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29 lines
622 B
ArmAsm
29 lines
622 B
ArmAsm
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/* $Id: memcmp.S,v 1.3 2000/03/23 07:51:08 davem Exp $
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* Sparc64 optimized memcmp code.
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*
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* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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* Copyright (C) 2000 David S. Miller (davem@redhat.com)
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*/
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.text
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.align 32
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.globl __memcmp, memcmp
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__memcmp:
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memcmp:
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cmp %o2, 0 ! IEU1 Group
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loop: be,pn %icc, ret_0 ! CTI
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nop ! IEU0
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ldub [%o0], %g7 ! LSU Group
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ldub [%o1], %g3 ! LSU Group
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sub %o2, 1, %o2 ! IEU0
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add %o0, 1, %o0 ! IEU1
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add %o1, 1, %o1 ! IEU0 Group
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subcc %g7, %g3, %g3 ! IEU1 Group
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be,pt %icc, loop ! CTI
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cmp %o2, 0 ! IEU1 Group
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ret_n0: retl
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mov %g3, %o0
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ret_0: retl
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mov 0, %o0
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