File:  [gforth] / gforth / arch / generic / machine.h
Revision 1.20: download - view: text, annotated - select for diffs
Sun Mar 9 15:16:59 2003 UTC (19 years, 5 months ago) by anton
Branches: MAIN
CVS tags: v0-6-1, v0-6-0, HEAD
updated copyright years

    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) 1995,1998,1999,2003 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   22: */
   23: 
   24: /* define SYSCALL */
   25: 
   26: #ifndef SYSCALL
   27: #define SYSCALL
   28: #endif
   29: 
   30: #ifndef SYSSIGNALS
   31: #define SYSSIGNALS
   32: #endif
   33: 
   34: #ifndef USE_FTOS
   35: #ifndef USE_NO_FTOS
   36: /* keep top of FP stack in register. Since most processors have FP
   37:    registers and they are hardly used in gforth, this is usually a
   38:    good idea.  The 88100 has no separate FP regs, but many general
   39:    purpose regs, so it should be ok */
   40: #define USE_FTOS
   41: #endif
   42: #endif
   43: /* I don't do the same for the data stack (i.e. USE_TOS), since this
   44:    loses on processors with few registers. USE_TOS might be defined in
   45:    the processor-specific files */
   46: 
   47: #ifndef INDIRECT_THREADED
   48: #ifndef DIRECT_THREADED
   49: #define DIRECT_THREADED
   50: #endif
   51: #endif
   52: 
   53: /* Types: these types are used as Forth's internal types */
   54: 
   55: /* define this if IEEE singles and doubles are available as C data types */
   56: #define IEEE_FP
   57: 
   58: /* the IEEE types are used only for loading and storing */
   59: /* the IEEE double precision type */
   60: typedef double DFloat;
   61: /* the IEEE single precision type */
   62: typedef float SFloat;
   63: 
   64: typedef CELL_TYPE Cell;
   65: typedef unsigned CELL_TYPE UCell;
   66: typedef Cell Bool;
   67: typedef unsigned char Char;
   68: typedef double Float;
   69: typedef Char *Address;
   70: 
   71: #if defined(DOUBLY_INDIRECT)
   72: typedef void **Label;
   73: #else /* !defined(DOUBLY_INDIRECT) */
   74: typedef void *Label;
   75: #endif /* !defined(DOUBLY_INDIRECT) */
   76: 
   77: /* feature defines, these setting should be identical to the ones in machpc.fs */
   78: 
   79: #define HAS_DCOMPS
   80: #define HAS_FILE
   81: #define HAS_FLOATING
   82: #define HAS_GLOCALS
   83: #define HAS_HASH
   84: #define HAS_OS
   85: #define HAS_XCONDS
   86: #define HAS_STANDARDTHREADING
   87: #define HAS_DEBUG
   88: #ifndef HAS_PEEPHOLE
   89: #define HAS_PEEPHOLE
   90: #endif
   91: 
   92: #define RELINFOBITS	8

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