/* | |
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. | |
*************************************************************************** | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* | |
* The library functions not provided by libgcc for freestanding environments. | |
* The implementation of the functions in this file have made NO attempt | |
* whatsoever to be optimised! | |
*/ | |
#warning The functions in this file are very basic, and not optimised. | |
#include <stddef.h> | |
/*-----------------------------------------------------------*/ | |
void *memcpy( void *pvDest, const void *pvSource, size_t xBytes ) | |
{ | |
/* The compiler used during development seems to err unless these volatiles are | |
included at -O3 optimisation. */ | |
volatile unsigned char *pcDest = ( volatile unsigned char * ) pvDest, *pcSource = ( volatile unsigned char * ) pvSource; | |
size_t x; | |
/* Extremely crude standard library implementations in lieu of having a C | |
library. */ | |
if( pvDest != pvSource ) | |
{ | |
for( x = 0; x < xBytes; x++ ) | |
{ | |
pcDest[ x ] = pcSource[ x ]; | |
} | |
} | |
return pvDest; | |
} | |
/*-----------------------------------------------------------*/ | |
void *memset( void *pvDest, int iValue, size_t xBytes ) | |
{ | |
/* The compiler used during development seems to err unless these volatiles are | |
included at -O3 optimisation. */ | |
volatile unsigned char * volatile pcDest = ( volatile unsigned char * volatile ) pvDest; | |
volatile size_t x; | |
/* Extremely crude standard library implementations in lieu of having a C | |
library. */ | |
for( x = 0; x < xBytes; x++ ) | |
{ | |
pcDest[ x ] = ( unsigned char ) iValue; | |
} | |
return pvDest; | |
} | |
/*-----------------------------------------------------------*/ | |
int memcmp( const void *pvMem1, const void *pvMem2, unsigned long ulBytes ) | |
{ | |
const volatile unsigned char *pucMem1 = pvMem1, *pucMem2 = pvMem2; | |
register unsigned long x; | |
/* Extremely crude standard library implementations in lieu of having a C | |
library. */ | |
for( x = 0; x < ulBytes; x++ ) | |
{ | |
if( pucMem1[ x ] != pucMem2[ x ] ) | |
{ | |
break; | |
} | |
} | |
return ulBytes - x; | |
} | |
/*-----------------------------------------------------------*/ | |
int strcmp( const char *pcString1, const char *pcString2 ) | |
{ | |
volatile int iReturn, iIndex = 0; | |
/* Extremely crude standard library implementations in lieu of having a C | |
library. */ | |
while( ( pcString1[ iIndex ] != 0x00 ) && ( pcString2[ iIndex ] != 0x00 ) ) | |
{ | |
iIndex++; | |
} | |
if( ( pcString1[ iIndex ] == 0x00 ) && ( pcString2[ iIndex ] == 0x00 ) ) | |
{ | |
iReturn = 0; | |
} | |
else | |
{ | |
iReturn = ~0; | |
} | |
return iReturn; | |
} | |