src/m/apollo.h

   1 /* machine description file for Apollo machine.
   2    Copyright (C) 1985, 1986 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 1, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="bsd4-2"  */
  24
  25 /* The following three symbols give information on
  26  the size of various data types.  */
  27
  28 #define SHORTBITS 16            /* Number of bits in a short */
  29
  30 #define INTBITS 32              /* Number of bits in an int */
  31
  32 #define LONGBITS 32             /* Number of bits in a long */
  33
  34 /* 68000 has lowest-numbered byte as most significant */
  35
  36 #define BIG_ENDIAN
  37
  38 /* Define how to take a char and sign-extend into an int.
  39    On machines where char is signed, this is a no-op.  */
  40
  41 #define SIGN_EXTEND_CHAR(c) (c)
  42
  43 /* Say this machine is a 68000 */
  44
  45 /* #define m68000 */   /* Done by the C compiler */
  46
  47 #define APOLLO
  48
  49 /* Assume we use s-bsd4-3.h for system version 10.  */
  50
  51 #ifdef BSD4_3
  52 #define APOLLO_SR10
  53 #endif
  54
  55 /* Use type int rather than a union, to represent Lisp_Object */
  56
  57 #define NO_UNION_TYPE
  58
  59 /* Do not define LOAD_AVE_TYPE or LOAD_AVE_CVT
  60    since there is no /dev/kmem */
  61
  62 /* Define CANNOT_DUMP because it is impossible to dump.  */
  63
  64 #define CANNOT_DUMP
  65
  66 /* Define VIRT_ADDR_VARIES because the virtual addresses of
  67    pure and impure space as loaded can vary, and even their
  68    relative order cannot be relied on.  */
  69
  70 #define VIRT_ADDR_VARIES
  71
  72 /* Define HAVE_ALLOCA because we use the system's version of alloca.  */
  73
  74 #define HAVE_ALLOCA
  75
  76 /* DN460 has a 28 bit virtual address space, and 26 bits are often used */
  77
  78 #define VALBITS 26
  79 #define GCTYPEBITS 5
  80
  81 /* Prevent -lg from being used for debugging.  Not needed.  */
  82
  83 #define LIBS_DEBUG
  84
  85 /* Must use the system's termcap.  It does special things.  */
  86
  87 #define LIBS_TERMCAP -ltermcap
  88
  89 /* Must use the system's malloc and alloca.  */
  90
  91 #define SYSTEM_MALLOC
  92
  93 /* No crt0 is needed, but control where environ is allocated.  */
  94
  95 #define START_FILES pre-crt0.o
  96
  97 /* Apollo's bcopy said to lose on more than 16k bytes in SR9.5.  */
  98
  99 #ifndef APOLLO_SR10
 100 #undef BSTRING
 101 #endif