Mercurial > hg > xemacs-beta

comparison src/m/sparc.h @ 428:3ecd8885ac67 r21-2-22

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
parents
children abe6d1db359e
comparison
equal deleted inserted replaced
427:0a0253eac470 428:3ecd8885ac67
1 /* machine description file for Sun 4 SPARC.
2 Copyright (C) 1987, 1994 Free Software Foundation, Inc.
3
4 This file is part of GNU Emacs.
5
6 GNU Emacs 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 2, or (at your option)
9 any later version.
10
11 GNU Emacs 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.
15
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="note"
26
27 NOTE-START
28 Use -opsystem=sunos4 for operating system version 4, and
29 -opsystem=bsd4-2 for earlier versions.
30 NOTE-END */
31
32 /* XEmacs change */
33 /* Say this machine is a sparc if we are not generating the Makefiles.
34 In that case say we are a SPARC. Otherwise people who have sparc
35 in a path will not be happy. */
36
37 #ifdef NOT_C_CODE
38 # define SPARC
39 #else
40 # ifndef sparc
41 # define sparc
42 # endif
43 #endif
44
45 /* XINT must explicitly sign-extend */
46
47 #define EXPLICIT_SIGN_EXTEND
48
49 /* Mask for address bits within a memory segment */
50
51 #define SEGMENT_MASK (SEGSIZ - 1)
52
53 #if ! defined (__NetBSD__) && ! defined (__linux__) && !defined (__OpenBSD__)
54 /* This really belongs in s/sun.h. */
55
56 /* Data type of load average, as read out of kmem. */
57
58 #define LOAD_AVE_TYPE long
59
60 /* Convert that into an integer that is 100 for a load average of 1.0 */
61
62 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
63
64 /* Say that the text segment of a.out includes the header;
65 the header actually occupies the first few bytes of the text segment
66 and is counted in hdr.a_text. */
67
68 #define A_TEXT_OFFSET(HDR) sizeof (HDR)
69
70 /* This is the offset of the executable's text, from the start of the file. */
71
72 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
73
74 #endif /* not Linux or NetBSD or OpenBSD */