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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)
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