view src/m/elxsi.h @ 3063:d30cd499e445

[xemacs-hg @ 2005-11-13 10:48:01 by ben] further error-checking, etc. alloc.c, lrecord.h: Move around the handling of setting of lheader->uid so it's in set_lheader_implementation() -- that way, even non-MC-ALLOC builds get useful uid's in their bare lrecords. Redo related code for strings so the non-ascii count that is stored in the uid isn't hosed. events.c: Save and restore the uid around event zeroing/deadbeefing. lisp.h: Set the correct value of MAX_STRING_ASCII_BEGIN under MC_ALLOC. lisp.h: rearrange the basic code handling ints and chars. basic int stuff goes first, followed by basic char stuff, followed in turn by stuff that mixes ints and chars. this is required since some basic defn's have become inline functions. XCHAR and CHARP have additional error-checking in that they check to make sure that the value in question is not just a character but a valid character (i.e. its numeric value is valid). print.c: debug_p4 now has a useful UID in all cases and uses it; but it also prints the raw header address (previously, you just got one of them). text.h: some basic char defn's that belonged in lisp.h have been moved there. valid_ichar_p() is moved too since the inline functions need it.
author ben
date Sun, 13 Nov 2005 10:48:04 +0000
parents ecf1ebac70d8
children
line wrap: on
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/* machine description file for Elxsi machine (running enix).
   Copyright (C) 1986, 1992 Free Software Foundation, Inc.
   Adapted by John Salmon

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 2, 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: FSF 19.31. */

/* The following line tells the configuration script what sort of 
   operating system this machine is likely to run.
   USUAL-OPSYS="usg5-2"  */

/* This file was modified by Matt Crawford <matt@tank.uchicago.edu>
   to work under Elxsi's 12.0 release of BSD unix. */

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

#ifndef elxsi
#define elxsi
#endif

/* Name of kernel load average variable */

#undef LDAV_SYMBOL
#define LDAV_SYMBOL "avenrun"

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

#define LOAD_AVE_TYPE double

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

#define LOAD_AVE_CVT(x) (int) ((x) * 100.0)

/* 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*/

/* This is a guess for an alternate solution to whatever
   problem motivated defining _sobuf in sysdep,c with extern char *_sobuf.  */
#define _sobuf xsobuf

/* Address of start of text segment as loaded.  */

#define TEXT_START	0x800

/* Tell crt0.c not to define environ.  */

#define DONT_NEED_ENVIRON

/* The elxsi has no debugger, so might as well optimize instead
   of trying to make a symbol table.  */

#define C_DEBUG_SWITCH "-O"

/* Elxsi uses COFF under both Sys V and BSD environments */

#define COFF

#define ADJUST_EXEC_HEADER {\
extern int _init_brk;\
_init_brk = bss_start;\
}