diff options
Diffstat (limited to 'arch/sparc64/lib/memcmp.S')
| -rw-r--r-- | arch/sparc64/lib/memcmp.S | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/arch/sparc64/lib/memcmp.S b/arch/sparc64/lib/memcmp.S index 4c08d57c3..d34dc3d87 100644 --- a/arch/sparc64/lib/memcmp.S +++ b/arch/sparc64/lib/memcmp.S @@ -1,29 +1,28 @@ -/* $Id: memcmp.S,v 1.2 1997/04/01 03:43:18 davem Exp $ +/* $Id: memcmp.S,v 1.3 2000/03/23 07:51:08 davem Exp $ * Sparc64 optimized memcmp code. * * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * Copyright (C) 2000 David S. Miller (davem@redhat.com) */ .text - .align 4 - .globl __memcmp, memcmp + .align 32 + .globl __memcmp, memcmp __memcmp: memcmp: - brlez,pn %o2, 2f - sub %g0, %o2, %o3 - add %o0, %o2, %o0 - add %o1, %o2, %o1 - ldub [%o0 + %o3], %o4 -1: - ldub [%o1 + %o3], %o5 - sub %o4, %o5, %o4 - brnz,pn %o4, 3f - addcc %o3, 1, %o3 - bne,a,pt %xcc, 1b - ldub [%o0 + %o3], %o4 -2: - retl - clr %o0 -3: - retl - mov %o4, %o0 + cmp %o2, 0 ! IEU1 Group +loop: be,pn %icc, ret_0 ! CTI + nop ! IEU0 + ldub [%o0], %g5 ! LSU Group + ldub [%o1], %g3 ! LSU Group + sub %o2, 1, %o2 ! IEU0 + add %o0, 1, %o0 ! IEU1 + add %o1, 1, %o1 ! IEU0 Group + subcc %g5, %g3, %g3 ! IEU1 Group + be,pt %icc, loop ! CTI + cmp %o2, 0 ! IEU1 Group + +ret_n0: retl + mov %g3, %o0 +ret_0: retl + mov 0, %o0 |