48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
import stdio
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import t, c
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# ============================================================
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# c.Asm 内联汇编测试
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# ============================================================
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def asm_test() -> int:
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# 1. 简单无操作数汇编（nop + clobber）
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c.Asm("nop", op=[t.ASM_DESCR.CLOBBER_MEMORY])
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stdio.printf("asm: nop ok\n")
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# 2. 仅汇编文本无 clobber
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c.Asm("nop")
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stdio.printf("asm: nop2 ok\n")
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# 3. 多 clobber
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c.Asm("nop", op=[t.ASM_DESCR.CLOBBER_MEMORY, t.ASM_DESCR.CLOBBER_CC])
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stdio.printf("asm: multi-clobber ok\n")
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# 4. 带输入操作数的汇编（读取 CPU ID）
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# 使用 f-string 内联 c.AsmInp
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# mov eax, 输入值; nop（保持简单，不使用会产生异常的指令）
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val: int = 42
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c.Asm(f"""mov eax, {c.AsmInp(val, t.ASM_DESCR.REG_ANY)}
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nop""", op=[t.ASM_DESCR.CLOBBER_RAX])
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stdio.printf("asm: input ok val=%d\n", val)
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# 5. 带输出操作数的汇编
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# c.AsmOut 获取结果
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result: int = 0
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c.Asm(f"""mov {c.AsmOut(result, t.ASM_DESCR.OUTPUT_REG)}, 123
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nop""", op=[t.ASM_DESCR.CLOBBER_RAX])
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stdio.printf("asm: output result=%d\n", result)
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# 6. 带输入和输出操作数
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# result2 = val + 1
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result2: int = 0
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input_val: int = 10
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c.Asm(f"""mov eax, {c.AsmInp(input_val, t.ASM_DESCR.REG_ANY)}
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add eax, 1
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mov {c.AsmOut(result2, t.ASM_DESCR.OUTPUT_REG)}, eax
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nop""", op=[t.ASM_DESCR.CLOBBER_RAX])
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stdio.printf("asm: in+out result2=%d (expect 11)\n", result2)
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return 0
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