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