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comparison src/m/amdahl.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 /* amdahl machine description file
2 Copyright (C) 1987 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 /*
24 This file for amdahl_uts created by modifying the template.h
25 by Jishnu Mukerji 3/1/87
26
27 The following line tells the configuration script what sort of
28 operating system this machine is likely to run.
29 USUAL-OPSYS="usg5-2-2"
30
31 This file works with the Amdahl uts native C compiler. The 5.2u370
32 compiler is so brain damaged that it is not even worth trying to use it.
33 */
34
35 /* Define WORD_MACHINE if addresses and such have
36 * to be corrected before they can be used as byte counts. */
37
38 #define WORD_MACHINE /* not actually used anywhere yet! */
39
40 /* Now define a symbol for the cpu type, if your compiler
41 does not define it automatically:
42 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
43 are the ones defined so far. */
44
45 /* uts gets defined automatically */
46 /* However for clarity define amdahl_uts */
47 #define amdahl_uts
48
49 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
50 the bit field into an int. In other words, if bit fields
51 are always unsigned.
52
53 If you use NO_UNION_TYPE, this flag does not matter. */
54
55 #define EXPLICIT_SIGN_EXTEND
56
57 /* Data type of load average, as read out of kmem. */
58
59 /* #define LOAD_AVE_TYPE long*/
60
61 /* Convert that into an integer that is 100 for a load average of 1.0 */
62
63 /*#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)*/
64
65 /* Define CANNOT_DUMP on machines where unexec does not work.
66 Then the function dump-emacs will not be defined
67 and temacs will do (load "loadup") automatically unless told otherwise. */
68
69 /* #define CANNOT_DUMP
70
71 /* Define VIRT_ADDR_VARIES if the virtual addresses of
72 pure and impure space as loaded can vary, and even their
73 relative order cannot be relied on.
74
75 Otherwise Emacs assumes that text space precedes data space,
76 numerically. */
77
78 /* #define VIRT_ADDR_VARIES*/
79
80 /* Define C_ALLOCA if this machine does not support a true alloca
81 and the one written in C should be used instead.
82 Define HAVE_ALLOCA to say that the system provides a properly
83 working alloca function and it should be used.
84 Define neither one if an assembler-language alloca
85 in the file alloca.s should be used. */
86
87 #define C_ALLOCA
88 /*#define HAVE_ALLOCA */
89
90 #ifdef HAVE_ALLOCA
91 #define LIB_STANDARD -lPW -lc
92 #endif
93
94 /* Define NO_REMAP if memory segmentation makes it not work well
95 to change the boundary between the text section and data section
96 when Emacs is dumped. If you define this, the preloaded Lisp
97 code will not be sharable; but that's better than failing completely. */
98
99 /*#define NO_REMAP*/
100
101 #define TERMINFO
102
103 /* The usual definition of XINT, which involves shifting, does not
104 sign-extend properly on this machine. */
105
106 #define XREALINT(i) (((sign_extend_temp=(i)) & 0x00800000) \
107 ? (sign_extend_temp | 0xFF000000) \
108 : (sign_extend_temp & 0x00FFFFFF))
109
110 #ifdef emacs /* Don't do this when making xmakefile! */
111 extern int sign_extend_temp;
112 #endif
113
114 /* The following needed to load the proper crt0.o and to get the
115 proper declaration of data_start in the #undef NO_REMAP case */
116
117 #ifndef NO_REMAP
118 #define START_FILES pre-crt0.o /lib/crt0.o
119 #endif
120
121 /* Perhaps this means that the optimizer isn't safe to use. */
122
123 #define C_OPTIMIZE_SWITCH
124
125 /* Put text and data on non-segment boundary; makes image smaller */
126
127 #define LD_SWITCH_MACHINE -N
128
129 /* When writing the 'xemacs' file, make text segment ro */
130 #define EXEC_MAGIC 0410
131
132 /* Mask for address bits within a memory segment */
133 #define SEGSIZ 0x10000 /* Should this not be defined elsewhere ? */
134 #define SEGMENT_MASK (SEGSIZ - 1)
135
136 /* Tell alloca.c which direction stack grows. */
137 #define STACK_DIRECTION -1
138
139 /* Compensate for error in signal.h. */
140 #if NSIG==19
141 #undef NSIG
142 #define NSIG 20
143 #endif