Root/
| Source at commit 1293 created 12 years 8 months ago. By meklort, Remove unneeded files. Update makefiles. | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 8 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 10 | * except in compliance with the License. Please obtain a copy of the␊ |
| 11 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 12 | * this file.␊ |
| 13 | * ␊ |
| 14 | * The Original Code and all software distributed under the License are␊ |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 19 | * License for the specific language governing rights and limitations␊ |
| 20 | * under the License.␊ |
| 21 | * ␊ |
| 22 | * @APPLE_LICENSE_HEADER_END@␊ |
| 23 | */␊ |
| 24 | /* string operations */␊ |
| 25 | ␊ |
| 26 | #include "libsa.h"␊ |
| 27 | ␊ |
| 28 | void bcopy(const void * src, void * dst, size_t len)␊ |
| 29 | {␊ |
| 30 | asm volatile ( "cld \n\t"␊ |
| 31 | "movl %%ecx, %%edx \n\t"␊ |
| 32 | "shrl $2, %%ecx \n\t"␊ |
| 33 | "rep; movsl \n\t"␊ |
| 34 | "movl %%edx, %%ecx \n\t"␊ |
| 35 | "andl $3, %%ecx \n\t"␊ |
| 36 | "rep; movsb \n\t"␊ |
| 37 | :␊ |
| 38 | : "c" (len), "D" (dst), "S" (src)␊ |
| 39 | : "memory", "%edx" );␊ |
| 40 | }␊ |
| 41 | ␊ |
| 42 | /*#endif*/␊ |
| 43 | |
