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/* machine description file for AT&T UNIX PC model 7300
Copyright (C) 1986 Free Software Foundation, Inc.
Modified for this machine by mtxinu!rtech!gonzo!daveb
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 GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* The following line tells the configuration script what sort of
operating system this machine is likely to run.
USUAL-OPSYS="usg5-2-2" */
/* Supposedly now these machines have flexnames.
/* # define SHORTNAMES */
/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
is the most significant byte. */
#define WORDS_BIG_ENDIAN
/* XINT must explicitly sign-extend */
#define EXPLICIT_SIGN_EXTEND
/* Use type int rather than a union, to represent Lisp_Object */
#define NO_UNION_TYPE
/* Now define a symbol for the cpu type, if your compiler
does not define it automatically:
vax, m68000, ns16000 are the ones defined so far. */
# ifndef mc68k
# define mc68k
# endif
#ifndef m68k
#define m68k
#endif
/* Cause crt0.c to define errno. */
#define NEED_ERRNO
/* Data type of load average, as read out of kmem. */
/* These are commented out since it is not supported by this machine. */
/* #define LOAD_AVE_TYPE long */
/* Convert that into an integer that is 100 for a load average of 1.0 */
/* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0) */
#ifdef __GNUC__
#define HAVE_ALLOCA
#else
#define SWITCH_ENUM_BUG
#define C_ALLOCA
#define STACK_DIRECTION -1
#endif
/* If you have the PD pty driver installed, uncomment the following line. */
/* #define HAVE_PTYS */
#define HAVE_SYSVIPC
/* We don't have memmove. */
#define memmove(d, s, n) safe_bcopy (s, d, n)
/* These three lines were new in 18.50. They were said to permit
a demand-paged executable, but someone else says they don't work.
Someone else says they do. They didn't work because errno was an
initialized variable in crt0.c, and because of %splimit (also therein),
both of which have been fixed now. */
#define SECTION_ALIGNMENT 0x03ff
#define SEGMENT_MASK 0xffff
#define LD_SWITCH_MACHINE -z
/* Insist on using cc when compiling this. GCC may have been
configured to use GAS syntax, which causes problems. */
#define CRT0_COMPILE cc -c -O -Demacs
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