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HEAD
overhaul arm atomics for new atomics framework
[musl]
/
arch
/
powerpc
/
atomic_arch.h
1
#define a_cas a_cas
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static inline int a_cas(volatile int *p, int t, int s)
3
{
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__asm__("\n"
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" sync\n"
6
"1: lwarx %0, 0, %4\n"
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" cmpw %0, %2\n"
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" bne 1f\n"
9
" stwcx. %3, 0, %4\n"
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" bne- 1b\n"
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" isync\n"
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"1: \n"
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: "=&r"(t), "+m"(*p) : "r"(t), "r"(s), "r"(p) : "cc", "memory" );
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return t;
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}