diff options
Diffstat (limited to 'libc/arch-x86/string/strcmp.S')
| -rw-r--r-- | libc/arch-x86/string/strcmp.S | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/libc/arch-x86/string/strcmp.S b/libc/arch-x86/string/strcmp.S deleted file mode 100644 index 22ba546..0000000 --- a/libc/arch-x86/string/strcmp.S +++ /dev/null @@ -1,81 +0,0 @@ -/* $OpenBSD: strcmp.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> - -/* - * NOTE: I've unrolled the loop eight times: large enough to make a - * significant difference, and small enough not to totally trash the - * cache. - */ - -ENTRY(strcmp) - movl 0x04(%esp),%eax - movl 0x08(%esp),%edx - jmp L2 /* Jump into the loop! */ - - .align 2,0x90 -L1: incl %eax - incl %edx -L2: movb (%eax),%cl - testb %cl,%cl /* null terminator??? */ - jz L3 - cmpb %cl,(%edx) /* chars match??? */ - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - jne L3 - incl %eax - incl %edx - movb (%eax),%cl - testb %cl,%cl - jz L3 - cmpb %cl,(%edx) - je L1 - .align 2, 0x90 -L3: movzbl (%eax),%eax /* unsigned comparison */ - movzbl (%edx),%edx - subl %edx,%eax - ret |