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| 1 : | anton | 1.1 | /* common header file |
| 2 : | |||
| 3 : | pazsan | 1.46 | Copyright (C) 1995-2003 Free Software Foundation, Inc. |
| 4 : | anton | 1.1 | |
| 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 : | anton | 1.13 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.1 | */ |
| 21 : | |||
| 22 : | #include "config.h" | ||
| 23 : | anton | 1.18 | #include <stdio.h> |
| 24 : | anton | 1.35 | #include <sys/time.h> |
| 25 : | #include <unistd.h> | ||
| 26 : | anton | 1.1 | |
| 27 : | anton | 1.32 | #if defined(DOUBLY_INDIRECT)||defined(INDIRECT_THREADED)||defined(VM_PROFILING) |
| 28 : | #define NO_DYNAMIC | ||
| 29 : | #endif | ||
| 30 : | |||
| 31 : | anton | 1.1 | #if defined(DOUBLY_INDIRECT) |
| 32 : | # undef DIRECT_THREADED | ||
| 33 : | # undef INDIRECT_THREADED | ||
| 34 : | # define INDIRECT_THREADED | ||
| 35 : | #endif | ||
| 36 : | |||
| 37 : | anton | 1.23 | #if defined(GFORTH_DEBUGGING) |
| 38 : | # undef USE_TOS | ||
| 39 : | # undef USE_FTOS | ||
| 40 : | # define USE_NO_TOS | ||
| 41 : | # define USE_NO_FTOS | ||
| 42 : | #endif | ||
| 43 : | |||
| 44 : | anton | 1.1 | #include <limits.h> |
| 45 : | |||
| 46 : | #if defined(NeXT) | ||
| 47 : | # include <libc.h> | ||
| 48 : | #endif /* NeXT */ | ||
| 49 : | |||
| 50 : | /* symbol indexed constants */ | ||
| 51 : | |||
| 52 : | #define DOCOL 0 | ||
| 53 : | #define DOCON 1 | ||
| 54 : | #define DOVAR 2 | ||
| 55 : | #define DOUSER 3 | ||
| 56 : | #define DODEFER 4 | ||
| 57 : | #define DOFIELD 5 | ||
| 58 : | #define DODOES 6 | ||
| 59 : | #define DOESJUMP 7 | ||
| 60 : | |||
| 61 : | /* the size of the DOESJUMP, which resides between DOES> and the does-code */ | ||
| 62 : | #define DOES_HANDLER_SIZE (2*sizeof(Cell)) | ||
| 63 : | |||
| 64 : | jwilke | 1.6 | #include "machine.h" |
| 65 : | anton | 1.1 | |
| 66 : | /* Forth data types */ | ||
| 67 : | /* Cell and UCell must be the same size as a pointer */ | ||
| 68 : | #define CELL_BITS (sizeof(Cell) * CHAR_BIT) | ||
| 69 : | #define FLAG(b) (-(b)) | ||
| 70 : | #define FILEIO(error) (FLAG(error) & -37) | ||
| 71 : | #define FILEEXIST(error) (FLAG(error) & -38) | ||
| 72 : | |||
| 73 : | #define F_TRUE (FLAG(0==0)) | ||
| 74 : | #define F_FALSE (FLAG(0!=0)) | ||
| 75 : | |||
| 76 : | #ifdef BUGGY_LONG_LONG | ||
| 77 : | typedef struct { | ||
| 78 : | Cell hi; | ||
| 79 : | UCell lo; | ||
| 80 : | } DCell; | ||
| 81 : | |||
| 82 : | typedef struct { | ||
| 83 : | UCell hi; | ||
| 84 : | UCell lo; | ||
| 85 : | } UDCell; | ||
| 86 : | |||
| 87 : | anton | 1.39 | #if SMALL_OFF_T |
| 88 : | #define OFF2UD(o) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(o); _ud;}) | ||
| 89 : | #define UD2OFF(ud) ((ud).lo) | ||
| 90 : | #else /* !SMALL_OFF_T */ | ||
| 91 : | #define OFF2UD(o) ({UDCell _ud; off_t _o=(o); _ud.hi=_o>>CELL_BITS; _ud.lo=(Cell)_o; _ud;}) | ||
| 92 : | anton | 1.36 | #define UD2OFF(ud) ({UDCell _ud=(ud); (((off_t)_ud.hi)<<CELL_BITS)+_ud.lo;}) |
| 93 : | anton | 1.39 | #endif /* !SMALL_OFF_T */ |
| 94 : | anton | 1.1 | #define DZERO ((DCell){0,0}) |
| 95 : | |||
| 96 : | #else /* ! defined(BUGGY_LONG_LONG) */ | ||
| 97 : | |||
| 98 : | /* DCell and UDCell must be twice as large as Cell */ | ||
| 99 : | typedef DOUBLE_CELL_TYPE DCell; | ||
| 100 : | typedef unsigned DOUBLE_CELL_TYPE UDCell; | ||
| 101 : | |||
| 102 : | anton | 1.36 | #define OFF2UD(o) ((UDCell)(o)) |
| 103 : | #define UD2OFF(ud) ((off_t)(ud)) | ||
| 104 : | anton | 1.16 | #define DZERO ((DCell)0) |
| 105 : | |||
| 106 : | #endif /* ! defined(BUGGY_LONG_LONG) */ | ||
| 107 : | |||
| 108 : | anton | 1.1 | typedef union { |
| 109 : | struct { | ||
| 110 : | anton | 1.16 | #if defined(WORDS_BIGENDIAN)||defined(BUGGY_LONG_LONG) |
| 111 : | anton | 1.1 | Cell high; |
| 112 : | UCell low; | ||
| 113 : | #else | ||
| 114 : | UCell low; | ||
| 115 : | Cell high; | ||
| 116 : | crook | 1.20 | #endif |
| 117 : | anton | 1.1 | } cells; |
| 118 : | anton | 1.16 | DCell d; |
| 119 : | UDCell ud; | ||
| 120 : | anton | 1.1 | } Double_Store; |
| 121 : | |||
| 122 : | anton | 1.16 | #define FETCH_DCELL_T(d_,lo,hi,t_) ({ \ |
| 123 : | anton | 1.1 | Double_Store _d; \ |
| 124 : | _d.cells.low = (lo); \ | ||
| 125 : | _d.cells.high = (hi); \ | ||
| 126 : | anton | 1.16 | (d_) = _d.t_; \ |
| 127 : | anton | 1.1 | }) |
| 128 : | |||
| 129 : | anton | 1.16 | #define STORE_DCELL_T(d_,lo,hi,t_) ({ \ |
| 130 : | anton | 1.1 | Double_Store _d; \ |
| 131 : | anton | 1.16 | _d.t_ = (d_); \ |
| 132 : | anton | 1.1 | (lo) = _d.cells.low; \ |
| 133 : | (hi) = _d.cells.high; \ | ||
| 134 : | }) | ||
| 135 : | |||
| 136 : | anton | 1.28 | #define vm_twoCell2d(lo,hi,d_) FETCH_DCELL_T(d_,lo,hi,d); |
| 137 : | #define vm_twoCell2ud(lo,hi,d_) FETCH_DCELL_T(d_,lo,hi,ud); | ||
| 138 : | anton | 1.1 | |
| 139 : | anton | 1.28 | #define vm_d2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,d); |
| 140 : | #define vm_ud2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,ud); | ||
| 141 : | anton | 1.1 | |
| 142 : | typedef Label *Xt; | ||
| 143 : | |||
| 144 : | /* PFA gives the parameter field address corresponding to a cfa */ | ||
| 145 : | #define PFA(cfa) (((Cell *)cfa)+2) | ||
| 146 : | /* PFA1 is a special version for use just after a NEXT1 */ | ||
| 147 : | #define PFA1(cfa) PFA(cfa) | ||
| 148 : | /* CODE_ADDRESS is the address of the code jumped to through the code field */ | ||
| 149 : | #define CODE_ADDRESS(cfa) (*(Xt)(cfa)) | ||
| 150 : | |||
| 151 : | /* DOES_CODE is the Forth code does jumps to */ | ||
| 152 : | #if !defined(DOUBLY_INDIRECT) | ||
| 153 : | # define DOES_CA (symbols[DODOES]) | ||
| 154 : | #else /* defined(DOUBLY_INDIRECT) */ | ||
| 155 : | anton | 1.24 | # define DOES_CA ((Label)&xts[DODOES]) |
| 156 : | anton | 1.1 | #endif /* defined(DOUBLY_INDIRECT) */ |
| 157 : | |||
| 158 : | |||
| 159 : | |||
| 160 : | #define DOES_CODE1(cfa) ((Xt *)(cfa[1])) | ||
| 161 : | /* MAKE_CF creates an appropriate code field at the cfa; | ||
| 162 : | ca is the code address */ | ||
| 163 : | #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca)) | ||
| 164 : | /* make a code field for a defining-word-defined word */ | ||
| 165 : | #define MAKE_DOES_CF(cfa,does_code) ({MAKE_CF(cfa,DOES_CA); \ | ||
| 166 : | ((Cell *)cfa)[1] = (Cell)(does_code);}) | ||
| 167 : | |||
| 168 : | anton | 1.29 | #ifdef GFORTH_DEBUGGING |
| 169 : | anton | 1.30 | #define NAME(string) { saved_ip=ip; asm(""); } |
| 170 : | /* the asm here is to avoid reordering of following stuff above the | ||
| 171 : | assignment; this is an old-style asm (no operands), and therefore | ||
| 172 : | is treated like "asm volatile ..."; i.e., it prevents most | ||
| 173 : | reorderings across itself. We want the assignment above first, | ||
| 174 : | because the stack loads may already cause a stack underflow. */ | ||
| 175 : | anton | 1.29 | #elif DEBUG |
| 176 : | anton | 1.1 | # define NAME(string) fprintf(stderr,"%08lx: "string"\n",(Cell)ip); |
| 177 : | #else | ||
| 178 : | # define NAME(string) | ||
| 179 : | #endif | ||
| 180 : | |||
| 181 : | #define CF(const) (-const-2) | ||
| 182 : | |||
| 183 : | #define CF_NIL -1 | ||
| 184 : | |||
| 185 : | #ifndef FLUSH_ICACHE | ||
| 186 : | #warning flush-icache probably will not work (see manual) | ||
| 187 : | # define FLUSH_ICACHE(addr,size) | ||
| 188 : | anton | 1.45 | #warning no FLUSH_ICACHE, turning off dynamic native code by default |
| 189 : | #undef NO_DYNAMIC_DEFAULT | ||
| 190 : | #define NO_DYNAMIC_DEFAULT 1 | ||
| 191 : | anton | 1.1 | #endif |
| 192 : | |||
| 193 : | #ifdef USE_TOS | ||
| 194 : | anton | 1.14 | #define IF_spTOS(x) x |
| 195 : | anton | 1.1 | #else |
| 196 : | anton | 1.14 | #define IF_spTOS(x) |
| 197 : | #define spTOS (sp[0]) | ||
| 198 : | anton | 1.1 | #endif |
| 199 : | |||
| 200 : | #ifdef USE_FTOS | ||
| 201 : | anton | 1.14 | #define IF_fpTOS(x) x |
| 202 : | anton | 1.1 | #else |
| 203 : | anton | 1.14 | #define IF_fpTOS(x) |
| 204 : | #define fpTOS (fp[0]) | ||
| 205 : | anton | 1.1 | #endif |
| 206 : | |||
| 207 : | anton | 1.15 | #define IF_rpTOS(x) |
| 208 : | #define rpTOS (rp[0]) | ||
| 209 : | |||
| 210 : | anton | 1.10 | typedef struct { |
| 211 : | Address base; /* base address of image (0 if relocatable) */ | ||
| 212 : | UCell checksum; /* checksum of ca's to protect against some | ||
| 213 : | incompatible binary/executable combinations | ||
| 214 : | (0 if relocatable) */ | ||
| 215 : | UCell image_size; /* all sizes in bytes */ | ||
| 216 : | UCell dict_size; | ||
| 217 : | UCell data_stack_size; | ||
| 218 : | UCell fp_stack_size; | ||
| 219 : | UCell return_stack_size; | ||
| 220 : | UCell locals_stack_size; | ||
| 221 : | Xt *boot_entry; /* initial ip for booting (in BOOT) */ | ||
| 222 : | Xt *throw_entry; /* ip after signal (in THROW) */ | ||
| 223 : | Cell unused1; /* possibly tib stack size */ | ||
| 224 : | anton | 1.24 | Label *xt_base; /* base of DOUBLE_INDIRECT xts[], for comp-i.fs */ |
| 225 : | anton | 1.10 | Address data_stack_base; /* this and the following fields are initialized by the loader */ |
| 226 : | Address fp_stack_base; | ||
| 227 : | Address return_stack_base; | ||
| 228 : | Address locals_stack_base; | ||
| 229 : | } ImageHeader; | ||
| 230 : | /* the image-header is created in main.fs */ | ||
| 231 : | |||
| 232 : | anton | 1.1 | Label *engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp); |
| 233 : | anton | 1.42 | Label *engine2(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp); |
| 234 : | Label *engine3(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp); | ||
| 235 : | anton | 1.1 | Address my_alloc(Cell size); |
| 236 : | anton | 1.35 | char *cstr(Char *from, UCell size, int clear); |
| 237 : | anton | 1.11 | char *tilde_cstr(Char *from, UCell size, int clear); |
| 238 : | anton | 1.35 | DCell timeval2us(struct timeval *tvp); |
| 239 : | anton | 1.1 | |
| 240 : | /* dblsub routines */ | ||
| 241 : | DCell dnegate(DCell d1); | ||
| 242 : | UDCell ummul (UCell a, UCell b); | ||
| 243 : | DCell mmul (Cell a, Cell b); | ||
| 244 : | UDCell umdiv (UDCell u, UCell v); | ||
| 245 : | DCell smdiv (DCell num, Cell denom); | ||
| 246 : | DCell fmdiv (DCell num, Cell denom); | ||
| 247 : | |||
| 248 : | pazsan | 1.7 | Cell memcasecmp(const Char *s1, const Char *s2, Cell n); |
| 249 : | anton | 1.1 | |
| 250 : | anton | 1.17 | /* peephole routines */ |
| 251 : | |||
| 252 : | Xt *primtable(Label symbols[], Cell size); | ||
| 253 : | Cell prepare_peephole_table(Xt xts[]); | ||
| 254 : | Xt peephole_opt(Xt xt1, Xt xt2, Cell peeptable); | ||
| 255 : | anton | 1.18 | void vm_print_profile(FILE *file); |
| 256 : | void vm_count_block(Xt *ip); | ||
| 257 : | anton | 1.17 | |
| 258 : | anton | 1.22 | /* dynamic superinstruction stuff */ |
| 259 : | Label compile_prim(Label prim); | ||
| 260 : | anton | 1.33 | void compile_prim1(Cell *start); |
| 261 : | void finish_code(void); | ||
| 262 : | anton | 1.34 | int forget_dyncode(Address code); |
| 263 : | Label decompile_code(Label prim); | ||
| 264 : | anton | 1.17 | |
| 265 : | anton | 1.1 | extern int offset_image; |
| 266 : | anton | 1.5 | extern int die_on_signal; |
| 267 : | anton | 1.10 | extern UCell pagesize; |
| 268 : | extern ImageHeader *gforth_header; | ||
| 269 : | anton | 1.19 | extern Label *vm_prims; |
| 270 : | anton | 1.24 | extern Label *xts; |
| 271 : | anton | 1.25 | extern Cell npriminfos; |
| 272 : | pazsan | 1.2 | |
| 273 : | anton | 1.31 | #ifdef HAS_DEBUG |
| 274 : | extern int debug; | ||
| 275 : | #else | ||
| 276 : | # define debug 0 | ||
| 277 : | #endif | ||
| 278 : | |||
| 279 : | anton | 1.35 | extern Cell *SP; |
| 280 : | extern Float *FP; | ||
| 281 : | extern Address UP; | ||
| 282 : | |||
| 283 : | anton | 1.9 | #ifdef GFORTH_DEBUGGING |
| 284 : | anton | 1.29 | extern Xt *saved_ip; |
| 285 : | anton | 1.9 | extern Cell *rp; |
| 286 : | anton | 1.35 | #endif |
| 287 : | |||
| 288 : | #ifdef NO_IP | ||
| 289 : | extern Label next_code; | ||
| 290 : | #endif | ||
| 291 : | |||
| 292 : | #ifdef HAS_FILE | ||
| 293 : | extern char* fileattr[6]; | ||
| 294 : | extern char* pfileattr[6]; | ||
| 295 : | extern int ufileattr[6]; | ||
| 296 : | anton | 1.9 | #endif |
| 297 : | |||
| 298 : | anton | 1.27 | #ifdef PRINT_SUPER_LENGTHS |
| 299 : | Cell prim_length(Cell prim); | ||
| 300 : | void print_super_lengths(); | ||
| 301 : | #endif | ||
| 302 : | anton | 1.9 | |
| 303 : | pazsan | 1.2 | /* declare all the functions that are missing */ |
| 304 : | #ifndef HAVE_ATANH | ||
| 305 : | extern double atanh(double r1); | ||
| 306 : | extern double asinh(double r1); | ||
| 307 : | extern double acosh(double r1); | ||
| 308 : | #endif | ||
| 309 : | #ifndef HAVE_ECVT | ||
| 310 : | anton | 1.4 | /* extern char* ecvt(double x, int len, int* exp, int* sign);*/ |
| 311 : | pazsan | 1.2 | #endif |
| 312 : | #ifndef HAVE_MEMMOVE | ||
| 313 : | anton | 1.3 | /* extern char *memmove(char *dest, const char *src, long n); */ |
| 314 : | pazsan | 1.2 | #endif |
| 315 : | #ifndef HAVE_POW10 | ||
| 316 : | extern double pow10(double x); | ||
| 317 : | #endif | ||
| 318 : | #ifndef HAVE_STRERROR | ||
| 319 : | extern char *strerror(int err); | ||
| 320 : | #endif | ||
| 321 : | #ifndef HAVE_STRSIGNAL | ||
| 322 : | extern char *strsignal(int sig); | ||
| 323 : | #endif | ||
| 324 : | #ifndef HAVE_STRTOUL | ||
| 325 : | anton | 1.3 | extern unsigned long int strtoul(const char *nptr, char **endptr, int base); |
| 326 : | pazsan | 1.2 | #endif |
| 327 : | |||
| 328 : | |||
| 329 : | pazsan | 1.37 | #define GROUP(x, n) |
|
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