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1.1 root 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 [email protected]
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
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