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20c428fd JB |
1 | /* machine description file for the NCR Tower 32 running System V.3. |
2 | Copyright (C) 1986 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
4a6fd0de JB |
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 | ||
20c428fd | 11 | GNU Emacs is distributed in the hope that it will be useful, |
4a6fd0de JB |
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. */ | |
4a6fd0de | 20 | |
20c428fd JB |
21 | |
22 | ||
23 | /* The following line tells the configuration script what sort of | |
24 | operating system this machine is likely to run. | |
25 | USUAL-OPSYS="usg5-3" */ | |
26 | ||
74d3f806 KH |
27 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
28 | is the most significant byte. */ | |
29 | ||
30 | #define WORDS_BIG_ENDIAN | |
31 | ||
20c428fd JB |
32 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
33 | * group of arguments and treat it as an array of the arguments. */ | |
34 | ||
35 | /* #define NO_ARG_ARRAY */ | |
36 | ||
37 | /* Define WORD_MACHINE if addresses and such have | |
38 | * to be corrected before they can be used as byte counts. */ | |
39 | ||
40 | /* #define WORD_MACHINE */ | |
41 | ||
20c428fd JB |
42 | /* Now define a symbol for the cpu type, if your compiler |
43 | does not define it automatically: | |
44 | vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO | |
45 | are the ones defined so far. */ | |
46 | #define m68000 | |
47 | ||
48 | /* Use type int rather than a union, to represent Lisp_Object */ | |
49 | /* This is desirable for most machines. */ | |
50 | ||
51 | #define NO_UNION_TYPE | |
52 | ||
53 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
09b3d662 | 54 | the bit field into an int. In other words, if bit fields |
20c428fd JB |
55 | are always unsigned. |
56 | ||
57 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
58 | ||
59 | #define EXPLICIT_SIGN_EXTEND | |
60 | ||
61 | /* Data type of load average, as read out of kmem. */ | |
62 | ||
63 | /* #define LOAD_AVE_TYPE long */ | |
64 | ||
65 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
66 | ||
67 | /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */ | |
68 | ||
69 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
70 | Then the function dump-emacs will not be defined | |
71 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
72 | ||
73 | /* #define CANNOT_DUMP */ | |
74 | ||
75 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
76 | pure and impure space as loaded can vary, and even their | |
77 | relative order cannot be relied on. | |
78 | ||
79 | Otherwise Emacs assumes that text space precedes data space, | |
80 | numerically. */ | |
81 | ||
82 | /* #define VIRT_ADDR_VARIES */ | |
83 | ||
84 | /* Define C_ALLOCA if this machine does not support a true alloca | |
85 | and the one written in C should be used instead. | |
86 | Define HAVE_ALLOCA to say that the system provides a properly | |
87 | working alloca function and it should be used. | |
88 | Define neither one if an assembler-language alloca | |
89 | in the file alloca.s should be used. */ | |
90 | ||
91 | #ifdef __GNUC__ | |
92 | #define HAVE_ALLOCA | |
93 | #define alloca __builtin_alloca | |
94 | #define C_OPTIMIZE_SWITCH -O -fstrength-reduce -fomit-frame-pointer | |
95 | #define LIB_STANDARD -lc /lib/crtn.o | |
96 | #else | |
97 | /* This section is correct if you do *not* change src/ymakefile so that | |
98 | CFLAGS includes C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH. */ | |
99 | #define HAVE_ALLOCA | |
100 | #define C_DEBUG_SWITCH -g -O0 | |
101 | #define LIB_STANDARD -lc -lPW /lib/crtn.o | |
102 | /* This section is correct if you do enable C_OPTIMIZE_SWITCH. */ | |
103 | /* #define C_ALLOCA */ | |
104 | /* #define STACK_DIRECTION -1 */ | |
105 | /* #define C_OPTIMIZE_SWITCH -O2 */ | |
106 | /* #define LIB_STANDARD -lc /lib/crtn.o */ | |
107 | #endif | |
108 | ||
109 | /* The OS maps the data section far away from the text section. */ | |
110 | #define NO_REMAP | |
111 | #define TEXT_START 0 | |
112 | #undef static | |
113 | #define START_FILES pre-crt0.o /lib/crt1.o | |
114 | ||
20c428fd JB |
115 | /* The OS has an implementation of symlinks that is semantically different |
116 | from BSD, but for some silly reason it partly has the same syntax. */ | |
117 | #undef S_IFLNK | |
118 | ||
119 | /* The OS needs stream.h+ptem.h included in sysdep.c. */ | |
120 | #define NO_SIOCTL_H | |
121 | #define NEED_PTEM_H |