+
+/// Create and Initialize mail queue.
+/// \param[in]     queue_def     reference to the mail queue definition obtain with \ref osMailQ
+/// \param[in]     thread_id     thread ID (obtained by \ref osThreadCreate or \ref osThreadGetId) or NULL.
+/// \return mail queue ID for reference by other functions or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osMailCreate shall be consistent in every CMSIS-RTOS.
+osMailQId osMailCreate (osMailQDef_t *queue_def, osThreadId thread_id);
+
+/// Allocate a memory block from a mail.
+/// \param[in]     queue_id      mail queue ID obtained with \ref osMailCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out
+/// \return pointer to memory block that can be filled with mail or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osMailAlloc shall be consistent in every CMSIS-RTOS.
+void *osMailAlloc (osMailQId queue_id, uint32_t millisec);
+
+/// Allocate a memory block from a mail and set memory block to zero.
+/// \param[in]     queue_id      mail queue ID obtained with \ref osMailCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out
+/// \return pointer to memory block that can be filled with mail or NULL in case of error.
+/// \note MUST REMAIN UNCHANGED: \b osMailCAlloc shall be consistent in every CMSIS-RTOS.
+void *osMailCAlloc (osMailQId queue_id, uint32_t millisec);
+
+/// Put a mail to a queue.
+/// \param[in]     queue_id      mail queue ID obtained with \ref osMailCreate.
+/// \param[in]     mail          memory block previously allocated with \ref osMailAlloc or \ref osMailCAlloc.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMailPut shall be consistent in every CMSIS-RTOS.
+osStatus osMailPut (osMailQId queue_id, void *mail);
+
+/// Get a mail from a queue.
+/// \param[in]     queue_id      mail queue ID obtained with \ref osMailCreate.
+/// \param[in]     millisec      timeout value or 0 in case of no time-out
+/// \return event that contains mail information or error code.
+/// \note MUST REMAIN UNCHANGED: \b osMailGet shall be consistent in every CMSIS-RTOS.
+os_InRegs osEvent osMailGet (osMailQId queue_id, uint32_t millisec);
+
+/// Free a memory block from a mail.
+/// \param[in]     queue_id      mail queue ID obtained with \ref osMailCreate.
+/// \param[in]     mail          pointer to the memory block that was obtained with \ref osMailGet.
+/// \return status code that indicates the execution status of the function.
+/// \note MUST REMAIN UNCHANGED: \b osMailFree shall be consistent in every CMSIS-RTOS.
+osStatus osMailFree (osMailQId queue_id, void *mail);
+                            
+#endif  // Mail Queues available
+
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif  // _CMSIS_OS_H
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/os_tcb.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/os_tcb.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,50 @@
+#ifndef OS_TCB_H
+#define OS_TCB_H
+
+/* Types */
+typedef char               S8;
+typedef unsigned char      U8;
+typedef short              S16;
+typedef unsigned short     U16;
+typedef int                S32;
+typedef unsigned int       U32;
+typedef long long          S64;
+typedef unsigned long long U64;
+typedef unsigned char      BIT;
+typedef unsigned int       BOOL;
+typedef void               (*FUNCP)(void);
+
+typedef struct OS_TCB {
+  /* General part: identical for all implementations.                        */
+  U8     cb_type;                 /* Control Block Type                      */
+  U8     state;                   /* Task state                              */
+  U8     prio;                    /* Execution priority                      */
+  U8     task_id;                 /* Task ID value for optimized TCB access  */
+  struct OS_TCB *p_lnk;           /* Link pointer for ready/sem. wait list   */
+  struct OS_TCB *p_rlnk;          /* Link pointer for sem./mbx lst backwards */
+  struct OS_TCB *p_dlnk;          /* Link pointer for delay list             */
+  struct OS_TCB *p_blnk;          /* Link pointer for delay list backwards   */
+  U16    delta_time;              /* Time until time out                     */
+  U16    interval_time;           /* Time interval for periodic waits        */
+  U16    events;                  /* Event flags                             */
+  U16    waits;                   /* Wait flags                              */
+  void   **msg;                   /* Direct message passing when task waits  */
+
+  /* Hardware dependant part: specific for CM processor                      */
+  U8     stack_frame;             /* Stack frame: 0=Basic, 1=Extended        */
+  U8     reserved;
+  U16    priv_stack;              /* Private stack size in bytes             */
+  U32    tsk_stack;               /* Current task Stack pointer (R13)        */
+  U32    *stack;                  /* Pointer to Task Stack memory block      */
+  
+  /* Library dependant part                                                   */
+#if defined (__CC_ARM) && !defined (__MICROLIB)
+ /* A memory space for arm standard library. */
+  U32 std_libspace[96/4];
+#endif
+  
+  /* Task entry point used for uVision debugger                              */
+  FUNCP  ptask;                   /* Task entry address                      */
+} *P_TCB;
+
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_CMSIS.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_CMSIS.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,1920 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    rt_CMSIS.c
+ *      Purpose: CMSIS RTOS API
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#define __CMSIS_GENERIC
+
+#if defined (__CORTEX_M4) || defined (__CORTEX_M4F)
+  #include "core_cm4.h"
+#elif defined (__CORTEX_M3)
+  #include "core_cm3.h"
+#elif defined (__CORTEX_M0)
+  #include "core_cm0.h"
+#elif defined (__CORTEX_M0PLUS)
+  #include "core_cm0plus.h"
+#else
+  #error "Missing __CORTEX_Mx definition"
+#endif
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_Task.h"
+#include "rt_Event.h"
+#include "rt_List.h"
+#include "rt_Time.h"
+#include "rt_Mutex.h"
+#include "rt_Semaphore.h"
+#include "rt_Mailbox.h"
+#include "rt_MemBox.h"
+#include "rt_HAL_CM.h"
+
+#define os_thread_cb OS_TCB
+
+#include "cmsis_os.h"
+
+#if (osFeature_Signals != 16)
+#error Invalid "osFeature_Signals" value!
+#endif
+#if (osFeature_Semaphore > 65535)
+#error Invalid "osFeature_Semaphore" value!
+#endif
+#if (osFeature_Wait != 0)
+#error osWait not supported!
+#endif
+
+
+// ==== Enumeration, structures, defines ====
+
+// Service Calls defines
+
+#if defined (__CC_ARM)          /* ARM Compiler */
+
+#define __NO_RETURN __declspec(noreturn)
+
+#define osEvent_type       osEvent
+#define osEvent_ret_status ret
+#define osEvent_ret_value  ret
+#define osEvent_ret_msg    ret
+#define osEvent_ret_mail   ret
+
+#define osCallback_type    osCallback
+#define osCallback_ret     ret
+
+#define SVC_0_1(f,t,...)                                                       \
+__svc_indirect(0) t  _##f (t(*)());                                            \
+                  t     f (void);                                              \
+__attribute__((always_inline))                                                 \
+static __inline   t __##f (void) {                                             \
+  return _##f(f);                                                              \
+}
+
+#define SVC_1_1(f,t,t1,...)                                                    \
+__svc_indirect(0) t  _##f (t(*)(t1),t1);                                       \
+                  t     f (t1 a1);                                             \
+__attribute__((always_inline))                                                 \
+static __inline   t __##f (t1 a1) {                                            \
+  return _##f(f,a1);                                                           \
+}
+
+#define SVC_2_1(f,t,t1,t2,...)                                                 \
+__svc_indirect(0) t  _##f (t(*)(t1,t2),t1,t2);                                 \
+                  t     f (t1 a1, t2 a2);                                      \
+__attribute__((always_inline))                                                 \
+static __inline   t __##f (t1 a1, t2 a2) {                                     \
+  return _##f(f,a1,a2);                                                        \
+}
+
+#define SVC_3_1(f,t,t1,t2,t3,...)                                              \
+__svc_indirect(0) t  _##f (t(*)(t1,t2,t3),t1,t2,t3);                           \
+                  t     f (t1 a1, t2 a2, t3 a3);                               \
+__attribute__((always_inline))                                                 \
+static __inline   t __##f (t1 a1, t2 a2, t3 a3) {                              \
+  return _##f(f,a1,a2,a3);                                                     \
+}
+
+#define SVC_4_1(f,t,t1,t2,t3,t4,...)                                           \
+__svc_indirect(0) t  _##f (t(*)(t1,t2,t3,t4),t1,t2,t3,t4);                     \
+                  t     f (t1 a1, t2 a2, t3 a3, t4 a4);                        \
+__attribute__((always_inline))                                                 \
+static __inline   t __##f (t1 a1, t2 a2, t3 a3, t4 a4) {                       \
+  return _##f(f,a1,a2,a3,a4);                                                  \
+}
+
+#define SVC_1_2 SVC_1_1 
+#define SVC_1_3 SVC_1_1 
+#define SVC_2_3 SVC_2_1 
+
+#elif defined (__GNUC__)        /* GNU Compiler */
+
+#define __NO_RETURN __attribute__((noreturn))
+
+typedef uint32_t __attribute__((vector_size(8)))  ret64;
+typedef uint32_t __attribute__((vector_size(16))) ret128;
+
+#define RET_pointer    __r0
+#define RET_int32_t    __r0
+#define RET_osStatus   __r0
+#define RET_osPriority __r0
+#define RET_osEvent    {(osStatus)__r0, {(uint32_t)__r1}, {(void *)__r2}}
+#define RET_osCallback {(void *)__r0, (void *)__r1}
+
+#define osEvent_type        ret128
+#define osEvent_ret_status (ret128){ret.status}
+#define osEvent_ret_value  (ret128){ret.status, ret.value.v}
+#define osEvent_ret_msg    (ret128){ret.status, ret.value.v, (uint32_t)ret.def.message_id}
+#define osEvent_ret_mail   (ret128){ret.status, ret.value.v, (uint32_t)ret.def.mail_id}
+
+#define osCallback_type     ret64
+#define osCallback_ret     (ret64) {(uint32_t)ret.fp, (uint32_t)ret.arg}
+
+#define SVC_ArgN(n) \
+  register int __r##n __asm("r"#n);
+
+#define SVC_ArgR(n,t,a) \
+  register t   __r##n __asm("r"#n) = a;
+
+#define SVC_Arg0()                                                             \
+  SVC_ArgN(0)                                                                  \
+  SVC_ArgN(1)                                                                  \
+  SVC_ArgN(2)                                                                  \
+  SVC_ArgN(3)
+
+#define SVC_Arg1(t1)                                                           \
+  SVC_ArgR(0,t1,a1)                                                            \
+  SVC_ArgN(1)                                                                  \
+  SVC_ArgN(2)                                                                  \
+  SVC_ArgN(3)
+
+#define SVC_Arg2(t1,t2)                                                        \
+  SVC_ArgR(0,t1,a1)                                                            \
+  SVC_ArgR(1,t2,a2)                                                            \
+  SVC_ArgN(2)                                                                  \
+  SVC_ArgN(3)
+
+#define SVC_Arg3(t1,t2,t3)                                                     \
+  SVC_ArgR(0,t1,a1)                                                            \
+  SVC_ArgR(1,t2,a2)                                                            \
+  SVC_ArgR(2,t3,a3)                                                            \
+  SVC_ArgN(3)
+
+#define SVC_Arg4(t1,t2,t3,t4)                                                  \
+  SVC_ArgR(0,t1,a1)                                                            \
+  SVC_ArgR(1,t2,a2)                                                            \
+  SVC_ArgR(2,t3,a3)                                                            \
+  SVC_ArgR(3,t4,a4)
+
+#if (defined (__CORTEX_M0)) || defined (__CORTEX_M0PLUS)
+#define SVC_Call(f)                                                            \
+  __asm volatile                                                                 \
+  (                                                                            \
+    "ldr r7,="#f"\n\t"                                                         \
+    "mov r12,r7\n\t"                                                           \
+    "svc 0"                                                                    \
+    :               "=r" (__r0), "=r" (__r1), "=r" (__r2), "=r" (__r3)         \
+    :                "r" (__r0),  "r" (__r1),  "r" (__r2),  "r" (__r3)         \
+    : "r7", "r12", "lr", "cc"                                                  \
+  );
+#else
+#define SVC_Call(f)                                                            \
+  __asm volatile                                                                 \
+  (                                                                            \
+    "ldr r12,="#f"\n\t"                                                        \
+    "svc 0"                                                                    \
+    :               "=r" (__r0), "=r" (__r1), "=r" (__r2), "=r" (__r3)         \
+    :                "r" (__r0),  "r" (__r1),  "r" (__r2),  "r" (__r3)         \
+    : "r12", "lr", "cc"                                                        \
+  );
+#endif
+
+#define SVC_0_1(f,t,rv)                                                        \
+__attribute__((always_inline))                                                 \
+static inline  t __##f (void) {                                                \
+  SVC_Arg0();                                                                  \
+  SVC_Call(f);                                                                 \
+  return (t) rv;                                                               \
+}
+
+#define SVC_1_1(f,t,t1,rv)                                                     \
+__attribute__((always_inline))                                                 \
+static inline  t __##f (t1 a1) {                                               \
+  SVC_Arg1(t1);                                                                \
+  SVC_Call(f);                                                                 \
+  return (t) rv;                                                               \
+}
+
+#define SVC_2_1(f,t,t1,t2,rv)                                                  \
+__attribute__((always_inline))                                                 \
+static inline  t __##f (t1 a1, t2 a2) {                                        \
+  SVC_Arg2(t1,t2);                                                             \
+  SVC_Call(f);                                                                 \
+  return (t) rv;                                                               \
+}
+
+#define SVC_3_1(f,t,t1,t2,t3,rv)                                               \
+__attribute__((always_inline))                                                 \
+static inline  t __##f (t1 a1, t2 a2, t3 a3) {                                 \
+  SVC_Arg3(t1,t2,t3);                                                          \
+  SVC_Call(f);                                                                 \
+  return (t) rv;                                                               \
+}
+
+#define SVC_4_1(f,t,t1,t2,t3,t4,rv)                                            \
+__attribute__((always_inline))                                                 \
+static inline  t __##f (t1 a1, t2 a2, t3 a3, t4 a4) {                          \
+  SVC_Arg4(t1,t2,t3,t4);                                                       \
+  SVC_Call(f);                                                                 \
+  return (t) rv;                                                               \
+}
+
+#define SVC_1_2 SVC_1_1 
+#define SVC_1_3 SVC_1_1 
+#define SVC_2_3 SVC_2_1 
+
+#elif defined (__ICCARM__)      /* IAR Compiler */
+
+#define __NO_RETURN __noreturn
+
+#define RET_osEvent        "=r"(ret.status), "=r"(ret.value), "=r"(ret.def)
+#define RET_osCallback     "=r"(ret.fp), "=r"(ret.arg)
+
+#define osEvent_type       osEvent
+#define osEvent_ret_status ret
+#define osEvent_ret_value  ret
+#define osEvent_ret_msg    ret
+#define osEvent_ret_mail   ret
+
+#define osCallback_type    uint64_t
+#define osCallback_ret     ((uint64_t)ret.fp | ((uint64_t)ret.arg)<<32)
+
+#define SVC_Setup(f)                                                           \
+  __asm(                                                                         \
+    "mov r12,%0\n"                                                             \
+    :: "r"(&f): "r12"                                                          \
+  );
+
+#define SVC_Ret3()                                                             \
+  __asm(                                                                         \
+    "ldr r0,[sp,#0]\n"                                                         \
+    "ldr r1,[sp,#4]\n"                                                         \
+    "ldr r2,[sp,#8]\n"                                                         \
+  );
+
+#define SVC_0_1(f,t,...)                                                       \
+t f (void);                                                                    \
+_Pragma("swi_number=0") __swi t _##f (void);                                   \
+static inline t __##f (void) {                                                 \
+  SVC_Setup(f);                                                                \
+  return _##f();                                                               \
+}
+
+#define SVC_1_1(f,t,t1,...)                                                    \
+t f (t1 a1);                                                                   \
+_Pragma("swi_number=0") __swi t _##f (t1 a1);                                  \
+static inline t __##f (t1 a1) {                                                \
+  SVC_Setup(f);                                                                \
+  return _##f(a1);                                                             \
+}
+
+#define SVC_2_1(f,t,t1,t2,...)                                                 \
+t f (t1 a1, t2 a2);                                                            \
+_Pragma("swi_number=0") __swi t _##f (t1 a1, t2 a2);                           \
+static inline t __##f (t1 a1, t2 a2) {                                         \
+  SVC_Setup(f);                                                                \
+  return _##f(a1,a2);                                                          \
+}
+
+#define SVC_3_1(f,t,t1,t2,t3,...)                                              \
+t f (t1 a1, t2 a2, t3 a3);                                                     \
+_Pragma("swi_number=0") __swi t _##f (t1 a1, t2 a2, t3 a3);                    \
+static inline t __##f (t1 a1, t2 a2, t3 a3) {                                  \
+  SVC_Setup(f);                                                                \
+  return _##f(a1,a2,a3);                                                       \
+}
+
+#define SVC_4_1(f,t,t1,t2,t3,t4,...)                                           \
+t f (t1 a1, t2 a2, t3 a3, t4 a4);                                              \
+_Pragma("swi_number=0") __swi t _##f (t1 a1, t2 a2, t3 a3, t4 a4);             \
+static inline t __##f (t1 a1, t2 a2, t3 a3, t4 a4) {                           \
+  SVC_Setup(f);                                                                \
+  return _##f(a1,a2,a3,a4);                                                    \
+}
+
+#define SVC_1_2(f,t,t1,rr)                                                     \
+uint64_t f (t1 a1);                                                            \
+_Pragma("swi_number=0") __swi uint64_t _##f (t1 a1);                           \
+static inline t __##f (t1 a1) {                                                \
+  t ret;                                                                       \
+  SVC_Setup(f);                                                                \
+  _##f(a1);                                                                    \
+  __asm("" : rr : :);                                                            \
+  return ret;                                                                  \
+}
+
+#define SVC_1_3(f,t,t1,rr)                                                     \
+t f (t1 a1);                                                                   \
+void f##_ (t1 a1) {                                                            \
+  f(a1);                                                                       \
+  SVC_Ret3();                                                                  \
+}                                                                              \
+_Pragma("swi_number=0") __swi void _##f (t1 a1);                               \
+static inline t __##f (t1 a1) {                                                \
+  t ret;                                                                       \
+  SVC_Setup(f##_);                                                             \
+  _##f(a1);                                                                    \
+  __asm("" : rr : :);                                                            \
+  return ret;                                                                  \
+}
+
+#define SVC_2_3(f,t,t1,t2,rr)                                                  \
+t f (t1 a1, t2 a2);                                                            \
+void f##_ (t1 a1, t2 a2) {                                                     \
+  f(a1,a2);                                                                    \
+  SVC_Ret3();                                                                  \
+}                                                                              \
+_Pragma("swi_number=0") __swi void _##f (t1 a1, t2 a2);                        \
+static inline t __##f (t1 a1, t2 a2) {                                         \
+  t ret;                                                                       \
+  SVC_Setup(f##_);                                                             \
+  _##f(a1,a2);                                                                 \
+  __asm("" : rr : :);                                                            \
+  return ret;                                                                  \
+}
+
+#endif
+
+
+// Callback structure
+typedef struct {
+  void *fp;             // Function pointer
+  void *arg;            // Function argument
+} osCallback;
+
+
+// OS Section definitions
+#ifdef OS_SECTIONS_LINK_INFO
+extern const uint32_t  os_section_id$$Base;
+extern const uint32_t  os_section_id$$Limit;
+#endif
+
+// OS Timers external resources
+extern osThreadDef_t   os_thread_def_osTimerThread;
+extern osThreadId      osThreadId_osTimerThread;
+extern osMessageQDef_t os_messageQ_def_osTimerMessageQ;
+extern osMessageQId    osMessageQId_osTimerMessageQ;
+
+
+// ==== Helper Functions ====
+
+/// Convert timeout in millisec to system ticks
+static uint32_t rt_ms2tick (uint32_t millisec) {
+  uint32_t tick;
+
+  if (millisec == osWaitForever) return 0xFFFF; // Indefinite timeout
+  if (millisec > 4000000) return 0xFFFE;        // Max ticks supported
+
+  tick = ((1000 * millisec) + os_clockrate - 1)  / os_clockrate;
+  if (tick > 0xFFFE) return 0xFFFE;
+  
+  return tick;
+}
+
+/// Convert Thread ID to TCB pointer
+static P_TCB rt_tid2ptcb (osThreadId thread_id) {
+  P_TCB ptcb;
+
+  if (thread_id == NULL) return NULL;
+
+  if ((uint32_t)thread_id & 3) return NULL;
+
+#ifdef OS_SECTIONS_LINK_INFO
+  if ((os_section_id$$Base != 0) && (os_section_id$$Limit != 0)) {
+    if (thread_id  < (osThreadId)os_section_id$$Base)  return NULL;
+    if (thread_id >= (osThreadId)os_section_id$$Limit) return NULL;
+  }
+#endif
+
+  ptcb = thread_id;
+
+  if (ptcb->cb_type != TCB) return NULL;
+
+  return ptcb;
+}
+
+/// Convert ID pointer to Object pointer
+static void *rt_id2obj (void *id) {
+
+  if ((uint32_t)id & 3) return NULL;
+
+#ifdef OS_SECTIONS_LINK_INFO
+  if ((os_section_id$$Base != 0) && (os_section_id$$Limit != 0)) {
+    if (id  < (void *)os_section_id$$Base)  return NULL;
+    if (id >= (void *)os_section_id$$Limit) return NULL;
+  }
+#endif
+
+  return id;
+}
+
+
+// ==== Kernel Control ====
+
+uint8_t os_initialized;                         // Kernel Initialized flag
+uint8_t os_running;                             // Kernel Running flag
+
+// Kernel Control Service Calls declarations
+SVC_0_1(svcKernelInitialize, osStatus, RET_osStatus)
+SVC_0_1(svcKernelStart,      osStatus, RET_osStatus)
+SVC_0_1(svcKernelRunning,    int32_t,  RET_int32_t)
+
+extern void  sysThreadError   (osStatus status);
+osThreadId   svcThreadCreate  (osThreadDef_t *thread_def, void *argument);
+osMessageQId svcMessageCreate (osMessageQDef_t *queue_def, osThreadId thread_id);
+
+// Kernel Control Service Calls
+
+/// Initialize the RTOS Kernel for creating objects
+osStatus svcKernelInitialize (void) {
+  if (os_initialized) return osOK;
+
+  rt_sys_init();                                // RTX System Initialization
+  os_tsk.run->prio = 255;                       // Highest priority
+
+  sysThreadError(osOK);
+
+  os_initialized = 1;
+
+  return osOK;
+}
+
+/// Start the RTOS Kernel
+osStatus svcKernelStart (void) {
+
+  if (os_running) return osOK;
+
+  // Create OS Timers resources (Message Queue & Thread)
+  osMessageQId_osTimerMessageQ = svcMessageCreate (&os_messageQ_def_osTimerMessageQ, NULL);
+  osThreadId_osTimerThread = svcThreadCreate(&os_thread_def_osTimerThread, NULL);
+
+  rt_tsk_prio(0, 0);                            // Lowest priority
+  __set_PSP(os_tsk.run->tsk_stack + 8*4);       // New context
+  os_tsk.run = NULL;                            // Force context switch
+
+  rt_sys_start();
+
+  os_running = 1;
+
+  return osOK;
+}
+
+/// Check if the RTOS kernel is already started
+int32_t svcKernelRunning(void) {
+  return os_running;
+}
+
+// Kernel Control Public API
+
+/// Initialize the RTOS Kernel for creating objects
+osStatus osKernelInitialize (void) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  if ((__get_CONTROL() & 1) == 0) {             // Privileged mode
+    return   svcKernelInitialize();
+  } else {
+    return __svcKernelInitialize();
+  }
+}
+
+/// Start the RTOS Kernel
+osStatus osKernelStart (void) {
+  uint32_t stack[8];
+  
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  switch (__get_CONTROL() & 0x03) {
+    case 0x00:                                  // Privileged Thread mode & MSP
+      __set_PSP((uint32_t)(stack + 8));         // Initial PSP
+      if (os_flags & 1) {                       
+        __set_CONTROL(0x02);                    // Set Privileged Thread mode & PSP
+      } else {
+        __set_CONTROL(0x03);                    // Set Unprivileged Thread mode & PSP
+      }
+      __DSB();
+      __ISB();
+      break;
+    case 0x01:                                  // Unprivileged Thread mode & MSP
+      return osErrorOS;
+    case 0x02:                                  // Privileged Thread mode & PSP
+      if ((os_flags & 1) == 0) {                // Unprivileged Thread mode requested
+        __set_CONTROL(0x03);                    // Set Unprivileged Thread mode & PSP
+        __DSB();
+        __ISB();
+      }
+      break;
+    case 0x03:                                  // Unprivileged Thread mode & PSP
+      if  (os_flags & 1) return osErrorOS;      // Privileged Thread mode requested
+      break;
+  }
+  return __svcKernelStart();
+}
+
+/// Check if the RTOS kernel is already started
+int32_t osKernelRunning(void) {
+  if ((__get_IPSR() != 0) || ((__get_CONTROL() & 1) == 0)) {
+    // in ISR or Privileged
+    return os_running;
+  } else {
+    return __svcKernelRunning();
+  }
+}
+
+
+// ==== Thread Management ====
+
+__NO_RETURN void osThreadExit (void);
+
+// Thread Service Calls declarations
+SVC_2_1(svcThreadCreate,      osThreadId, osThreadDef_t *, void *,     RET_pointer)
+SVC_0_1(svcThreadGetId,       osThreadId,                              RET_pointer)
+SVC_1_1(svcThreadTerminate,   osStatus,   osThreadId,                  RET_osStatus)
+SVC_0_1(svcThreadYield,       osStatus,                                RET_osStatus)
+SVC_2_1(svcThreadSetPriority, osStatus,   osThreadId,      osPriority, RET_osStatus)
+SVC_1_1(svcThreadGetPriority, osPriority, osThreadId,                  RET_osPriority)
+
+// Thread Service Calls
+extern OS_TID rt_get_TID (void);
+extern void   rt_init_context (P_TCB p_TCB, U8 priority, FUNCP task_body);
+
+/// Create a thread and add it to Active Threads and set it to state READY
+osThreadId svcThreadCreate (osThreadDef_t *thread_def, void *argument) {
+  P_TCB  ptcb;
+  
+  if ((thread_def == NULL) ||
+      (thread_def->pthread == NULL) ||
+      (thread_def->tpriority < osPriorityIdle) ||
+      (thread_def->tpriority > osPriorityRealtime) ||
+      (thread_def->stacksize == 0) ||
+      (thread_def->stack_pointer == NULL) ) {
+    sysThreadError(osErrorParameter); 
+    return NULL; 
+  }
+  
+  U8 priority = thread_def->tpriority - osPriorityIdle + 1;
+  P_TCB task_context = &thread_def->tcb;
+  
+  /* If "size != 0" use a private user provided stack. */
+  task_context->stack      = (U32*)thread_def->stack_pointer;
+  task_context->priv_stack = thread_def->stacksize;
+  /* Pass parameter 'argv' to 'rt_init_context' */
+  task_context->msg = argument;
+  /* For 'size == 0' system allocates the user stack from the memory pool. */
+  rt_init_context (task_context, priority, (FUNCP)thread_def->pthread);
+
+  /* Find a free entry in 'os_active_TCB' table. */
+  OS_TID tsk = rt_get_TID ();
+  os_active_TCB[tsk-1] = task_context;
+  task_context->task_id = tsk;
+  DBG_TASK_NOTIFY(task_context, __TRUE);
+  rt_dispatch (task_context);
+  
+  ptcb = (P_TCB)os_active_TCB[tsk - 1];         // TCB pointer
+
+  *((uint32_t *)ptcb->tsk_stack + 13) = (uint32_t)osThreadExit;
+
+  return ptcb;
+}
+
+/// Return the thread ID of the current running thread
+osThreadId svcThreadGetId (void) {
+  OS_TID tsk;
+
+  tsk = rt_tsk_self();
+  if (tsk == 0) return NULL;
+  return (P_TCB)os_active_TCB[tsk - 1];
+}
+
+/// Terminate execution of a thread and remove it from ActiveThreads
+osStatus svcThreadTerminate (osThreadId thread_id) {
+  OS_RESULT res;
+  P_TCB     ptcb;
+  
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return osErrorParameter;
+  
+  res = rt_tsk_delete(ptcb->task_id);           // Delete task
+
+  if (res == OS_R_NOK) return osErrorResource;  // Delete task failed
+  
+  return osOK;
+}
+
+/// Pass control to next thread that is in state READY
+osStatus svcThreadYield (void) {
+  rt_tsk_pass();                                // Pass control to next task
+  return osOK;
+}
+
+/// Change priority of an active thread
+osStatus svcThreadSetPriority (osThreadId thread_id, osPriority priority) {
+  OS_RESULT res;
+  P_TCB     ptcb;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return osErrorParameter;
+
+  if ((priority < osPriorityIdle) || (priority > osPriorityRealtime)) {
+    return osErrorValue;
+  }
+
+  res = rt_tsk_prio(                            // Change task priority
+    ptcb->task_id,                              // Task ID
+    priority - osPriorityIdle + 1               // New task priority
+  );
+
+  if (res == OS_R_NOK) return osErrorResource;  // Change task priority failed
+
+  return osOK;
+}
+
+/// Get current priority of an active thread
+osPriority svcThreadGetPriority (osThreadId thread_id) {
+  P_TCB ptcb;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return osPriorityError;
+
+  return (osPriority)(ptcb->prio - 1 + osPriorityIdle); 
+}
+
+
+// Thread Public API
+
+/// Create a thread and add it to Active Threads and set it to state READY
+osThreadId osThreadCreate (osThreadDef_t *thread_def, void *argument) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcThreadCreate(thread_def, argument);
+  } else {
+    return __svcThreadCreate(thread_def, argument);
+  }
+}
+
+/// Return the thread ID of the current running thread
+osThreadId osThreadGetId (void) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  return __svcThreadGetId();
+}
+
+/// Terminate execution of a thread and remove it from ActiveThreads
+osStatus osThreadTerminate (osThreadId thread_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcThreadTerminate(thread_id);
+}
+
+/// Pass control to next thread that is in state READY
+osStatus osThreadYield (void) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcThreadYield();
+}
+
+/// Change priority of an active thread
+osStatus osThreadSetPriority (osThreadId thread_id, osPriority priority) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcThreadSetPriority(thread_id, priority);
+}
+
+/// Get current priority of an active thread
+osPriority osThreadGetPriority (osThreadId thread_id) {
+  if (__get_IPSR() != 0) return osPriorityError;// Not allowed in ISR
+  return __svcThreadGetPriority(thread_id);
+}
+
+/// INTERNAL - Not Public
+/// Auto Terminate Thread on exit (used implicitly when thread exists)
+__NO_RETURN void osThreadExit (void) { 
+  __svcThreadTerminate(__svcThreadGetId()); 
+  for (;;);                                     // Should never come here
+}
+
+
+// ==== Generic Wait Functions ====
+
+// Generic Wait Service Calls declarations
+SVC_1_1(svcDelay,           osStatus, uint32_t, RET_osStatus)
+#if osFeature_Wait != 0
+SVC_1_3(svcWait,  os_InRegs osEvent,  uint32_t, RET_osEvent)
+#endif
+
+// Generic Wait Service Calls
+
+/// Wait for Timeout (Time Delay)
+osStatus svcDelay (uint32_t millisec) {
+  if (millisec == 0) return osOK;
+  rt_dly_wait(rt_ms2tick(millisec));
+  return osEventTimeout;
+}
+
+/// Wait for Signal, Message, Mail, or Timeout
+#if osFeature_Wait != 0
+os_InRegs osEvent_type svcWait (uint32_t millisec) {
+  osEvent ret;
+
+  if (millisec == 0) {
+    ret.status = osOK;
+    return osEvent_ret_status;
+  }
+
+  /* To Do: osEventSignal, osEventMessage, osEventMail */
+  rt_dly_wait(rt_ms2tick(millisec));
+  ret.status = osEventTimeout;
+
+  return osEvent_ret_status;
+}
+#endif
+
+
+// Generic Wait API
+
+/// Wait for Timeout (Time Delay)
+osStatus osDelay (uint32_t millisec) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcDelay(millisec);
+}
+
+/// Wait for Signal, Message, Mail, or Timeout
+os_InRegs osEvent osWait (uint32_t millisec) {
+  osEvent ret;
+
+#if osFeature_Wait == 0
+  ret.status = osErrorOS;
+  return ret;
+#else
+  if (__get_IPSR() != 0) {                      // Not allowed in ISR
+    ret.status = osErrorISR;
+    return ret;
+  }
+  return __svcWait(millisec);
+#endif
+}
+
+
+// ==== Timer Management ====
+
+// Timer definitions
+#define osTimerInvalid  0
+#define osTimerStopped  1
+#define osTimerRunning  2
+
+// Timer structures 
+
+typedef struct os_timer_cb_ {                   // Timer Control Block
+  struct os_timer_cb_ *next;                    // Pointer to next active Timer
+  uint8_t             state;                    // Timer State
+  uint8_t              type;                    // Timer Type (Periodic/One-shot)
+  uint16_t         reserved;                    // Reserved
+  uint16_t             tcnt;                    // Timer Delay Count
+  uint16_t             icnt;                    // Timer Initial Count 
+  void                 *arg;                    // Timer Function Argument
+  osTimerDef_t       *timer;                    // Pointer to Timer definition
+} os_timer_cb;
+
+// Timer variables
+os_timer_cb *os_timer_head;                     // Pointer to first active Timer
+
+
+// Timer Helper Functions
+
+// Insert Timer into the list sorted by time
+static void rt_timer_insert (os_timer_cb *pt, uint32_t tcnt) {
+  os_timer_cb *p, *prev;
+
+  prev = NULL;
+  p = os_timer_head;
+  while (p != NULL) {
+    if (tcnt < p->tcnt) break;
+    tcnt -= p->tcnt;
+    prev = p;
+    p = p->next;
+  }
+  pt->next = p;
+  pt->tcnt = (uint16_t)tcnt;
+  if (p != NULL) {
+    p->tcnt -= pt->tcnt;
+  }
+  if (prev != NULL) {
+    prev->next = pt;
+  } else {
+    os_timer_head = pt;
+  }
+}
+
+// Remove Timer from the list
+static int rt_timer_remove (os_timer_cb *pt) {
+  os_timer_cb *p, *prev;
+
+  prev = NULL;
+  p = os_timer_head;
+  while (p != NULL) {
+    if (p == pt) break;
+    prev = p;
+    p = p->next;
+  }
+  if (p == NULL) return -1;
+  if (prev != NULL) {
+    prev->next = pt->next;
+  } else {
+    os_timer_head = pt->next;
+  }
+  if (pt->next != NULL) {
+    pt->next->tcnt += pt->tcnt;
+  }
+
+  return 0;
+}
+
+
+// Timer Service Calls declarations
+SVC_3_1(svcTimerCreate,           osTimerId,  osTimerDef_t *, os_timer_type, void *, RET_pointer)
+SVC_2_1(svcTimerStart,            osStatus,   osTimerId,      uint32_t,              RET_osStatus)
+SVC_1_1(svcTimerStop,             osStatus,   osTimerId,                             RET_osStatus)
+SVC_1_1(svcTimerDelete,           osStatus,   osTimerId,                             RET_osStatus)
+SVC_1_2(svcTimerCall,   os_InRegs osCallback, osTimerId,                             RET_osCallback)
+
+// Timer Management Service Calls
+
+/// Create timer
+osTimerId svcTimerCreate (osTimerDef_t *timer_def, os_timer_type type, void *argument) {
+  os_timer_cb *pt;
+
+  if ((timer_def == NULL) || (timer_def->ptimer == NULL)) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  pt = timer_def->timer;
+  if (pt == NULL) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  if ((type != osTimerOnce) && (type != osTimerPeriodic)) {
+    sysThreadError(osErrorValue);
+    return NULL;
+  }
+
+  if (osThreadId_osTimerThread == NULL) {
+    sysThreadError(osErrorResource);
+    return NULL;
+  }
+
+  if (pt->state != osTimerInvalid){
+    sysThreadError(osErrorResource);
+    return NULL;
+  }
+
+  pt->state = osTimerStopped;
+  pt->type  =  (uint8_t)type;
+  pt->arg   = argument;
+  pt->timer = timer_def;
+
+  return (osTimerId)pt;
+}
+
+/// Start or restart timer
+osStatus svcTimerStart (osTimerId timer_id, uint32_t millisec) {
+  os_timer_cb *pt;
+  uint32_t     tcnt;
+
+  pt = rt_id2obj(timer_id);
+  if (pt == NULL) return osErrorParameter;
+
+  tcnt = rt_ms2tick(millisec);
+  if (tcnt == 0) return osErrorValue;
+
+  switch (pt->state) {
+    case osTimerRunning:
+      if (rt_timer_remove(pt) != 0) {
+        return osErrorResource;
+      }
+      break;
+    case osTimerStopped:
+      pt->state = osTimerRunning;
+      pt->icnt  = (uint16_t)tcnt;
+      break;
+    default:
+      return osErrorResource;
+  }
+  
+  rt_timer_insert(pt, tcnt);
+
+  return osOK;
+}
+
+/// Stop timer
+osStatus svcTimerStop (osTimerId timer_id) {
+  os_timer_cb *pt;
+
+  pt = rt_id2obj(timer_id);
+  if (pt == NULL) return osErrorParameter;
+
+  if (pt->state != osTimerRunning) return osErrorResource;
+
+  pt->state = osTimerStopped;
+
+  if (rt_timer_remove(pt) != 0) {
+    return osErrorResource;
+  }
+
+  return osOK;
+}
+
+/// Delete timer
+osStatus svcTimerDelete (osTimerId timer_id) {
+  os_timer_cb *pt;
+
+  pt = rt_id2obj(timer_id);
+  if (pt == NULL) return osErrorParameter;
+
+  switch (pt->state) {
+    case osTimerRunning:
+      rt_timer_remove(pt);
+      break;
+    case osTimerStopped:
+      break;
+    default:
+      return osErrorResource;
+  }
+
+  pt->state = osTimerInvalid;
+
+  return osOK;
+}
+
+/// Get timer callback parameters
+os_InRegs osCallback_type svcTimerCall (osTimerId timer_id) {
+  os_timer_cb *pt;
+  osCallback   ret;
+
+  pt = rt_id2obj(timer_id);
+  if (pt == NULL) {
+    ret.fp  = NULL;
+    ret.arg = NULL;
+    return osCallback_ret;
+  }
+
+  ret.fp  = (void *)pt->timer->ptimer;
+  ret.arg = pt->arg;
+
+  return osCallback_ret;
+}
+
+static __INLINE osStatus isrMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec);
+
+/// Timer Tick (called each SysTick)
+void sysTimerTick (void) {
+  os_timer_cb *pt, *p;
+
+  p = os_timer_head;
+  if (p == NULL) return;
+
+  p->tcnt--;
+  while ((p != NULL) && (p->tcnt == 0)) {
+    pt = p;
+    p = p->next;
+    os_timer_head = p;
+    isrMessagePut(osMessageQId_osTimerMessageQ, (uint32_t)pt, 0);
+    if (pt->type == osTimerPeriodic) {
+      rt_timer_insert(pt, pt->icnt);
+    } else {
+      pt->state = osTimerStopped;
+    }
+  }
+}
+
+
+// Timer Management Public API
+
+/// Create timer
+osTimerId osTimerCreate (osTimerDef_t *timer_def, os_timer_type type, void *argument) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcTimerCreate(timer_def, type, argument);
+  } else {
+    return __svcTimerCreate(timer_def, type, argument);
+  }
+}
+
+/// Start or restart timer
+osStatus osTimerStart (osTimerId timer_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcTimerStart(timer_id, millisec);
+}
+
+/// Stop timer
+osStatus osTimerStop (osTimerId timer_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcTimerStop(timer_id);
+}
+
+/// Delete timer
+osStatus osTimerDelete (osTimerId timer_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcTimerDelete(timer_id);
+}
+
+/// INTERNAL - Not Public
+/// Get timer callback parameters (used by OS Timer Thread)
+os_InRegs osCallback osTimerCall (osTimerId timer_id) { 
+  return __svcTimerCall(timer_id); 
+}
+
+
+// Timer Thread
+__NO_RETURN void osTimerThread (void const *argument) {
+  osCallback cb;
+  osEvent    evt;
+
+  for (;;) {
+    evt = osMessageGet(osMessageQId_osTimerMessageQ, osWaitForever);
+    if (evt.status == osEventMessage) {
+      cb = osTimerCall(evt.value.p);
+      if (cb.fp != NULL) {
+        (*(os_ptimer)cb.fp)(cb.arg);
+      }
+    }
+  }
+}
+
+
+// ==== Signal Management ====
+
+// Signal Service Calls declarations
+SVC_2_1(svcSignalSet,             int32_t, osThreadId, int32_t,  RET_int32_t)
+SVC_2_1(svcSignalClear,           int32_t, osThreadId, int32_t,  RET_int32_t)
+SVC_1_1(svcSignalGet,             int32_t, osThreadId,           RET_int32_t)
+SVC_2_3(svcSignalWait,  os_InRegs osEvent, int32_t,    uint32_t, RET_osEvent)
+
+// Signal Service Calls
+
+/// Set the specified Signal Flags of an active thread
+int32_t svcSignalSet (osThreadId thread_id, int32_t signals) {
+  P_TCB   ptcb;
+  int32_t sig;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return 0x80000000;
+
+  if (signals & (0xFFFFFFFF << osFeature_Signals)) return 0x80000000;
+
+  sig = ptcb->events;                           // Previous signal flags
+
+  rt_evt_set(signals, ptcb->task_id);           // Set event flags
+
+  return sig;
+}
+
+/// Clear the specified Signal Flags of an active thread
+int32_t svcSignalClear (osThreadId thread_id, int32_t signals) {
+  P_TCB   ptcb;
+  int32_t sig;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return 0x80000000;
+
+  if (signals & (0xFFFFFFFF << osFeature_Signals)) return 0x80000000;
+
+  sig = ptcb->events;                           // Previous signal flags
+
+  rt_evt_clr(signals, ptcb->task_id);           // Clear event flags
+
+  return sig;
+}
+
+/// Get Signal Flags status of an active thread
+int32_t svcSignalGet (osThreadId thread_id) {
+  P_TCB ptcb;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return 0x80000000;
+
+  return ptcb->events;                          // Return event flags
+}
+
+/// Wait for one or more Signal Flags to become signaled for the current RUNNING thread
+os_InRegs osEvent_type svcSignalWait (int32_t signals, uint32_t millisec) {
+  OS_RESULT res;
+  osEvent   ret;
+
+  if (signals & (0xFFFFFFFF << osFeature_Signals)) {
+    ret.status = osErrorValue;
+    return osEvent_ret_status;
+  }
+
+  if (signals != 0) {                           // Wait for all specified signals
+    res = rt_evt_wait(signals, rt_ms2tick(millisec), __TRUE);
+  } else {                                      // Wait for any signal
+    res = rt_evt_wait(0xFFFF,  rt_ms2tick(millisec), __FALSE);
+  }
+
+  if (res == OS_R_EVT) {
+    ret.status = osEventSignal;
+    ret.value.signals = signals ? signals : os_tsk.run->waits;
+  } else {
+    ret.status = millisec ? osEventTimeout : osOK;
+    ret.value.signals = 0;
+  }
+
+  return osEvent_ret_value;
+}
+
+
+// Signal ISR Calls
+
+/// Set the specified Signal Flags of an active thread
+static __INLINE int32_t isrSignalSet (osThreadId thread_id, int32_t signals) {
+  P_TCB   ptcb;
+  int32_t sig;
+
+  ptcb = rt_tid2ptcb(thread_id);                // Get TCB pointer
+  if (ptcb == NULL) return 0x80000000;
+
+  if (signals & (0xFFFFFFFF << osFeature_Signals)) return 0x80000000;
+
+  sig = ptcb->events;                           // Previous signal flags
+
+  isr_evt_set(signals, ptcb->task_id);          // Set event flags
+
+  return sig;
+}
+
+
+// Signal Public API
+
+/// Set the specified Signal Flags of an active thread
+int32_t osSignalSet (osThreadId thread_id, int32_t signals) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   isrSignalSet(thread_id, signals); 
+  } else {                                      // in Thread
+    return __svcSignalSet(thread_id, signals);
+  }
+}
+
+/// Clear the specified Signal Flags of an active thread
+int32_t osSignalClear (osThreadId thread_id, int32_t signals) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcSignalClear(thread_id, signals);
+}
+
+/// Get Signal Flags status of an active thread
+int32_t osSignalGet (osThreadId thread_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcSignalGet(thread_id);
+}
+
+/// Wait for one or more Signal Flags to become signaled for the current RUNNING thread
+os_InRegs osEvent osSignalWait (int32_t signals, uint32_t millisec) {
+  osEvent ret;
+
+  if (__get_IPSR() != 0) {                      // Not allowed in ISR
+    ret.status = osErrorISR;
+    return ret;
+  }
+  return __svcSignalWait(signals, millisec);
+}
+
+
+// ==== Mutex Management ====
+
+// Mutex Service Calls declarations
+SVC_1_1(svcMutexCreate,  osMutexId, osMutexDef_t *,           RET_pointer)
+SVC_2_1(svcMutexWait,    osStatus,  osMutexId,      uint32_t, RET_osStatus)
+SVC_1_1(svcMutexRelease, osStatus,  osMutexId,                RET_osStatus)
+SVC_1_1(svcMutexDelete,  osStatus,  osMutexId,                RET_osStatus)
+
+// Mutex Service Calls
+
+/// Create and Initialize a Mutex object
+osMutexId svcMutexCreate (osMutexDef_t *mutex_def) {
+  OS_ID mut;
+
+  if (mutex_def == NULL) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  mut = mutex_def->mutex;
+  if (mut == NULL) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  if (((P_MUCB)mut)->cb_type != 0) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  rt_mut_init(mut);                             // Initialize Mutex
+
+  return mut;
+}
+
+/// Wait until a Mutex becomes available
+osStatus svcMutexWait (osMutexId mutex_id, uint32_t millisec) {
+  OS_ID     mut;
+  OS_RESULT res;
+
+  mut = rt_id2obj(mutex_id);
+  if (mut == NULL) return osErrorParameter;
+
+  if (((P_MUCB)mut)->cb_type != MUCB) return osErrorParameter;
+
+  res = rt_mut_wait(mut, rt_ms2tick(millisec)); // Wait for Mutex
+
+  if (res == OS_R_TMO) {
+    return (millisec ? osErrorTimeoutResource : osErrorResource);
+  }
+
+  return osOK;
+}
+
+/// Release a Mutex that was obtained with osMutexWait
+osStatus svcMutexRelease (osMutexId mutex_id) {
+  OS_ID     mut;
+  OS_RESULT res;
+
+  mut = rt_id2obj(mutex_id);
+  if (mut == NULL) return osErrorParameter;
+
+  if (((P_MUCB)mut)->cb_type != MUCB) return osErrorParameter;
+
+  res = rt_mut_release(mut);                    // Release Mutex
+
+  if (res == OS_R_NOK) return osErrorResource;  // Thread not owner or Zero Counter
+
+  return osOK;
+}
+
+/// Delete a Mutex that was created by osMutexCreate
+osStatus svcMutexDelete (osMutexId mutex_id) {
+  OS_ID mut;
+
+  mut = rt_id2obj(mutex_id);
+  if (mut == NULL) return osErrorParameter;
+
+  if (((P_MUCB)mut)->cb_type != MUCB) return osErrorParameter;
+
+  rt_mut_delete(mut);                           // Release Mutex
+
+  return osOK;
+}
+
+
+// Mutex Public API
+
+/// Create and Initialize a Mutex object
+osMutexId osMutexCreate (osMutexDef_t *mutex_def) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return    svcMutexCreate(mutex_def);
+  } else {
+    return __svcMutexCreate(mutex_def);
+  }
+}
+
+/// Wait until a Mutex becomes available
+osStatus osMutexWait (osMutexId mutex_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcMutexWait(mutex_id, millisec);
+}
+
+/// Release a Mutex that was obtained with osMutexWait
+osStatus osMutexRelease (osMutexId mutex_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcMutexRelease(mutex_id);
+}
+
+/// Delete a Mutex that was created by osMutexCreate
+osStatus osMutexDelete (osMutexId mutex_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcMutexDelete(mutex_id);
+}
+
+
+// ==== Semaphore Management ====
+
+// Semaphore Service Calls declarations
+SVC_2_1(svcSemaphoreCreate,  osSemaphoreId, const osSemaphoreDef_t *,  int32_t, RET_pointer)
+SVC_2_1(svcSemaphoreWait,    int32_t,       osSemaphoreId,      uint32_t, RET_int32_t)
+SVC_1_1(svcSemaphoreRelease, osStatus,      osSemaphoreId,                RET_osStatus)
+SVC_1_1(svcSemaphoreDelete,  osStatus,            osSemaphoreId,                RET_osStatus)
+
+// Semaphore Service Calls
+
+/// Create and Initialize a Semaphore object
+osSemaphoreId svcSemaphoreCreate (const osSemaphoreDef_t *semaphore_def, int32_t count) {
+  OS_ID sem;
+
+  if (semaphore_def == NULL) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  sem = semaphore_def->semaphore;
+  if (sem == NULL) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  if (((P_SCB)sem)->cb_type != 0) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  if (count > osFeature_Semaphore) {
+    sysThreadError(osErrorValue);
+    return NULL;
+  }
+
+  rt_sem_init(sem, count);                      // Initialize Semaphore
+  
+  return sem;
+}
+
+/// Wait until a Semaphore becomes available
+int32_t svcSemaphoreWait (osSemaphoreId semaphore_id, uint32_t millisec) {
+  OS_ID     sem;
+  OS_RESULT res;
+
+  sem = rt_id2obj(semaphore_id);
+  if (sem == NULL) return -1;
+
+  if (((P_SCB)sem)->cb_type != SCB) return -1;
+
+  res = rt_sem_wait(sem, rt_ms2tick(millisec)); // Wait for Semaphore
+
+  if (res == OS_R_TMO) return 0;                // Timeout
+
+  return (((P_SCB)sem)->tokens + 1);
+}
+
+/// Release a Semaphore
+osStatus svcSemaphoreRelease (osSemaphoreId semaphore_id) {
+  OS_ID sem;
+
+  sem = rt_id2obj(semaphore_id);
+  if (sem == NULL) return osErrorParameter;
+
+  if (((P_SCB)sem)->cb_type != SCB) return osErrorParameter;
+
+  if (((P_SCB)sem)->tokens == osFeature_Semaphore) return osErrorResource;
+  
+  rt_sem_send(sem);                             // Release Semaphore
+
+  return osOK;
+}
+
+/// Delete a Semaphore that was created by osSemaphoreCreate
+osStatus svcSemaphoreDelete (osSemaphoreId semaphore_id) {
+  OS_ID sem;
+
+  sem = rt_id2obj(semaphore_id);
+  if (sem == NULL) return osErrorParameter;
+
+  if (((P_SCB)sem)->cb_type != SCB) return osErrorParameter;
+
+  rt_sem_delete(sem);                           // Delete Semaphore
+
+  return osOK;
+}
+
+
+// Semaphore ISR Calls
+
+/// Release a Semaphore
+static __INLINE osStatus isrSemaphoreRelease (osSemaphoreId semaphore_id) {
+  OS_ID sem;
+
+  sem = rt_id2obj(semaphore_id);
+  if (sem == NULL) return osErrorParameter;
+
+  if (((P_SCB)sem)->cb_type != SCB) return osErrorParameter;
+
+  if (((P_SCB)sem)->tokens == osFeature_Semaphore) return osErrorResource;
+
+  isr_sem_send(sem);                            // Release Semaphore
+
+  return osOK;
+}
+
+
+// Semaphore Public API
+
+/// Create and Initialize a Semaphore object
+osSemaphoreId osSemaphoreCreate (osSemaphoreDef_t *semaphore_def, int32_t count) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcSemaphoreCreate(semaphore_def, count);
+  } else {
+    return __svcSemaphoreCreate(semaphore_def, count);
+  }
+}
+
+/// Wait until a Semaphore becomes available
+int32_t osSemaphoreWait (osSemaphoreId semaphore_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) return -1;             // Not allowed in ISR
+  return __svcSemaphoreWait(semaphore_id, millisec);
+}
+
+/// Release a Semaphore
+osStatus osSemaphoreRelease (osSemaphoreId semaphore_id) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   isrSemaphoreRelease(semaphore_id);
+  } else {                                      // in Thread
+    return __svcSemaphoreRelease(semaphore_id);
+  }
+}
+
+/// Delete a Semaphore that was created by osSemaphoreCreate
+osStatus osSemaphoreDelete (osSemaphoreId semaphore_id) {
+  if (__get_IPSR() != 0) return osErrorISR;     // Not allowed in ISR
+  return __svcSemaphoreDelete(semaphore_id);
+}
+
+
+// ==== Memory Management Functions ====
+
+// Memory Management Helper Functions
+
+// Clear Memory Box (Zero init)
+static void rt_clr_box (void *box_mem, void *box) {
+  uint32_t *p, n;
+
+  if (box) {
+    p = box;
+    for (n = ((P_BM)box_mem)->blk_size; n; n -= 4) {
+      *p++ = 0;
+    }
+  }
+}
+
+// Memory Management Service Calls declarations
+SVC_1_1(svcPoolCreate, osPoolId, const osPoolDef_t *,           RET_pointer)
+SVC_2_1(sysPoolAlloc,  void *,   osPoolId,      uint32_t, RET_pointer)
+SVC_2_1(sysPoolFree,   osStatus, osPoolId,      void *,   RET_osStatus)
+
+// Memory Management Service & ISR Calls
+
+/// Create and Initialize memory pool
+osPoolId svcPoolCreate (const osPoolDef_t *pool_def) {
+  uint32_t blk_sz;
+
+  if ((pool_def == NULL) ||
+      (pool_def->pool_sz == 0) ||
+      (pool_def->item_sz == 0) ||
+      (pool_def->pool == NULL)) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  blk_sz = (pool_def->item_sz + 3) & ~3;
+
+  _init_box(pool_def->pool, sizeof(struct OS_BM) + pool_def->pool_sz * blk_sz, blk_sz);
+
+  return pool_def->pool;
+}
+
+/// Allocate a memory block from a memory pool
+void *sysPoolAlloc (osPoolId pool_id, uint32_t clr) {
+  void *ptr;
+
+  if (pool_id == NULL) return NULL;
+
+  ptr = rt_alloc_box(pool_id);
+  if (clr) {
+    rt_clr_box(pool_id, ptr);
+  }
+
+  return ptr;
+}
+
+/// Return an allocated memory block back to a specific memory pool
+osStatus sysPoolFree (osPoolId pool_id, void *block) {
+  int32_t res;
+    
+  if (pool_id == NULL) return osErrorParameter;
+
+  res = rt_free_box(pool_id, block);
+  if (res != 0) return osErrorValue;
+
+  return osOK;
+}
+
+
+// Memory Management Public API
+
+/// Create and Initialize memory pool
+osPoolId osPoolCreate (osPoolDef_t *pool_def) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcPoolCreate(pool_def);
+  } else {
+    return __svcPoolCreate(pool_def);
+  }
+}
+
+/// Allocate a memory block from a memory pool
+void *osPoolAlloc (osPoolId pool_id) {
+  if ((__get_IPSR() != 0) || ((__get_CONTROL() & 1) == 0)) {    // in ISR or Privileged
+    return   sysPoolAlloc(pool_id, 0);
+  } else {                                      // in Thread
+    return __sysPoolAlloc(pool_id, 0);
+  }
+}
+
+/// Allocate a memory block from a memory pool and set memory block to zero
+void *osPoolCAlloc (osPoolId pool_id) {
+  if ((__get_IPSR() != 0) || ((__get_CONTROL() & 1) == 0)) {    // in ISR or Privileged
+    return   sysPoolAlloc(pool_id, 1);
+  } else {                                      // in Thread
+    return __sysPoolAlloc(pool_id, 1);
+  }
+}
+
+/// Return an allocated memory block back to a specific memory pool
+osStatus osPoolFree (osPoolId pool_id, void *block) {
+  if ((__get_IPSR() != 0) || ((__get_CONTROL() & 1) == 0)) {    // in ISR or Privileged
+    return   sysPoolFree(pool_id, block);
+  } else {                                      // in Thread
+    return __sysPoolFree(pool_id, block);
+  }
+}
+
+
+// ==== Message Queue Management Functions ====
+
+// Message Queue Management Service Calls declarations
+SVC_2_1(svcMessageCreate,        osMessageQId,    osMessageQDef_t *, osThreadId,           RET_pointer)
+SVC_3_1(svcMessagePut,              osStatus,     osMessageQId,      uint32_t,   uint32_t, RET_osStatus)
+SVC_2_3(svcMessageGet,    os_InRegs osEvent,      osMessageQId,      uint32_t,             RET_osEvent)
+
+// Message Queue Service Calls
+
+/// Create and Initialize Message Queue
+osMessageQId svcMessageCreate (osMessageQDef_t *queue_def, osThreadId thread_id) {
+
+  if ((queue_def == NULL) ||
+      (queue_def->queue_sz == 0) ||
+      (queue_def->pool == NULL)) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+  
+  if (((P_MCB)queue_def->pool)->cb_type != 0) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  rt_mbx_init(queue_def->pool, 4*(queue_def->queue_sz + 4));
+
+  return queue_def->pool;
+}
+
+/// Put a Message to a Queue
+osStatus svcMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec) {
+  OS_RESULT res;
+
+  if (queue_id == NULL) return osErrorParameter;
+
+  if (((P_MCB)queue_id)->cb_type != MCB) return osErrorParameter;
+
+  res = rt_mbx_send(queue_id, (void *)info, rt_ms2tick(millisec));
+
+  if (res == OS_R_TMO) {
+    return (millisec ? osErrorTimeoutResource : osErrorResource);
+  }
+
+  return osOK;
+}
+
+/// Get a Message or Wait for a Message from a Queue
+os_InRegs osEvent_type svcMessageGet (osMessageQId queue_id, uint32_t millisec) {
+  OS_RESULT res;
+  osEvent   ret;
+
+  if (queue_id == NULL) {
+    ret.status = osErrorParameter;
+    return osEvent_ret_status;
+  }
+
+  if (((P_MCB)queue_id)->cb_type != MCB) {
+    ret.status = osErrorParameter;
+    return osEvent_ret_status;
+  }
+
+  res = rt_mbx_wait(queue_id, &ret.value.p, rt_ms2tick(millisec));
+  
+  if (res == OS_R_TMO) {
+    ret.status = millisec ? osEventTimeout : osOK;
+    return osEvent_ret_value;
+  }
+
+  ret.status = osEventMessage;
+
+  return osEvent_ret_value;
+}
+
+
+// Message Queue ISR Calls
+
+/// Put a Message to a Queue
+static __INLINE osStatus isrMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec) {
+
+  if ((queue_id == NULL) || (millisec != 0)) {
+    return osErrorParameter;
+  }
+
+  if (((P_MCB)queue_id)->cb_type != MCB) return osErrorParameter;
+
+  if (rt_mbx_check(queue_id) == 0) {            // Check if Queue is full
+    return osErrorResource;
+  }
+
+  isr_mbx_send(queue_id, (void *)info);
+
+  return osOK;
+}
+
+/// Get a Message or Wait for a Message from a Queue
+static __INLINE os_InRegs osEvent isrMessageGet (osMessageQId queue_id, uint32_t millisec) {
+  OS_RESULT res;
+  osEvent   ret;
+
+  if ((queue_id == NULL) || (millisec != 0)) {
+    ret.status = osErrorParameter;
+    return ret;
+  }
+
+  if (((P_MCB)queue_id)->cb_type != MCB) {
+    ret.status = osErrorParameter;
+    return ret;
+  }
+
+  res = isr_mbx_receive(queue_id, &ret.value.p);
+  
+  if (res != OS_R_MBX) {
+    ret.status = osOK;
+    return ret;
+  }
+
+  ret.status = osEventMessage; 
+
+  return ret;
+}
+
+
+// Message Queue Management Public API
+
+/// Create and Initialize Message Queue
+osMessageQId osMessageCreate (osMessageQDef_t *queue_def, osThreadId thread_id) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcMessageCreate(queue_def, thread_id);
+  } else {
+    return __svcMessageCreate(queue_def, thread_id);
+  }
+}
+
+/// Put a Message to a Queue
+osStatus osMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   isrMessagePut(queue_id, info, millisec);
+  } else {                                      // in Thread
+    return __svcMessagePut(queue_id, info, millisec);
+  }
+}
+
+/// Get a Message or Wait for a Message from a Queue
+os_InRegs osEvent osMessageGet (osMessageQId queue_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   isrMessageGet(queue_id, millisec);
+  } else {                                      // in Thread
+    return __svcMessageGet(queue_id, millisec);
+  }
+}
+
+
+// ==== Mail Queue Management Functions ====
+
+// Mail Queue Management Service Calls declarations
+SVC_2_1(svcMailCreate, osMailQId, osMailQDef_t *, osThreadId,                   RET_pointer)
+SVC_4_1(sysMailAlloc,  void *,    osMailQId,      uint32_t, uint32_t, uint32_t, RET_pointer)
+SVC_3_1(sysMailFree,   osStatus,  osMailQId,      void *,   uint32_t,           RET_osStatus)
+
+// Mail Queue Management Service & ISR Calls
+
+/// Create and Initialize mail queue
+osMailQId svcMailCreate (osMailQDef_t *queue_def, osThreadId thread_id) {
+  uint32_t blk_sz;
+  P_MCB    pmcb;
+  void    *pool;
+
+  if ((queue_def == NULL) ||
+      (queue_def->queue_sz == 0) ||
+      (queue_def->item_sz  == 0) ||
+      (queue_def->pool == NULL)) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  pmcb = *(((void **)queue_def->pool) + 0);
+  pool = *(((void **)queue_def->pool) + 1);
+
+  if ((pool == NULL) || (pmcb == NULL) || (pmcb->cb_type != 0)) {
+    sysThreadError(osErrorParameter);
+    return NULL;
+  }
+
+  blk_sz = (queue_def->item_sz + 3) & ~3;
+
+  _init_box(pool, sizeof(struct OS_BM) + queue_def->queue_sz * blk_sz, blk_sz);
+
+  rt_mbx_init(pmcb, 4*(queue_def->queue_sz + 4));
+
+
+  return queue_def->pool;
+}
+
+/// Allocate a memory block from a mail
+void *sysMailAlloc (osMailQId queue_id, uint32_t millisec, uint32_t isr, uint32_t clr) {
+  P_MCB pmcb;
+  void *pool;
+  void *mem;
+
+  if (queue_id == NULL) return NULL;
+
+  pmcb = *(((void **)queue_id) + 0);
+  pool = *(((void **)queue_id) + 1);
+
+  if ((pool == NULL) || (pmcb == NULL)) return NULL;
+
+  if (isr && (millisec != 0)) return NULL;
+
+  mem = rt_alloc_box(pool);
+  if (clr) {
+    rt_clr_box(pool, mem);
+  }
+
+  if ((mem == NULL) && (millisec != 0)) {
+    // Put Task to sleep when Memory not available
+    if (pmcb->p_lnk != NULL) {
+      rt_put_prio((P_XCB)pmcb, os_tsk.run);
+    } else {
+      pmcb->p_lnk = os_tsk.run;
+      os_tsk.run->p_lnk = NULL;
+      os_tsk.run->p_rlnk = (P_TCB)pmcb;
+      // Task is waiting to allocate a message
+      pmcb->state = 3;
+    }
+    rt_block(rt_ms2tick(millisec), WAIT_MBX);
+  }
+
+  return mem;  
+}
+
+/// Free a memory block from a mail
+osStatus sysMailFree (osMailQId queue_id, void *mail, uint32_t isr) {
+  P_MCB   pmcb;
+  P_TCB   ptcb;
+  void   *pool;
+  void   *mem;
+  int32_t res;
+
+  if (queue_id == NULL) return osErrorParameter;
+
+  pmcb = *(((void **)queue_id) + 0);
+  pool = *(((void **)queue_id) + 1);
+
+  if ((pmcb == NULL) || (pool == NULL)) return osErrorParameter;
+
+  res = rt_free_box(pool, mail);
+
+  if (res != 0) return osErrorValue;
+
+  if (pmcb->state == 3) {
+    // Task is waiting to allocate a message
+    if (isr) {
+      rt_psq_enq (pmcb, (U32)pool);
+      rt_psh_req ();
+    } else {
+      mem = rt_alloc_box(pool);
+      if (mem != NULL) {
+        ptcb = rt_get_first((P_XCB)pmcb);
+        if (pmcb->p_lnk == NULL) {
+          pmcb->state = 0;
+        }
+        rt_ret_val(ptcb, (U32)mem);
+        rt_rmv_dly(ptcb);
+        rt_dispatch(ptcb);
+      }
+    }
+  }
+
+  return osOK;
+}
+
+
+// Mail Queue Management Public API
+
+/// Create and Initialize mail queue
+osMailQId osMailCreate (osMailQDef_t *queue_def, osThreadId thread_id) {
+  if (__get_IPSR() != 0) return NULL;           // Not allowed in ISR
+  if (((__get_CONTROL() & 1) == 0) && (os_running == 0)) {
+    // Privileged and not running
+    return   svcMailCreate(queue_def, thread_id);
+  } else {
+    return __svcMailCreate(queue_def, thread_id);
+  }
+}
+
+/// Allocate a memory block from a mail
+void *osMailAlloc (osMailQId queue_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   sysMailAlloc(queue_id, millisec, 1, 0);
+  } else {                                      // in Thread
+    return __sysMailAlloc(queue_id, millisec, 0, 0);
+  }
+}
+
+/// Allocate a memory block from a mail and set memory block to zero
+void *osMailCAlloc (osMailQId queue_id, uint32_t millisec) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   sysMailAlloc(queue_id, millisec, 1, 1);
+  } else {                                      // in Thread
+    return __sysMailAlloc(queue_id, millisec, 0, 1);
+  }
+}
+
+/// Free a memory block from a mail
+osStatus osMailFree (osMailQId queue_id, void *mail) {
+  if (__get_IPSR() != 0) {                      // in ISR
+    return   sysMailFree(queue_id, mail, 1);
+  } else {                                      // in Thread
+    return __sysMailFree(queue_id, mail, 0);
+  }
+}
+
+/// Put a mail to a queue
+osStatus osMailPut (osMailQId queue_id, void *mail) {
+  if (queue_id == NULL) return osErrorParameter;
+  if (mail == NULL)     return osErrorValue;
+  return osMessagePut(*((void **)queue_id), (uint32_t)mail, 0);
+}
+
+/// Get a mail from a queue
+os_InRegs osEvent osMailGet (osMailQId queue_id, uint32_t millisec) {
+  osEvent ret;
+
+  if (queue_id == NULL) {
+    ret.status = osErrorParameter;
+    return ret;
+  }
+
+  ret = osMessageGet(*((void **)queue_id), millisec);
+  if (ret.status == osEventMessage) ret.status = osEventMail;
+
+  return ret;
+}
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Event.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Event.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,190 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_EVENT.C
+ *      Purpose: Implements waits and wake-ups for event flags
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_Event.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_HAL_CM.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_evt_wait -----------------------------------*/
+
+OS_RESULT rt_evt_wait (U16 wait_flags, U16 timeout, BOOL and_wait) {
+  /* Wait for one or more event flags with optional time-out.                */
+  /* "wait_flags" identifies the flags to wait for.                          */
+  /* "timeout" is the time-out limit in system ticks (0xffff if no time-out) */
+  /* "and_wait" specifies the AND-ing of "wait_flags" as condition to be met */
+  /* to complete the wait. (OR-ing if set to 0).                             */
+  U32 block_state;
+
+  if (and_wait) {
+    /* Check for AND-connected events */
+    if ((os_tsk.run->events & wait_flags) == wait_flags) {
+      os_tsk.run->events &= ~wait_flags;
+      return (OS_R_EVT);
+    }
+    block_state = WAIT_AND;
+  }
+  else {
+    /* Check for OR-connected events */
+    if (os_tsk.run->events & wait_flags) {
+      os_tsk.run->waits = os_tsk.run->events & wait_flags;
+      os_tsk.run->events &= ~wait_flags;
+      return (OS_R_EVT);
+    }
+    block_state = WAIT_OR;
+  }
+  /* Task has to wait */
+  os_tsk.run->waits = wait_flags;
+  rt_block (timeout, (U8)block_state);
+  return (OS_R_TMO);
+}
+
+
+/*--------------------------- rt_evt_set ------------------------------------*/
+
+void rt_evt_set (U16 event_flags, OS_TID task_id) {
+  /* Set one or more event flags of a selectable task. */
+  P_TCB p_tcb;
+
+  p_tcb = os_active_TCB[task_id-1];
+  if (p_tcb == NULL) {
+    return;
+  }
+  p_tcb->events |= event_flags;
+  event_flags    = p_tcb->waits;
+  /* If the task is not waiting for an event, it should not be put */
+  /* to ready state. */
+  if (p_tcb->state == WAIT_AND) {
+    /* Check for AND-connected events */
+    if ((p_tcb->events & event_flags) == event_flags) {
+      goto wkup;
+    }
+  }
+  if (p_tcb->state == WAIT_OR) {
+    /* Check for OR-connected events */
+    if (p_tcb->events & event_flags) {
+      p_tcb->waits  &= p_tcb->events;
+wkup: p_tcb->events &= ~event_flags;
+      rt_rmv_dly (p_tcb);
+      p_tcb->state   = READY;
+#ifdef __CMSIS_RTOS
+      rt_ret_val2(p_tcb, 0x08/*osEventSignal*/, p_tcb->waits); 
+#else
+      rt_ret_val (p_tcb, OS_R_EVT);
+#endif
+      rt_dispatch (p_tcb);
+    }
+  }
+}
+
+
+/*--------------------------- rt_evt_clr ------------------------------------*/
+
+void rt_evt_clr (U16 clear_flags, OS_TID task_id) {
+  /* Clear one or more event flags (identified by "clear_flags") of a */
+  /* selectable task (identified by "task"). */
+  P_TCB task = os_active_TCB[task_id-1];
+
+  if (task == NULL) {
+    return;
+  }
+  task->events &= ~clear_flags;
+}
+
+
+/*--------------------------- isr_evt_set -----------------------------------*/
+
+void isr_evt_set (U16 event_flags, OS_TID task_id) {
+  /* Same function as "os_evt_set", but to be called by ISRs. */
+  P_TCB p_tcb = os_active_TCB[task_id-1];
+
+  if (p_tcb == NULL) {
+    return;
+  }
+  rt_psq_enq (p_tcb, event_flags);
+  rt_psh_req ();
+}
+
+
+/*--------------------------- rt_evt_get ------------------------------------*/
+
+U16 rt_evt_get (void) {
+  /* Get events of a running task after waiting for OR connected events. */
+  return (os_tsk.run->waits);
+}
+
+
+/*--------------------------- rt_evt_psh ------------------------------------*/
+
+void rt_evt_psh (P_TCB p_CB, U16 set_flags) {
+  /* Check if task has to be waken up */
+  U16 event_flags;
+
+  p_CB->events |= set_flags;
+  event_flags = p_CB->waits;
+  if (p_CB->state == WAIT_AND) {
+    /* Check for AND-connected events */
+    if ((p_CB->events & event_flags) == event_flags) {
+      goto rdy;
+    }
+  }
+  if (p_CB->state == WAIT_OR) {
+    /* Check for OR-connected events */
+    if (p_CB->events & event_flags) {
+      p_CB->waits  &= p_CB->events;
+rdy:  p_CB->events &= ~event_flags;
+      rt_rmv_dly (p_CB);
+      p_CB->state   = READY;
+#ifdef __CMSIS_RTOS
+      rt_ret_val2(p_CB, 0x08/*osEventSignal*/, p_CB->waits); 
+#else
+      rt_ret_val (p_CB, OS_R_EVT);
+#endif
+      rt_put_prio (&os_rdy, p_CB);
+    }
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Event.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Event.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,46 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_EVENT.H
+ *      Purpose: Implements waits and wake-ups for event flags
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Functions */
+extern OS_RESULT rt_evt_wait (U16 wait_flags,  U16 timeout, BOOL and_wait);
+extern void      rt_evt_set  (U16 event_flags, OS_TID task_id);
+extern void      rt_evt_clr  (U16 clear_flags, OS_TID task_id);
+extern void      isr_evt_set (U16 event_flags, OS_TID task_id);
+extern U16       rt_evt_get  (void);
+extern void      rt_evt_psh  (P_TCB p_CB, U16 set_flags);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_HAL_CM.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_HAL_CM.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,276 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_HAL_CM.H
+ *      Purpose: Hardware Abstraction Layer for Cortex-M definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Definitions */
+#define INITIAL_xPSR    0x01000000
+#define DEMCR_TRCENA    0x01000000
+#define ITM_ITMENA      0x00000001
+#define MAGIC_WORD      0xE25A2EA5
+
+#if defined (__CC_ARM)          /* ARM Compiler */
+
+#if ((__TARGET_ARCH_7_M || __TARGET_ARCH_7E_M) && !NO_EXCLUSIVE_ACCESS)
+ #define __USE_EXCLUSIVE_ACCESS
+#else
+ #undef  __USE_EXCLUSIVE_ACCESS
+#endif
+
+#elif defined (__GNUC__)        /* GNU Compiler */
+
+#undef  __USE_EXCLUSIVE_ACCESS
+
+#if defined (__CORTEX_M0) || defined (__CORTEX_M0PLUS)
+#define __TARGET_ARCH_6S_M 1
+#else
+#define __TARGET_ARCH_6S_M 0
+#endif
+
+#if defined (__VFP_FP__) && !defined(__SOFTFP__)
+#define __TARGET_FPU_VFP 1
+#else
+#define __TARGET_FPU_VFP 0
+#endif
+
+#define __inline inline
+#define __weak   __attribute__((weak))
+
+#ifndef __CMSIS_GENERIC
+
+__attribute__((always_inline)) static inline void __enable_irq(void)
+{
+  __asm volatile ("cpsie i");
+}
+
+__attribute__((always_inline)) static inline U32 __disable_irq(void)
+{
+  U32 result;
+
+  __asm volatile ("mrs %0, primask" : "=r" (result));
+  __asm volatile ("cpsid i");
+  return(result & 1);
+}
+
+#endif
+
+__attribute__(( always_inline)) static inline U8 __clz(U32 value)
+{
+  U8 result;
+  
+  __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value));
+  return(result);
+}
+
+#elif defined (__ICCARM__)      /* IAR Compiler */
+
+#undef  __USE_EXCLUSIVE_ACCESS
+
+#if (__CORE__ == __ARM6M__)
+#define __TARGET_ARCH_6S_M 1
+#else
+#define __TARGET_ARCH_6S_M 0
+#endif
+
+#if defined __ARMVFP__
+#define __TARGET_FPU_VFP 1
+#else
+#define __TARGET_FPU_VFP 0
+#endif
+
+#define __inline inline
+
+#ifndef __CMSIS_GENERIC
+
+static inline void __enable_irq(void)
+{
+  __asm volatile ("cpsie i");
+}
+
+static inline U32 __disable_irq(void)
+{
+  U32 result;
+  
+  __asm volatile ("mrs %0, primask" : "=r" (result));
+  __asm volatile ("cpsid i");
+  return(result & 1);
+}
+
+#endif
+
+static inline U8 __clz(U32 value)
+{
+  U8 result;
+  
+  __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value));
+  return(result);
+}
+
+#endif
+
+/* NVIC registers */
+#define NVIC_ST_CTRL    (*((volatile U32 *)0xE000E010))
+#define NVIC_ST_RELOAD  (*((volatile U32 *)0xE000E014))
+#define NVIC_ST_CURRENT (*((volatile U32 *)0xE000E018))
+#define NVIC_ISER         ((volatile U32 *)0xE000E100)
+#define NVIC_ICER         ((volatile U32 *)0xE000E180)
+#if (__TARGET_ARCH_6S_M)
+#define NVIC_IP           ((volatile U32 *)0xE000E400)
+#else
+#define NVIC_IP           ((volatile U8  *)0xE000E400)
+#endif
+#define NVIC_INT_CTRL   (*((volatile U32 *)0xE000ED04))
+#define NVIC_AIR_CTRL   (*((volatile U32 *)0xE000ED0C))
+#define NVIC_SYS_PRI2   (*((volatile U32 *)0xE000ED1C))
+#define NVIC_SYS_PRI3   (*((volatile U32 *)0xE000ED20))
+
+#define OS_PEND_IRQ()   NVIC_INT_CTRL  = (1<<28)
+#define OS_PENDING      ((NVIC_INT_CTRL >> 26) & (1<<2 | 1))
+#define OS_UNPEND(fl)   NVIC_INT_CTRL  = (*fl = OS_PENDING) << 25
+#define OS_PEND(fl,p)   NVIC_INT_CTRL  = (fl | p<<2) << 26
+#define OS_LOCK()       NVIC_ST_CTRL   =  0x0005
+#define OS_UNLOCK()     NVIC_ST_CTRL   =  0x0007
+
+#define OS_X_PENDING    ((NVIC_INT_CTRL >> 28) & 1)
+#define OS_X_UNPEND(fl) NVIC_INT_CTRL  = (*fl = OS_X_PENDING) << 27
+#define OS_X_PEND(fl,p) NVIC_INT_CTRL  = (fl | p) << 28
+#if (__TARGET_ARCH_6S_M)
+#define OS_X_INIT(n)    NVIC_IP[n>>2] |= 0xFF << (8*(n & 0x03)); \
+                        NVIC_ISER[n>>5] = 1 << (n & 0x1F)
+#else
+#define OS_X_INIT(n)    NVIC_IP[n] = 0xFF; \
+                        NVIC_ISER[n>>5] = 1 << (n & 0x1F)
+#endif
+#define OS_X_LOCK(n)    NVIC_ICER[n>>5] = 1 << (n & 0x1F)
+#define OS_X_UNLOCK(n)  NVIC_ISER[n>>5] = 1 << (n & 0x1F)
+
+/* Core Debug registers */
+#define DEMCR           (*((volatile U32 *)0xE000EDFC))
+
+/* ITM registers */
+#define ITM_CONTROL     (*((volatile U32 *)0xE0000E80))
+#define ITM_ENABLE      (*((volatile U32 *)0xE0000E00))
+#define ITM_PORT30_U32  (*((volatile U32 *)0xE0000078))
+#define ITM_PORT31_U32  (*((volatile U32 *)0xE000007C))
+#define ITM_PORT31_U16  (*((volatile U16 *)0xE000007C))
+#define ITM_PORT31_U8   (*((volatile U8  *)0xE000007C))
+
+/* Variables */
+extern BIT dbg_msg;
+
+/* Functions */
+#ifdef __USE_EXCLUSIVE_ACCESS
+ #define rt_inc(p)     while(__strex((__ldrex(p)+1),p))
+ #define rt_dec(p)     while(__strex((__ldrex(p)-1),p))
+#else
+ #define rt_inc(p)     __disable_irq();(*p)++;__enable_irq();
+ #define rt_dec(p)     __disable_irq();(*p)--;__enable_irq();
+#endif
+
+__inline static U32 rt_inc_qi (U32 size, U8 *count, U8 *first) {
+  U32 cnt,c2;
+#ifdef __USE_EXCLUSIVE_ACCESS
+  do {
+    if ((cnt = __ldrex(count)) == size) {
+      __clrex();
+      return (cnt); }
+  } while (__strex(cnt+1, count));
+  do {
+    c2 = (cnt = __ldrex(first)) + 1;
+    if (c2 == size) c2 = 0;
+  } while (__strex(c2, first));
+#else
+  __disable_irq();
+  if ((cnt = *count) < size) {
+    *count = cnt+1;
+    c2 = (cnt = *first) + 1;
+    if (c2 == size) c2 = 0;
+    *first = c2; 
+  }
+  __enable_irq ();
+#endif
+  return (cnt);
+}
+
+__inline static void rt_systick_init (void) {
+  NVIC_ST_RELOAD  = os_trv;
+  NVIC_ST_CURRENT = 0;
+  NVIC_ST_CTRL    = 0x0007;
+  NVIC_SYS_PRI3  |= 0xFF000000;
+}
+
+__inline static void rt_svc_init (void) {
+#if !(__TARGET_ARCH_6S_M)
+  int sh,prigroup;
+#endif
+  NVIC_SYS_PRI3 |= 0x00FF0000;
+#if (__TARGET_ARCH_6S_M)
+  NVIC_SYS_PRI2 |= (NVIC_SYS_PRI3<<(8+1)) & 0xFC000000;
+#else
+  sh       = 8 - __clz (~((NVIC_SYS_PRI3 << 8) & 0xFF000000));
+  prigroup = ((NVIC_AIR_CTRL >> 8) & 0x07);
+  if (prigroup >= sh) {
+    sh = prigroup + 1;
+  }
+  NVIC_SYS_PRI2 = ((0xFEFFFFFF << sh) & 0xFF000000) | (NVIC_SYS_PRI2 & 0x00FFFFFF);
+#endif
+}
+
+extern void rt_set_PSP (U32 stack);
+extern U32  rt_get_PSP (void);
+extern void os_set_env (void);
+extern void *_alloc_box (void *box_mem);
+extern int  _free_box (void *box_mem, void *box);
+
+extern void rt_init_stack (P_TCB p_TCB, FUNCP task_body);
+extern void rt_ret_val  (P_TCB p_TCB, U32 v0);
+extern void rt_ret_val2 (P_TCB p_TCB, U32 v0, U32 v1);
+
+extern void dbg_init (void);
+extern void dbg_task_notify (P_TCB p_tcb, BOOL create);
+extern void dbg_task_switch (U32 task_id);
+
+#ifdef DBG_MSG
+#define DBG_INIT() dbg_init()
+#define DBG_TASK_NOTIFY(p_tcb,create) if (dbg_msg) dbg_task_notify(p_tcb,create)
+#define DBG_TASK_SWITCH(task_id)      if (dbg_msg && (os_tsk.new_tsk != os_tsk.run)) \
+                                                   dbg_task_switch(task_id)
+#else
+#define DBG_INIT()
+#define DBG_TASK_NOTIFY(p_tcb,create)
+#define DBG_TASK_SWITCH(task_id)
+#endif
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_List.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_List.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,320 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_LIST.C
+ *      Purpose: Functions for the management of different lists
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_Time.h"
+#include "rt_HAL_CM.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+/* List head of chained ready tasks */
+struct OS_XCB  os_rdy;
+/* List head of chained delay tasks */
+struct OS_XCB  os_dly;
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_put_prio -----------------------------------*/
+
+void rt_put_prio (P_XCB p_CB, P_TCB p_task) {
+  /* Put task identified with "p_task" into list ordered by priority.       */
+  /* "p_CB" points to head of list; list has always an element at end with  */
+  /* a priority less than "p_task->prio".                                   */
+  P_TCB p_CB2;
+  U32 prio;
+  BOOL sem_mbx = __FALSE;
+
+  if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) {
+    sem_mbx = __TRUE;
+  }
+  prio = p_task->prio;
+  p_CB2 = p_CB->p_lnk;
+  /* Search for an entry in the list */
+  while (p_CB2 != NULL && prio <= p_CB2->prio) {
+    p_CB = (P_XCB)p_CB2;
+    p_CB2 = p_CB2->p_lnk;
+  }
+  /* Entry found, insert the task into the list */
+  p_task->p_lnk = p_CB2;
+  p_CB->p_lnk = p_task;
+  if (sem_mbx) {
+    if (p_CB2 != NULL) {
+      p_CB2->p_rlnk = p_task;
+    }
+    p_task->p_rlnk = (P_TCB)p_CB;
+  }
+  else {
+    p_task->p_rlnk = NULL;
+  }
+}
+
+
+/*--------------------------- rt_get_first ----------------------------------*/
+
+P_TCB rt_get_first (P_XCB p_CB) {
+  /* Get task at head of list: it is the task with highest priority. */
+  /* "p_CB" points to head of list. */
+  P_TCB p_first;
+
+  p_first = p_CB->p_lnk;
+  p_CB->p_lnk = p_first->p_lnk;
+  if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) {
+    if (p_first->p_lnk != NULL) {
+      p_first->p_lnk->p_rlnk = (P_TCB)p_CB;
+      p_first->p_lnk = NULL;
+    }
+    p_first->p_rlnk = NULL;
+  }
+  else {
+    p_first->p_lnk = NULL;
+  }
+  return (p_first);
+}
+
+
+/*--------------------------- rt_put_rdy_first ------------------------------*/
+
+void rt_put_rdy_first (P_TCB p_task) {
+  /* Put task identified with "p_task" at the head of the ready list. The   */
+  /* task must have at least a priority equal to highest priority in list.  */
+  p_task->p_lnk = os_rdy.p_lnk;
+  p_task->p_rlnk = NULL;
+  os_rdy.p_lnk = p_task;
+}
+
+
+/*--------------------------- rt_get_same_rdy_prio --------------------------*/
+
+P_TCB rt_get_same_rdy_prio (void) {
+  /* Remove a task of same priority from ready list if any exists. Other-   */
+  /* wise return NULL.                                                      */
+  P_TCB p_first;
+
+  p_first = os_rdy.p_lnk;
+  if (p_first->prio == os_tsk.run->prio) {
+    os_rdy.p_lnk = os_rdy.p_lnk->p_lnk;
+    return (p_first);
+  }
+  return (NULL);
+}
+
+
+/*--------------------------- rt_resort_prio --------------------------------*/
+
+void rt_resort_prio (P_TCB p_task) {
+  /* Re-sort ordered lists after the priority of 'p_task' has changed.      */
+  P_TCB p_CB;
+
+  if (p_task->p_rlnk == NULL) {
+    if (p_task->state == READY) {
+      /* Task is chained into READY list. */
+      p_CB = (P_TCB)&os_rdy;
+      goto res;
+    }
+  }
+  else {
+    p_CB = p_task->p_rlnk;
+    while (p_CB->cb_type == TCB) {
+      /* Find a header of this task chain list. */
+      p_CB = p_CB->p_rlnk;
+    }
+res:rt_rmv_list (p_task);
+    rt_put_prio ((P_XCB)p_CB, p_task);
+  }
+}
+
+
+/*--------------------------- rt_put_dly ------------------------------------*/
+
+void rt_put_dly (P_TCB p_task, U16 delay) {
+  /* Put a task identified with "p_task" into chained delay wait list using */
+  /* a delay value of "delay".                                              */
+  P_TCB p;
+  U32 delta,idelay = delay;
+
+  p = (P_TCB)&os_dly;
+  if (p->p_dlnk == NULL) {
+    /* Delay list empty */
+    delta = 0;
+    goto last;
+  }
+  delta = os_dly.delta_time;
+  while (delta < idelay) {
+    if (p->p_dlnk == NULL) {
+      /* End of list found */
+last: p_task->p_dlnk = NULL;
+      p->p_dlnk = p_task;
+      p_task->p_blnk = p;
+      p->delta_time = (U16)(idelay - delta);
+      p_task->delta_time = 0;
+      return;
+    }
+    p = p->p_dlnk;
+    delta += p->delta_time;
+  }
+  /* Right place found */
+  p_task->p_dlnk = p->p_dlnk;
+  p->p_dlnk = p_task;
+  p_task->p_blnk = p;
+  if (p_task->p_dlnk != NULL) {
+    p_task->p_dlnk->p_blnk = p_task;
+  }
+  p_task->delta_time = (U16)(delta - idelay);
+  p->delta_time -= p_task->delta_time;
+}
+
+
+/*--------------------------- rt_dec_dly ------------------------------------*/
+
+void rt_dec_dly (void) {
+  /* Decrement delta time of list head: remove tasks having a value of zero.*/
+  P_TCB p_rdy;
+
+  if (os_dly.p_dlnk == NULL) {
+    return;
+  }
+  os_dly.delta_time--;
+  while ((os_dly.delta_time == 0) && (os_dly.p_dlnk != NULL)) {
+    p_rdy = os_dly.p_dlnk;
+    if (p_rdy->p_rlnk != NULL) {
+      /* Task is really enqueued, remove task from semaphore/mailbox */
+      /* timeout waiting list. */
+      p_rdy->p_rlnk->p_lnk = p_rdy->p_lnk;
+      if (p_rdy->p_lnk != NULL) {
+        p_rdy->p_lnk->p_rlnk = p_rdy->p_rlnk;
+        p_rdy->p_lnk = NULL;
+      }
+      p_rdy->p_rlnk = NULL;
+    }
+    rt_put_prio (&os_rdy, p_rdy);
+    os_dly.delta_time = p_rdy->delta_time;
+    if (p_rdy->state == WAIT_ITV) {
+      /* Calculate the next time for interval wait. */
+      p_rdy->delta_time = p_rdy->interval_time + (U16)os_time;
+    }
+    p_rdy->state   = READY;
+    os_dly.p_dlnk = p_rdy->p_dlnk;
+    if (p_rdy->p_dlnk != NULL) {
+      p_rdy->p_dlnk->p_blnk =  (P_TCB)&os_dly;
+      p_rdy->p_dlnk = NULL;
+    }
+    p_rdy->p_blnk = NULL;
+  }
+}
+
+
+/*--------------------------- rt_rmv_list -----------------------------------*/
+
+void rt_rmv_list (P_TCB p_task) {
+  /* Remove task identified with "p_task" from ready, semaphore or mailbox  */
+  /* waiting list if enqueued.                                              */
+  P_TCB p_b;
+
+  if (p_task->p_rlnk != NULL) {
+    /* A task is enqueued in semaphore / mailbox waiting list. */
+    p_task->p_rlnk->p_lnk = p_task->p_lnk;
+    if (p_task->p_lnk != NULL) {
+      p_task->p_lnk->p_rlnk = p_task->p_rlnk;
+    }
+    return;
+  }
+
+  p_b = (P_TCB)&os_rdy;
+  while (p_b != NULL) {
+    /* Search the ready list for task "p_task" */
+    if (p_b->p_lnk == p_task) {
+      p_b->p_lnk = p_task->p_lnk;
+      return;
+    }
+    p_b = p_b->p_lnk;
+  }
+}
+
+
+/*--------------------------- rt_rmv_dly ------------------------------------*/
+
+void rt_rmv_dly (P_TCB p_task) {
+  /* Remove task identified with "p_task" from delay list if enqueued.      */
+  P_TCB p_b;
+
+  p_b = p_task->p_blnk;
+  if (p_b != NULL) {
+    /* Task is really enqueued */
+    p_b->p_dlnk = p_task->p_dlnk;
+    if (p_task->p_dlnk != NULL) {
+      /* 'p_task' is in the middle of list */
+      p_b->delta_time += p_task->delta_time;
+      p_task->p_dlnk->p_blnk = p_b;
+      p_task->p_dlnk = NULL;
+    }
+    else {
+      /* 'p_task' is at the end of list */
+      p_b->delta_time = 0;
+    }
+    p_task->p_blnk = NULL;
+  }
+}
+
+
+/*--------------------------- rt_psq_enq ------------------------------------*/
+
+void rt_psq_enq (OS_ID entry, U32 arg) {
+  /* Insert post service request "entry" into ps-queue. */
+  U32 idx;
+
+  idx = rt_inc_qi (os_psq->size, &os_psq->count, &os_psq->first);
+  if (idx < os_psq->size) {
+    os_psq->q[idx].id  = entry;
+    os_psq->q[idx].arg = arg;
+  }
+  else {
+    os_error (OS_ERR_FIFO_OVF);
+  }
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_List.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_List.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,67 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_LIST.H
+ *      Purpose: Functions for the management of different lists
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Definitions */
+
+/* Values for 'cb_type' */
+#define TCB             0
+#define MCB             1
+#define SCB             2
+#define MUCB            3
+#define HCB             4
+
+/* Variables */
+extern struct OS_XCB os_rdy;
+extern struct OS_XCB os_dly;
+
+/* Functions */
+extern void  rt_put_prio      (P_XCB p_CB, P_TCB p_task);
+extern P_TCB rt_get_first     (P_XCB p_CB);
+extern void  rt_put_rdy_first (P_TCB p_task);
+extern P_TCB rt_get_same_rdy_prio (void);
+extern void  rt_resort_prio   (P_TCB p_task);
+extern void  rt_put_dly       (P_TCB p_task, U16 delay);
+extern void  rt_dec_dly       (void);
+extern void  rt_rmv_list      (P_TCB p_task);
+extern void  rt_rmv_dly       (P_TCB p_task);
+extern void  rt_psq_enq       (OS_ID entry, U32 arg);
+
+/* This is a fast macro generating in-line code */
+#define rt_rdy_prio(void) (os_rdy.p_lnk->prio)
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Mailbox.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Mailbox.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,292 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MAILBOX.C
+ *      Purpose: Implements waits and wake-ups for mailbox messages
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_List.h"
+#include "rt_Mailbox.h"
+#include "rt_MemBox.h"
+#include "rt_Task.h"
+#include "rt_HAL_CM.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_mbx_init -----------------------------------*/
+
+void rt_mbx_init (OS_ID mailbox, U16 mbx_size) {
+  /* Initialize a mailbox */
+  P_MCB p_MCB = mailbox;
+
+  p_MCB->cb_type = MCB;
+  p_MCB->state   = 0;
+  p_MCB->isr_st  = 0;
+  p_MCB->p_lnk   = NULL;
+  p_MCB->first   = 0;
+  p_MCB->last    = 0;
+  p_MCB->count   = 0;
+  p_MCB->size    = (mbx_size + sizeof(void *) - sizeof(struct OS_MCB)) /
+                                                     (U32)sizeof (void *);
+}
+
+
+/*--------------------------- rt_mbx_send -----------------------------------*/
+
+OS_RESULT rt_mbx_send (OS_ID mailbox, void *p_msg, U16 timeout) {
+  /* Send message to a mailbox */
+  P_MCB p_MCB = mailbox;
+  P_TCB p_TCB;
+
+  if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 1)) {
+    /* A task is waiting for message */
+    p_TCB = rt_get_first ((P_XCB)p_MCB);
+#ifdef __CMSIS_RTOS
+    rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
+#else
+    *p_TCB->msg = p_msg;
+    rt_ret_val (p_TCB, OS_R_MBX);
+#endif
+    rt_rmv_dly (p_TCB);
+    rt_dispatch (p_TCB);
+  }
+  else {
+    /* Store message in mailbox queue */
+    if (p_MCB->count == p_MCB->size) {
+      /* No free message entry, wait for one. If message queue is full, */
+      /* then no task is waiting for message. The 'p_MCB->p_lnk' list   */
+      /* pointer can now be reused for send message waits task list.    */
+      if (timeout == 0) {
+        return (OS_R_TMO);
+      }
+      if (p_MCB->p_lnk != NULL) {
+        rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
+      }
+      else {
+        p_MCB->p_lnk = os_tsk.run;
+        os_tsk.run->p_lnk  = NULL;
+        os_tsk.run->p_rlnk = (P_TCB)p_MCB;
+        /* Task is waiting to send a message */      
+        p_MCB->state = 2;
+      }
+      os_tsk.run->msg = p_msg;
+      rt_block (timeout, WAIT_MBX);
+      return (OS_R_TMO);
+    }
+    /* Yes, there is a free entry in a mailbox. */
+    p_MCB->msg[p_MCB->first] = p_msg;
+    rt_inc (&p_MCB->count);
+    if (++p_MCB->first == p_MCB->size) {
+      p_MCB->first = 0;
+    }
+  }
+  return (OS_R_OK);
+}
+
+
+/*--------------------------- rt_mbx_wait -----------------------------------*/
+
+OS_RESULT rt_mbx_wait (OS_ID mailbox, void **message, U16 timeout) {
+  /* Receive a message; possibly wait for it */
+  P_MCB p_MCB = mailbox;
+  P_TCB p_TCB;
+
+  /* If a message is available in the fifo buffer */
+  /* remove it from the fifo buffer and return. */
+  if (p_MCB->count) {
+    *message = p_MCB->msg[p_MCB->last];
+    if (++p_MCB->last == p_MCB->size) {
+      p_MCB->last = 0;
+    }
+    if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 2)) {
+      /* A task is waiting to send message */
+      p_TCB = rt_get_first ((P_XCB)p_MCB);
+#ifdef __CMSIS_RTOS
+      rt_ret_val(p_TCB, 0/*osOK*/);
+#else
+      rt_ret_val(p_TCB, OS_R_OK);
+#endif
+      p_MCB->msg[p_MCB->first] = p_TCB->msg;
+      if (++p_MCB->first == p_MCB->size) {
+        p_MCB->first = 0;
+      }
+      rt_rmv_dly (p_TCB);
+      rt_dispatch (p_TCB);
+    }
+    else {
+      rt_dec (&p_MCB->count);
+    }
+    return (OS_R_OK);
+  }
+  /* No message available: wait for one */
+  if (timeout == 0) {
+    return (OS_R_TMO);
+  }
+  if (p_MCB->p_lnk != NULL) {
+    rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
+  }
+  else {
+    p_MCB->p_lnk = os_tsk.run;
+    os_tsk.run->p_lnk = NULL;
+    os_tsk.run->p_rlnk = (P_TCB)p_MCB;
+    /* Task is waiting to receive a message */      
+    p_MCB->state = 1;
+  }
+  rt_block(timeout, WAIT_MBX);
+#ifndef __CMSIS_RTOS
+  os_tsk.run->msg = message;
+#endif
+  return (OS_R_TMO);
+}
+
+
+/*--------------------------- rt_mbx_check ----------------------------------*/
+
+OS_RESULT rt_mbx_check (OS_ID mailbox) {
+  /* Check for free space in a mailbox. Returns the number of messages     */
+  /* that can be stored to a mailbox. It returns 0 when mailbox is full.   */
+  P_MCB p_MCB = mailbox;
+
+  return (p_MCB->size - p_MCB->count);
+}
+
+
+/*--------------------------- isr_mbx_send ----------------------------------*/
+
+void isr_mbx_send (OS_ID mailbox, void *p_msg) {
+  /* Same function as "os_mbx_send", but to be called by ISRs. */
+  P_MCB p_MCB = mailbox;
+
+  rt_psq_enq (p_MCB, (U32)p_msg);
+  rt_psh_req ();
+}
+
+
+/*--------------------------- isr_mbx_receive -------------------------------*/
+
+OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message) {
+  /* Receive a message in the interrupt function. The interrupt function   */
+  /* should not wait for a message since this would block the rtx os.      */
+  P_MCB p_MCB = mailbox;
+
+  if (p_MCB->count) {
+    /* A message is available in the fifo buffer. */
+    *message = p_MCB->msg[p_MCB->last];
+    if (p_MCB->state == 2) {
+      /* A task is locked waiting to send message */
+      rt_psq_enq (p_MCB, 0);
+      rt_psh_req ();
+    }
+    rt_dec (&p_MCB->count);
+    if (++p_MCB->last == p_MCB->size) {
+      p_MCB->last = 0;
+    }
+    return (OS_R_MBX);
+  }
+  return (OS_R_OK);
+}
+
+
+/*--------------------------- rt_mbx_psh ------------------------------------*/
+
+void rt_mbx_psh (P_MCB p_CB, void *p_msg) {
+  /* Store the message to the mailbox queue or pass it to task directly. */
+  P_TCB p_TCB;
+  void *mem;
+
+  if (p_CB->p_lnk != NULL) switch (p_CB->state) {
+#ifdef __CMSIS_RTOS
+    case 3:
+      /* Task is waiting to allocate memory, remove it from the waiting list */
+      mem = rt_alloc_box(p_msg);
+      if (mem == NULL) break;
+      p_TCB = rt_get_first ((P_XCB)p_CB);
+      rt_ret_val(p_TCB, (U32)mem);
+      p_TCB->state = READY;
+      rt_rmv_dly (p_TCB);
+      rt_put_prio (&os_rdy, p_TCB);
+      break;
+#endif
+    case 2:
+      /* Task is waiting to send a message, remove it from the waiting list */
+      p_TCB = rt_get_first ((P_XCB)p_CB);
+#ifdef __CMSIS_RTOS
+      rt_ret_val(p_TCB, 0/*osOK*/);
+#else
+      rt_ret_val(p_TCB, OS_R_OK);
+#endif
+      p_CB->msg[p_CB->first] = p_TCB->msg;
+      rt_inc (&p_CB->count);
+      if (++p_CB->first == p_CB->size) {
+        p_CB->first = 0;
+      }
+      p_TCB->state = READY;
+      rt_rmv_dly (p_TCB);
+      rt_put_prio (&os_rdy, p_TCB);
+      break;
+    case 1:
+      /* Task is waiting for a message, pass the message to the task directly */
+      p_TCB = rt_get_first ((P_XCB)p_CB);
+#ifdef __CMSIS_RTOS
+      rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
+#else
+      *p_TCB->msg = p_msg;
+      rt_ret_val (p_TCB, OS_R_MBX);
+#endif
+      p_TCB->state = READY;
+      rt_rmv_dly (p_TCB);
+      rt_put_prio (&os_rdy, p_TCB);
+      break;
+  } else {
+      /* No task is waiting for a message, store it to the mailbox queue */
+      if (p_CB->count < p_CB->size) {
+        p_CB->msg[p_CB->first] = p_msg;
+        rt_inc (&p_CB->count);
+        if (++p_CB->first == p_CB->size) {
+          p_CB->first = 0;
+        }
+      }
+      else {
+        os_error (OS_ERR_MBX_OVF);
+      }
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Mailbox.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Mailbox.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,48 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MAILBOX.H
+ *      Purpose: Implements waits and wake-ups for mailbox messages
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Functions */
+extern void      rt_mbx_init  (OS_ID mailbox, U16 mbx_size);
+extern OS_RESULT rt_mbx_send  (OS_ID mailbox, void *p_msg,    U16 timeout);
+extern OS_RESULT rt_mbx_wait  (OS_ID mailbox, void **message, U16 timeout);
+extern OS_RESULT rt_mbx_check (OS_ID mailbox);
+extern void      isr_mbx_send (OS_ID mailbox, void *p_msg);
+extern OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message);
+extern void      rt_mbx_psh   (P_MCB p_CB,    void *p_msg);
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_MemBox.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_MemBox.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,166 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MEMBOX.C
+ *      Purpose: Interface functions for fixed memory block management system
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_MemBox.h"
+#include "rt_HAL_CM.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- _init_box -------------------------------------*/
+
+int _init_box  (void *box_mem, U32 box_size, U32 blk_size) {
+  /* Initialize memory block system, returns 0 if OK, 1 if fails. */
+  void *end;
+  void *blk;
+  void *next;
+  U32  sizeof_bm;
+
+  /* Create memory structure. */
+  if (blk_size & BOX_ALIGN_8) {
+    /* Memory blocks 8-byte aligned. */ 
+    blk_size = ((blk_size & ~BOX_ALIGN_8) + 7) & ~7;
+    sizeof_bm = (sizeof (struct OS_BM) + 7) & ~7;
+  }
+  else {
+    /* Memory blocks 4-byte aligned. */
+    blk_size = (blk_size + 3) & ~3;
+    sizeof_bm = sizeof (struct OS_BM);
+  }
+  if (blk_size == 0) {
+    return (1);
+  }
+  if ((blk_size + sizeof_bm) > box_size) {
+    return (1);
+  }
+  /* Create a Memory structure. */
+  blk = ((U8 *) box_mem) + sizeof_bm;
+  ((P_BM) box_mem)->free = blk;
+  end = ((U8 *) box_mem) + box_size;
+  ((P_BM) box_mem)->end      = end;
+  ((P_BM) box_mem)->blk_size = blk_size;
+
+  /* Link all free blocks using offsets. */
+  end = ((U8 *) end) - blk_size;
+  while (1)  {
+    next = ((U8 *) blk) + blk_size;
+    if (next > end)  break;
+    *((void **)blk) = next;
+    blk = next;
+  }
+  /* end marker */
+  *((void **)blk) = 0;
+  return (0);
+}
+
+/*--------------------------- rt_alloc_box ----------------------------------*/
+
+void *rt_alloc_box (void *box_mem) {
+  /* Allocate a memory block and return start address. */
+  void **free;
+#ifndef __USE_EXCLUSIVE_ACCESS
+  int  irq_dis;
+
+  irq_dis = __disable_irq ();
+  free = ((P_BM) box_mem)->free;
+  if (free) {
+    ((P_BM) box_mem)->free = *free;
+  }
+  if (!irq_dis) __enable_irq ();
+#else
+  do {
+    if ((free = (void **)__ldrex(&((P_BM) box_mem)->free)) == 0) {
+      __clrex();
+      break;
+    }
+  } while (__strex((U32)*free, &((P_BM) box_mem)->free));
+#endif
+  return (free);
+}
+
+
+/*--------------------------- _calloc_box -----------------------------------*/
+
+void *_calloc_box (void *box_mem)  {
+  /* Allocate a 0-initialized memory block and return start address. */
+  void *free;
+  U32 *p;
+  U32 i;
+
+  free = _alloc_box (box_mem);
+  if (free)  {
+    p = free;
+    for (i = ((P_BM) box_mem)->blk_size; i; i -= 4)  {
+      *p = 0;
+      p++;
+    }
+  }
+  return (free);
+}
+
+
+/*--------------------------- rt_free_box -----------------------------------*/
+
+int rt_free_box (void *box_mem, void *box) {
+  /* Free a memory block, returns 0 if OK, 1 if box does not belong to box_mem */
+#ifndef __USE_EXCLUSIVE_ACCESS
+  int irq_dis;
+#endif
+
+  if (box < box_mem || box >= ((P_BM) box_mem)->end) {
+    return (1);
+  }
+
+#ifndef __USE_EXCLUSIVE_ACCESS
+  irq_dis = __disable_irq ();
+  *((void **)box) = ((P_BM) box_mem)->free;
+  ((P_BM) box_mem)->free = box;
+  if (!irq_dis) __enable_irq ();
+#else
+  do {
+    *((void **)box) = (void *)__ldrex(&((P_BM) box_mem)->free);
+  } while (__strex ((U32)box, &((P_BM) box_mem)->free));
+#endif
+  return (0);
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_MemBox.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_MemBox.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,46 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MEMBOX.H
+ *      Purpose: Interface functions for fixed memory block management system
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Functions */
+#define rt_init_box     _init_box
+#define rt_calloc_box   _calloc_box
+extern int     _init_box   (void *box_mem, U32 box_size, U32 blk_size);
+extern void *rt_alloc_box  (void *box_mem);
+extern void *  _calloc_box (void *box_mem);
+extern int   rt_free_box   (void *box_mem, void *box);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Mutex.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Mutex.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,197 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MUTEX.C
+ *      Purpose: Implements mutex synchronization objects
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_Mutex.h"
+#include "rt_HAL_CM.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_mut_init -----------------------------------*/
+
+void rt_mut_init (OS_ID mutex) {
+  /* Initialize a mutex object */
+  P_MUCB p_MCB = mutex;
+
+  p_MCB->cb_type = MUCB;
+  p_MCB->prio    = 0;
+  p_MCB->level   = 0;
+  p_MCB->p_lnk   = NULL;
+  p_MCB->owner   = NULL;
+}
+
+
+/*--------------------------- rt_mut_delete ---------------------------------*/
+
+#ifdef __CMSIS_RTOS
+OS_RESULT rt_mut_delete (OS_ID mutex) {
+  /* Delete a mutex object */
+  P_MUCB p_MCB = mutex;
+  P_TCB  p_TCB;
+
+  /* Restore owner task's priority. */
+  if (p_MCB->level != 0) {
+    p_MCB->owner->prio = p_MCB->prio;
+    if (p_MCB->owner != os_tsk.run) {
+      rt_resort_prio (p_MCB->owner);
+    }
+  }
+
+  while (p_MCB->p_lnk != NULL) {
+    /* A task is waiting for mutex. */
+    p_TCB = rt_get_first ((P_XCB)p_MCB);
+    rt_ret_val(p_TCB, 0/*osOK*/);
+    rt_rmv_dly(p_TCB);
+    p_TCB->state = READY;
+    rt_put_prio (&os_rdy, p_TCB);
+  }
+
+  if (os_rdy.p_lnk && (os_rdy.p_lnk->prio > os_tsk.run->prio)) {
+    /* preempt running task */
+    rt_put_prio (&os_rdy, os_tsk.run);
+    os_tsk.run->state = READY;
+    rt_dispatch (NULL);
+  }
+
+  p_MCB->cb_type = 0;
+
+  return (OS_R_OK);
+}
+#endif
+
+
+/*--------------------------- rt_mut_release --------------------------------*/
+
+OS_RESULT rt_mut_release (OS_ID mutex) {
+  /* Release a mutex object */
+  P_MUCB p_MCB = mutex;
+  P_TCB  p_TCB;
+
+  if (p_MCB->level == 0 || p_MCB->owner != os_tsk.run) {
+    /* Unbalanced mutex release or task is not the owner */
+    return (OS_R_NOK);
+  }
+  if (--p_MCB->level != 0) {
+    return (OS_R_OK);
+  }
+  /* Restore owner task's priority. */
+  os_tsk.run->prio = p_MCB->prio;
+  if (p_MCB->p_lnk != NULL) {
+    /* A task is waiting for mutex. */
+    p_TCB = rt_get_first ((P_XCB)p_MCB);
+#ifdef __CMSIS_RTOS
+    rt_ret_val(p_TCB, 0/*osOK*/);
+#else
+    rt_ret_val(p_TCB, OS_R_MUT); 
+#endif
+    rt_rmv_dly (p_TCB);
+    /* A waiting task becomes the owner of this mutex. */
+    p_MCB->level     = 1;
+    p_MCB->owner     = p_TCB;
+    p_MCB->prio      = p_TCB->prio;
+    /* Priority inversion, check which task continues. */
+    if (os_tsk.run->prio >= rt_rdy_prio()) {
+      rt_dispatch (p_TCB);
+    }
+    else {
+      /* Ready task has higher priority than running task. */
+      rt_put_prio (&os_rdy, os_tsk.run);
+      rt_put_prio (&os_rdy, p_TCB);
+      os_tsk.run->state = READY;
+      p_TCB->state      = READY;
+      rt_dispatch (NULL);
+    }
+  }
+  else {
+    /* Check if own priority raised by priority inversion. */
+    if (rt_rdy_prio() > os_tsk.run->prio) {
+      rt_put_prio (&os_rdy, os_tsk.run);
+      os_tsk.run->state = READY;
+      rt_dispatch (NULL);
+    }
+  }
+  return (OS_R_OK);
+}
+
+
+/*--------------------------- rt_mut_wait -----------------------------------*/
+
+OS_RESULT rt_mut_wait (OS_ID mutex, U16 timeout) {
+  /* Wait for a mutex, continue when mutex is free. */
+  P_MUCB p_MCB = mutex;
+
+  if (p_MCB->level == 0) {
+    p_MCB->owner = os_tsk.run;
+    p_MCB->prio  = os_tsk.run->prio;
+    goto inc;
+  }
+  if (p_MCB->owner == os_tsk.run) {
+    /* OK, running task is the owner of this mutex. */
+inc:p_MCB->level++;
+    return (OS_R_OK);
+  }
+  /* Mutex owned by another task, wait until released. */
+  if (timeout == 0) {
+    return (OS_R_TMO);
+  }
+  /* Raise the owner task priority if lower than current priority. */
+  /* This priority inversion is called priority inheritance.       */
+  if (p_MCB->prio < os_tsk.run->prio) {
+    p_MCB->owner->prio = os_tsk.run->prio;
+    rt_resort_prio (p_MCB->owner);
+  }
+  if (p_MCB->p_lnk != NULL) {
+    rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
+  }
+  else {
+    p_MCB->p_lnk = os_tsk.run;
+    os_tsk.run->p_lnk  = NULL;
+    os_tsk.run->p_rlnk = (P_TCB)p_MCB;
+  }
+  rt_block(timeout, WAIT_MUT);
+  return (OS_R_TMO);
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Mutex.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Mutex.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,44 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_MUTEX.H
+ *      Purpose: Implements mutex synchronization objects
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Functions */
+extern void      rt_mut_init    (OS_ID mutex);
+extern OS_RESULT rt_mut_delete  (OS_ID mutex);
+extern OS_RESULT rt_mut_release (OS_ID mutex);
+extern OS_RESULT rt_mut_wait    (OS_ID mutex, U16 timeout);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Robin.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Robin.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,84 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_ROBIN.C
+ *      Purpose: Round Robin Task switching
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_Time.h"
+#include "rt_Robin.h"
+#include "rt_HAL_CM.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+struct OS_ROBIN os_robin;
+
+
+/*----------------------------------------------------------------------------
+ *      Global Functions
+ *---------------------------------------------------------------------------*/
+
+/*--------------------------- rt_init_robin ---------------------------------*/
+
+__weak void rt_init_robin (void) {
+  /* Initialize Round Robin variables. */
+  os_robin.task = NULL;
+  os_robin.tout = (U16)os_rrobin;
+}
+
+/*--------------------------- rt_chk_robin ----------------------------------*/
+
+__weak void rt_chk_robin (void) {
+  /* Check if Round Robin timeout expired and switch to the next ready task.*/
+  P_TCB p_new;
+
+  if (os_robin.task != os_rdy.p_lnk) {
+    /* New task was suspended, reset Round Robin timeout. */
+    os_robin.task = os_rdy.p_lnk;
+    os_robin.time = (U16)os_time + os_robin.tout - 1;
+  }
+  if (os_robin.time == (U16)os_time) {
+    /* Round Robin timeout has expired, swap Robin tasks. */
+    os_robin.task = NULL;
+    p_new = rt_get_first (&os_rdy);
+    rt_put_prio ((P_XCB)&os_rdy, p_new);
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Robin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Robin.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,45 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_ROBIN.H
+ *      Purpose: Round Robin Task switching definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Variables */
+extern struct OS_ROBIN os_robin;
+
+/* Functions */
+extern void rt_init_robin (void);
+extern void rt_chk_robin  (void);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Semaphore.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Semaphore.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,183 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_SEMAPHORE.C
+ *      Purpose: Implements binary and counting semaphores
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_Semaphore.h"
+#include "rt_HAL_CM.h"
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_sem_init -----------------------------------*/
+
+void rt_sem_init (OS_ID semaphore, U16 token_count) {
+  /* Initialize a semaphore */
+  P_SCB p_SCB = semaphore;
+
+  p_SCB->cb_type = SCB;
+  p_SCB->p_lnk  = NULL;
+  p_SCB->tokens = token_count;
+}
+
+
+/*--------------------------- rt_sem_delete ---------------------------------*/
+
+#ifdef __CMSIS_RTOS
+OS_RESULT rt_sem_delete (OS_ID semaphore) {
+  /* Delete semaphore */
+  P_SCB p_SCB = semaphore;
+  P_TCB p_TCB;
+
+  while (p_SCB->p_lnk != NULL) {
+    /* A task is waiting for token */
+    p_TCB = rt_get_first ((P_XCB)p_SCB);
+    rt_ret_val(p_TCB, 0);
+    rt_rmv_dly(p_TCB);
+    p_TCB->state = READY;
+    rt_put_prio (&os_rdy, p_TCB);
+  }
+
+  if (os_rdy.p_lnk && (os_rdy.p_lnk->prio > os_tsk.run->prio)) {
+    /* preempt running task */
+    rt_put_prio (&os_rdy, os_tsk.run);
+    os_tsk.run->state = READY;
+    rt_dispatch (NULL);
+  }
+
+  p_SCB->cb_type = 0;
+
+  return (OS_R_OK);
+}
+#endif
+
+
+/*--------------------------- rt_sem_send -----------------------------------*/
+
+OS_RESULT rt_sem_send (OS_ID semaphore) {
+  /* Return a token to semaphore */
+  P_SCB p_SCB = semaphore;
+  P_TCB p_TCB;
+
+  if (p_SCB->p_lnk != NULL) {
+    /* A task is waiting for token */
+    p_TCB = rt_get_first ((P_XCB)p_SCB);
+#ifdef __CMSIS_RTOS
+    rt_ret_val(p_TCB, 1);
+#else
+    rt_ret_val(p_TCB, OS_R_SEM);
+#endif
+    rt_rmv_dly (p_TCB);
+    rt_dispatch (p_TCB);
+  }
+  else {
+    /* Store token. */
+    p_SCB->tokens++;
+  }
+  return (OS_R_OK);
+}
+
+
+/*--------------------------- rt_sem_wait -----------------------------------*/
+
+OS_RESULT rt_sem_wait (OS_ID semaphore, U16 timeout) {
+  /* Obtain a token; possibly wait for it */
+  P_SCB p_SCB = semaphore;
+
+  if (p_SCB->tokens) {
+    p_SCB->tokens--;
+    return (OS_R_OK);
+  }
+  /* No token available: wait for one */
+  if (timeout == 0) {
+    return (OS_R_TMO);
+  }
+  if (p_SCB->p_lnk != NULL) {
+    rt_put_prio ((P_XCB)p_SCB, os_tsk.run);
+  }
+  else {
+    p_SCB->p_lnk = os_tsk.run;
+    os_tsk.run->p_lnk = NULL;
+    os_tsk.run->p_rlnk = (P_TCB)p_SCB;
+  }
+  rt_block(timeout, WAIT_SEM);
+  return (OS_R_TMO);
+}
+
+
+/*--------------------------- isr_sem_send ----------------------------------*/
+
+void isr_sem_send (OS_ID semaphore) {
+  /* Same function as "os_sem"send", but to be called by ISRs */
+  P_SCB p_SCB = semaphore;
+
+  rt_psq_enq (p_SCB, 0);
+  rt_psh_req ();
+}
+
+
+/*--------------------------- rt_sem_psh ------------------------------------*/
+
+void rt_sem_psh (P_SCB p_CB) {
+  /* Check if task has to be waken up */
+  P_TCB p_TCB;
+
+  if (p_CB->p_lnk != NULL) {
+    /* A task is waiting for token */
+    p_TCB = rt_get_first ((P_XCB)p_CB);
+    rt_rmv_dly (p_TCB);
+    p_TCB->state   = READY;
+#ifdef __CMSIS_RTOS
+    rt_ret_val(p_TCB, 1);
+#else
+    rt_ret_val(p_TCB, OS_R_SEM);
+#endif
+    rt_put_prio (&os_rdy, p_TCB);
+  }
+  else {
+    /* Store token */
+    p_CB->tokens++;
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Semaphore.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Semaphore.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,46 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_SEMAPHORE.H
+ *      Purpose: Implements binary and counting semaphores
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Functions */
+extern void      rt_sem_init  (OS_ID semaphore, U16 token_count);
+extern OS_RESULT rt_sem_delete(OS_ID semaphore);
+extern OS_RESULT rt_sem_send  (OS_ID semaphore);
+extern OS_RESULT rt_sem_wait  (OS_ID semaphore, U16 timeout);
+extern void      isr_sem_send (OS_ID semaphore);
+extern void      rt_sem_psh (P_SCB p_CB);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_System.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_System.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,299 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_SYSTEM.C
+ *      Purpose: System Task Manager
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_Task.h"
+#include "rt_System.h"
+#include "rt_Event.h"
+#include "rt_List.h"
+#include "rt_Mailbox.h"
+#include "rt_Semaphore.h"
+#include "rt_Time.h"
+#include "rt_Robin.h"
+#include "rt_HAL_CM.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+int os_tick_irqn;
+
+/*----------------------------------------------------------------------------
+ *      Local Variables
+ *---------------------------------------------------------------------------*/
+
+static volatile BIT os_lock;
+static volatile BIT os_psh_flag;
+static          U8  pend_flags;
+
+/*----------------------------------------------------------------------------
+ *      Global Functions
+ *---------------------------------------------------------------------------*/
+
+#if defined (__CC_ARM)
+__asm void $$RTX$$version (void) {
+   /* Export a version number symbol for a version control. */
+
+                EXPORT  __RL_RTX_VER
+
+__RL_RTX_VER    EQU     0x450
+}
+#endif
+
+
+/*--------------------------- rt_suspend ------------------------------------*/
+U32 rt_suspend (void) {
+  /* Suspend OS scheduler */
+  U32 delta = 0xFFFF;
+  
+  rt_tsk_lock();
+  
+  if (os_dly.p_dlnk) {
+    delta = os_dly.delta_time;
+  }
+#ifndef __CMSIS_RTOS
+  if (os_tmr.next) {
+    if (os_tmr.tcnt < delta) delta = os_tmr.tcnt;
+  }
+#endif
+  
+  return (delta);
+}
+
+
+/*--------------------------- rt_resume -------------------------------------*/
+void rt_resume (U32 sleep_time) {
+  /* Resume OS scheduler after suspend */
+  P_TCB next;
+  U32   delta;
+
+  os_tsk.run->state = READY;
+  rt_put_rdy_first (os_tsk.run);
+
+  os_robin.task = NULL;
+
+  /* Update delays. */
+  if (os_dly.p_dlnk) {
+    delta = sleep_time;
+    if (delta >= os_dly.delta_time) {
+      delta   -= os_dly.delta_time;
+      os_time += os_dly.delta_time;
+      os_dly.delta_time = 1;
+      while (os_dly.p_dlnk) {
+        rt_dec_dly();
+        if (delta == 0) break;
+        delta--;
+        os_time++;
+      }
+    } else {
+      os_time           += delta;
+      os_dly.delta_time -= delta;
+    }
+  } else {
+    os_time += sleep_time;
+  }
+  
+#ifndef __CMSIS_RTOS
+  /* Check the user timers. */
+  if (os_tmr.next) {
+    delta = sleep_time;
+    if (delta >= os_tmr.tcnt) {
+      delta   -= os_tmr.tcnt;
+      os_tmr.tcnt = 1;
+      while (os_tmr.next) {
+        rt_tmr_tick();
+        if (delta == 0) break;
+        delta--;
+      }
+    } else {
+      os_tmr.tcnt -= delta;
+    }
+  }
+#endif
+
+  /* Switch back to highest ready task */
+  next = rt_get_first (&os_rdy);
+  rt_switch_req (next);
+
+  rt_tsk_unlock();
+}
+
+
+/*--------------------------- rt_tsk_lock -----------------------------------*/
+
+void rt_tsk_lock (void) {
+  /* Prevent task switching by locking out scheduler */
+  if (os_tick_irqn < 0) {
+    OS_LOCK();
+    os_lock = __TRUE;
+    OS_UNPEND (&pend_flags);
+  } else {
+    OS_X_LOCK(os_tick_irqn);
+    os_lock = __TRUE;
+    OS_X_UNPEND (&pend_flags);
+  }
+}
+
+
+/*--------------------------- rt_tsk_unlock ---------------------------------*/
+
+void rt_tsk_unlock (void) {
+  /* Unlock scheduler and re-enable task switching */
+  if (os_tick_irqn < 0) {
+    OS_UNLOCK();
+    os_lock = __FALSE;
+    OS_PEND (pend_flags, os_psh_flag);
+    os_psh_flag = __FALSE;
+  } else {
+    OS_X_UNLOCK(os_tick_irqn);
+    os_lock = __FALSE;
+    OS_X_PEND (pend_flags, os_psh_flag);
+    os_psh_flag = __FALSE;
+  }
+}
+
+
+/*--------------------------- rt_psh_req ------------------------------------*/
+
+void rt_psh_req (void) {
+  /* Initiate a post service handling request if required. */
+  if (os_lock == __FALSE) {
+    OS_PEND_IRQ ();
+  }
+  else {
+    os_psh_flag = __TRUE;
+  }
+}
+
+
+/*--------------------------- rt_pop_req ------------------------------------*/
+
+void rt_pop_req (void) {
+  /* Process an ISR post service requests. */
+  struct OS_XCB *p_CB;
+  P_TCB next;
+  U32  idx;
+
+  os_tsk.run->state = READY;
+  rt_put_rdy_first (os_tsk.run);
+
+  idx = os_psq->last;
+  while (os_psq->count) {
+    p_CB = os_psq->q[idx].id;
+    if (p_CB->cb_type == TCB) {
+      /* Is of TCB type */
+      rt_evt_psh ((P_TCB)p_CB, (U16)os_psq->q[idx].arg);
+    }
+    else if (p_CB->cb_type == MCB) {
+      /* Is of MCB type */
+      rt_mbx_psh ((P_MCB)p_CB, (void *)os_psq->q[idx].arg);
+    }
+    else {
+      /* Must be of SCB type */
+      rt_sem_psh ((P_SCB)p_CB);
+    }
+    if (++idx == os_psq->size) idx = 0;
+    rt_dec (&os_psq->count);
+  }
+  os_psq->last = idx;
+
+  next = rt_get_first (&os_rdy);
+  rt_switch_req (next);
+}
+
+
+/*--------------------------- os_tick_init ----------------------------------*/
+
+__weak int os_tick_init (void) {
+  /* Initialize SysTick timer as system tick timer. */
+  rt_systick_init ();
+  return (-1);  /* Return IRQ number of SysTick timer */
+}
+
+
+/*--------------------------- os_tick_irqack --------------------------------*/
+
+__weak void os_tick_irqack (void) {
+  /* Acknowledge timer interrupt. */
+}
+
+
+/*--------------------------- rt_systick ------------------------------------*/
+
+extern void sysTimerTick(void);
+
+void rt_systick (void) {
+  /* Check for system clock update, suspend running task. */
+  P_TCB next;
+
+  os_tsk.run->state = READY;
+  rt_put_rdy_first (os_tsk.run);
+
+  /* Check Round Robin timeout. */
+  rt_chk_robin ();
+
+  /* Update delays. */
+  os_time++;
+  rt_dec_dly ();
+
+  /* Check the user timers. */
+#ifdef __CMSIS_RTOS
+  sysTimerTick();
+#else
+  rt_tmr_tick ();
+#endif
+  
+  /* Switch back to highest ready task */
+  next = rt_get_first (&os_rdy);
+  rt_switch_req (next);
+}
+
+/*--------------------------- rt_stk_check ----------------------------------*/
+__weak void rt_stk_check (void) {
+    /* Check for stack overflow. */
+    if (os_tsk.run->task_id == 0x01) {
+        // TODO: For the main thread the check should be done against the main heap pointer
+    } else {
+        if ((os_tsk.run->tsk_stack < (U32)os_tsk.run->stack) ||
+            (os_tsk.run->stack[0] != MAGIC_WORD)) {
+            os_error (OS_ERR_STK_OVF);
+        }
+    }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_System.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_System.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,52 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_SYSTEM.H
+ *      Purpose: System Task Manager definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Variables */
+#define os_psq  ((P_PSQ)&os_fifo)
+extern int os_tick_irqn;
+
+/* Functions */
+extern U32  rt_suspend    (void);
+extern void rt_resume     (U32 sleep_time);
+extern void rt_tsk_lock   (void);
+extern void rt_tsk_unlock (void);
+extern void rt_psh_req    (void);
+extern void rt_pop_req    (void);
+extern void rt_systick    (void);
+extern void rt_stk_check  (void);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Task.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Task.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,339 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_TASK.C
+ *      Purpose: Task functions and system start up.
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_Task.h"
+#include "rt_List.h"
+#include "rt_MemBox.h"
+#include "rt_Robin.h"
+#include "rt_HAL_CM.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+/* Running and next task info. */
+struct OS_TSK os_tsk;
+
+/* Task Control Blocks of idle demon */
+struct OS_TCB os_idle_TCB;
+
+
+/*----------------------------------------------------------------------------
+ *      Local Functions
+ *---------------------------------------------------------------------------*/
+
+OS_TID rt_get_TID (void) {
+  U32 tid;
+
+  for (tid = 1; tid <= os_maxtaskrun; tid++) {
+    if (os_active_TCB[tid-1] == NULL) {
+      return ((OS_TID)tid);
+    }
+  }
+  return (0);
+}
+
+#if defined (__CC_ARM) && !defined (__MICROLIB)
+/*--------------------------- __user_perthread_libspace ---------------------*/
+extern void  *__libspace_start;
+
+void *__user_perthread_libspace (void) {
+  /* Provide a separate libspace for each task. */
+  if (os_tsk.run == NULL) {
+    /* RTX not running yet. */
+    return (&__libspace_start);
+  }
+  return (void *)(os_tsk.run->std_libspace);
+}
+#endif
+
+/*--------------------------- rt_init_context -------------------------------*/
+
+void rt_init_context (P_TCB p_TCB, U8 priority, FUNCP task_body) {
+  /* Initialize general part of the Task Control Block. */
+  p_TCB->cb_type = TCB;
+  p_TCB->state   = READY;
+  p_TCB->prio    = priority;
+  p_TCB->p_lnk   = NULL;
+  p_TCB->p_rlnk  = NULL;
+  p_TCB->p_dlnk  = NULL;
+  p_TCB->p_blnk  = NULL;
+  p_TCB->delta_time    = 0;
+  p_TCB->interval_time = 0;
+  p_TCB->events  = 0;
+  p_TCB->waits   = 0;
+  p_TCB->stack_frame = 0;
+
+  rt_init_stack (p_TCB, task_body);
+}
+
+
+/*--------------------------- rt_switch_req ---------------------------------*/
+
+void rt_switch_req (P_TCB p_new) {
+  /* Switch to next task (identified by "p_new"). */
+  os_tsk.new_tsk   = p_new;
+  p_new->state = RUNNING;
+  DBG_TASK_SWITCH(p_new->task_id);
+}
+
+
+/*--------------------------- rt_dispatch -----------------------------------*/
+
+void rt_dispatch (P_TCB next_TCB) {
+  /* Dispatch next task if any identified or dispatch highest ready task    */
+  /* "next_TCB" identifies a task to run or has value NULL (=no next task)  */
+  if (next_TCB == NULL) {
+    /* Running task was blocked: continue with highest ready task */
+    next_TCB = rt_get_first (&os_rdy);
+    rt_switch_req (next_TCB);
+  }
+  else {
+    /* Check which task continues */
+    if (next_TCB->prio > os_tsk.run->prio) {
+      /* preempt running task */
+      rt_put_rdy_first (os_tsk.run);
+      os_tsk.run->state = READY;
+      rt_switch_req (next_TCB);
+    }
+    else {
+      /* put next task into ready list, no task switch takes place */
+      next_TCB->state = READY;
+      rt_put_prio (&os_rdy, next_TCB);
+    }
+  }
+}
+
+
+/*--------------------------- rt_block --------------------------------------*/
+
+void rt_block (U16 timeout, U8 block_state) {
+  /* Block running task and choose next ready task.                         */
+  /* "timeout" sets a time-out value or is 0xffff (=no time-out).           */
+  /* "block_state" defines the appropriate task state */
+  P_TCB next_TCB;
+
+  if (timeout) {
+    if (timeout < 0xffff) {
+      rt_put_dly (os_tsk.run, timeout);
+    }
+    os_tsk.run->state = block_state;
+    next_TCB = rt_get_first (&os_rdy);
+    rt_switch_req (next_TCB);
+  }
+}
+
+
+/*--------------------------- rt_tsk_pass -----------------------------------*/
+
+void rt_tsk_pass (void) {
+  /* Allow tasks of same priority level to run cooperatively.*/
+  P_TCB p_new;
+
+  p_new = rt_get_same_rdy_prio();
+  if (p_new != NULL) {
+    rt_put_prio ((P_XCB)&os_rdy, os_tsk.run);
+    os_tsk.run->state = READY;
+    rt_switch_req (p_new);
+  }
+}
+
+
+/*--------------------------- rt_tsk_self -----------------------------------*/
+
+OS_TID rt_tsk_self (void) {
+  /* Return own task identifier value. */
+  if (os_tsk.run == NULL) {
+    return (0);
+  }
+  return (os_tsk.run->task_id);
+}
+
+
+/*--------------------------- rt_tsk_prio -----------------------------------*/
+
+OS_RESULT rt_tsk_prio (OS_TID task_id, U8 new_prio) {
+  /* Change execution priority of a task to "new_prio". */
+  P_TCB p_task;
+
+  if (task_id == 0) {
+    /* Change execution priority of calling task. */
+    os_tsk.run->prio = new_prio;
+run:if (rt_rdy_prio() > new_prio) {
+      rt_put_prio (&os_rdy, os_tsk.run);
+      os_tsk.run->state   = READY;
+      rt_dispatch (NULL);
+    }
+    return (OS_R_OK);
+  }
+
+  /* Find the task in the "os_active_TCB" array. */
+  if (task_id > os_maxtaskrun || os_active_TCB[task_id-1] == NULL) {
+    /* Task with "task_id" not found or not started. */
+    return (OS_R_NOK);
+  }
+  p_task = os_active_TCB[task_id-1];
+  p_task->prio = new_prio;
+  if (p_task == os_tsk.run) {
+    goto run;
+  }
+  rt_resort_prio (p_task);
+  if (p_task->state == READY) {
+    /* Task enqueued in a ready list. */
+    p_task = rt_get_first (&os_rdy);
+    rt_dispatch (p_task);
+  }
+  return (OS_R_OK);
+}
+
+/*--------------------------- rt_tsk_delete ---------------------------------*/
+
+OS_RESULT rt_tsk_delete (OS_TID task_id) {
+  /* Terminate the task identified with "task_id". */
+  P_TCB task_context;
+
+  if (task_id == 0 || task_id == os_tsk.run->task_id) {
+    /* Terminate itself. */
+    os_tsk.run->state     = INACTIVE;
+    os_tsk.run->tsk_stack = rt_get_PSP ();
+    rt_stk_check ();
+    os_active_TCB[os_tsk.run->task_id-1] = NULL;
+    
+    os_tsk.run->stack = NULL;
+    DBG_TASK_NOTIFY(os_tsk.run, __FALSE);
+    os_tsk.run = NULL;
+    rt_dispatch (NULL);
+    /* The program should never come to this point. */
+  }
+  else {
+    /* Find the task in the "os_active_TCB" array. */
+    if (task_id > os_maxtaskrun || os_active_TCB[task_id-1] == NULL) {
+      /* Task with "task_id" not found or not started. */
+      return (OS_R_NOK);
+    }
+    task_context = os_active_TCB[task_id-1];
+    rt_rmv_list (task_context);
+    rt_rmv_dly (task_context);
+    os_active_TCB[task_id-1] = NULL;
+    
+    task_context->stack = NULL;
+    DBG_TASK_NOTIFY(task_context, __FALSE);
+  }
+  return (OS_R_OK);
+}
+
+
+/*--------------------------- rt_sys_init -----------------------------------*/
+
+#ifdef __CMSIS_RTOS
+void rt_sys_init (void) {
+#else
+void rt_sys_init (FUNCP first_task, U32 prio_stksz, void *stk) {
+#endif
+  /* Initialize system and start up task declared with "first_task". */
+  U32 i;
+
+  DBG_INIT();
+
+  /* Initialize dynamic memory and task TCB pointers to NULL. */
+  for (i = 0; i < os_maxtaskrun; i++) {
+    os_active_TCB[i] = NULL;
+  }
+  
+  /* Set up TCB of idle demon */
+  os_idle_TCB.task_id = 255;
+  os_idle_TCB.priv_stack = idle_task_stack_size;
+  os_idle_TCB.stack = idle_task_stack;
+  rt_init_context (&os_idle_TCB, 0, os_idle_demon);
+
+  /* Set up ready list: initially empty */
+  os_rdy.cb_type = HCB;
+  os_rdy.p_lnk   = NULL;
+  /* Set up delay list: initially empty */
+  os_dly.cb_type = HCB;
+  os_dly.p_dlnk  = NULL;
+  os_dly.p_blnk  = NULL;
+  os_dly.delta_time = 0;
+
+  /* Fix SP and systemvariables to assume idle task is running  */
+  /* Transform main program into idle task by assuming idle TCB */
+#ifndef __CMSIS_RTOS
+  rt_set_PSP (os_idle_TCB.tsk_stack+32);
+#endif
+  os_tsk.run = &os_idle_TCB;
+  os_tsk.run->state = RUNNING;
+
+  /* Initialize ps queue */
+  os_psq->first = 0;
+  os_psq->last  = 0;
+  os_psq->size  = os_fifo_size;
+
+  rt_init_robin ();
+
+  /* Intitialize SVC and PendSV */
+  rt_svc_init ();
+
+#ifndef __CMSIS_RTOS
+  /* Intitialize and start system clock timer */
+  os_tick_irqn = os_tick_init ();
+  if (os_tick_irqn >= 0) {
+    OS_X_INIT(os_tick_irqn);
+  }
+
+  /* Start up first user task before entering the endless loop */
+  rt_tsk_create (first_task, prio_stksz, stk, NULL);
+#endif
+}
+
+
+/*--------------------------- rt_sys_start ----------------------------------*/
+
+#ifdef __CMSIS_RTOS
+void rt_sys_start (void) {
+  /* Start system */
+
+  /* Intitialize and start system clock timer */
+  os_tick_irqn = os_tick_init ();
+  if (os_tick_irqn >= 0) {
+    OS_X_INIT(os_tick_irqn);
+  }
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Task.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Task.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,73 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_TASK.H
+ *      Purpose: Task functions and system start up.
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Definitions */
+#define __CMSIS_RTOS    1
+
+/* Values for 'state'   */
+#define INACTIVE        0
+#define READY           1
+#define RUNNING         2
+#define WAIT_DLY        3
+#define WAIT_ITV        4
+#define WAIT_OR         5
+#define WAIT_AND        6
+#define WAIT_SEM        7
+#define WAIT_MBX        8
+#define WAIT_MUT        9
+
+/* Return codes */
+#define OS_R_TMO        0x01
+#define OS_R_EVT        0x02
+#define OS_R_SEM        0x03
+#define OS_R_MBX        0x04
+#define OS_R_MUT        0x05
+
+#define OS_R_OK         0x00
+#define OS_R_NOK        0xff
+
+/* Variables */
+extern struct OS_TSK os_tsk;
+extern struct OS_TCB os_idle_TCB;
+
+/* Functions */
+extern void      rt_switch_req (P_TCB p_new);
+extern void      rt_dispatch   (P_TCB next_TCB);
+extern void      rt_block      (U16 timeout, U8 block_state);
+extern void      rt_tsk_pass   (void);
+extern OS_TID    rt_tsk_self   (void);
+extern OS_RESULT rt_tsk_prio   (OS_TID task_id, U8 new_prio);
+extern OS_RESULT rt_tsk_delete (OS_TID task_id);
+extern void      rt_sys_init   (void);
+extern void      rt_sys_start  (void);
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Time.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Time.c	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,94 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_TIME.C
+ *      Purpose: Delay and interval wait functions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_Task.h"
+#include "rt_Time.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+/* Free running system tick counter */
+U32 os_time;
+
+
+/*----------------------------------------------------------------------------
+ *      Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_time_get -----------------------------------*/
+
+U32 rt_time_get (void) {
+  /* Get system time tick */
+  return (os_time);
+}
+
+
+/*--------------------------- rt_dly_wait -----------------------------------*/
+
+void rt_dly_wait (U16 delay_time) {
+  /* Delay task by "delay_time" */
+  rt_block (delay_time, WAIT_DLY);
+}
+
+
+/*--------------------------- rt_itv_set ------------------------------------*/
+
+void rt_itv_set (U16 interval_time) {
+  /* Set interval length and define start of first interval */
+  os_tsk.run->interval_time = interval_time;
+  os_tsk.run->delta_time = interval_time + (U16)os_time;
+}
+
+
+/*--------------------------- rt_itv_wait -----------------------------------*/
+
+void rt_itv_wait (void) {
+  /* Wait for interval end and define start of next one */
+  U16 delta;
+
+  delta = os_tsk.run->delta_time - (U16)os_time;
+  os_tsk.run->delta_time += os_tsk.run->interval_time;
+  if ((delta & 0x8000) == 0) {
+    rt_block (delta, WAIT_ITV);
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_Time.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_Time.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,47 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_TIME.H
+ *      Purpose: Delay and interval wait functions definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+/* Variables */
+extern U32 os_time;
+
+/* Functions */
+extern U32  rt_time_get (void);
+extern void rt_dly_wait (U16 delay_time);
+extern void rt_itv_set  (U16 interval_time);
+extern void rt_itv_wait (void);
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r 000000000000 -r fdfe93cb9255 mbed-rtos/rtx/rt_TypeDef.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos/rtx/rt_TypeDef.h	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,128 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_TYPEDEF.H
+ *      Purpose: Type Definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of ARM  nor the names of its contributors may be used 
+ *    to endorse or promote products derived from this software without 
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+#ifndef RT_TYPE_DEF_H
+#define RT_TYPE_DEF_H
+
+#include "os_tcb.h"
+
+typedef U32     OS_TID;
+typedef void    *OS_ID;
+typedef U32     OS_RESULT;
+
+#define TCB_STACKF      32        /* 'stack_frame' offset                    */
+#define TCB_TSTACK      36        /* 'tsk_stack' offset                      */
+
+typedef struct OS_PSFE {          /* Post Service Fifo Entry                 */
+  void  *id;                      /* Object Identification                   */
+  U32    arg;                     /* Object Argument                         */
+} *P_PSFE;
+
+typedef struct OS_PSQ {           /* Post Service Queue                      */
+  U8     first;                   /* FIFO Head Index                         */
+  U8     last;                    /* FIFO Tail Index                         */
+  U8     count;                   /* Number of stored items in FIFO          */
+  U8     size;                    /* FIFO Size                               */
+  struct OS_PSFE q[1];            /* FIFO Content                            */
+} *P_PSQ;
+
+typedef struct OS_TSK {
+  P_TCB  run;                     /* Current running task                    */
+  P_TCB  new_tsk;                 /* Scheduled task to run                   */
+} *P_TSK;
+
+typedef struct OS_ROBIN {         /* Round Robin Control                     */
+  P_TCB  task;                    /* Round Robin task                        */
+  U16    time;                    /* Round Robin switch time                 */
+  U16    tout;                    /* Round Robin timeout                     */
+} *P_ROBIN;
+
+typedef struct OS_XCB {
+  U8     cb_type;                 /* Control Block Type                      */
+  struct OS_TCB *p_lnk;           /* Link pointer for ready/sem. wait list   */
+  struct OS_TCB *p_rlnk;          /* Link pointer for sem./mbx lst backwards */
+  struct OS_TCB *p_dlnk;          /* Link pointer for delay list             */
+  struct OS_TCB *p_blnk;          /* Link pointer for delay list backwards   */
+  U16    delta_time;              /* Time until time out                     */
+} *P_XCB;
+
+typedef struct OS_MCB {
+  U8     cb_type;                 /* Control Block Type                      */
+  U8     state;                   /* State flag variable                     */
+  U8     isr_st;                  /* State flag variable for isr functions   */
+  struct OS_TCB *p_lnk;           /* Chain of tasks waiting for message      */
+  U16    first;                   /* Index of the message list begin         */
+  U16    last;                    /* Index of the message list end           */
+  U16    count;                   /* Actual number of stored messages        */
+  U16    size;                    /* Maximum number of stored messages       */
+  void   *msg[1];                 /* FIFO for Message pointers 1st element   */
+} *P_MCB;
+
+typedef struct OS_SCB {
+  U8     cb_type;                 /* Control Block Type                      */
+  U8     mask;                    /* Semaphore token mask                    */
+  U16    tokens;                  /* Semaphore tokens                        */
+  struct OS_TCB *p_lnk;           /* Chain of tasks waiting for tokens       */
+} *P_SCB;
+
+typedef struct OS_MUCB {
+  U8     cb_type;                 /* Control Block Type                      */
+  U8     prio;                    /* Owner task default priority             */
+  U16    level;                   /* Call nesting level                      */
+  struct OS_TCB *p_lnk;           /* Chain of tasks waiting for mutex        */
+  struct OS_TCB *owner;           /* Mutex owner task                        */
+} *P_MUCB;
+
+typedef struct OS_XTMR {
+  struct OS_TMR  *next;
+  U16    tcnt;
+} *P_XTMR;
+
+typedef struct OS_TMR {
+  struct OS_TMR  *next;           /* Link pointer to Next timer              */
+  U16    tcnt;                    /* Timer delay count                       */
+  U16    info;                    /* User defined call info                  */
+} *P_TMR;
+
+typedef struct OS_BM {
+  void *free;                     /* Pointer to first free memory block      */
+  void *end;                      /* Pointer to memory block end             */
+  U32  blk_size;                  /* Memory block size                       */
+} *P_BM;
+
+/* Definitions */
+#define __TRUE          1
+#define __FALSE         0
+#define NULL            ((void *) 0)
+
+#endif
diff -r 000000000000 -r fdfe93cb9255 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/7e6c9f46b3bd
\ No newline at end of file
diff -r 000000000000 -r fdfe93cb9255 nRF24L01P.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nRF24L01P.lib	Mon May 27 06:06:31 2013 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/pabloamr/code/nRF24L01P/#8d55f1f49a33