diff options
Diffstat (limited to 'libc/arch-x86/string/rindex.S')
| -rw-r--r-- | libc/arch-x86/string/rindex.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libc/arch-x86/string/rindex.S b/libc/arch-x86/string/rindex.S new file mode 100644 index 0000000..0260d38 --- /dev/null +++ b/libc/arch-x86/string/rindex.S @@ -0,0 +1,29 @@ +/* $OpenBSD: rindex.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +#ifdef STRRCHR +ENTRY(strrchr) +#else +ENTRY(rindex) +#endif + pushl %ebx + movl 8(%esp),%edx + movb 12(%esp),%cl + xorl %eax,%eax /* init pointer to null */ + .align 2,0x90 +L1: + movb (%edx),%bl + cmpb %bl,%cl + jne L2 + movl %edx,%eax +L2: + incl %edx + testb %bl,%bl /* null terminator??? */ + jnz L1 + popl %ebx + ret |