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| /* SPDX-License-Identifier: GPL-2.0 */
| /* Sparc optimized memcmp code.
| *
| * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
| * Copyright (C) 2000, 2008 David S. Miller (davem@davemloft.net)
| */
|
| #include <linux/linkage.h>
| #include <asm/asm.h>
| #include <asm/export.h>
|
| .text
| ENTRY(memcmp)
| cmp %o2, 0
| 1: BRANCH32(be, pn, 2f)
| nop
| ldub [%o0], %g7
| ldub [%o1], %g3
| sub %o2, 1, %o2
| add %o0, 1, %o0
| add %o1, 1, %o1
| subcc %g7, %g3, %g3
| BRANCH32(be, pt, 1b)
| cmp %o2, 0
| retl
| mov %g3, %o0
| 2: retl
| mov 0, %o0
| ENDPROC(memcmp)
| EXPORT_SYMBOL(memcmp)
|
|
