src/m/delta88k.h

   1 /* Machine description file for Motorola System V/88 machines
   2    Copyright (C) 1985 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is distributed in the hope that it will be useful,
   7 but WITHOUT ANY WARRANTY.  No author or distributor
   8 accepts responsibility to anyone for the consequences of using it
   9 or for whether it serves any particular purpose or works at all,
  10 unless he says so in writing.  Refer to the GNU Emacs General Public
  11 License for full details.
  12
  13 Everyone is granted permission to copy, modify and redistribute
  14 GNU Emacs, but only under the conditions described in the
  15 GNU Emacs General Public License.   A copy of this license is
  16 supposed to have been given to you along with GNU Emacs so you
  17 can know your rights and responsibilities.  It should be in a
  18 file named COPYING.  Among other things, the copyright notice
  19 and this notice must be preserved on all copies.  */
  20
  21 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="usg5-3"  */
  24
  25 /* The following three symbols give information on
  26  the size of various data types.  */
  27
  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 #define 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 /* #define WORD_MACHINE */
  49
  50 /* Now define a symbol for the cpu type, if your compiler
  51    does not define it automatically:
  52    Ones defined so far include vax, m68000, ns16000, pyramid,
  53    orion, tahoe, APOLLO and many others */
  54
  55 #ifndef m88000     /* Some 88k C compilers already define this */
  56 #define m88000
  57 #endif
  58
  59 /* Define how to take a char and sign-extend into an int.
  60    On machines where char is signed, this is a no-op.  */
  61
  62 #define SIGN_EXTEND_CHAR(c) (c)
  63
  64 /* Now define a symbol for the cpu type, if your compiler
  65    does not define it automatically.  */
  66
  67
  68 /* Use type int rather than a union, to represent Lisp_Object */
  69 /* This is desirable for most machines.  */
  70
  71 #define NO_UNION_TYPE
  72
  73 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  74    the 24-bit bit field into an int.  In other words, if bit fields
  75    are always unsigned.
  76
  77    If you use NO_UNION_TYPE, this flag does not matter.  */
  78
  79 /* #define EXPLICIT_SIGN_EXTEND */
  80
  81 /* Data type of load average, as read out of kmem.  */
  82 /* No load average on Motorola machines. */
  83 /* #define LOAD_AVE_TYPE double */
  84
  85 /* Convert that into an integer that is 100 for a load average of 1.0  */
  86 /* #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0)) */
  87
  88 /* Define CANNOT_DUMP on machines where unexec does not work.
  89    Then the function dump-emacs will not be defined
  90    and temacs will do (load "loadup") automatically unless told otherwise.  */
  91
  92 /* #define CANNOT_DUMP  */
  93
  94 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  95    pure and impure space as loaded can vary, and even their
  96    relative order cannot be relied on.
  97
  98    Otherwise Emacs assumes that text space precedes data space,
  99    numerically.  */
 100
 101 /* #define VIRT_ADDR_VARIES */
 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 #define NO_REMAP
 109
 110 /* Define C_ALLOCA if this machine does not support a true alloca
 111    and the one written in C should be used instead.
 112    Define HAVE_ALLOCA to say that the system provides a properly
 113    working alloca function and it should be used.
 114    Define neither one if an assembler-language alloca
 115    in the file alloca.s should be used.  */
 116
 117 /* BEM:  Distributed asm alloca doesn't work.  Don't know about libPW.a.
 118    C ALLOCA is safe and fast enough for now. */
 119
 120 #define C_ALLOCA
 121 #define STACK_DIRECTION -1  /* grows towards lower addresses. */
 122
 123 /* Motorola SysV has PTYs.  Not all usg3-5 systems do, so this is defined
 124    here. */
 125
 126 #define HAVE_PTYS
 127 #define SYSV_PTYS
 128
 129 /* Ditto for IPC. */
 130
 131
 132 /*
 133  * we now have job control in R32V1
 134  */
 135 #undef NOMULTIPLEJOBS
 136
 137 /*
 138  * we have bcopy, bzero, bcmp in libc.a (what isn't in libc.a?)
 139  */
 140 #define BSTRING
 141
 142 /*
 143  * sockets are in R32V1
 144  */
 145 #define HAVE_SOCKETS
 146
 147 /*
 148  * we have the wrong name for networking libs
 149  */
 150 #undef LIBX11_SYSTEM
 151 #define LIBX11_SYSTEM -lnsl -lbsd
 152
 153 /*
 154  * we have Berkeley style <sys/time.h>
 155  */
 156 #define HAVE_TIMEVAL
 157 #define HAVE_GETTIMEOFDAY
 158
 159 /* SysV88 has select(). */
 160 #define HAVE_SELECT
 161 #define BROKEN_FIONREAD
 162
 163 /*
 164  * don't use utimes, we ain't got one - use utime() instead
 165  */
 166 #define USE_UTIME
 167
 168 #define LIBS_SYSTEM -lbsd -lg
 169
 170 #define NEED_TERMIOS
 171
 172 #define NO_SIOCTL_H