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20c428fd | 1 | /* machine description file for the NCR Tower 32 running System V.2. |
d8f6d720 | 2 | Copyright (C) 1986, 2002 Free Software Foundation, Inc. |
20c428fd JB |
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) |
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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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
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20 | |
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
20c428fd JB |
23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="usg5-2-2" */ | |
25 | ||
74d3f806 KH |
26 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
27 | is the most significant byte. */ | |
28 | ||
29 | #define WORDS_BIG_ENDIAN | |
30 | ||
20c428fd JB |
31 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
32 | * group of arguments and treat it as an array of the arguments. */ | |
33 | ||
34 | /* #define NO_ARG_ARRAY */ | |
35 | ||
36 | /* Define WORD_MACHINE if addresses and such have | |
37 | * to be corrected before they can be used as byte counts. */ | |
38 | ||
39 | /* #define WORD_MACHINE */ | |
40 | ||
20c428fd JB |
41 | /* Now define a symbol for the cpu type, if your compiler |
42 | does not define it automatically: | |
43 | vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO | |
44 | are the ones defined so far. */ | |
45 | #define m68000 | |
46 | ||
47 | /* Use type int rather than a union, to represent Lisp_Object */ | |
48 | /* This is desirable for most machines. */ | |
49 | ||
50 | #define NO_UNION_TYPE | |
51 | ||
52 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
53 | the 24-bit bit field into an int. In other words, if bit fields | |
54 | are always unsigned. | |
55 | ||
56 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
57 | ||
58 | #define EXPLICIT_SIGN_EXTEND | |
59 | ||
60 | /* Data type of load average, as read out of kmem. */ | |
61 | ||
62 | /* #define LOAD_AVE_TYPE long */ | |
63 | ||
64 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
65 | ||
66 | /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */ | |
67 | ||
68 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
69 | Then the function dump-emacs will not be defined | |
70 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
71 | ||
72 | /* #define CANNOT_DUMP */ | |
73 | ||
74 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
75 | pure and impure space as loaded can vary, and even their | |
76 | relative order cannot be relied on. | |
77 | ||
78 | Otherwise Emacs assumes that text space precedes data space, | |
79 | numerically. */ | |
80 | ||
81 | /* #define VIRT_ADDR_VARIES */ | |
82 | ||
20c428fd JB |
83 | /* Change some things to avoid bugs in compiler */ |
84 | ||
85 | #define SWITCH_ENUM_BUG 1 | |
86 | ||
87 | /* The standard C library is -lcieee, not -lc. | |
88 | Also use the PW library, which contains alloca. */ | |
89 | ||
90 | #define LIB_STANDARD -lPW -lcieee | |
91 | ||
92 | /* crt0.c should use the vax-bsd style of entry. Beware that if you have | |
93 | OS release 2.00.00 or later, *and* change src/ymakefile so that CFLAGS | |
94 | includes C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH, you need to | |
95 | uncomment CRT0_DUMMIES and C_OPTIMIZE_SWITCH below. */ | |
96 | ||
97 | /* With the optimizer OFF */ | |
98 | ||
99 | #define CRT0_DUMMIES zero, bogus_fp, | |
100 | ||
101 | /* With the optimizer ON */ | |
102 | ||
103 | /* #define CRT0_DUMMIES */ | |
104 | /* #define C_OPTIMIZE_SWITCH -O2 */ | |
105 | ||
106 | /* emacs's magic number isn't temacs's; | |
8e6208c5 | 107 | temacs is writable text (the default!). */ |
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108 | |
109 | #include <asld.h> | |
110 | #define EXEC_MAGIC AOUT1MAGIC | |
111 | #define EXEC_PAGESIZE DATACLICK |