Jonne Valola / PokittoLib Featured

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   YATTT sd_map_test cPong SnowDemo ... more

PokittoLib

Library for programming Pokitto hardware

How to Use

  1. Import this library to online compiler (see button "import" on the right hand side
  2. DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
  3. Change My_settings.h according to your project
  4. Start coding!

mbed-pokitto/api/semihost_api.h

Committer:
Pokitto
Date:
2017-10-11
Revision:
5:ea7377f3d1af

File content as of revision 5:ea7377f3d1af:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef MBED_SEMIHOST_H
#define MBED_SEMIHOST_H

#include "device.h"
#include "toolchain.h"

#ifdef __cplusplus
extern "C" {
#endif

#if DEVICE_SEMIHOST

#ifndef __CC_ARM

#if defined(__ICCARM__)
inline int __semihost(int reason, const void *arg) {
    return __semihosting(reason, (void*)arg);
}
#else

#ifdef __thumb__
#   define AngelSWI            0xAB
#   define AngelSWIInsn        "bkpt"
#   define AngelSWIAsm          bkpt
#else
#   define AngelSWI            0x123456
#   define AngelSWIInsn        "swi"
#   define AngelSWIAsm          swi
#endif

static inline int __semihost(int reason, const void *arg) {
    int value;

    asm volatile (
       "mov r0, %1"          "\n\t"
       "mov r1, %2"          "\n\t"
       AngelSWIInsn " %a3"   "\n\t"
       "mov %0, r0"
       : "=r" (value)                                         /* output operands             */
       : "r" (reason), "r" (arg), "i" (AngelSWI)              /* input operands              */
       : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc"   /* list of clobbered registers */
    );

    return value;
}
#endif
#endif

#if DEVICE_LOCALFILESYSTEM
FILEHANDLE semihost_open(const char* name, int openmode);
int semihost_close (FILEHANDLE fh);
int semihost_read  (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
int semihost_ensure(FILEHANDLE fh);
long semihost_flen (FILEHANDLE fh);
int semihost_seek  (FILEHANDLE fh, long position);
int semihost_istty (FILEHANDLE fh);

int semihost_remove(const char *name);
int semihost_rename(const char *old_name, const char *new_name);
#endif

int semihost_uid(char *uid);
int semihost_reset(void);
int semihost_vbus(void);
int semihost_powerdown(void);
int semihost_exit(void);

int semihost_connected(void);
int semihost_disabledebug(void);

#endif

#ifdef __cplusplus
}
#endif

#endif