1 /* machine description file for the NCR Tower 32 running System V.2.
2 Copyright (C) 1986 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
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)
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.
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. */
21 /* Synched up with: FSF 19.31. */
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="usg5-2-2" */
27 /* Define WORD_MACHINE if addresses and such have
28 * to be corrected before they can be used as byte counts. */
30 /* #define WORD_MACHINE */
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. */
38 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
39 the bit field into an int. In other words, if bit fields
42 If you use NO_UNION_TYPE, this flag does not matter. */
44 #define EXPLICIT_SIGN_EXTEND
46 /* Data type of load average, as read out of kmem. */
48 /* #define LOAD_AVE_TYPE long */
50 /* Convert that into an integer that is 100 for a load average of 1.0 */
52 /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */
54 /* Define CANNOT_DUMP on machines where unexec does not work.
55 Then the function dump-emacs will not be defined
56 and temacs will do (load "loadup") automatically unless told otherwise. */
58 /* #define CANNOT_DUMP */
60 /* Define VIRT_ADDR_VARIES if the virtual addresses of
61 pure and impure space as loaded can vary, and even their
62 relative order cannot be relied on.
64 Otherwise Emacs assumes that text space precedes data space,
67 /* #define VIRT_ADDR_VARIES */
69 /* Define C_ALLOCA if this machine does not support a true alloca
70 and the one written in C should be used instead.
71 Define HAVE_ALLOCA to say that the system provides a properly
72 working alloca function and it should be used.
73 Define neither one if an assembler-language alloca
74 in the file alloca.s should be used. */
76 /* #define C_ALLOCA */
79 /* Change some things to avoid bugs in compiler */
81 #define SWITCH_ENUM_BUG 1
83 /* The standard C library is -lcieee, not -lc.
84 Also use the PW library, which contains alloca. */
86 #define LIB_STANDARD "-lPW -lcieee"
88 /* crt0.c should use the vax-bsd style of entry. Beware that if you have
89 OS release 2.00.00 or later, *and* change src/ymakefile so that CFLAGS
90 includes C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH, you need to
91 uncomment CRT0_DUMMIES and C_OPTIMIZE_SWITCH below. */
93 /* With the optimizer OFF */
95 #define CRT0_DUMMIES zero, bogus_fp,
97 /* With the optimizer ON */
99 /* #define CRT0_DUMMIES */
100 /* #define C_OPTIMIZE_SWITCH -O2 */
102 /* emacs's magic number isn't temacs's;
103 temacs is writable text (the default!). */
106 #define EXEC_MAGIC AOUT1MAGIC
107 #define EXEC_PAGESIZE DATACLICK