4.4BSD/usr/src/contrib/emacs-18.57/src/m-irist.h

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/* m- file for Silicon Graphics Iris 2500 Turbos;
   also possibly for non-turbo Irises with system release 2.5.
   Copyright (C) 1985, 1986 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */


#if 0
  Message-Id: <8705050653.AA20004@orville.arpa>
  Subject: gnu emacs 18.41 on iris [23].5 machines
  Date: 04 May 87 23:53:11 PDT (Mon)
  From: raible@orville.arpa

  Aside from the SIGIOT, I know of only one bug, a real strange one:
  I wrote a utimes interface, which copies elements from timevals
  to utimbufs. This code is known good.  The problem is that in
  emacs, the utime doesn't seem to take effect (i.e. doesn't change the
  dates at all) unless I call report_file_error *after* the utime returns!

    if (utime (name, &utb) < 0)
      return;
    else
      /* XXX XXX XXX */
      /* For some reason, if this is taken out, then the utime above breaks! */
      /* (i.e. it doesn't set the time. This just makes no sense... */
      /* Eric - May 4, 1987 */
      report_file_error ("Worked just find\n", Qnil);

  Without any sort of debugger that works on emacs (I know... but I don't have
  *time* right now to start with gdb), it was quite time consuming to track
  it down to this.

  But since this code is only used for an optional 4th argument to one command
  (copy-file), it would say that it is non-critical...
#endif /* 0 */

/* The following three symbols give information on
 the size of various data types.  */

#define SHORTBITS 16		/* Number of bits in a short */

#define INTBITS 32		/* Number of bits in an int */

#define LONGBITS 32		/* Number of bits in a long */

/* Define BIG_ENDIAN iff lowest-numbered byte in a word
   is the most significant byte.  */

#define BIG_ENDIAN

/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
 * group of arguments and treat it as an array of the arguments.  */

/* #define NO_ARG_ARRAY */

/* Define WORD_MACHINE if addresses and such have
 * to be corrected before they can be used as byte counts.  */

/* #define WORD_MACHINE */

/* Define how to take a char and sign-extend into an int.
   On machines where char is signed, this is a no-op.  */

#define SIGN_EXTEND_CHAR(c) (c)

/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically:
   Ones defined so far include vax, m68000, ns16000, pyramid,
   orion, tahoe, APOLLO and many others */

#ifndef m68000
#define m68000
#endif

/* Use type int rather than a union, to represent Lisp_Object */
/* This is desirable for most machines.  */

#define NO_UNION_TYPE

/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
   the 24-bit bit field into an int.  In other words, if bit fields
   are always unsigned.

   If you use NO_UNION_TYPE, this flag does not matter.  */

#define EXPLICIT_SIGN_EXTEND

/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE long

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define FSCALE 1.0
#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)

/* Define CANNOT_DUMP on machines where unexec does not work.
   Then the function dump-emacs will not be defined
   and temacs will do (load "loadup") automatically unless told otherwise.  */

/* #define CANNOT_DUMP */

/* Define VIRT_ADDR_VARIES if the virtual addresses of
   pure and impure space as loaded can vary, and even their
   relative order cannot be relied on.

   Otherwise Emacs assumes that text space precedes data space,
   numerically.  */

/* #define VIRT_ADDR_VARIES */

/* Define C_ALLOCA if this machine does not support a true alloca
   and the one written in C should be used instead.
   Define HAVE_ALLOCA to say that the system provides a properly
   working alloca function and it should be used.
   Define neither one if an assembler-language alloca
   in the file alloca.s should be used.  */

/* #define C_ALLOCA */
#define HAVE_ALLOCA

/* Define NO_REMAP if memory segmentation makes it not work well
   to change the boundary between the text section and data section
   when Emacs is dumped.  If you define this, the preloaded Lisp
   code will not be sharable; but that's better than failing completely.  */

/* #define NO_REMAP */

/* There is an inconsistency between the sgi assembler, linker which barfs
   on these. */

#define internal_with_output_to_temp_buffer	stupid_long_name1
#define Finsert_abbrev_table_description	stupid_long_name2