diff options
Diffstat (limited to 'lib/libc/i386/string/strcpy.S')
| -rw-r--r-- | lib/libc/i386/string/strcpy.S | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/lib/libc/i386/string/strcpy.S b/lib/libc/i386/string/strcpy.S deleted file mode 100644 index d8e673a..0000000 --- a/lib/libc/i386/string/strcpy.S +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Copyright (c) 1993 Winning Strategies, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Winning Strategies, Inc. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software withough specific prior written permission - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $Id$ - */ - -#if defined(LIBC_RCS) && !defined(lint) - .text - .asciz "$Id$" -#endif /* LIBC_RCS and not lint */ - -#include "DEFS.h" - -/* - * strcpy (dst, src) - * copy the string src to dst. - * - * Written by: - * J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc. - */ - -/* - * I've unrolled the loop eight times: large enough to make a - * significant difference, and small enough not to totally trash the - * cashe. - */ - -ENTRY(strcpy) - movl 4(%esp),%ecx /* dst address */ - movl 8(%esp),%edx /* src address */ - pushl %ecx /* push dst address */ - - .align 2,0x90 -L1: movb (%edx),%al /* unroll loop, but not too much */ - movb %al,(%ecx) - testb %al,%al - je L2 - movb 1(%edx),%al - movb %al,1(%ecx) - testb %al,%al - je L2 - movb 2(%edx),%al - movb %al,2(%ecx) - testb %al,%al - je L2 - movb 3(%edx),%al - movb %al,3(%ecx) - testb %al,%al - je L2 - movb 4(%edx),%al - movb %al,4(%ecx) - testb %al,%al - je L2 - movb 5(%edx),%al - movb %al,5(%ecx) - testb %al,%al - je L2 - movb 6(%edx),%al - movb %al,6(%ecx) - testb %al,%al - je L2 - movb 7(%edx),%al - movb %al,7(%ecx) - addl $8,%edx - addl $8,%ecx - testb %al,%al - jne L1 -L2: popl %eax /* pop dst address */ - ret |
