diff options
| author | jamie <jamie@FreeBSD.org> | 2010-10-19 21:32:13 +0000 |
|---|---|---|
| committer | jamie <jamie@FreeBSD.org> | 2010-10-19 21:32:13 +0000 |
| commit | 09f9c897d33c41618ada06fbbcf1a9b3812dee53 (patch) | |
| tree | af2ff90c73b266b86d086d66705c8cc92cce3b7b /lib/libc/amd64/string/memcmp.S | |
| parent | 831bbfaf753dc145ab80d1807336d4fb9ef8dffe (diff) | |
| download | FreeBSD-src-09f9c897d33c41618ada06fbbcf1a9b3812dee53.zip FreeBSD-src-09f9c897d33c41618ada06fbbcf1a9b3812dee53.tar.gz | |
A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.
Diffstat (limited to 'lib/libc/amd64/string/memcmp.S')
| -rw-r--r-- | lib/libc/amd64/string/memcmp.S | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/lib/libc/amd64/string/memcmp.S b/lib/libc/amd64/string/memcmp.S deleted file mode 100644 index a039b5b..0000000 --- a/lib/libc/amd64/string/memcmp.S +++ /dev/null @@ -1,42 +0,0 @@ -/* - * 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> -__FBSDID("$FreeBSD$"); - -#if 0 - RCSID("$NetBSD: memcmp.S,v 1.2 2003/07/26 19:24:39 salo Exp $") -#endif - -ENTRY(memcmp) - cld /* set compare direction forward */ - movq %rdx,%rcx /* compare by longs */ - shrq $3,%rcx - repe - cmpsq - jne L5 /* do we match so far? */ - - movq %rdx,%rcx /* compare remainder by bytes */ - andq $7,%rcx - repe - cmpsb - jne L6 /* do we match? */ - - xorl %eax,%eax /* we match, return zero */ - ret - -L5: movl $8,%ecx /* We know that one of the next */ - subq %rcx,%rdi /* eight pairs of bytes do not */ - subq %rcx,%rsi /* match. */ - repe - cmpsb -L6: xorl %eax,%eax /* Perform unsigned comparison */ - movb -1(%rdi),%al - xorl %edx,%edx - movb -1(%rsi),%dl - subl %edx,%eax - ret -END(memcmp) |
