![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to kdasm.S CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [GnuMach] / Gnu-Mach / i386 / i386at|
Return to kdasm.S CVS log | Up to [GnuMach] / Gnu-Mach / i386 / i386at |
1.1 root 1: /*
2: * Mach Operating System
3: * Copyright (c) 1991,1990,1989 Carnegie Mellon University
4: * All Rights Reserved.
5: *
6: * Permission to use, copy, modify and distribute this software and its
7: * documentation is hereby granted, provided that both the copyright
8: * notice and this permission notice appear in all copies of the
9: * software, derivative works or modified versions, and any portions
10: * thereof, and that both notices appear in supporting documentation.
11: *
12: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15: *
16: * Carnegie Mellon requests users of this software to return to
17: *
18: * Software Distribution Coordinator or [email protected]
19: * School of Computer Science
20: * Carnegie Mellon University
21: * Pittsburgh PA 15213-3890
22: *
23: * any improvements or extensions that they make and grant Carnegie Mellon
24: * the rights to redistribute these changes.
25: */
26: /*
27: * Some inline code to speed up major block copies to and from the
28: * screen buffer.
29: *
30: * Copyright Ing. C. Olivetti & C. S.p.A. 1988, 1989.
31: * All rights reserved.
32: *
33: * orc!eugene 28 Oct 1988
34: *
35: */
36: /*
37: Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc.,
38: Cupertino, California.
39:
40: All Rights Reserved
41:
42: Permission to use, copy, modify, and distribute this software and
43: its documentation for any purpose and without fee is hereby
44: granted, provided that the above copyright notice appears in all
45: copies and that both the copyright notice and this permission notice
46: appear in supporting documentation, and that the name of Olivetti
47: not be used in advertising or publicity pertaining to distribution
48: of the software without specific, written prior permission.
49:
50: OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
51: INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
52: IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
53: CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
54: LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
55: NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
56: WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
57: */
58:
59: /* $ Header: $ */
60:
61:
62: #include <mach/machine/asm.h>
63:
64: /*
65: * Function: kd_slmwd()
66: *
67: * This function "slams" a word (char/attr) into the screen memory using
68: * a block fill operation on the 386.
69: *
70: */
71:
72: #define start 0x08(%ebp)
73: #define count 0x0c(%ebp)
74: #define value 0x10(%ebp)
75:
76: ENTRY(kd_slmwd)
77: pushl %ebp
78: movl %esp, %ebp
79: pushl %edi
80:
81: movl start, %edi
82: movl count, %ecx
83: movw value, %ax
84: cld
85: rep
86: stosw
87:
88: popl %edi
89: leave
90: ret
91: #undef start
92: #undef count
93: #undef value
94:
95: /*
96: * "slam up"
97: */
98:
99: #define from 0x08(%ebp)
100: #define to 0x0c(%ebp)
101: #define count 0x10(%ebp)
102: ENTRY(kd_slmscu)
103: pushl %ebp
104: movl %esp, %ebp
105: pushl %esi
106: pushl %edi
107:
108: movl from, %esi
109: movl to, %edi
110: movl count, %ecx
111: cmpl %edi, %esi
112: cld
113: rep
114: movsw
115:
116: popl %edi
117: popl %esi
118: leave
119: ret
120:
121: /*
122: * "slam down"
123: */
124: ENTRY(kd_slmscd)
125: pushl %ebp
126: movl %esp, %ebp
127: pushl %esi
128: pushl %edi
129:
130: movl from, %esi
131: movl to, %edi
132: movl count, %ecx
133: cmpl %edi, %esi
134: std
135: rep
136: movsw
137: cld
138:
139: popl %edi
140: popl %esi
141: leave
142: ret
143: #undef from
144: #undef to
145: #undef count
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.