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, 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="usg5-2"  */
  24
  25 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  26    is the most significant byte.  */
  27
  28 #define WORDS_BIG_ENDIAN
  29
  30 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  31  * group of arguments and treat it as an array of the arguments.  */
  32
  33 #undef NO_ARG_ARRAY
  34
  35 /* Define WORD_MACHINE if addresses and such have
  36  * to be corrected before they can be used as byte counts.  */
  37
  38 #undef WORD_MACHINE
  39
  40 /* Now define a symbol for the cpu type, if your compiler
  41    does not define it automatically:
  42    vax, m68000, ns16000 are the ones defined so far.  */
  43
  44 #ifndef m68000
  45 #define m68000
  46 #endif
  47
  48 /* This flag is used only in alloca.s.  */
  49 #define WICAT
  50
  51 /* Use type int rather than a union, to represent Lisp_Object */
  52
  53 #define NO_UNION_TYPE
  54
  55 /* XINT must explicitly sign-extend */
  56
  57 #define EXPLICIT_SIGN_EXTEND
  58
  59 /* Data type of load average, as read out of kmem.  */
  60
  61 #undef LOAD_AVE_TYPE
  62
  63 /* Convert that into an integer that is 100 for a load average of 1.0  */
  64
  65 #undef LOAD_AVE_CVT
  66
  67 /* Define CANNOT_DUMP on machines where unexec does not work.
  68    Then the function dump-emacs will not be defined
  69    and temacs will do (load "loadup") automatically unless told otherwise.  */
  70
  71 #undef CANNOT_DUMP
  72
  73 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  74    pure and impure space as loaded can vary, and even their
  75    relative order cannot be relied on.
  76
  77    Otherwise Emacs assumes that text space precedes data space,
  78    numerically.  */
  79
  80 #undef VIRT_ADDR_VARIES
  81
  82 /* Define C_ALLOCA if this machine does not support a true alloca
  83    and the one written in C should be used instead.
  84    Define HAVE_ALLOCA to say that the system provides a properly
  85    working alloca function and it should be used.
  86    Define neither one if an assembler-language alloca
  87    in the file alloca.s should be used.  */
  88
  89 /* For the Wicat C compiler version 4.2, this can be removed
  90    and the alloca in alloca.s used.  */
  91 #define C_ALLOCA
  92 #define STACK_DIRECTION -1  /* grows towards lower addresses on WICAT */
  93
  94 /* Define NO_REMAP if memory segmentation makes it not work well
  95    to change the boundary between the text section and data section
  96    when Emacs is dumped.  If you define this, the preloaded Lisp
  97    code will not be sharable; but that's better than failing completely.  */
  98
  99 #undef NO_REMAP
 100
 101 /* For WICAT, define TAHOE_REGISTER_BUG if you have a pre-4.2 C compiler */
 102
 103 #define TAHOE_REGISTER_BUG
 104
 105 /* pagesize definition */
 106
 107 #define EXEC_PAGESIZE   0x1000
 108
 109 /* Delete this for WICAT sys V releases before 2.0.  */
 110
 111 #define LIB_STANDARD -lc-nofp
 112
 113 /* Special magic number */
 114
 115 #define EXEC_MAGIC      MC68ROMAGIC
 116
 117 /* Special switches to give to ld.  */
 118
 119 #define LD_SWITCH_MACHINE -e __start -N
 120
 121 /* Sigh...cannot define this for WICAT cuz 0 length memcpy blows chunks */
 122
 123 #undef BSTRING
 124
 125 #ifdef BSTRING
 126 #undef bcopy
 127 #undef bzero
 128 #undef bcmp
 129
 130 #define bcopy(a,b,s)    memcpy(b,a,s)
 131 #define bzero(a,s)      memset(a,0,s)
 132 #define bcmp            memcmp
 133 #endif
 134
 135 /*
 136  * Define optimflags if you want to optimize.
 137  *      - Set to null string for pre-4.2 C compiler
 138  *      - Set to "-O -Wopt,-O-f" for 4.2
 139  */
 140
 141 #define C_OPTIMIZE_SWITCH /* -O -Wopt,-O-f */
 142
 143 /* For WICAT version supporting PTYs and select (currently internal only) */
 144
 145 #ifdef HAVE_PTYS
 146 #undef FIRST_PTY_LETTER
 147 #define FIRST_PTY_LETTER 'q'
 148 #endif
 149
 150 /* there is a select() in libcurses.a that causes a conflict so use termlib */
 151 #ifdef HAVE_SELECT
 152 #undef TERMINFO
 153 #define LIBS_TERMCAP select.o -ltermlib
 154 #endif