1: /* common header file
2:
3: Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
4:
5: This file is part of Gforth.
6:
7: Gforth is free software; you can redistribute it and/or
8: modify it under the terms of the GNU General Public License
9: as published by the Free Software Foundation; either version 2
10: of the License, or (at your option) any later version.
11:
12: This program is distributed in the hope that it will be useful,
13: but WITHOUT ANY WARRANTY; without even the implied warranty of
14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: GNU General Public License for more details.
16:
17: You should have received a copy of the GNU General Public License
18: along with this program; if not, write to the Free Software
19: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20: */
21:
22: #include "config.h"
23: #include <stdio.h>
24: #include <sys/time.h>
25: #include <unistd.h>
26:
27: #if defined(DOUBLY_INDIRECT)||defined(INDIRECT_THREADED)||defined(VM_PROFILING)
28: #define NO_DYNAMIC
29: #endif
30:
31: #if defined(DOUBLY_INDIRECT)
32: # undef DIRECT_THREADED
33: # undef INDIRECT_THREADED
34: # define INDIRECT_THREADED
35: #endif
36:
37: #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
38: # undef USE_TOS
39: # undef USE_FTOS
40: # undef USE_NO_TOS
41: # undef USE_NO_FTOS
42: # define USE_NO_TOS
43: # define USE_NO_FTOS
44:
45: #define PRIM_I "prim.i"
46: #define PRIM_LAB_I "prim_lab.i"
47: #define PRIM_NAMES_I "prim_names.i"
48: #define PRIM_SUPEREND_I "prim_superend.i"
49: #define PROFILE_I "profile.i"
50: #define PRIM_NUM_I "prim_num.i"
51: #define PRIM_GRP_I "prim_grp.i"
52: #define COSTS_I "costs.i"
53: #define SUPER2_I "super2.i"
54:
55: #else
56: /* gforth-fast or gforth-native */
57:
58: #define PRIM_I "prim-fast.i"
59: #define PRIM_LAB_I "prim_lab-fast.i"
60: #define PRIM_NAMES_I "prim_names-fast.i"
61: #define PRIM_SUPEREND_I "prim_superend-fast.i"
62: #define PROFILE_I "profile-fast.i"
63: #define PRIM_NUM_I "prim_num-fast.i"
64: #define PRIM_GRP_I "prim_grp-fast.i"
65: #define COSTS_I "costs-fast.i"
66: #define SUPER2_I "super2-fast.i"
67:
68: #endif
69:
70:
71:
72: #include <limits.h>
73:
74: #if defined(NeXT)
75: # include <libc.h>
76: #endif /* NeXT */
77:
78: /* symbol indexed constants */
79:
80: #define DOCOL 0
81: #define DOCON 1
82: #define DOVAR 2
83: #define DOUSER 3
84: #define DODEFER 4
85: #define DOFIELD 5
86: #define DODOES 6
87: #define DOESJUMP 7
88:
89: /* the size of the DOESJUMP, which resides between DOES> and the does-code */
90: #define DOES_HANDLER_SIZE (2*sizeof(Cell))
91:
92: #include "machine.h"
93:
94: /* Forth data types */
95: /* Cell and UCell must be the same size as a pointer */
96: #define CELL_BITS (sizeof(Cell) * CHAR_BIT)
97: #define FLAG(b) (-(b))
98: #define FILEIO(error) (FLAG(error) & -37)
99: #define FILEEXIST(error) (FLAG(error) & -38)
100:
101: #define F_TRUE (FLAG(0==0))
102: #define F_FALSE (FLAG(0!=0))
103:
104: #ifdef BUGGY_LONG_LONG
105: typedef struct {
106: Cell hi;
107: UCell lo;
108: } DCell;
109:
110: typedef struct {
111: UCell hi;
112: UCell lo;
113: } UDCell;
114:
115: #if SMALL_OFF_T
116: #define OFF2UD(o) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(o); _ud;})
117: #define UD2OFF(ud) ((ud).lo)
118: #else /* !SMALL_OFF_T */
119: #define OFF2UD(o) ({UDCell _ud; off_t _o=(o); _ud.hi=_o>>CELL_BITS; _ud.lo=(Cell)_o; _ud;})
120: #define UD2OFF(ud) ({UDCell _ud=(ud); (((off_t)_ud.hi)<<CELL_BITS)+_ud.lo;})
121: #endif /* !SMALL_OFF_T */
122: #define DZERO ((DCell){0,0})
123:
124: #else /* ! defined(BUGGY_LONG_LONG) */
125:
126: /* DCell and UDCell must be twice as large as Cell */
127: typedef DOUBLE_CELL_TYPE DCell;
128: typedef unsigned DOUBLE_CELL_TYPE UDCell;
129:
130: #define OFF2UD(o) ((UDCell)(o))
131: #define UD2OFF(ud) ((off_t)(ud))
132: #define DZERO ((DCell)0)
133:
134: #endif /* ! defined(BUGGY_LONG_LONG) */
135:
136: typedef union {
137: struct {
138: #if defined(WORDS_BIGENDIAN)||defined(BUGGY_LONG_LONG)
139: Cell high;
140: UCell low;
141: #else
142: UCell low;
143: Cell high;
144: #endif
145: } cells;
146: DCell d;
147: UDCell ud;
148: } Double_Store;
149:
150: #define FETCH_DCELL_T(d_,lo,hi,t_) ({ \
151: Double_Store _d; \
152: _d.cells.low = (lo); \
153: _d.cells.high = (hi); \
154: (d_) = _d.t_; \
155: })
156:
157: #define STORE_DCELL_T(d_,lo,hi,t_) ({ \
158: Double_Store _d; \
159: _d.t_ = (d_); \
160: (lo) = _d.cells.low; \
161: (hi) = _d.cells.high; \
162: })
163:
164: #define vm_twoCell2d(lo,hi,d_) FETCH_DCELL_T(d_,lo,hi,d);
165: #define vm_twoCell2ud(lo,hi,d_) FETCH_DCELL_T(d_,lo,hi,ud);
166:
167: #define vm_d2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,d);
168: #define vm_ud2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,ud);
169:
170: typedef Label *Xt;
171:
172: /* PFA gives the parameter field address corresponding to a cfa */
173: #define PFA(cfa) (((Cell *)cfa)+2)
174: /* PFA1 is a special version for use just after a NEXT1 */
175: #define PFA1(cfa) PFA(cfa)
176: /* CODE_ADDRESS is the address of the code jumped to through the code field */
177: #define CODE_ADDRESS(cfa) (*(Xt)(cfa))
178:
179: /* DOES_CODE is the Forth code does jumps to */
180: #if !defined(DOUBLY_INDIRECT)
181: # define DOES_CA (symbols[DODOES])
182: #else /* defined(DOUBLY_INDIRECT) */
183: # define DOES_CA ((Label)&xts[DODOES])
184: #endif /* defined(DOUBLY_INDIRECT) */
185:
186:
187:
188: #define DOES_CODE1(cfa) ((Xt *)(cfa[1]))
189: /* MAKE_CF creates an appropriate code field at the cfa;
190: ca is the code address */
191: #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca))
192: /* make a code field for a defining-word-defined word */
193: #define MAKE_DOES_CF(cfa,does_code) ({MAKE_CF(cfa,DOES_CA); \
194: ((Cell *)cfa)[1] = (Cell)(does_code);})
195:
196: #define CF(const) (-const-2)
197:
198: #define CF_NIL -1
199:
200: #ifndef FLUSH_ICACHE
201: #warning flush-icache probably will not work (see manual)
202: # define FLUSH_ICACHE(addr,size)
203: #warning no FLUSH_ICACHE, turning off dynamic native code by default
204: #undef NO_DYNAMIC_DEFAULT
205: #define NO_DYNAMIC_DEFAULT 1
206: #endif
207:
208: #ifdef USE_TOS
209: #define IF_spTOS(x) x
210: #else
211: #define IF_spTOS(x)
212: #define spTOS (sp[0])
213: #endif
214:
215: #ifdef USE_FTOS
216: #define IF_fpTOS(x) x
217: #else
218: #define IF_fpTOS(x)
219: #define fpTOS (fp[0])
220: #endif
221:
222: #define IF_rpTOS(x)
223: #define rpTOS (rp[0])
224:
225: typedef struct {
226: Address base; /* base address of image (0 if relocatable) */
227: UCell checksum; /* checksum of ca's to protect against some
228: incompatible binary/executable combinations
229: (0 if relocatable) */
230: UCell image_size; /* all sizes in bytes */
231: UCell dict_size;
232: UCell data_stack_size;
233: UCell fp_stack_size;
234: UCell return_stack_size;
235: UCell locals_stack_size;
236: Xt *boot_entry; /* initial ip for booting (in BOOT) */
237: Xt *throw_entry; /* ip after signal (in THROW) */
238: Cell unused1; /* possibly tib stack size */
239: Label *xt_base; /* base of DOUBLE_INDIRECT xts[], for comp-i.fs */
240: Address data_stack_base; /* this and the following fields are initialized by the loader */
241: Address fp_stack_base;
242: Address return_stack_base;
243: Address locals_stack_base;
244: } ImageHeader;
245: /* the image-header is created in main.fs */
246:
247: struct Longname {
248: struct Longname *next; /* the link field for old hands */
249: Cell countetc;
250: char name[0];
251: };
252:
253: #define LONGNAME_COUNT(np) ((np)->countetc & (((~((UCell)0))<<3)>>3))
254:
255: struct Cellpair {
256: Cell n1;
257: Cell n2;
258: };
259:
260: struct Cellquad {
261: Cell n1;
262: Cell n2;
263: Cell n3;
264: Cell n4;
265: };
266:
267: #define IOR(flag) ((flag)? -512-errno : 0)
268:
269: Label *engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
270: Label *engine2(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
271: Label *engine3(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
272:
273: /* engine/prim support routines */
274: Address my_alloc(Cell size);
275: char *cstr(Char *from, UCell size, int clear);
276: char *tilde_cstr(Char *from, UCell size, int clear);
277: DCell timeval2us(struct timeval *tvp);
278: void cmove(Char *c_from, Char *c_to, UCell u);
279: void cmove_up(Char *c_from, Char *c_to, UCell u);
280: Cell compare(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
281: struct Longname *listlfind(Char *c_addr, UCell u, struct Longname *longname1);
282: struct Longname *hashlfind(Char *c_addr, UCell u, Cell *a_addr);
283: struct Longname *tablelfind(Char *c_addr, UCell u, Cell *a_addr);
284: UCell hashkey1(Char *c_addr, UCell u, UCell ubits);
285: struct Cellpair parse_white(Char *c_addr1, UCell u1);
286: Cell rename_file(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
287: struct Cellquad read_line(Char *c_addr, UCell u1, Cell wfileid);
288: struct Cellpair file_status(Char *c_addr, UCell u);
289: Cell to_float(Char *c_addr, UCell u, Float *rp);
290: Float v_star(Float *f_addr1, Cell nstride1, Float *f_addr2, Cell nstride2, UCell ucount);
291: void faxpy(Float ra, Float *f_x, Cell nstridex, Float *f_y, Cell nstridey, UCell ucount);
292:
293: /* signal handler stuff */
294: void install_signal_handlers(void);
295: typedef void Sigfunc(int);
296: Sigfunc *bsd_signal(int signo, Sigfunc *func);
297:
298: /* dblsub routines */
299: DCell dnegate(DCell d1);
300: UDCell ummul (UCell a, UCell b);
301: DCell mmul (Cell a, Cell b);
302: UDCell umdiv (UDCell u, UCell v);
303: DCell smdiv (DCell num, Cell denom);
304: DCell fmdiv (DCell num, Cell denom);
305:
306: Cell memcasecmp(const Char *s1, const Char *s2, Cell n);
307:
308: void vm_print_profile(FILE *file);
309: void vm_count_block(Xt *ip);
310:
311: /* dynamic superinstruction stuff */
312: void compile_prim1(Cell *start);
313: void finish_code(void);
314: int forget_dyncode(Address code);
315: Label decompile_code(Label prim);
316:
317: extern int offset_image;
318: extern int die_on_signal;
319: extern UCell pagesize;
320: extern ImageHeader *gforth_header;
321: extern Label *vm_prims;
322: extern Label *xts;
323: extern Cell npriminfos;
324:
325: #ifdef HAS_DEBUG
326: extern int debug;
327: #else
328: # define debug 0
329: #endif
330:
331: extern Cell *SP;
332: extern Float *FP;
333: extern Address UP;
334:
335: #ifdef HAS_FFCALL
336: extern Cell *RP;
337: extern Address LP;
338: extern void engine_callback(Xt* fcall, void * alist);
339: #endif
340:
341: #ifdef GFORTH_DEBUGGING
342: extern Xt *saved_ip;
343: extern Cell *rp;
344: #endif
345:
346: #ifdef NO_IP
347: extern Label next_code;
348: #endif
349:
350: #ifdef HAS_FILE
351: extern char* fileattr[6];
352: extern char* pfileattr[6];
353: extern int ufileattr[6];
354: #endif
355:
356: #ifdef PRINT_SUPER_LENGTHS
357: Cell prim_length(Cell prim);
358: void print_super_lengths();
359: #endif
360:
361: /* declare all the functions that are missing */
362: #ifndef HAVE_ATANH
363: extern double atanh(double r1);
364: extern double asinh(double r1);
365: extern double acosh(double r1);
366: #endif
367: #ifndef HAVE_ECVT
368: /* extern char* ecvt(double x, int len, int* exp, int* sign);*/
369: #endif
370: #ifndef HAVE_MEMMOVE
371: /* extern char *memmove(char *dest, const char *src, long n); */
372: #endif
373: #ifndef HAVE_POW10
374: extern double pow10(double x);
375: #endif
376: #ifndef HAVE_STRERROR
377: extern char *strerror(int err);
378: #endif
379: #ifndef HAVE_STRSIGNAL
380: extern char *strsignal(int sig);
381: #endif
382: #ifndef HAVE_STRTOUL
383: extern unsigned long int strtoul(const char *nptr, char **endptr, int base);
384: #endif
385:
386:
387: #define GROUP(x, n)
388: #define GROUPADD(n)
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