File:  [gforth] / gforth / Attic / 32bit.h
Revision 1.3: download - view: text, annotated - select for diffs
Tue Nov 7 18:06:28 1995 UTC (25 years, 9 months ago) by anton
Branches: MAIN
CVS tags: gforth-0_1beta, HEAD
added copyright headers
changes to loadfilename & co. to make savesystem transparent to
 assertions and ~~

    1: /*
    2:   This is a generic file for 32-bit machines with IEEE FP arithmetic (no VMS).
    3:   It only supports indirect threading.
    4: 
    5:   Copyright (C) 1995 Free Software Foundation, Inc.
    6: 
    7:   This file is part of Gforth.
    8: 
    9:   Gforth is free software; you can redistribute it and/or
   10:   modify it under the terms of the GNU General Public License
   11:   as published by the Free Software Foundation; either version 2
   12:   of the License, or (at your option) any later version.
   13: 
   14:   This program is distributed in the hope that it will be useful,
   15:   but WITHOUT ANY WARRANTY; without even the implied warranty of
   16:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17:   GNU General Public License for more details.
   18: 
   19:   You should have received a copy of the GNU General Public License
   20:   along with this program; if not, write to the Free Software
   21:   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   22: */
   23: 
   24: /* Cell and UCell must be the same size as a pointer */
   25: typedef long Cell;
   26: typedef unsigned long UCell;
   27: 
   28: /* DCell and UDCell must be twice as large as Cell */
   29: typedef long long DCell;
   30: typedef unsigned long long UDCell;
   31: 
   32: /* define this if IEEE singles and doubles are available as C data types */
   33: #define IEEE_FP
   34: 
   35: /* the IEEE types are used only for loading and storing */
   36: /* the IEEE double precision type */
   37: typedef double DFloat;
   38: /* the IEEE single precision type */
   39: typedef float SFloat;
   40: 
   41: #ifndef USE_FTOS
   42: #ifndef USE_NO_FTOS
   43: /* keep top of FP stack in register. Since most processors have FP
   44:    registers and they are hardly used in gforth, this is usually a
   45:    good idea.  The 88100 has no separate FP regs, but many general
   46:    purpose regs, so it should be ok */
   47: #define USE_FTOS
   48: #endif
   49: #endif
   50: /* I don't do the same for the data stack (i.e. USE_TOS), since this
   51:    loses on processors with few registers. USE_TOS might be defined in
   52:    the processor-specific files */
   53: 
   54: #ifdef DIRECT_THREADED
   55: /* If you want direct threading, write a .h file for your processor! */
   56: /* We could put some stuff here that causes a compile error, but then
   57:    we could not use this file in the other machine.h files */
   58: #endif
   59: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>