| / | |
| / Copyright (C) Igor Sysoev | |
| / | |
| / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, | |
| / ngx_atomic_uint_t old, ngx_atomic_uint_t set); | |
| / | |
| / the arguments are passed in %rdi, %rsi, %rdx | |
| / the result is returned in the %rax | |
| .inline ngx_atomic_cmp_set,0 | |
| movq %rsi, %rax | |
| lock | |
| cmpxchgq %rdx, (%rdi) | |
| setz %al | |
| movzbq %al, %rax | |
| .end | |
| / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, | |
| / ngx_atomic_int_t add); | |
| / | |
| / the arguments are passed in %rdi, %rsi | |
| / the result is returned in the %rax | |
| .inline ngx_atomic_fetch_add,0 | |
| movq %rsi, %rax | |
| lock | |
| xaddq %rax, (%rdi) | |
| .end |