42 lines
1.0 KiB
Plaintext
42 lines
1.0 KiB
Plaintext
import t, c
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define ATOMIC_RELAXED = 0
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define ATOMIC_CONSUME = 1
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define ATOMIC_ACQUIRE = 2
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define ATOMIC_RELEASE = 3
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define ATOMIC_ACQ_REL = 4
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define ATOMIC_SEQ_CST = 5
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def __atomic_test_and_set(ptr: uint64*, order: int) -> bool:
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result: uint8 = 1
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c.Asm(f"""mov al, 1
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xchg byte ptr [{c.AsmInp(ptr, t.ASM_DESCR.REG_ANY)}], al
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mov $0, al""",
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out = [c.AsmOut(result, t.ASM_DESCR.OUTPUT_REG)],
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op = [t.ASM_DESCR.CLOBBER_MEMORY, t.ASM_DESCR.CLOBBER_RAX])
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return t.CBool(result)
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def __atomic_clear(ptr: uint64*, order: int):
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c.Asm(f"""mov byte ptr [{c.AsmInp(ptr, t.ASM_DESCR.REG_ANY)}], 0""",
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inp = [c.AsmInp(ptr, t.ASM_DESCR.REG_ANY)],
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op = [t.ASM_DESCR.CLOBBER_MEMORY])
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def __atomic_thread_fence(order: int):
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c.Asm("mfence", op=[t.ASM_DESCR.CLOBBER_MEMORY])
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def __atomic_signal_fence(order: int):
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pass
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def __atomic_always_lock_free(size: sizet, ptr: rawptr) -> bool:
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return True
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def __atomic_is_lock_free(size: sizet, ptr: rawptr) -> bool:
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return True
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