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