20 lines
385 B
ArmAsm
20 lines
385 B
ArmAsm
# expected: 0000000000000000, FFFFFFFFFFFFFFFF, 0000000000000004, 0000000000000000
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.text
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_start:
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# 0 sub
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li x1, 0
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subw x31, x0, x1
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# all bits sub + sign extension to 32 bits then 64 bits
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li x1, 1
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subw x31, x0, x1
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# simple subtraction
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li x1, 8
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li x2, 4
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subw x31, x1, x2
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# 32bits trim
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li x1, 0xFFFFFFFF00000000
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subw x31, x1, x1
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