Annotation of gforth/arch/generic/machine.h, revision 1.36
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:
1.36 ! anton 5: Copyright (C) 1995,1998,1999,2003,2007,2008,2010,2012 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:
1.34 anton 50: #ifndef CLOBBER_TOS_WORKAROUND_START
51: #define CLOBBER_TOS_WORKAROUND_START
52: #define CLOBBER_TOS_WORKAROUND_END
53: #endif
54:
1.17 anton 55: #ifndef INDIRECT_THREADED
56: #ifndef DIRECT_THREADED
57: #define DIRECT_THREADED
58: #endif
1.1 jwilke 59: #endif
1.3 pazsan 60:
61: /* Types: these types are used as Forth's internal types */
62:
63: /* define this if IEEE singles and doubles are available as C data types */
64: #define IEEE_FP
65:
66: /* the IEEE types are used only for loading and storing */
67: /* the IEEE double precision type */
68: typedef double DFloat;
69: /* the IEEE single precision type */
70: typedef float SFloat;
71:
72: typedef CELL_TYPE Cell;
73: typedef unsigned CELL_TYPE UCell;
74: typedef Cell Bool;
75: typedef unsigned char Char;
76: typedef double Float;
77: typedef Char *Address;
78:
79: #if defined(DOUBLY_INDIRECT)
80: typedef void **Label;
81: #else /* !defined(DOUBLY_INDIRECT) */
82: typedef void *Label;
83: #endif /* !defined(DOUBLY_INDIRECT) */
1.1 jwilke 84:
1.15 jwilke 85: /* feature defines, these setting should be identical to the ones in machpc.fs */
1.4 pazsan 86:
1.24 pazsan 87: #ifndef STANDALONE
1.30 anton 88: /* #warning hosted system */
1.4 pazsan 89: #define HAS_FILE
90: #define HAS_FLOATING
91: #define HAS_OS
1.10 pazsan 92: #define HAS_DEBUG
1.25 pazsan 93: #define HAS_GLOCALS
94: #define HAS_HASH
1.16 jwilke 95: #ifndef HAS_PEEPHOLE
1.15 jwilke 96: #define HAS_PEEPHOLE
1.16 jwilke 97: #endif
1.24 pazsan 98: #else
99: #warning standalone system
100: #undef HAS_FILE
101: #undef HAS_FLOATING
102: #undef HAS_OS
103: #undef HAS_DEBUG
1.25 pazsan 104: #undef HAS_GLOCALS
105: #undef HAS_HASH
1.26 pazsan 106: #define HAS_F83HEADERSTRING
1.25 pazsan 107: #ifndef PUTC
1.27 pazsan 108: # define PUTC(x) emit_char(x)
1.25 pazsan 109: #endif
110: #ifndef TYPE
1.27 pazsan 111: # define TYPE(x, l) type_chars(x, l)
1.25 pazsan 112: #endif
1.24 pazsan 113: #endif
114: #define HAS_DCOMPS
115: #define HAS_XCONDS
116: #define HAS_STANDARDTHREADING
1.6 pazsan 117:
1.32 anton 118: #if SIZEOF_CHAR_P==8
119: #define HAS_64BIT
120: #endif
121:
1.35 pazsan 122: #define HAS_OBJECTS
123:
1.6 pazsan 124: #define RELINFOBITS 8
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