1/* machine description file for Gould PowerNodes with UTX/32 2.0 and 2.1.
2   (See MACHINES for older versions.)
3
4* NOTE: If you are running a pre-release of UTX/32 2.1 you should #define
5* RELEASE2_1 in config.h. This may also be necessary with un-updated
6* official releases of 2.1
7
8   Copyright (C) 1986, 2002, 2003, 2004, 2005,
9                 2006, 2007 Free Software Foundation, Inc.
10
11This file is part of GNU Emacs.
12
13GNU Emacs is free software; you can redistribute it and/or modify
14it under the terms of the GNU General Public License as published by
15the Free Software Foundation; either version 2, or (at your option)
16any later version.
17
18GNU Emacs is distributed in the hope that it will be useful,
19but WITHOUT ANY WARRANTY; without even the implied warranty of
20MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21GNU General Public License for more details.
22
23You should have received a copy of the GNU General Public License
24along with GNU Emacs; see the file COPYING.  If not, write to
25the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
26Boston, MA 02110-1301, USA.  */
27
28
29/* The following line tells the configuration script what sort of
30   operating system this machine is likely to run.
31   USUAL-OPSYS="note"
32
33NOTE-START
34Gould Power Node (-machine=gould -opsystem=bsd4-2 or bsd4-3)
35(gould.h; s-bsd4-2.h or s-bsd4-3.h)
36
37  18.36 worked on versions 1.2 and 2.0 of the operating system.
38
39  On UTX/32 2.0, use -opsystem=bsd4-3
40
41  On UTX/32 1.2 and UTX/32S 1.0, use -opsystem=bsd4-2 and note that compiling
42  lib-src/sorted-doc tickles a compiler bug:  remove the -g flag to cc in the
43  makefile.
44
45  UTX/32 1.3 has a bug in the bcopy library routine.  Fix it by
46  #undef BSTRING in gould.h.
47
48  Version 19 incorporates support for releases 2.1 and later of UTX/32.
49  A site running a pre-release of 2.1 should #define RELEASE2_1 in config.h.
50NOTE-END */
51
52/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
53   is the most significant byte.  */
54
55#define WORDS_BIG_ENDIAN
56
57/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
58 * group of arguments and treat it as an array of the arguments.  */
59
60#define NO_ARG_ARRAY
61
62/* Define WORD_MACHINE if addresses and such have
63 * to be corrected before they can be used as byte counts.  */
64
65/* #define WORD_MACHINE */
66
67/* Now define a symbol for the cpu type, if your compiler
68   does not define it automatically */
69
70#ifndef GOULD
71#define GOULD
72#endif
73
74/* sel is an old preprocessor name on gould machines
75  - it is no longer needed and interferes with a variable in xmenu.c */
76#undef sel
77
78/* Use type int rather than a union, to represent Lisp_Object */
79/* This is desirable for most machines.  */
80
81#define NO_UNION_TYPE
82
83/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
84   the 24-bit bit field into an int.  In other words, if bit fields
85   are always unsigned.
86
87   If you use NO_UNION_TYPE, this flag does not matter.  */
88
89#define EXPLICIT_SIGN_EXTEND
90
91/* Data type of load average, as read out of kmem.  */
92
93#define LOAD_AVE_TYPE double
94
95/* Convert that into an integer that is 100 for a load average of 1.0  */
96
97#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)
98
99/* Define CANNOT_DUMP on machines where unexec does not work.
100   Then the function dump-emacs will not be defined
101   and temacs will do (load "loadup") automatically unless told otherwise.  */
102
103/* #define CANNOT_DUMP */
104
105/* Define VIRT_ADDR_VARIES if the virtual addresses of
106   pure and impure space as loaded can vary, and even their
107   relative order cannot be relied on.
108
109   Otherwise Emacs assumes that text space precedes data space,
110   numerically.  */
111
112#define VIRT_ADDR_VARIES
113
114/* No need to extend the user stack. */
115
116/* If this is a 2.1 system, COFF will be predefined by cpp. If it's */
117/* pre-2.1 COFF won't be defined, which is as it should be. */
118
119#ifdef COFF
120
121#define HEADER_INCL_IN_TEXT
122#define COFF_BSD_SYMBOLS
123
124/* Seems to be necessary with coff */
125#define NO_REMAP
126
127#ifndef GOULD_NP1
128/* gould-np1.h includes this file */
129/* keep the old value - don't skip over the headers */
130#define KEEP_OLD_TEXT_SCNPTR
131#define KEEP_OLD_PADDR
132#ifndef RELEASE2_1
133#define ADJUST_TEXTBASE
134#endif /*RELEASE2_1*/
135#endif /* GOULD_NP1 */
136
137#ifdef IN_UNEXEC
138/* make Gould NP and PN COFF look like USG COFF */
139/* PN COFF */
140#define aouthdr old_exec
141/* PN COFF doesn't have a data_start or a_dtbase field in its */
142/* optional header, so substitute a junk field */
143#define a_dtbase a_ccvers
144/* Gould COFF */
145#define magic a_magic
146#define tsize a_text
147#define dsize a_data
148#define bsize a_bss
149#define entry a_entry
150#define text_start a_txbase
151#define data_start a_dtbase
152#endif /* IN_UNEXEC */
153
154/* Define how to search all pty names.
155 * This is for UTX 2.1 and greater on PN and all NP versions. It is only
156 * accident that this happens to correspond to the same versions of UTX
157 * as COFF does, but we'll take advantage of that here.
158 */
159
160/*#define USE_PTY_PAIR*/
161
162#endif /* COFF */
163
164/* -g is sometimes broken on the Gould.  */
165
166#define C_DEBUG_SWITCH
167
168/* Comparing pointers as unsigned ints tickles a bug in older compilers.  */
169
170#define PNTR_COMPARISON_TYPE int
171
172/* The GOULD machine counts the a.out file header as part of the text.  */
173
174#define A_TEXT_OFFSET(HDR) sizeof (HDR)
175
176/* Machine-dependent action when about to dump an executable file.  */
177
178#ifndef COFF
179#define ADJUST_EXEC_HEADER   \
180  unexec_text_start = hdr.a_txbase + sizeof (hdr);
181#endif
182
183/* We use the system's crt0.o.  Somehow it avoids losing
184   with `environ' the way most standard crt0.o's do.  */
185
186#define START_FILES pre-crt0.o /lib/crt0.o
187
188/* arch-tag: 930cb9ef-f56f-4c06-aea0-5e81103bbf58
189   (do not change this comment) */
190