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0dc7e4aa | 1 | /* Machine description file for generic Motorola 68k. |
d8f6d720 | 2 | Copyright (C) 1985, 1995, 2002 Free Software Foundation, Inc. |
0dc7e4aa RS |
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 | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
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. */ | |
0dc7e4aa RS |
20 | |
21 | ||
22 | /* The following three symbols give information on | |
23 | the size of various data types. */ | |
24 | ||
25 | ||
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 | ||
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 | ||
41 | /* Now define a symbol for the cpu type, if your compiler | |
42 | does not define it automatically. */ | |
43 | ||
44 | #ifndef m68k | |
45 | #define m68k | |
46 | #endif | |
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 | |
54 | the 24-bit bit field into an int. In other words, if bit fields | |
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 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
62 | Then the function dump-emacs will not be defined | |
63 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
64 | ||
65 | /* #define CANNOT_DUMP */ | |
66 | ||
67 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
68 | pure and impure space as loaded can vary, and even their | |
69 | relative order cannot be relied on. | |
70 | ||
71 | Otherwise Emacs assumes that text space precedes data space, | |
72 | numerically. */ | |
73 | ||
74 | /* #define VIRT_ADDR_VARIES */ | |
75 | ||
76 | #ifdef linux | |
77 | #ifdef __ELF__ | |
78 | #define DATA_SEG_BITS 0x80000000 | |
79 | #endif | |
80 | ||
81 | #define NO_REMAP | |
82 | #define TEXT_START 0 | |
83 | #endif | |
ab5796a9 MB |
84 | |
85 | /* arch-tag: 4eadd161-b4e8-4b82-82a1-e4ce7f42969d | |
86 | (do not change this comment) */ |