src/m/pfa50.h

   1 /* Machine description file for PFU A-series.
   2    Copyright (C) 1988 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
  22 /* The following three symbols give information on
  23  the size of various data types.  */
  24
  25 #define SHORTBITS 16            /* Number of bits in a short */
  26
  27 #define INTBITS 32              /* Number of bits in an int */
  28
  29 #define LONGBITS 32             /* Number of bits in a long */
  30
  31 /* 68000 has lowest-numbered byte as most significant */
  32
  33 #define BIG_ENDIAN
  34
  35 /* Say this machine is a 68000 */
  36
  37 #define m68000
  38 #define mc68000 1
  39
  40 /* Use type int rather than a union, to represent Lisp_Object */
  41
  42 #define NO_UNION_TYPE
  43
  44 /* XINT must explicitly sign-extend */
  45
  46 #define EXPLICIT_SIGN_EXTEND
  47
  48 /* The symbol FIONREAD is defined, but the feature does not work.  */
  49
  50 #define BROKEN_FIONREAD
  51
  52 /* Define NO_REMAP if memory segmentation makes it not work well
  53    to change the boundary between the text section and data section
  54    when Emacs is dumped.  If you define this, the preloaded Lisp
  55    code will not be sharable; but that's better than failing completely.  */
  56
  57 #define NO_REMAP
  58
  59 /* Define TEXT_START_ADDR if your linker don't set execute point to _start.
  60    If it needed, temacs always CORE-DUMP.       */
  61
  62 #define TEXT_START_ADDR __start
  63
  64 /* Define START_FILES if your machine used _start.
  65  */
  66
  67 #define START_FILES crt0.o
  68
  69 /* Define LD_SWITCH_MACHINE if your linker need it.
  70  */
  71
  72 #define LD_SWITCH_MACHINE -e __start
  73
  74 #if     pfa50 || pfa70
  75
  76 /* On A-50/60/70/80, data space has high order byte use. */
  77 #define VALMASK (((1<<VALBITS) - 1) | 0x60000000)
  78 #define XTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & 0x1f))
  79 #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & 0x1f))
  80
  81 #endif /* pfa50, pfa70 */
  82
  83 /* SX/A has alloca in the PW library.  */
  84
  85 #define LIB_STANDARD -lPW -lc
  86 #define HAVE_ALLOCA
  87
  88 /* SX/A uses terminfo and lib/curses   */
  89
  90 #define TERMINFO
  91
  92 #define HAVE_TIMEVAL
  93 #define HAVE_SELECT
  94 #define HAVE_PTYS
  95 #define HAVE_SOCKETS
  96 #define HAVE_RENAME
  97
  98 /* SX/A use SystemV style getdents/readdir. */
  99 #define HAVE_CLOSEDIR
 100
 101 /* SX/A does not have sigblock(2) */
 102 #define sigblock(mask)  (0)
 103
 104 #define USG_SYS_TIME
 105 #define USE_UTIME
 106
 107 #define NO_SIOCTL_H
 108
 109 #undef SIGIO