1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * The contents of this file constitute Original Code as defined in and 7 * are subject to the Apple Public Source License Version 1.1 (the 8 * "License"). You may not use this file except in compliance with the 9 * License. Please obtain a copy of the License at 10 * http://www.apple.com/publicsource and read it before using this file. 11 * 12 * This Original Code and all software distributed under the License are 13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the 17 * License for the specific language governing rights and limitations 18 * under the License. 19 * 20 * @APPLE_LICENSE_HEADER_END@ 21 */ 22/* CMU_ENDHIST */ 23/* 24 * Mach Operating System 25 * Copyright (c) 1991,1990,1989 Carnegie Mellon University 26 * All Rights Reserved. 27 * 28 * Permission to use, copy, modify and distribute this software and its 29 * documentation is hereby granted, provided that both the copyright 30 * notice and this permission notice appear in all copies of the 31 * software, derivative works or modified versions, and any portions 32 * thereof, and that both notices appear in supporting documentation. 33 * 34 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 35 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 36 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 37 * 38 * Carnegie Mellon requests users of this software to return to 39 * 40 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 41 * School of Computer Science 42 * Carnegie Mellon University 43 * Pittsburgh PA 15213-3890 44 * 45 * any improvements or extensions that they make and grant Carnegie Mellon 46 * the rights to redistribute these changes. 47 */ 48/* 49 */ 50 51/* 52 * Some inline code to speed up major block copies to and from the 53 * screen buffer. 54 * 55 * Copyright Ing. C. Olivetti & C. S.p.A. 1988, 1989. 56 * All rights reserved. 57 * 58 * orc!eugene 28 Oct 1988 59 * 60 */ 61/* 62 * Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc., 63 * Cupertino, California. 64 * 65 * All Rights Reserved 66 * 67 * Permission to use, copy, modify, and distribute this software and 68 * its documentation for any purpose and without fee is hereby 69 * granted, provided that the above copyright notice appears in all 70 * copies and that both the copyright notice and this permission notice 71 * appear in supporting documentation, and that the name of Olivetti 72 * not be used in advertising or publicity pertaining to distribution 73 * of the software without specific, written prior permission. 74 * 75 * OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 76 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 77 * IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 78 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 79 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 80 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION 81 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 82 */ 83 84/* $ Header: $ */ 85 86 87 88/* 89 * Function: kd_slmwd() 90 * 91 * This function "slams" a word (char/attr) into the screen memory using 92 * a block fill operation on the 386. 93 * 94 */ 95 96#define start 0x08(%ebp) 97#define count 0x0c(%ebp) 98#define value 0x10(%ebp) 99 100 .text 101 .align 2 102 .globl _kd_slmwd 103 104_kd_slmwd: 105 pushl %ebp 106 movl %esp, %ebp 107 pushl %edi 108 109 movl start, %edi 110 movl count, %ecx 111 movw value, %ax 112 cld 113 rep 114 stosw 115 116 popl %edi 117 leave 118 ret 119#undef start 120#undef count 121#undef value 122 123/* 124 * "slam up" 125 */ 126 127#define from 0x08(%ebp) 128#define to 0x0c(%ebp) 129#define count 0x10(%ebp) 130 .align 2 131 .globl _kd_slmscu 132 133_kd_slmscu: 134 pushl %ebp 135 movl %esp, %ebp 136 pushl %esi 137 pushl %edi 138 139 movl from, %esi 140 movl to, %edi 141 movl count, %ecx 142 cmpl %edi, %esi 143 cld 144 rep 145 movsw 146 147 popl %edi 148 popl %esi 149 leave 150 ret 151 152/* 153 * "slam down" 154 */ 155 .align 2 156 .globl _kd_slmscd 157 158_kd_slmscd: 159 pushl %ebp 160 movl %esp, %ebp 161 pushl %esi 162 pushl %edi 163 164 movl from, %esi 165 movl to, %edi 166 movl count, %ecx 167 cmpl %edi, %esi 168 std 169 rep 170 movsw 171 cld 172 173 popl %edi 174 popl %esi 175 leave 176 ret 177#undef from 178#undef to 179#undef count 180