src/m/tek4300.h

   1 /* machine description file for tek4300.
   2    Copyright (C) 1988 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 2, 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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, 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="bsd4-3"  */
  25
  26 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  27    is the most significant byte.  */
  28
  29 #define WORDS_BIG_ENDIAN
  30
  31 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  32  * group of arguments and treat it as an array of the arguments.  */
  33
  34 #undef NO_ARG_ARRAY
  35
  36 /* Define WORD_MACHINE if addresses and such have
  37  * to be corrected before they can be used as byte counts.  */
  38
  39 #undef WORD_MACHINE
  40
  41 /* Now define a symbol for the cpu type, if your compiler
  42    does not define it automatically.  */
  43
  44 #ifndef tek4300
  45 #define tek4300
  46 #endif
  47
  48 /* Use type int rather than a union, to represent Lisp_Object */
  49
  50 #define NO_UNION_TYPE
  51
  52 /* Data type of load average, as read out of kmem.  */
  53
  54 #define LOAD_AVE_TYPE long
  55
  56 /* Convert that into an integer that is 100 for a load average of 1.0  */
  57
  58 #define LOAD_AVE_CVT(x) (x)
  59
  60 /* Define NO_REMAP if memory segmentation makes it not work well
  61    to change the boundary between the text section and data section
  62    when Emacs is dumped.  If you define this, the preloaded Lisp
  63    code will not be sharable; but that's better than failing completely.  */
  64
  65 #define NO_REMAP
  66
  67 /* Define C_ALLOCA if this machine does not support a true alloca
  68    and the one written in C should be used instead. */
  69
  70 #define C_ALLOCA
  71
  72 /* setjmp and longjmp can safely replace _setjmp and _longjmp, */
  73
  74 #define _longjmp longjmp
  75 #define _setjmp setjmp
  76
  77 /* The text segment always starts at a fixed address.
  78    This way we don't need to have a label _start defined.  */
  79
  80 #define TEXT_START 0
  81
  82 /* The Tektronix exec struct for ZMAGIC files is struct zexec */
  83
  84 #define EXEC_HDR_TYPE struct zexec
  85
  86 /* The entry-point label (start of text segment) is `start', not `__start'.  */
  87
  88 #define DEFAULT_ENTRY_ADDRESS start
  89
  90 /* Use the system's malloc calls, gmalloc.c won't work for us. */
  91
  92 #define SYSTEM_MALLOC
  93
  94 /* In building xmakefile, "cc -E -g" forcibly reads from stdin.  Since we
  95    can't remove the CFLAGS from that "cc -E" invocation, make sure we
  96    never pass -g.  If you want to debug, remove the following, and fix
  97    src/Makefile.in so it doesn't pass ${CFLAGS} when creating xmakefile. */
  98
  99 #define C_DEBUG_SWITCH
 100
 101 /* eirik@elf.ithaca.ny.us said this was needed in 19.22.  */
 102 #define NO_MODE_T
 103
 104 /* Process groups work in the traditional BSD manner.  */
 105
 106 #define BSD_PGRPS