1/* Machine description file for generic Motorola 68k. 2 Copyright (C) 1985, 1995, 2001, 2002, 2003, 2004, 3 2005, 2006, 2007 Free Software Foundation, Inc. 4 5This file is part of GNU Emacs. 6 7GNU Emacs is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU Emacs is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU Emacs; see the file COPYING. If not, write to 19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20Boston, 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) */ 88