55 lines
1.4 KiB
ArmAsm
55 lines
1.4 KiB
ArmAsm
.text
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_start:
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li x2, 0xdead00000 # +59774074880
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li x3, 0 # zero
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li x4, 1 # one
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li x5, 123456789 # small positive
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li x6, 0xdead00000 # duplicate of x2
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li x7, 765432000000 # large positive
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li x8, 123456789 # small positive
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li x9, 234567890000 # large positive
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li x10, 0xffffffffffffffff # max positive 64b
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li x11, 0x8000000000000000 # min unsigned = 2^63
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# --------------------------------------------------------------
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# 1. MULHU : a * 0
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mulhu x31, x2, x3
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# expected: 0000000000000000
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# 2. MULHU : a * 1
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mulhu x31, x2, x4
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# expected: 0000000000000000
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# 3. MULHU : a * a
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mulhu x31, x2, x6
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# expected: 00000000000000c1
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# 4. MULHU : small * small
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mulhu x31, x5, x8
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# expected: 0000000000000000
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# 5. MULHU : small * large
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mulhu x31, x5, x7
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# expected: 0000000000000005
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# 6. MULHU : large * small
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mulhu x31, x7, x8
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# expected: 0000000000000005
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# 7. MULHU : large * large
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mulhu x31, x7, x9
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# expected: 0000000000002605
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# 8. MULHU : max * 2
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li x12, 2
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mulhu x31, x10, x12
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# expected: 0000000000000001
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# 9. MULHU : max * max
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mulhu x31, x10, x10
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# expected: fffffffffffffffe
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# 10. MULHU : min * max
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mulhu x31, x11, x10
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# expected: 7fffffffffffffff
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