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 /* 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 /* Define BIG_ENDIAN iff lowest-numbered byte in a word
  35    is the most significant byte.  */
  36
  37 #define BIG_ENDIAN
  38
  39 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  40  * group of arguments and treat it as an array of the arguments.  */
  41
  42 #undef NO_ARG_ARRAY
  43
  44 /* Define WORD_MACHINE if addresses and such have
  45  * to be corrected before they can be used as byte counts.  */
  46
  47 #undef WORD_MACHINE
  48
  49 /* Now define a symbol for the cpu type, if your compiler
  50    does not define it automatically:
  51    vax, m68000, ns16000 are the ones defined so far.  */
  52
  53 #ifndef m68000
  54 #define m68000
  55 #endif
  56
  57 /* This flag is used only in alloca.s.  */
  58 #define WICAT
  59
  60 /* Use type int rather than a union, to represent Lisp_Object */
  61
  62 #define NO_UNION_TYPE
  63
  64 /* XINT must explicitly sign-extend */
  65
  66 #define EXPLICIT_SIGN_EXTEND
  67
  68 /* Data type of load average, as read out of kmem.  */
  69
  70 #undef LOAD_AVE_TYPE
  71
  72 /* Convert that into an integer that is 100 for a load average of 1.0  */
  73
  74 #undef LOAD_AVE_CVT
  75
  76 /* Define CANNOT_DUMP on machines where unexec does not work.
  77    Then the function dump-emacs will not be defined
  78    and temacs will do (load "loadup") automatically unless told otherwise.  */
  79
  80 #undef CANNOT_DUMP
  81
  82 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  83    pure and impure space as loaded can vary, and even their
  84    relative order cannot be relied on.
  85
  86    Otherwise Emacs assumes that text space precedes data space,
  87    numerically.  */
  88
  89 #undef VIRT_ADDR_VARIES
  90
  91 /* Define C_ALLOCA if this machine does not support a true alloca
  92    and the one written in C should be used instead.
  93    Define HAVE_ALLOCA to say that the system provides a properly
  94    working alloca function and it should be used.
  95    Define neither one if an assembler-language alloca
  96    in the file alloca.s should be used.  */
  97
  98 /* For the Wicat C compiler version 4.2, this can be removed
  99    and the alloca in alloca.s used.  */
 100 #define C_ALLOCA
 101 #define STACK_DIRECTION -1  /* grows towards lower addresses on WICAT */
 102
 103 /* Define NO_REMAP if memory segmentation makes it not work well
 104    to change the boundary between the text section and data section
 105    when Emacs is dumped.  If you define this, the preloaded Lisp
 106    code will not be sharable; but that's better than failing completely.  */
 107
 108 #undef NO_REMAP
 109
 110 /* For WICAT, define TAHOE_REGISTER_BUG if you have a pre-4.2 C compiler */
 111
 112 #define TAHOE_REGISTER_BUG
 113
 114 /* pagesize definition */
 115
 116 #define EXEC_PAGESIZE   0x1000
 117
 118 /* Delete this for WICAT sys V releases before 2.0.  */
 119
 120 #define LIB_STANDARD -lc-nofp
 121
 122 /* Special magic number */
 123
 124 #define EXEC_MAGIC      MC68ROMAGIC
 125
 126 /* Special switches to give to ld.  */
 127
 128 #define LD_SWITCH_MACHINE -e __start -N
 129
 130 /* Sigh...cannot define this for WICAT cuz 0 length memcpy blows chunks */
 131
 132 #undef BSTRING
 133
 134 #ifdef BSTRING
 135 #undef bcopy
 136 #undef bzero
 137 #undef bcmp
 138
 139 #define bcopy(a,b,s)    memcpy(b,a,s)
 140 #define bzero(a,s)      memset(a,0,s)
 141 #define bcmp            memcmp
 142 #endif
 143
 144 /*
 145  * Define optimflags if you want to optimize.
 146  *      - Set to null string for pre-4.2 C compiler
 147  *      - Set to "-O -Wopt,-O-f" for 4.2
 148  */
 149
 150 #define C_OPTIMIZE_SWITCH /* -O -Wopt,-O-f */
 151
 152 /* For WICAT version supporting PTYs and select (currently internal only) */
 153
 154 #ifdef HAVE_PTYS
 155 #undef FIRST_PTY_LETTER
 156 #define FIRST_PTY_LETTER 'q'
 157 #endif
 158
 159 /* there is a select() in libcurses.a that causes a conflict so use termlib */
 160 #ifdef HAVE_SELECT
 161 #undef TERMINFO
 162 #define LIBS_TERMCAP select.o -ltermlib
 163 #endif