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comparison src/m/plexus.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 /* machine description file for the Plexus running System V.2.
2 Copyright (C) 1986 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="usg5-2" */
26
27 /* Define WORD_MACHINE if addresses and such have
28 * to be corrected before they can be used as byte counts. */
29
30 #undef WORD_MACHINE
31
32 /* Now define a symbol for the cpu type, if your compiler
33 does not define it automatically:
34 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
35 are the ones defined so far. */
36 /* Plexus predefines m68 instead of m68000. */
37 #define m68000 m68
38
39 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
40 the bit field into an int. In other words, if bit fields
41 are always unsigned.
42
43 If you use NO_UNION_TYPE, this flag does not matter. */
44
45 #undef EXPLICIT_SIGN_EXTEND
46
47 /* Data type of load average, as read out of kmem. */
48
49 #undef LOAD_AVE_TYPE
50
51 /* Convert that into an integer that is 100 for a load average of 1.0 */
52
53 #undef LOAD_AVE_CVT
54
55 /* Define CANNOT_DUMP on machines where unexec does not work.
56 Then the function dump-emacs will not be defined
57 and temacs will do (load "loadup") automatically unless told otherwise. */
58
59 #undef CANNOT_DUMP
60
61 /* Define VIRT_ADDR_VARIES if the virtual addresses of
62 pure and impure space as loaded can vary, and even their
63 relative order cannot be relied on.
64
65 Otherwise Emacs assumes that text space precedes data space,
66 numerically. */
67
68 #undef VIRT_ADDR_VARIES
69
70 /* Define C_ALLOCA if this machine does not support a true alloca
71 and the one written in C should be used instead.
72 Define HAVE_ALLOCA to say that the system provides a properly
73 working alloca function and it should be used.
74 Define neither one if an assembler-language alloca
75 in the file alloca.s should be used. */
76
77 #undef C_ALLOCA
78 #define HAVE_ALLOCA
79
80 /* Define NO_REMAP if memory segmentation makes it not work well
81 to change the boundary between the text section and data section
82 when Emacs is dumped. If you define this, the preloaded Lisp
83 code will not be sharable; but that's better than failing completely. */
84
85 #undef NO_REMAP
86
87 /* Use the following on ld so we can use the gnu crt0
88 The plexus ld looks for start */
89 #define LD_SWITCH_MACHINE -e __start
90
91 /* Use the PW library, which contains alloca. */
92
93 #define LIB_STANDARD -lPW -lc
94
95 /* crt0.c should use the vax-bsd style of entry, with no dummy args. */
96
97 #define CRT0_DUMMIES zero1, zero2,
98
99 /* This triggers some stuff to avoid a compiler bug */
100
101 #define TAHOE_REGISTER_BUG