FMF-ART
lib
Fork of
mbed-dev
by 
mbed official
Diff: targets/cmsis/core_cmInstr.h
- Revision:
- 19:112740acecfa
- Parent:
- 0:9b334a45a8ff
- Child:
- 144:ef7eb2e8f9f7
--- a/targets/cmsis/core_cmInstr.h Mon Nov 09 13:30:11 2015 +0000
+++ b/targets/cmsis/core_cmInstr.h Tue Nov 10 09:30:11 2015 +0000
@@ -1,13 +1,13 @@
/**************************************************************************//**
* @file core_cmInstr.h
* @brief CMSIS Cortex-M Core Instruction Access Header File
- * @version V3.20
- * @date 05. March 2013
+ * @version V4.10
+ * @date 18. March 2015
*
* @note
*
******************************************************************************/
-/* Copyright (c) 2009 - 2013 ARM LIMITED
+/* Copyright (c) 2009 - 2014 ARM LIMITED
All rights reserved.
Redistribution and use in source and binary forms, with or without
@@ -89,24 +89,33 @@
so that all instructions following the ISB are fetched from cache or
memory, after the instruction has been completed.
*/
-#define __ISB() __isb(0xF)
-
+#define __ISB() do {\
+ __schedule_barrier();\
+ __isb(0xF);\
+ __schedule_barrier();\
+ } while (0)
/** \brief Data Synchronization Barrier
This function acts as a special kind of Data Memory Barrier.
It completes when all explicit memory accesses before this instruction complete.
*/
-#define __DSB() __dsb(0xF)
-
+#define __DSB() do {\
+ __schedule_barrier();\
+ __dsb(0xF);\
+ __schedule_barrier();\
+ } while (0)
/** \brief Data Memory Barrier
This function ensures the apparent order of the explicit memory operations before
and after the instruction, without ensuring their completion.
*/
-#define __DMB() __dmb(0xF)
-
+#define __DMB() do {\
+ __schedule_barrier();\
+ __dmb(0xF);\
+ __schedule_barrier();\
+ } while (0)
/** \brief Reverse byte order (32 bit)
@@ -171,8 +180,6 @@
#define __BKPT(value) __breakpoint(value)
-#if (__CORTEX_M >= 0x03)
-
/** \brief Reverse bit order of value
This function reverses the bit order of the given value.
@@ -180,12 +187,42 @@
\param [in] value Value to reverse
\return Reversed value
*/
-#define __RBIT __rbit
+#if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
+ #define __RBIT __rbit
+#else
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
+{
+ uint32_t result;
+ int32_t s = 4 /*sizeof(v)*/ * 8 - 1; // extra shift needed at end
+ result = value; // r will be reversed bits of v; first get LSB of v
+ for (value >>= 1; value; value >>= 1)
+ {
+ result <<= 1;
+ result |= value & 1;
+ s--;
+ }
+ result <<= s; // shift when v's highest bits are zero
+ return(result);
+}
+#endif
+
+
+/** \brief Count leading zeros
+
+ This function counts the number of leading zeros of a data value.
+
+ \param [in] value Value to count the leading zeros
+ \return number of leading zeros in value
+ */
+#define __CLZ __clz
+
+
+#if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
/** \brief LDR Exclusive (8 bit)
- This function performs a exclusive LDR command for 8 bit value.
+ This function executes a exclusive LDR instruction for 8 bit value.
\param [in] ptr Pointer to data
\return value of type uint8_t at (*ptr)
@@ -195,7 +232,7 @@
/** \brief LDR Exclusive (16 bit)
- This function performs a exclusive LDR command for 16 bit values.
+ This function executes a exclusive LDR instruction for 16 bit values.
\param [in] ptr Pointer to data
\return value of type uint16_t at (*ptr)
@@ -205,7 +242,7 @@
/** \brief LDR Exclusive (32 bit)
- This function performs a exclusive LDR command for 32 bit values.
+ This function executes a exclusive LDR instruction for 32 bit values.
\param [in] ptr Pointer to data
\return value of type uint32_t at (*ptr)
@@ -215,7 +252,7 @@
/** \brief STR Exclusive (8 bit)
- This function performs a exclusive STR command for 8 bit values.
+ This function executes a exclusive STR instruction for 8 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
@@ -227,7 +264,7 @@
/** \brief STR Exclusive (16 bit)
- This function performs a exclusive STR command for 16 bit values.
+ This function executes a exclusive STR instruction for 16 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
@@ -239,7 +276,7 @@
/** \brief STR Exclusive (32 bit)
- This function performs a exclusive STR command for 32 bit values.
+ This function executes a exclusive STR instruction for 32 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
@@ -279,29 +316,83 @@
#define __USAT __usat
-/** \brief Count leading zeros
+/** \brief Rotate Right with Extend (32 bit)
+
+ This function moves each bit of a bitstring right by one bit.
+ The carry input is shifted in at the left end of the bitstring.
- This function counts the number of leading zeros of a data value.
+ \param [in] value Value to rotate
+ \return Rotated value
+ */
+#ifndef __NO_EMBEDDED_ASM
+__attribute__((section(".rrx_text"))) __STATIC_INLINE __ASM uint32_t __RRX(uint32_t value)
+{
+ rrx r0, r0
+ bx lr
+}
+#endif
+
- \param [in] value Value to count the leading zeros
- \return number of leading zeros in value
+/** \brief LDRT Unprivileged (8 bit)
+
+ This function executes a Unprivileged LDRT instruction for 8 bit value.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint8_t at (*ptr)
*/
-#define __CLZ __clz
+#define __LDRBT(ptr) ((uint8_t ) __ldrt(ptr))
+
+
+/** \brief LDRT Unprivileged (16 bit)
-#endif /* (__CORTEX_M >= 0x03) */
+ This function executes a Unprivileged LDRT instruction for 16 bit values.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint16_t at (*ptr)
+ */
+#define __LDRHT(ptr) ((uint16_t) __ldrt(ptr))
+/** \brief LDRT Unprivileged (32 bit)
-#elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
-/* IAR iccarm specific functions */
+ This function executes a Unprivileged LDRT instruction for 32 bit values.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint32_t at (*ptr)
+ */
+#define __LDRT(ptr) ((uint32_t ) __ldrt(ptr))
+
-#include <cmsis_iar.h>
+/** \brief STRT Unprivileged (8 bit)
+
+ This function executes a Unprivileged STRT instruction for 8 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+#define __STRBT(value, ptr) __strt(value, ptr)
-#elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
-/* TI CCS specific functions */
+/** \brief STRT Unprivileged (16 bit)
+
+ This function executes a Unprivileged STRT instruction for 16 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+#define __STRHT(value, ptr) __strt(value, ptr)
+
-#include <cmsis_ccs.h>
+/** \brief STRT Unprivileged (32 bit)
+
+ This function executes a Unprivileged STRT instruction for 32 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+#define __STRT(value, ptr) __strt(value, ptr)
+
+#endif /* (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300) */
#elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
@@ -322,7 +413,7 @@
No Operation does nothing. This instruction can be used for code alignment purposes.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __NOP(void)
+__attribute__((always_inline)) __STATIC_INLINE void __NOP(void)
{
__ASM volatile ("nop");
}
@@ -333,7 +424,7 @@
Wait For Interrupt is a hint instruction that suspends execution
until one of a number of events occurs.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __WFI(void)
+__attribute__((always_inline)) __STATIC_INLINE void __WFI(void)
{
__ASM volatile ("wfi");
}
@@ -344,7 +435,7 @@
Wait For Event is a hint instruction that permits the processor to enter
a low-power state until one of a number of events occurs.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __WFE(void)
+__attribute__((always_inline)) __STATIC_INLINE void __WFE(void)
{
__ASM volatile ("wfe");
}
@@ -354,7 +445,7 @@
Send Event is a hint instruction. It causes an event to be signaled to the CPU.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __SEV(void)
+__attribute__((always_inline)) __STATIC_INLINE void __SEV(void)
{
__ASM volatile ("sev");
}
@@ -366,9 +457,9 @@
so that all instructions following the ISB are fetched from cache or
memory, after the instruction has been completed.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __ISB(void)
+__attribute__((always_inline)) __STATIC_INLINE void __ISB(void)
{
- __ASM volatile ("isb");
+ __ASM volatile ("isb 0xF":::"memory");
}
@@ -377,9 +468,9 @@
This function acts as a special kind of Data Memory Barrier.
It completes when all explicit memory accesses before this instruction complete.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __DSB(void)
+__attribute__((always_inline)) __STATIC_INLINE void __DSB(void)
{
- __ASM volatile ("dsb");
+ __ASM volatile ("dsb 0xF":::"memory");
}
@@ -388,9 +479,9 @@
This function ensures the apparent order of the explicit memory operations before
and after the instruction, without ensuring their completion.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __DMB(void)
+__attribute__((always_inline)) __STATIC_INLINE void __DMB(void)
{
- __ASM volatile ("dmb");
+ __ASM volatile ("dmb 0xF":::"memory");
}
@@ -401,7 +492,7 @@
\param [in] value Value to reverse
\return Reversed value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV(uint32_t value)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __REV(uint32_t value)
{
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
return __builtin_bswap32(value);
@@ -421,7 +512,7 @@
\param [in] value Value to reverse
\return Reversed value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __REV16(uint32_t value)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __REV16(uint32_t value)
{
uint32_t result;
@@ -437,7 +528,7 @@
\param [in] value Value to reverse
\return Reversed value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE int32_t __REVSH(int32_t value)
+__attribute__((always_inline)) __STATIC_INLINE int32_t __REVSH(int32_t value)
{
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
return (short)__builtin_bswap16(value);
@@ -458,9 +549,9 @@
\param [in] value Number of Bits to rotate
\return Rotated value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __ROR(uint32_t op1, uint32_t op2)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __ROR(uint32_t op1, uint32_t op2)
{
- return (op1 >> op2) | (op1 << (32 - op2));
+ return (op1 >> op2) | (op1 << (32 - op2));
}
@@ -475,8 +566,6 @@
#define __BKPT(value) __ASM volatile ("bkpt "#value)
-#if (__CORTEX_M >= 0x03)
-
/** \brief Reverse bit order of value
This function reverses the bit order of the given value.
@@ -484,23 +573,48 @@
\param [in] value Value to reverse
\return Reversed value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __RBIT(uint32_t value)
{
uint32_t result;
+#if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
__ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
- return(result);
+#else
+ int32_t s = 4 /*sizeof(v)*/ * 8 - 1; // extra shift needed at end
+
+ result = value; // r will be reversed bits of v; first get LSB of v
+ for (value >>= 1; value; value >>= 1)
+ {
+ result <<= 1;
+ result |= value & 1;
+ s--;
+ }
+ result <<= s; // shift when v's highest bits are zero
+#endif
+ return(result);
}
+/** \brief Count leading zeros
+
+ This function counts the number of leading zeros of a data value.
+
+ \param [in] value Value to count the leading zeros
+ \return number of leading zeros in value
+ */
+#define __CLZ __builtin_clz
+
+
+#if (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300)
+
/** \brief LDR Exclusive (8 bit)
- This function performs a exclusive LDR command for 8 bit value.
+ This function executes a exclusive LDR instruction for 8 bit value.
\param [in] ptr Pointer to data
\return value of type uint8_t at (*ptr)
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __LDREXB(volatile uint8_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint8_t __LDREXB(volatile uint8_t *addr)
{
uint32_t result;
@@ -512,18 +626,18 @@
*/
__ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
#endif
- return(result);
+ return ((uint8_t) result); /* Add explicit type cast here */
}
/** \brief LDR Exclusive (16 bit)
- This function performs a exclusive LDR command for 16 bit values.
+ This function executes a exclusive LDR instruction for 16 bit values.
\param [in] ptr Pointer to data
\return value of type uint16_t at (*ptr)
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint16_t __LDREXH(volatile uint16_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint16_t __LDREXH(volatile uint16_t *addr)
{
uint32_t result;
@@ -535,18 +649,18 @@
*/
__ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
#endif
- return(result);
+ return ((uint16_t) result); /* Add explicit type cast here */
}
/** \brief LDR Exclusive (32 bit)
- This function performs a exclusive LDR command for 32 bit values.
+ This function executes a exclusive LDR instruction for 32 bit values.
\param [in] ptr Pointer to data
\return value of type uint32_t at (*ptr)
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __LDREXW(volatile uint32_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __LDREXW(volatile uint32_t *addr)
{
uint32_t result;
@@ -557,50 +671,50 @@
/** \brief STR Exclusive (8 bit)
- This function performs a exclusive STR command for 8 bit values.
+ This function executes a exclusive STR instruction for 8 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr)
{
uint32_t result;
- __ASM volatile ("strexb %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
+ __ASM volatile ("strexb %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" ((uint32_t)value) );
return(result);
}
/** \brief STR Exclusive (16 bit)
- This function performs a exclusive STR command for 16 bit values.
+ This function executes a exclusive STR instruction for 16 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr)
{
uint32_t result;
- __ASM volatile ("strexh %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
+ __ASM volatile ("strexh %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" ((uint32_t)value) );
return(result);
}
/** \brief STR Exclusive (32 bit)
- This function performs a exclusive STR command for 32 bit values.
+ This function executes a exclusive STR instruction for 32 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr)
{
uint32_t result;
@@ -614,7 +728,7 @@
This function removes the exclusive lock which is created by LDREX.
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE void __CLREX(void)
+__attribute__((always_inline)) __STATIC_INLINE void __CLREX(void)
{
__ASM volatile ("clrex" ::: "memory");
}
@@ -652,35 +766,149 @@
})
-/** \brief Count leading zeros
+/** \brief Rotate Right with Extend (32 bit)
- This function counts the number of leading zeros of a data value.
+ This function moves each bit of a bitstring right by one bit.
+ The carry input is shifted in at the left end of the bitstring.
- \param [in] value Value to count the leading zeros
- \return number of leading zeros in value
+ \param [in] value Value to rotate
+ \return Rotated value
*/
-__attribute__( ( always_inline ) ) __STATIC_INLINE uint8_t __CLZ(uint32_t value)
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __RRX(uint32_t value)
{
- uint32_t result;
+ uint32_t result;
- __ASM volatile ("clz %0, %1" : "=r" (result) : "r" (value) );
+ __ASM volatile ("rrx %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
return(result);
}
-#endif /* (__CORTEX_M >= 0x03) */
+
+/** \brief LDRT Unprivileged (8 bit)
+
+ This function executes a Unprivileged LDRT instruction for 8 bit value.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint8_t at (*ptr)
+ */
+__attribute__((always_inline)) __STATIC_INLINE uint8_t __LDRBT(volatile uint8_t *addr)
+{
+ uint32_t result;
+
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
+ __ASM volatile ("ldrbt %0, %1" : "=r" (result) : "Q" (*addr) );
+#else
+ /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
+ accepted by assembler. So has to use following less efficient pattern.
+ */
+ __ASM volatile ("ldrbt %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
+#endif
+ return ((uint8_t) result); /* Add explicit type cast here */
+}
+
+
+/** \brief LDRT Unprivileged (16 bit)
+
+ This function executes a Unprivileged LDRT instruction for 16 bit values.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint16_t at (*ptr)
+ */
+__attribute__((always_inline)) __STATIC_INLINE uint16_t __LDRHT(volatile uint16_t *addr)
+{
+ uint32_t result;
+
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
+ __ASM volatile ("ldrht %0, %1" : "=r" (result) : "Q" (*addr) );
+#else
+ /* Prior to GCC 4.8, "Q" will be expanded to [rx, #0] which is not
+ accepted by assembler. So has to use following less efficient pattern.
+ */
+ __ASM volatile ("ldrht %0, [%1]" : "=r" (result) : "r" (addr) : "memory" );
+#endif
+ return ((uint16_t) result); /* Add explicit type cast here */
+}
+/** \brief LDRT Unprivileged (32 bit)
+
+ This function executes a Unprivileged LDRT instruction for 32 bit values.
+
+ \param [in] ptr Pointer to data
+ \return value of type uint32_t at (*ptr)
+ */
+__attribute__((always_inline)) __STATIC_INLINE uint32_t __LDRT(volatile uint32_t *addr)
+{
+ uint32_t result;
+
+ __ASM volatile ("ldrt %0, %1" : "=r" (result) : "Q" (*addr) );
+ return(result);
+}
+
+
+/** \brief STRT Unprivileged (8 bit)
+
+ This function executes a Unprivileged STRT instruction for 8 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+__attribute__((always_inline)) __STATIC_INLINE void __STRBT(uint8_t value, volatile uint8_t *addr)
+{
+ __ASM volatile ("strbt %1, %0" : "=Q" (*addr) : "r" ((uint32_t)value) );
+}
+
+
+/** \brief STRT Unprivileged (16 bit)
+
+ This function executes a Unprivileged STRT instruction for 16 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+__attribute__((always_inline)) __STATIC_INLINE void __STRHT(uint16_t value, volatile uint16_t *addr)
+{
+ __ASM volatile ("strht %1, %0" : "=Q" (*addr) : "r" ((uint32_t)value) );
+}
+
+
+/** \brief STRT Unprivileged (32 bit)
+
+ This function executes a Unprivileged STRT instruction for 32 bit values.
+
+ \param [in] value Value to store
+ \param [in] ptr Pointer to location
+ */
+__attribute__((always_inline)) __STATIC_INLINE void __STRT(uint32_t value, volatile uint32_t *addr)
+{
+ __ASM volatile ("strt %1, %0" : "=Q" (*addr) : "r" (value) );
+}
+
+#endif /* (__CORTEX_M >= 0x03) || (__CORTEX_SC >= 300) */
+
+
+#elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
+/* IAR iccarm specific functions */
+#include <cmsis_iar.h>
+
+
+#elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
+/* TI CCS specific functions */
+#include <cmsis_ccs.h>
#elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
/* TASKING carm specific functions */
-
/*
* The CMSIS functions have been implemented as intrinsics in the compiler.
* Please use "carm -?i" to get an up to date list of all intrinsics,
* Including the CMSIS ones.
*/
+
+#elif defined ( __CSMC__ ) /*------------------ COSMIC Compiler -------------------*/
+/* Cosmic specific functions */
+#include <cmsis_csm.h>
+
#endif
/*@}*/ /* end of group CMSIS_Core_InstructionInterface */