/*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
* @APPLE_LICENSE_HEADER_END@
*/
-/*
- * 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.
- *
- */
-
-#include <architecture/i386/asm_help.h>
/*
- * bzero (void *b, size_t len)
- * write len zero bytes to the string b.
- *
- * Written by:
- * J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc.
+ * Call the comm page routine
*/
-TEXT
-LEAF(_bzero,0)
- pushl %edi
- pushl %ebx
- movl 12(%esp),%edi
- movl 16(%esp),%ecx
-
- cld /* set fill direction forward */
- xorl %eax,%eax /* set fill data to 0 */
-
- /*
- * if the string is too short, it's really not worth the overhead
- * of aligning to word boundries, etc. So we jump to a plain
- * unaligned set.
- */
- cmpl $0x0f,%ecx
- jle L1
+#define __APPLE_API_PRIVATE
+#include <machine/cpu_capabilities.h>
- movl %edi,%edx /* compute misalignment */
- negl %edx
- andl $3,%edx
- movl %ecx,%ebx
- subl %edx,%ebx
-
- movl %edx,%ecx /* zero until word aligned */
- rep
- stosb
-
- movl %ebx,%ecx /* zero by words */
- shrl $2,%ecx
- rep
- stosl
+#include <architecture/i386/asm_help.h>
- movl %ebx,%ecx
- andl $3,%ecx /* zero remainder by bytes */
-L1: rep
- stosb
+ TEXT
+ ALIGN
- popl %ebx
- popl %edi
-END(_bzero)
+LEAF(_bzero,0)
+ movl $(_COMM_PAGE_BZERO), %eax
+ jmpl %eax
projects / apple / libc.git / blobdiff