| /* $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 32 | |
| .globl __memcmp, memcmp | |
| __memcmp: | |
| memcmp: | |
| cmp %o2, 0 ! IEU1 Group | |
| loop: be,pn %icc, ret_0 ! CTI | |
| nop ! IEU0 | |
| ldub [%o0], %g7 ! LSU Group | |
| ldub [%o1], %g3 ! LSU Group | |
| sub %o2, 1, %o2 ! IEU0 | |
| add %o0, 1, %o0 ! IEU1 | |
| add %o1, 1, %o1 ! IEU0 Group | |
| subcc %g7, %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 |