src/m/orion105.h

   1 /* machine description file for HLH Orion 1/05 (Clipper).
   2    Copyright (C) 1985 Free Software Foundation, Inc.
   3    Lee McLoughlin <lmjm%doc.imperial.ac.uk@nss.cs.ucl.ac.uk>
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 1, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21
  22 /* The following line tells the configuration script what sort of
  23    operating system this machine is likely to run.
  24    USUAL-OPSYS="bsd4-2"  */
  25
  26 /* The following three symbols give information on
  27  the size of various data types.  */
  28
  29 #define SHORTBITS 16            /* Number of bits in a short */
  30
  31 #define INTBITS 32              /* Number of bits in an int */
  32
  33 #define LONGBITS 32             /* Number of bits in a long */
  34
  35 /* Define BIG_ENDIAN iff lowest-numbered byte in a word
  36    is the most significant byte.  */
  37
  38 #undef BIG_ENDIAN
  39
  40 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  41  * group of arguments and treat it as an array of the arguments.  */
  42
  43 #define NO_ARG_ARRAY
  44
  45 /* Define WORD_MACHINE if addresses and such have
  46  * to be corrected before they can be used as byte counts.  */
  47
  48 /* Use type int rather than a union, to represent Lisp_Object */
  49 /* This is desirable for most machines.  */
  50
  51 #define NO_UNION_TYPE
  52
  53 /* Data type of load average, as read out of kmem.  */
  54 /* This used to be `double'.  */
  55
  56 #define LOAD_AVE_TYPE long
  57
  58 /* Convert that into an integer that is 100 for a load average of 1.0  */
  59
  60 /* This used to be 1.0.  */
  61 #ifndef FSCALE
  62 #define FSCALE 256
  63 #endif
  64 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  65
  66 /* HLH have a SIGWINCH defined (but unimplemented) so we need a sigmask */
  67 #ifndef sigmask
  68 #define sigmask(m) (1 << ((m) - 1))
  69 #endif
  70
  71 #define HAVE_ALLOCA
  72
  73 /* Here is where programs actually start running */
  74 #define TEXT_START 0x8000
  75 #define LD_TEXT_START_ADDR 8000
  76
  77 /* Arguments to ignore before argc in crt0.c.  */
  78 #define DUMMIES dummy1, dummy2,