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- #include "textflag.h"
- // static inline void a_or_64(volatile uint64_t *p, uint64_t v)
- TEXT ·a_or_64(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL v+4(FP), AX
- LOCK
- ORL AX, 0(BX)
- MOVL v+8(FP), AX
- LOCK
- ORL AX, 4(BX)
- RET
- // static inline void a_and_64(volatile uint64_t *p, uint64_t v)
- TEXT ·a_and_64(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL v+4(FP), AX
- LOCK
- ANDL AX, 0(BX)
- MOVL v+8(FP), AX
- LOCK
- ANDL AX, 4(BX)
- RET
- // static inline int a_cas(volatile int *p, int t, int s)
- TEXT ·a_cas(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL t+4(FP), AX
- MOVL s+8(FP), CX
- LOCK
- CMPXCHGL CX, 0(BX)
- MOVL AX, ret+12(FP)
- RET
- // static inline void a_barrier()
- TEXT ·a_barrier(SB),NOSPLIT,$0
- MFENCE
- RET
- // #define a_crash a_crash
- // static inline void a_crash()
- // {
- // __asm__ __volatile__( "hlt" : : : "memory" );
- // }
- TEXT ·a_crash(SB),NOSPLIT,$0
- HLT
- // static inline void *a_cas_p(volatile void *p, void *t, void *s)
- TEXT ·a_cas_p(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL t+4(FP), AX
- MOVL s+8(FP), CX
- LOCK
- CMPXCHGL CX, 0(BX)
- MOVL AX, ret+12(FP)
- RET
- // static inline void a_or(volatile int *p, int v)
- TEXT ·a_or(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL v+4(FP), AX
- LOCK
- ORL AX, 0(BX)
- RET
- // static inline int a_fetch_add(volatile int *p, int v)
- TEXT ·a_fetch_add(SB),NOSPLIT,$0
- MOVL p+0(FP), BX
- MOVL v+4(FP), AX
- LOCK
- XADDL AX, 0(BX)
- RET
- // static inline void a_spin()
- TEXT ·a_spin(SB),NOSPLIT,$0
- PAUSE
- RET
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