src/m/amdahl.h

   1 /* amdahl machine description file
   2    Copyright (C) 1987, 1999, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 /*
  23 This file for amdahl_uts created by modifying the template.h
  24 by Jishnu Mukerji 3/1/87
  25
  26 The following line tells the configuration script what sort of
  27 operating system this machine is likely to run.
  28 USUAL-OPSYS="usg5-2-2"
  29
  30 This file works with the Amdahl uts native C compiler. The 5.2u370
  31 compiler is so brain damaged that it is not even worth trying to use it.
  32 */
  33
  34 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  35    is the most significant byte.  */
  36
  37 #define WORDS_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 #define WORD_MACHINE /* not actually used anywhere yet! */
  48
  49 /* Now define a symbol for the cpu type, if your compiler
  50    does not define it automatically:
  51    vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
  52    are the ones defined so far.  */
  53
  54 /* uts gets defined automatically */
  55 /* However for clarity define amdahl_uts */
  56 #define amdahl_uts
  57
  58 /* Use type int rather than a union, to represent Lisp_Object */
  59 /* This is desirable for most machines.  */
  60
  61 #define NO_UNION_TYPE
  62
  63 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  64    the 24-bit bit field into an int.  In other words, if bit fields
  65    are always unsigned.
  66
  67    If you use NO_UNION_TYPE, this flag does not matter.  */
  68
  69 #define EXPLICIT_SIGN_EXTEND
  70
  71 /* Data type of load average, as read out of kmem.  */
  72
  73 /* #define LOAD_AVE_TYPE long*/
  74
  75 /* Convert that into an integer that is 100 for a load average of 1.0  */
  76
  77 /*#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)*/
  78
  79 /* Define CANNOT_DUMP on machines where unexec does not work.
  80    Then the function dump-emacs will not be defined
  81    and temacs will do (load "loadup") automatically unless told otherwise.  */
  82
  83 /* #define CANNOT_DUMP
  84
  85 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  86    pure and impure space as loaded can vary, and even their
  87    relative order cannot be relied on.
  88
  89    Otherwise Emacs assumes that text space precedes data space,
  90    numerically.  */
  91
  92 /* #define VIRT_ADDR_VARIES*/
  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 /*#define NO_REMAP*/
 100
 101 #define TERMINFO
 102
 103 /* The usual definition of XINT, which involves shifting, does not
 104    sign-extend properly on this machine.  */
 105
 106 #define XINT(i) (((sign_extend_temp=(i)) & 0x00800000) \
 107                  ? (sign_extend_temp | 0xFF000000) \
 108                  : (sign_extend_temp & 0x00FFFFFF))
 109
 110 #ifdef emacs /* Don't do this when making xmakefile! */
 111 extern int sign_extend_temp;
 112 #endif
 113
 114 /* The following needed to load the proper crt0.o and to get the
 115    proper declaration of data_start in the #undef NO_REMAP case */
 116
 117 #ifndef NO_REMAP
 118 #define START_FILES pre-crt0.o /lib/crt0.o
 119 #endif
 120
 121 /* Perhaps this means that the optimizer isn't safe to use.  */
 122
 123 #define C_OPTIMIZE_SWITCH
 124
 125 /* Put text and data on non-segment boundary; makes image smaller */
 126
 127 #define LD_SWITCH_MACHINE       -N
 128
 129 /* When writing the 'xemacs' file, make text segment ro */
 130 #define EXEC_MAGIC      0410
 131
 132 /* Mask for address bits within a memory segment */
 133 #define SEGSIZ 0x10000          /* Should this not be defined elsewhere ? */
 134 #define SEGMENT_MASK (SEGSIZ - 1)
 135
 136 /* Compensate for error in signal.h.  */
 137 #define NSIG_MINIMUM 20
 138
 139 /* arch-tag: cf665976-ddb1-49b0-b383-371e17f36acf
 140    (do not change this comment) */