30 lines
466 B
ArmAsm
30 lines
466 B
ArmAsm
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/* $OpenBSD: rindex.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */
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/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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*/
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#include <machine/asm.h>
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#ifdef STRRCHR
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ENTRY(strrchr)
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#else
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ENTRY(rindex)
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#endif
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pushl %ebx
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movl 8(%esp),%edx
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movb 12(%esp),%cl
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xorl %eax,%eax /* init pointer to null */
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.align 2,0x90
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L1:
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movb (%edx),%bl
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cmpb %bl,%cl
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jne L2
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movl %edx,%eax
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L2:
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incl %edx
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testb %bl,%bl /* null terminator??? */
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jnz L1
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popl %ebx
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ret
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