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Code Issues Releases Activity

Also strex needs to not clobber it's register to have predictable results.

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OPReview-227
This commit is contained in:
James Cotton 2012-07-14 19:36:07 -05:00
parent fa3aa20e05
commit ce6bebceb6
1 changed files with 1 additions and 1 deletions
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2
flight/PiOS/STM32F10x/Libraries/CMSIS/Core/CM3/core_cm3.c
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@ -767,7 +767,7 @@ uint32_t __STREXW(uint32_t value, uint32_t *addr)
{
uint32_t result=0;
__ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
__ASM volatile ("strex %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
return(result);
}