src/m/wicat.h

   1 /* machine description file for WICAT machines.
   2    Copyright (C) 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 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="usg5-2"  */
  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    vax, m68000, ns16000 are the ones defined so far.  */
  44
  45 #ifndef m68000
  46 #define m68000
  47 #endif
  48
  49 /* This flag is used only in alloca.s.  */
  50 #define WICAT
  51
  52 /* Use type int rather than a union, to represent Lisp_Object */
  53
  54 #define NO_UNION_TYPE
  55
  56 /* XINT must explicitly sign-extend */
  57
  58 #define EXPLICIT_SIGN_EXTEND
  59
  60 /* Data type of load average, as read out of kmem.  */
  61
  62 #undef LOAD_AVE_TYPE
  63
  64 /* Convert that into an integer that is 100 for a load average of 1.0  */
  65
  66 #undef LOAD_AVE_CVT
  67
  68 /* Define CANNOT_DUMP on machines where unexec does not work.
  69    Then the function dump-emacs will not be defined
  70    and temacs will do (load "loadup") automatically unless told otherwise.  */
  71
  72 #undef CANNOT_DUMP
  73
  74 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  75    pure and impure space as loaded can vary, and even their
  76    relative order cannot be relied on.
  77
  78    Otherwise Emacs assumes that text space precedes data space,
  79    numerically.  */
  80
  81 #undef VIRT_ADDR_VARIES
  82
  83 /* Define C_ALLOCA if this machine does not support a true alloca
  84    and the one written in C should be used instead.
  85    Define HAVE_ALLOCA to say that the system provides a properly
  86    working alloca function and it should be used.
  87    Define neither one if an assembler-language alloca
  88    in the file alloca.s should be used.  */
  89
  90 /* For the Wicat C compiler version 4.2, this can be removed
  91    and the alloca in alloca.s used.  */
  92 #define C_ALLOCA
  93 #define STACK_DIRECTION -1  /* grows towards lower addresses on WICAT */
  94
  95 /* Define NO_REMAP if memory segmentation makes it not work well
  96    to change the boundary between the text section and data section
  97    when Emacs is dumped.  If you define this, the preloaded Lisp
  98    code will not be sharable; but that's better than failing completely.  */
  99
 100 #undef NO_REMAP
 101
 102 /* For WICAT, define TAHOE_REGISTER_BUG if you have a pre-4.2 C compiler */
 103
 104 #define TAHOE_REGISTER_BUG
 105
 106 /* pagesize definition */
 107
 108 #define EXEC_PAGESIZE   0x1000
 109
 110 /* Delete this for WICAT sys V releases before 2.0.  */
 111
 112 #define LIB_STANDARD -lc-nofp
 113
 114 /* Special magic number */
 115
 116 #define EXEC_MAGIC      MC68ROMAGIC
 117
 118 /* Special switches to give to ld.  */
 119
 120 #define LD_SWITCH_MACHINE -e __start -N
 121
 122 /* Sigh...cannot define this for WICAT cuz 0 length memcpy blows chunks */
 123
 124 #undef BSTRING
 125
 126 #ifdef BSTRING
 127 #undef bcopy
 128 #undef bzero
 129 #undef bcmp
 130
 131 #define bcopy(a,b,s)    memcpy(b,a,s)
 132 #define bzero(a,s)      memset(a,0,s)
 133 #define bcmp            memcmp
 134 #endif
 135
 136 /*
 137  * Define optimflags if you want to optimize.
 138  *      - Set to null string for pre-4.2 C compiler
 139  *      - Set to "-O -Wopt,-O-f" for 4.2
 140  */
 141
 142 #define C_OPTIMIZE_SWITCH /* -O -Wopt,-O-f */
 143
 144 /* For WICAT version supporting PTYs and select (currently internal only) */
 145
 146 #ifdef HAVE_PTYS
 147 #undef FIRST_PTY_LETTER
 148 #define FIRST_PTY_LETTER 'q'
 149 #endif
 150
 151 /* there is a select() in libcurses.a that causes a conflict so use termlib */
 152 #ifdef HAVE_SELECT
 153 #undef TERMINFO
 154 #define LIBS_TERMCAP select.o -ltermlib
 155 #endif