| 1 | /* Machine description file for generic Motorola 68k. |
| 2 | Copyright (C) 1985, 1995, 2002, 2003, 2004, |
| 3 | 2005 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | |
| 23 | /* The following three symbols give information on |
| 24 | the size of various data types. */ |
| 25 | |
| 26 | |
| 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 | |
| 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 | |
| 42 | /* Now define a symbol for the cpu type, if your compiler |
| 43 | does not define it automatically. */ |
| 44 | |
| 45 | #ifndef m68k |
| 46 | #define m68k |
| 47 | #endif |
| 48 | |
| 49 | /* Use type int rather than a union, to represent Lisp_Object */ |
| 50 | /* This is desirable for most machines. */ |
| 51 | |
| 52 | #define NO_UNION_TYPE |
| 53 | |
| 54 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend |
| 55 | the 24-bit bit field into an int. In other words, if bit fields |
| 56 | are always unsigned. |
| 57 | |
| 58 | If you use NO_UNION_TYPE, this flag does not matter. */ |
| 59 | |
| 60 | #define EXPLICIT_SIGN_EXTEND |
| 61 | |
| 62 | /* Define CANNOT_DUMP on machines where unexec does not work. |
| 63 | Then the function dump-emacs will not be defined |
| 64 | and temacs will do (load "loadup") automatically unless told otherwise. */ |
| 65 | |
| 66 | /* #define CANNOT_DUMP */ |
| 67 | |
| 68 | /* Define VIRT_ADDR_VARIES if the virtual addresses of |
| 69 | pure and impure space as loaded can vary, and even their |
| 70 | relative order cannot be relied on. |
| 71 | |
| 72 | Otherwise Emacs assumes that text space precedes data space, |
| 73 | numerically. */ |
| 74 | |
| 75 | /* #define VIRT_ADDR_VARIES */ |
| 76 | |
| 77 | #ifdef linux |
| 78 | #ifdef __ELF__ |
| 79 | #define DATA_SEG_BITS 0x80000000 |
| 80 | #endif |
| 81 | |
| 82 | #define NO_REMAP |
| 83 | #define TEXT_START 0 |
| 84 | #endif |
| 85 | |
| 86 | /* arch-tag: 4eadd161-b4e8-4b82-82a1-e4ce7f42969d |
| 87 | (do not change this comment) */ |