#define a_cas a_cas static inline int a_cas(volatile int *p, int t, int s) { __asm__ __volatile__ ( "lock ; cmpxchg %3, %1" : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" ); return t; } #define a_swap a_swap static inline int a_swap(volatile int *p, int v) { __asm__ __volatile__( "xchg %0, %1" : "=r"(v), "=m"(*p) : "0"(v) : "memory" ); return v; } #define a_fetch_add a_fetch_add static inline int a_fetch_add(volatile int *p, int v) { __asm__ __volatile__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*p) : "0"(v) : "memory" ); return v; } #define a_and a_and static inline void a_and(volatile int *p, int v) { __asm__ __volatile__( "lock ; and %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } #define a_or a_or static inline void a_or(volatile int *p, int v) { __asm__ __volatile__( "lock ; or %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } #define a_and_64 a_and_64 static inline void a_and_64(volatile uint64_t *p, uint64_t v) { __asm__ __volatile( "lock ; and %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } #define a_or_64 a_or_64 static inline void a_or_64(volatile uint64_t *p, uint64_t v) { __asm__ __volatile__( "lock ; or %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } #define a_inc a_inc static inline void a_inc(volatile int *p) { __asm__ __volatile__( "lock ; incl %0" : "=m"(*p) : "m"(*p) : "memory" ); } #define a_dec a_dec static inline void a_dec(volatile int *p) { __asm__ __volatile__( "lock ; decl %0" : "=m"(*p) : "m"(*p) : "memory" ); } #define a_store a_store static inline void a_store(volatile int *p, int x) { __asm__ __volatile__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" ); } #define a_barrier a_barrier static inline void a_barrier() { __asm__ __volatile__( "" : : : "memory" ); } #define a_spin a_spin static inline void a_spin() { __asm__ __volatile__( "pause" : : : "memory" ); } #define a_crash a_crash static inline void a_crash() { __asm__ __volatile__( "hlt" : : : "memory" ); } #define a_ctz_64 a_ctz_64 static inline int a_ctz_64(uint64_t x) { __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) ); return x; } #define a_ctz_32 a_ctz_32 static inline int a_ctz_32(uint32_t x) { __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) ); return x; } #define a_clz_64 a_clz_64 static inline int a_clz_64(uint64_t x) { __asm__( "bsr %1,%0 ; xor $63,%0" : "=r"(x) : "r"(x) ); return x; }