/* $OpenBSD: index.S,v 1.4 2005/08/07 11:30:38 espie Exp $ */ /* * Written by J.T. Conklin . * Public domain. */ #include #ifdef STRCHR ENTRY(strchr) #else ENTRY(index) #endif movl 4(%esp),%eax movb 8(%esp),%cl .align 2,0x90 L1: movb (%eax),%dl cmpb %dl,%cl /* found char??? */ je L2 incl %eax testb %dl,%dl /* null terminator??? */ jnz L1 xorl %eax,%eax L2: ret