| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Sparc64 optimized strncmp code. |
| 4 | * |
| 5 | * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| 6 | */ |
| 7 | |
| 8 | #include <linux/linkage.h> |
| 9 | #include <asm/asi.h> |
| 10 | #include <asm/export.h> |
| 11 | |
| 12 | .text |
| 13 | ENTRY(strncmp) |
| 14 | brlez,pn %o2, 3f |
| 15 | lduba [%o0] (ASI_PNF), %o3 |
| 16 | 1: |
| 17 | add %o0, 1, %o0 |
| 18 | ldub [%o1], %o4 |
| 19 | brz,pn %o3, 2f |
| 20 | add %o1, 1, %o1 |
| 21 | cmp %o3, %o4 |
| 22 | bne,pn %icc, 2f |
| 23 | subcc %o2, 1, %o2 |
| 24 | bne,a,pt %xcc, 1b |
| 25 | ldub [%o0], %o3 |
| 26 | 2: |
| 27 | retl |
| 28 | sub %o3, %o4, %o0 |
| 29 | 3: |
| 30 | retl |
| 31 | clr %o0 |
| 32 | ENDPROC(strncmp) |
| 33 | EXPORT_SYMBOL(strncmp) |