kolibrios/contrib/sdk/sources/libsync/m_unlock.asm
Sergey Semyonov (Serge) 1918b713af newlib: struct dirent
pixlib3: enable linear texture filtration
libsync: user space synchronization

git-svn-id: svn://kolibrios.org@5602 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-07-23 10:10:52 +00:00

27 lines
486 B
NASM

format MS COFF
use32
MUTEX.lock equ 0
MUTEX.handle equ 4
section '.text' align 16 code readable executable
public @mutex_unlock@4
@mutex_unlock@4:
xor eax, eax
xchg eax, [ecx]
cmp eax, 1
jnz .wake
ret
.wake:
push ebx
mov edx, 1
mov ecx, [ecx+MUTEX.handle]
mov ebx, 3
mov eax, 77
int 0x40
pop ebx
retn