1 /* machine description file for Sun 68000's
2 Copyright (C) 1985, 1986 Free Software Foundation, Inc.
4 This file is part of SXEmacs
6 SXEmacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 SXEmacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Synched up with: FSF 19.31. */
22 /* The following line tells the configuration script what sort of
23 operating system this machine is likely to run.
27 Sun 1, 2 and 3 (-machine=sun1, -machine=sun2, -machine=sun3;
28 -opsystem=bsd4-2 or -opsystem=sunos4)
30 Whether you should use sun1, sun2 or sun3 depends on the
31 VERSION OF THE OPERATING SYSTEM
32 you have. There are three machine types for different versions of
33 SunOS. All are derived from Berkeley 4.2, meaning that you should
34 use -opsystem=bsd4-2. Emacs 17 has run on all of them. You will
35 need to use sun3 on Sun 2's running SunOS release 3.
37 For SunOS release 4 on a Sun 3, use -machine=sun3 and
38 -opsystem=sunos4. See the file share-lib/SUNBUG for how to solve
39 problems caused by bugs in the "export" version of SunOS 4.
42 /* Say this machine is a 68000 */
46 /* Sun can't write competent compilers */
47 #define COMPILER_REGISTER_BUG
49 /* Data type of load average, as read out of kmem. */
51 #define LOAD_AVE_TYPE long
53 /* Convert that into an integer that is 100 for a load average of 1.0 */
55 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
57 /* Must use the system's termcap. It does special things. */
59 #define LIBS_TERMCAP "-ltermcap"
61 /* Mask for address bits within a memory segment */
63 #define SEGMENT_MASK (SEGSIZ - 1)