/* machine description file for Apollo machine.
   Copyright (C) 1985, 1986 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 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="bsd4-2"  */

/* The following three symbols give information on
 the size of various data types.  */

#define SHORTBITS 16		/* Number of bits in a short */

#define INTBITS 32		/* Number of bits in an int */

#define LONGBITS 32		/* Number of bits in a long */

/* 68000 has lowest-numbered byte as most significant */

#define BIG_ENDIAN

/* Say this machine is a 68000 */

/* #define m68000 */   /* Done by the C compiler */

#define APOLLO

/* Assume we use s-bsd4-3.h for system version 10.  */

#ifdef BSD4_3
#define APOLLO_SR10
#endif

/* Use type int rather than a union, to represent Lisp_Object */

#define NO_UNION_TYPE

/* Do not define LOAD_AVE_TYPE or LOAD_AVE_CVT
   since there is no /dev/kmem */

/* Define CANNOT_DUMP because it is impossible to dump.  */

#define CANNOT_DUMP

/* Define VIRT_ADDR_VARIES because the virtual addresses of
   pure and impure space as loaded can vary, and even their
   relative order cannot be relied on.  */

#define VIRT_ADDR_VARIES

/* Define HAVE_ALLOCA because we use the system's version of alloca.  */

#define HAVE_ALLOCA

/* DN460 has a 28 bit virtual address space, and 26 bits are often used */

#define VALBITS 26
#define GCTYPEBITS 5

/* Prevent -lg from being used for debugging.  Not needed.  */

#define LIBS_DEBUG

/* Must use the system's termcap.  It does special things.  */

#define LIBS_TERMCAP -ltermcap

/* Must use the system's malloc and alloca.  */

#define SYSTEM_MALLOC

/* No crt0 is needed, but control where environ is allocated.  */

#define START_FILES pre-crt0.o

/* Apollo's bcopy said to lose on more than 16k bytes in SR9.5.  */

#ifndef APOLLO_SR10
#undef BSTRING
#endif

/* The function x_destroy_database doesn't exist in the version of X
   on the Apollo.  */
#define NO_X_DESTROY_DATABASE