Mercurial > hg > xemacs-beta
diff src/m/m68k.h @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
author | cvs |
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date | Mon, 13 Aug 2007 08:45:50 +0200 |
parents | |
children | a86b2b5e0111 abe6d1db359e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/m/m68k.h Mon Aug 13 08:45:50 2007 +0200 @@ -0,0 +1,75 @@ +/* Machine description file for generic Motorola 68k. + Copyright (C) 1985, 1995 Free Software Foundation, Inc. + +This file is part of GNU Emacs. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with XEmacs; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Synched up with: FSF 19.31. */ + +/* The following symbol gives information on + the size of various data types. */ + +/* Define WORD_MACHINE if addresses and such have + * to be corrected before they can be used as byte counts. */ + +/* #define WORD_MACHINE */ + +/* Now define a symbol for the cpu type, if your compiler + does not define it automatically. */ + +#ifndef m68k +#define m68k +#endif + +/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend + the 24-bit bit field into an int. In other words, if bit fields + are always unsigned. + + If you use NO_UNION_TYPE, this flag does not matter. */ + +#define EXPLICIT_SIGN_EXTEND + +/* Define CANNOT_DUMP on machines where unexec does not work. + Then the function dump-emacs will not be defined + and temacs will do (load "loadup") automatically unless told otherwise. */ + +/* #define CANNOT_DUMP */ + +/* Define VIRT_ADDR_VARIES if the virtual addresses of + pure and impure space as loaded can vary, and even their + relative order cannot be relied on. + + Otherwise Emacs assumes that text space precedes data space, + numerically. */ + +/* #define VIRT_ADDR_VARIES */ + +#ifdef linux +#ifdef __ELF__ +#define DATA_SEG_BITS 0x80000000 +#endif + +#define NO_REMAP +#define TEXT_START 0 +#endif + +/* If compiling with GCC, let GCC implement alloca. */ +#if defined(__GNUC__) && !defined(alloca) +#define alloca(n) __builtin_alloca(n) +#define HAVE_ALLOCA +#endif +#define ASSERT_VALID_POINTER(pnt) (assert ((((int) pnt) & 1) == 0))