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Revision 1.1, Tue Mar 4 16:15:12 2008 UTC (16 years, 6 months ago) by nbrk
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/* * Written by J.T. Conklin <jtc@netbsd.org>. * Public domain. * Adapted for NetBSD/x86_64 by Frank van der Linden <fvdl@wasabisystems.com> */ #include <machine/asm.h> #if defined(LIBC_SCCS) RCSID("$NetBSD: index.S,v 1.1 2001/06/19 00:22:46 fvdl Exp $") #endif #ifdef STRCHR ENTRY(strchr) #else ENTRY(index) #endif movq %rdi,%rax movb %sil,%cl L1: movb (%rax),%dl cmpb %dl,%cl /* found char? */ je L2 incq %rax testb %dl,%dl /* null terminator? */ jnz L1 xorq %rax,%rax L2: ret