Annotation of gforth/arch/generic/machine.h, revision 1.33
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:
1.33 ! anton 5: Copyright (C) 1995,1998,1999,2003,2007,2008,2010 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
1.29 anton 11: as published by the Free Software Foundation, either version 3
1.1 jwilke 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
1.29 anton 20: along with this program; if not, see http://www.gnu.org/licenses/.
1.1 jwilke 21: */
22:
1.2 pazsan 23: /* define SYSCALL */
24:
25: #ifndef SYSCALL
26: #define SYSCALL
27: #endif
28:
1.6 pazsan 29: #ifndef SYSSIGNALS
30: #define SYSSIGNALS
31: #endif
32:
1.1 jwilke 33: #ifndef USE_FTOS
34: #ifndef USE_NO_FTOS
35: /* keep top of FP stack in register. Since most processors have FP
36: registers and they are hardly used in gforth, this is usually a
37: good idea. The 88100 has no separate FP regs, but many general
38: purpose regs, so it should be ok */
39: #define USE_FTOS
40: #endif
41: #endif
1.23 anton 42:
43: #ifndef USE_TOS
44: #ifndef USE_NO_TOS
45: /* keep top of data stack in register. Usually a good idea unless registers are very scarce */
46: #define USE_TOS
47: #endif
48: #endif
1.1 jwilke 49:
1.17 anton 50: #ifndef INDIRECT_THREADED
51: #ifndef DIRECT_THREADED
52: #define DIRECT_THREADED
53: #endif
1.1 jwilke 54: #endif
1.3 pazsan 55:
56: /* Types: these types are used as Forth's internal types */
57:
58: /* define this if IEEE singles and doubles are available as C data types */
59: #define IEEE_FP
60:
61: /* the IEEE types are used only for loading and storing */
62: /* the IEEE double precision type */
63: typedef double DFloat;
64: /* the IEEE single precision type */
65: typedef float SFloat;
66:
67: typedef CELL_TYPE Cell;
68: typedef unsigned CELL_TYPE UCell;
69: typedef Cell Bool;
70: typedef unsigned char Char;
71: typedef double Float;
72: typedef Char *Address;
73:
74: #if defined(DOUBLY_INDIRECT)
75: typedef void **Label;
76: #else /* !defined(DOUBLY_INDIRECT) */
77: typedef void *Label;
78: #endif /* !defined(DOUBLY_INDIRECT) */
1.1 jwilke 79:
1.15 jwilke 80: /* feature defines, these setting should be identical to the ones in machpc.fs */
1.4 pazsan 81:
1.24 pazsan 82: #ifndef STANDALONE
1.30 anton 83: /* #warning hosted system */
1.4 pazsan 84: #define HAS_FILE
85: #define HAS_FLOATING
86: #define HAS_OS
1.10 pazsan 87: #define HAS_DEBUG
1.25 pazsan 88: #define HAS_GLOCALS
89: #define HAS_HASH
1.16 jwilke 90: #ifndef HAS_PEEPHOLE
1.15 jwilke 91: #define HAS_PEEPHOLE
1.16 jwilke 92: #endif
1.24 pazsan 93: #else
94: #warning standalone system
95: #undef HAS_FILE
96: #undef HAS_FLOATING
97: #undef HAS_OS
98: #undef HAS_DEBUG
1.25 pazsan 99: #undef HAS_GLOCALS
100: #undef HAS_HASH
1.26 pazsan 101: #define HAS_F83HEADERSTRING
1.25 pazsan 102: #ifndef PUTC
1.27 pazsan 103: # define PUTC(x) emit_char(x)
1.25 pazsan 104: #endif
105: #ifndef TYPE
1.27 pazsan 106: # define TYPE(x, l) type_chars(x, l)
1.25 pazsan 107: #endif
1.24 pazsan 108: #endif
109: #define HAS_DCOMPS
110: #define HAS_XCONDS
111: #define HAS_STANDARDTHREADING
1.6 pazsan 112:
1.32 anton 113: #if SIZEOF_CHAR_P==8
114: #define HAS_64BIT
115: #endif
116:
1.6 pazsan 117: #define RELINFOBITS 8
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