| /kernel/trunk/core/taskman.inc |
|---|
| 918,15 → 918,18 |
| align 4 |
| wait_mutex: |
| ;;Maxis use atomic bts for mutex 4.4.2009 |
| push eax |
| push ebx |
| .do_wait: |
| bts dword [ebx],0 |
| jnc .locked |
| cmp dword [ebx],0 |
| je .get_lock |
| call change_task |
| jmp .do_wait |
| .locked: |
| .get_lock: |
| mov eax, 1 |
| xchg eax, [ebx] |
| test eax, eax |
| jnz .do_wait |
| pop ebx |
| pop eax |
| ret |