32 lines
649 B
ArmAsm
32 lines
649 B
ArmAsm
! cmp64*() - 64 bit compare Author: Kees J. Bot
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! 7 Dec 1995
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.sect .text
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.define _cmp64, _cmp64u, _cmp64ul
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_cmp64: ! int cmp64(u64_t i, u64_t j);
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mov ecx, esp
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cmp64: xor eax, eax
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mov edx, 4(ecx)
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sub edx, 12(ecx)
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mov edx, 8(ecx)
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sbb edx, 16(ecx)
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sbb eax, eax ! eax = - (i < j)
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mov edx, 12(ecx)
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sub edx, 4(ecx)
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mov edx, 16(ecx)
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sbb edx, 8(ecx)
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adc eax, 0 ! eax = (i > j) - (i < j)
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ret
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_cmp64u: ! int cmp64u(u64_t i, unsigned j);
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_cmp64ul: ! int cmp64ul(u64_t i, unsigned long j);
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mov ecx, esp
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push 16(ecx)
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mov 16(ecx), 0
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call cmp64
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pop 16(ecx)
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ret
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!
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! $PchId: cmp64.ack.s,v 1.2 1996/04/11 18:59:57 philip Exp $
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