Annotation of gforth/arch/generic/machine.h, revision 1.15

1.1       jwilke      1: /*
                      2:   This is a generic file for 32-bit machines with IEEE FP arithmetic (no VMS).
                      3:   It only supports indirect threading.
                      4: 
1.11      anton       5:   Copyright (C) 1995,1998,1999 Free Software Foundation, Inc.
1.1       jwilke      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
1.12      anton      21:   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1       jwilke     22: */
                     23: 
1.7       anton      24: #ifndef THREADING_SCHEME
                     25: #define THREADING_SCHEME 6
                     26: #endif
                     27: 
1.8       anton      28: #ifdef GFORTH_DEBUGGING
                     29: /* schedule the ip update after the rest of the primitive;
                     30:    never mind speed */
                     31: #undef THREADING_SCHEME
                     32: #ifdef DIRECT_THREADED
                     33: #define THREADING_SCHEME 10
                     34: #else
                     35: #define THREADING_SCHEME 8
                     36: #endif /* DIRECT_THREADED */
                     37: #endif /* GFORTH_DEBUGGING */
                     38: 
                     39: 
1.2       pazsan     40: /* define SYSCALL */
                     41: 
                     42: #ifndef SYSCALL
                     43: #define SYSCALL
                     44: #endif
                     45: 
1.6       pazsan     46: #ifndef SYSSIGNALS
                     47: #define SYSSIGNALS
                     48: #endif
                     49: 
1.1       jwilke     50: #ifndef USE_FTOS
                     51: #ifndef USE_NO_FTOS
                     52: /* keep top of FP stack in register. Since most processors have FP
                     53:    registers and they are hardly used in gforth, this is usually a
                     54:    good idea.  The 88100 has no separate FP regs, but many general
                     55:    purpose regs, so it should be ok */
                     56: #define USE_FTOS
                     57: #endif
                     58: #endif
                     59: /* I don't do the same for the data stack (i.e. USE_TOS), since this
                     60:    loses on processors with few registers. USE_TOS might be defined in
                     61:    the processor-specific files */
                     62: 
                     63: #ifdef DIRECT_THREADED
                     64: /* If you want direct threading, write a .h file for your processor! */
                     65: /* We could put some stuff here that causes a compile error, but then
                     66:    we could not use this file in the other machine.h files */
                     67: #endif
1.3       pazsan     68: 
                     69: /* Types: these types are used as Forth's internal types */
                     70: 
                     71: /* define this if IEEE singles and doubles are available as C data types */
                     72: #define IEEE_FP
                     73: 
                     74: /* the IEEE types are used only for loading and storing */
                     75: /* the IEEE double precision type */
                     76: typedef double DFloat;
                     77: /* the IEEE single precision type */
                     78: typedef float SFloat;
                     79: 
                     80: typedef CELL_TYPE Cell;
                     81: typedef unsigned CELL_TYPE UCell;
                     82: typedef Cell Bool;
                     83: typedef unsigned char Char;
                     84: typedef double Float;
                     85: typedef Char *Address;
                     86: 
                     87: #if defined(DOUBLY_INDIRECT)
                     88: typedef void **Label;
                     89: #else /* !defined(DOUBLY_INDIRECT) */
                     90: typedef void *Label;
                     91: #endif /* !defined(DOUBLY_INDIRECT) */
1.1       jwilke     92: 
1.15    ! jwilke     93: /* feature defines, these setting should be identical to the ones in machpc.fs */
1.4       pazsan     94: 
                     95: #define HAS_DCOMPS
                     96: #define HAS_FILE
                     97: #define HAS_FLOATING
                     98: #define HAS_GLOCALS
                     99: #define HAS_HASH
                    100: #define HAS_OS
                    101: #define HAS_XCONDS
1.9       jwilke    102: #define HAS_STANDARDTHREADING
1.10      pazsan    103: #define HAS_DEBUG
1.15    ! jwilke    104: #define HAS_PEEPHOLE
1.6       pazsan    105: 
                    106: #define RELINFOBITS    8

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