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20c428fd JB |
1 | /* machine description file for the NCR Tower 32 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 | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
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 GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | /* The following line tells the configuration script what sort of | |
22 | operating system this machine is likely to run. | |
23 | USUAL-OPSYS="usg5-2-2" */ | |
24 | ||
74d3f806 KH |
25 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
26 | is the most significant byte. */ | |
27 | ||
28 | #define WORDS_BIG_ENDIAN | |
29 | ||
20c428fd JB |
30 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
31 | * group of arguments and treat it as an array of the arguments. */ | |
32 | ||
33 | /* #define NO_ARG_ARRAY */ | |
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 */ | |
39 | ||
20c428fd JB |
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 | #define m68000 | |
45 | ||
46 | /* Use type int rather than a union, to represent Lisp_Object */ | |
47 | /* This is desirable for most machines. */ | |
48 | ||
49 | #define NO_UNION_TYPE | |
50 | ||
51 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
52 | the 24-bit bit field into an int. In other words, if bit fields | |
53 | are always unsigned. | |
54 | ||
55 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
56 | ||
57 | #define EXPLICIT_SIGN_EXTEND | |
58 | ||
59 | /* Data type of load average, as read out of kmem. */ | |
60 | ||
61 | /* #define LOAD_AVE_TYPE long */ | |
62 | ||
63 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
64 | ||
65 | /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */ | |
66 | ||
67 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
68 | Then the function dump-emacs will not be defined | |
69 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
70 | ||
71 | /* #define CANNOT_DUMP */ | |
72 | ||
73 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
74 | pure and impure space as loaded can vary, and even their | |
75 | relative order cannot be relied on. | |
76 | ||
77 | Otherwise Emacs assumes that text space precedes data space, | |
78 | numerically. */ | |
79 | ||
80 | /* #define VIRT_ADDR_VARIES */ | |
81 | ||
82 | /* Define C_ALLOCA if this machine does not support a true alloca | |
83 | and the one written in C should be used instead. | |
84 | Define HAVE_ALLOCA to say that the system provides a properly | |
85 | working alloca function and it should be used. | |
86 | Define neither one if an assembler-language alloca | |
87 | in the file alloca.s should be used. */ | |
88 | ||
89 | /* #define C_ALLOCA */ | |
90 | #define HAVE_ALLOCA | |
91 | ||
92 | /* Change some things to avoid bugs in compiler */ | |
93 | ||
94 | #define SWITCH_ENUM_BUG 1 | |
95 | ||
96 | /* The standard C library is -lcieee, not -lc. | |
97 | Also use the PW library, which contains alloca. */ | |
98 | ||
99 | #define LIB_STANDARD -lPW -lcieee | |
100 | ||
101 | /* crt0.c should use the vax-bsd style of entry. Beware that if you have | |
102 | OS release 2.00.00 or later, *and* change src/ymakefile so that CFLAGS | |
103 | includes C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH, you need to | |
104 | uncomment CRT0_DUMMIES and C_OPTIMIZE_SWITCH below. */ | |
105 | ||
106 | /* With the optimizer OFF */ | |
107 | ||
108 | #define CRT0_DUMMIES zero, bogus_fp, | |
109 | ||
110 | /* With the optimizer ON */ | |
111 | ||
112 | /* #define CRT0_DUMMIES */ | |
113 | /* #define C_OPTIMIZE_SWITCH -O2 */ | |
114 | ||
115 | /* emacs's magic number isn't temacs's; | |
8e6208c5 | 116 | temacs is writable text (the default!). */ |
20c428fd JB |
117 | |
118 | #include <asld.h> | |
119 | #define EXEC_MAGIC AOUT1MAGIC | |
120 | #define EXEC_PAGESIZE DATACLICK |