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| 1 : | anton | 1.16 | \ converts primitives to, e.g., C code |
| 2 : | |||
| 3 : | anton | 1.47 | \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
| 4 : | anton | 1.16 | |
| 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 | 1.48 | \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.16 | |
| 21 : | |||
| 22 : | anton | 1.71 | \ This is not very nice (hard limits, no checking, assumes 1 chars = 1). |
| 23 : | \ And it grew even worse when it aged. | ||
| 24 : | anton | 1.1 | |
| 25 : | \ Optimizations: | ||
| 26 : | \ superfluous stores are removed. GCC removes the superfluous loads by itself | ||
| 27 : | \ TOS and FTOS can be kept in register( variable)s. | ||
| 28 : | \ | ||
| 29 : | \ Problems: | ||
| 30 : | \ The TOS optimization is somewhat hairy. The problems by example: | ||
| 31 : | \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w; | ||
| 32 : | \ The store is not superfluous although the earlier opt. would think so | ||
| 33 : | \ Alternatively: sp[0]=TOS; w=TOS; sp-=1; TOS=w; | ||
| 34 : | \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */ | ||
| 35 : | \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */ | ||
| 36 : | \ 4) ( -- ): /* but here they are unnecessary */ | ||
| 37 : | \ 5) Words that call NEXT themselves have to be done very carefully. | ||
| 38 : | \ | ||
| 39 : | \ To do: | ||
| 40 : | pazsan | 1.8 | \ add the store optimization for doubles |
| 41 : | anton | 1.1 | \ regarding problem 1 above: It would be better (for over) to implement |
| 42 : | \ the alternative | ||
| 43 : | anton | 1.80 | \ store optimization for combined instructions. |
| 44 : | |||
| 45 : | \ Design Uglyness: | ||
| 46 : | |||
| 47 : | \ - global state (values, variables) in connection with combined instructions. | ||
| 48 : | |||
| 49 : | \ - index computation is different for instruction-stream and the | ||
| 50 : | \ stacks; there are two mechanisms for dealing with that | ||
| 51 : | \ (stack-in-index-xt and a test for stack==instruction-stream); there | ||
| 52 : | \ should be only one. | ||
| 53 : | anton | 1.1 | |
| 54 : | pazsan | 1.3 | warnings off |
| 55 : | |||
| 56 : | anton | 1.49 | : struct% struct ; \ struct is redefined in gray |
| 57 : | |||
| 58 : | jwilke | 1.39 | include ./gray.fs |
| 59 : | anton | 1.1 | |
| 60 : | anton | 1.69 | 32 constant max-effect \ number of things on one side of a stack effect |
| 61 : | anton | 1.71 | 4 constant max-stacks \ the max. number of stacks (including inst-stream). |
| 62 : | anton | 1.1 | 255 constant maxchar |
| 63 : | maxchar 1+ constant eof-char | ||
| 64 : | anton | 1.17 | #tab constant tab-char |
| 65 : | #lf constant nl-char | ||
| 66 : | anton | 1.1 | |
| 67 : | anton | 1.18 | variable rawinput \ pointer to next character to be scanned |
| 68 : | variable endrawinput \ pointer to the end of the input (the char after the last) | ||
| 69 : | variable cookedinput \ pointer to the next char to be parsed | ||
| 70 : | anton | 1.17 | variable line \ line number of char pointed to by input |
| 71 : | anton | 1.65 | variable line-start \ pointer to start of current line (for error messages) |
| 72 : | 0 line ! | ||
| 73 : | anton | 1.17 | 2variable filename \ filename of original input file |
| 74 : | 0 0 filename 2! | ||
| 75 : | pazsan | 1.25 | 2variable f-comment |
| 76 : | 0 0 f-comment 2! | ||
| 77 : | anton | 1.17 | variable skipsynclines \ are sync lines ("#line ...") invisible to the parser? |
| 78 : | skipsynclines on | ||
| 79 : | anton | 1.1 | |
| 80 : | anton | 1.72 | : th ( addr1 n -- addr2 ) |
| 81 : | cells + ; | ||
| 82 : | |||
| 83 : | : holds ( addr u -- ) | ||
| 84 : | \ like HOLD, but for a string | ||
| 85 : | tuck + swap 0 +do | ||
| 86 : | 1- dup c@ hold | ||
| 87 : | loop | ||
| 88 : | drop ; | ||
| 89 : | anton | 1.71 | |
| 90 : | anton | 1.82 | : insert-wordlist { c-addr u wordlist xt -- } |
| 91 : | anton | 1.81 | \ adds name "addr u" to wordlist using defining word xt |
| 92 : | \ xt may cause additional stack effects | ||
| 93 : | get-current >r wordlist set-current | ||
| 94 : | c-addr u nextname xt execute | ||
| 95 : | r> set-current ; | ||
| 96 : | |||
| 97 : | anton | 1.1 | : start ( -- addr ) |
| 98 : | anton | 1.18 | cookedinput @ ; |
| 99 : | anton | 1.1 | |
| 100 : | : end ( addr -- addr u ) | ||
| 101 : | anton | 1.18 | cookedinput @ over - ; |
| 102 : | anton | 1.1 | |
| 103 : | anton | 1.71 | : print-error-line ( -- ) |
| 104 : | \ print the current line and position | ||
| 105 : | line-start @ endrawinput @ over - 2dup nl-char scan drop nip ( start end ) | ||
| 106 : | over - type cr | ||
| 107 : | line-start @ rawinput @ over - typewhite ." ^" cr ; | ||
| 108 : | |||
| 109 : | : ?print-error { f addr u -- } | ||
| 110 : | f ?not? if | ||
| 111 : | outfile-id >r try | ||
| 112 : | stderr to outfile-id | ||
| 113 : | filename 2@ type ." :" line @ 0 .r ." : " addr u type cr | ||
| 114 : | print-error-line | ||
| 115 : | 0 | ||
| 116 : | recover endtry | ||
| 117 : | r> to outfile-id throw | ||
| 118 : | abort | ||
| 119 : | endif ; | ||
| 120 : | |||
| 121 : | anton | 1.63 | : quote ( -- ) |
| 122 : | [char] " emit ; | ||
| 123 : | |||
| 124 : | anton | 1.72 | variable output \ xt ( -- ) of output word for simple primitives |
| 125 : | variable output-combined \ xt ( -- ) of output word for combined primitives | ||
| 126 : | anton | 1.1 | |
| 127 : | anton | 1.49 | struct% |
| 128 : | anton | 1.71 | cell% field stack-number \ the number of this stack |
| 129 : | anton | 1.49 | cell% 2* field stack-pointer \ stackpointer name |
| 130 : | anton | 1.74 | cell% field stack-type \ name for default type of stack items |
| 131 : | anton | 1.53 | cell% field stack-in-index-xt \ ( in-size item -- in-index ) |
| 132 : | anton | 1.49 | end-struct stack% |
| 133 : | |||
| 134 : | anton | 1.53 | struct% |
| 135 : | cell% 2* field item-name \ name, excluding stack prefixes | ||
| 136 : | cell% field item-stack \ descriptor for the stack used, 0 is default | ||
| 137 : | cell% field item-type \ descriptor for the item type | ||
| 138 : | cell% field item-offset \ offset in stack items, 0 for the deepest element | ||
| 139 : | anton | 1.66 | cell% field item-first \ true if this is the first occurence of the item |
| 140 : | anton | 1.53 | end-struct item% |
| 141 : | |||
| 142 : | struct% | ||
| 143 : | cell% 2* field type-c-name | ||
| 144 : | cell% field type-stack \ default stack | ||
| 145 : | cell% field type-size \ size of type in stack items | ||
| 146 : | cell% field type-fetch \ xt of fetch code generator ( item -- ) | ||
| 147 : | cell% field type-store \ xt of store code generator ( item -- ) | ||
| 148 : | end-struct type% | ||
| 149 : | |||
| 150 : | anton | 1.72 | variable next-stack-number 0 next-stack-number ! |
| 151 : | create stacks max-stacks cells allot \ array of stacks | ||
| 152 : | |||
| 153 : | anton | 1.53 | : stack-in-index ( in-size item -- in-index ) |
| 154 : | item-offset @ - 1- ; | ||
| 155 : | |||
| 156 : | : inst-in-index ( in-size item -- in-index ) | ||
| 157 : | nip dup item-offset @ swap item-type @ type-size @ + 1- ; | ||
| 158 : | |||
| 159 : | anton | 1.92 | : make-stack ( addr-ptr u1 type "stack-name" -- ) |
| 160 : | next-stack-number @ max-stacks < s" too many stacks" ?print-error | ||
| 161 : | anton | 1.49 | create stack% %allot >r |
| 162 : | anton | 1.72 | r@ stacks next-stack-number @ th ! |
| 163 : | anton | 1.92 | next-stack-number @ r@ stack-number ! |
| 164 : | 1 next-stack-number +! | ||
| 165 : | anton | 1.74 | r@ stack-type ! |
| 166 : | anton | 1.53 | save-mem r@ stack-pointer 2! |
| 167 : | ['] stack-in-index r> stack-in-index-xt ! ; | ||
| 168 : | anton | 1.49 | |
| 169 : | anton | 1.92 | : map-stacks { xt -- } |
| 170 : | \ perform xt for all stacks except inst-stream | ||
| 171 : | next-stack-number @ 1 +do | ||
| 172 : | stacks i th @ xt execute | ||
| 173 : | loop ; | ||
| 174 : | |||
| 175 : | anton | 1.49 | \ stack items |
| 176 : | |||
| 177 : | : init-item ( addr u addr1 -- ) | ||
| 178 : | \ initialize item at addr1 with name addr u | ||
| 179 : | \ !! remove stack prefix | ||
| 180 : | dup item% %size erase | ||
| 181 : | item-name 2! ; | ||
| 182 : | |||
| 183 : | anton | 1.64 | : map-items { addr end xt -- } |
| 184 : | \ perform xt for all items in array addr...end | ||
| 185 : | end addr ?do | ||
| 186 : | i xt execute | ||
| 187 : | item% %size +loop ; | ||
| 188 : | |||
| 189 : | anton | 1.77 | \ types |
| 190 : | |||
| 191 : | : print-type-prefix ( type -- ) | ||
| 192 : | body> >head name>string type ; | ||
| 193 : | |||
| 194 : | anton | 1.49 | \ various variables for storing stuff of one primitive |
| 195 : | anton | 1.1 | |
| 196 : | anton | 1.69 | struct% |
| 197 : | cell% 2* field prim-name | ||
| 198 : | cell% 2* field prim-wordset | ||
| 199 : | cell% 2* field prim-c-name | ||
| 200 : | cell% 2* field prim-doc | ||
| 201 : | cell% 2* field prim-c-code | ||
| 202 : | cell% 2* field prim-forth-code | ||
| 203 : | cell% 2* field prim-stack-string | ||
| 204 : | anton | 1.82 | cell% field prim-num \ ordinal number |
| 205 : | anton | 1.75 | cell% field prim-items-wordlist \ unique items |
| 206 : | anton | 1.69 | item% max-effect * field prim-effect-in |
| 207 : | item% max-effect * field prim-effect-out | ||
| 208 : | cell% field prim-effect-in-end | ||
| 209 : | cell% field prim-effect-out-end | ||
| 210 : | anton | 1.71 | cell% max-stacks * field prim-stacks-in \ number of in items per stack |
| 211 : | cell% max-stacks * field prim-stacks-out \ number of out items per stack | ||
| 212 : | anton | 1.69 | end-struct prim% |
| 213 : | |||
| 214 : | anton | 1.70 | : make-prim ( -- prim ) |
| 215 : | prim% %alloc { p } | ||
| 216 : | s" " p prim-doc 2! s" " p prim-forth-code 2! s" " p prim-wordset 2! | ||
| 217 : | p ; | ||
| 218 : | |||
| 219 : | anton | 1.79 | 0 value prim \ in combined prims either combined or a part |
| 220 : | 0 value combined \ in combined prims the combined prim | ||
| 221 : | variable in-part \ true if processing a part | ||
| 222 : | in-part off | ||
| 223 : | |||
| 224 : | 1000 constant max-combined | ||
| 225 : | create combined-prims max-combined cells allot | ||
| 226 : | variable num-combined | ||
| 227 : | |||
| 228 : | anton | 1.81 | table constant combinations |
| 229 : | \ the keys are the sequences of pointers to primitives | ||
| 230 : | |||
| 231 : | anton | 1.79 | create current-depth max-stacks cells allot |
| 232 : | create max-depth max-stacks cells allot | ||
| 233 : | create min-depth max-stacks cells allot | ||
| 234 : | anton | 1.69 | |
| 235 : | anton | 1.71 | wordlist constant primitives |
| 236 : | |||
| 237 : | : create-prim ( prim -- ) | ||
| 238 : | anton | 1.82 | dup prim-name 2@ primitives ['] constant insert-wordlist ; |
| 239 : | anton | 1.71 | |
| 240 : | : stack-in ( stack -- addr ) | ||
| 241 : | \ address of number of stack items in effect in | ||
| 242 : | stack-number @ cells prim prim-stacks-in + ; | ||
| 243 : | |||
| 244 : | : stack-out ( stack -- addr ) | ||
| 245 : | \ address of number of stack items in effect out | ||
| 246 : | stack-number @ cells prim prim-stacks-out + ; | ||
| 247 : | |||
| 248 : | anton | 1.69 | \ global vars |
| 249 : | anton | 1.17 | variable c-line |
| 250 : | 2variable c-filename | ||
| 251 : | variable name-line | ||
| 252 : | 2variable name-filename | ||
| 253 : | 2variable last-name-filename | ||
| 254 : | pazsan | 1.30 | Variable function-number 0 function-number ! |
| 255 : | anton | 1.1 | |
| 256 : | \ a few more set ops | ||
| 257 : | |||
| 258 : | : bit-equivalent ( w1 w2 -- w3 ) | ||
| 259 : | xor invert ; | ||
| 260 : | |||
| 261 : | : complement ( set1 -- set2 ) | ||
| 262 : | empty ['] bit-equivalent binary-set-operation ; | ||
| 263 : | |||
| 264 : | anton | 1.80 | \ stack access stuff |
| 265 : | anton | 1.79 | |
| 266 : | : normal-stack-access ( n stack -- ) | ||
| 267 : | anton | 1.49 | stack-pointer 2@ type |
| 268 : | dup | ||
| 269 : | if | ||
| 270 : | ." [" 0 .r ." ]" | ||
| 271 : | else | ||
| 272 : | drop ." TOS" | ||
| 273 : | endif ; | ||
| 274 : | anton | 1.1 | |
| 275 : | anton | 1.80 | \ forward declaration for inst-stream (breaks cycle in definitions) |
| 276 : | defer inst-stream-f ( -- stack ) | ||
| 277 : | |||
| 278 : | anton | 1.79 | : part-stack-access { n stack -- } |
| 279 : | anton | 1.80 | \ print _<stack><x>, x=inst-stream? n : maxdepth-currentdepth-n-1 |
| 280 : | anton | 1.79 | ." _" stack stack-pointer 2@ type |
| 281 : | stack stack-number @ { stack# } | ||
| 282 : | anton | 1.80 | current-depth stack# th @ n + { access-depth } |
| 283 : | stack inst-stream-f = if | ||
| 284 : | access-depth | ||
| 285 : | else | ||
| 286 : | combined prim-stacks-in stack# th @ | ||
| 287 : | assert( dup max-depth stack# th @ = ) | ||
| 288 : | access-depth - 1- | ||
| 289 : | endif | ||
| 290 : | anton | 1.79 | 0 .r ; |
| 291 : | |||
| 292 : | : stack-access ( n stack -- ) | ||
| 293 : | \ print a stack access at index n of stack | ||
| 294 : | in-part @ if | ||
| 295 : | part-stack-access | ||
| 296 : | else | ||
| 297 : | normal-stack-access | ||
| 298 : | endif ; | ||
| 299 : | |||
| 300 : | anton | 1.53 | : item-in-index { item -- n } |
| 301 : | anton | 1.49 | \ n is the index of item (in the in-effect) |
| 302 : | anton | 1.53 | item item-stack @ dup >r stack-in @ ( in-size r:stack ) |
| 303 : | item r> stack-in-index-xt @ execute ; | ||
| 304 : | anton | 1.1 | |
| 305 : | anton | 1.78 | : item-stack-type-name ( item -- addr u ) |
| 306 : | item-stack @ stack-type @ type-c-name 2@ ; | ||
| 307 : | |||
| 308 : | anton | 1.1 | : fetch-single ( item -- ) |
| 309 : | anton | 1.49 | \ fetch a single stack item from its stack |
| 310 : | anton | 1.1 | >r |
| 311 : | pazsan | 1.8 | r@ item-name 2@ type |
| 312 : | anton | 1.78 | ." = vm_" r@ item-stack-type-name type |
| 313 : | anton | 1.77 | ." 2" r@ item-type @ print-type-prefix ." (" |
| 314 : | anton | 1.49 | r@ item-in-index r@ item-stack @ stack-access |
| 315 : | anton | 1.77 | ." );" cr |
| 316 : | anton | 1.1 | rdrop ; |
| 317 : | |||
| 318 : | : fetch-double ( item -- ) | ||
| 319 : | anton | 1.49 | \ fetch a double stack item from its stack |
| 320 : | anton | 1.1 | >r |
| 321 : | anton | 1.78 | ." vm_two" |
| 322 : | r@ item-stack-type-name type ." 2" | ||
| 323 : | r@ item-type @ print-type-prefix ." (" | ||
| 324 : | anton | 1.20 | r@ item-name 2@ type ." , " |
| 325 : | anton | 1.61 | r@ item-in-index r@ item-stack @ 2dup ." (Cell)" stack-access |
| 326 : | ." , " -1 under+ ." (Cell)" stack-access | ||
| 327 : | anton | 1.20 | ." );" cr |
| 328 : | anton | 1.1 | rdrop ; |
| 329 : | |||
| 330 : | anton | 1.49 | : same-as-in? ( item -- f ) |
| 331 : | \ f is true iff the offset and stack of item is the same as on input | ||
| 332 : | anton | 1.1 | >r |
| 333 : | anton | 1.74 | r@ item-first @ if |
| 334 : | rdrop false exit | ||
| 335 : | endif | ||
| 336 : | anton | 1.75 | r@ item-name 2@ prim prim-items-wordlist @ search-wordlist 0= abort" bug" |
| 337 : | anton | 1.1 | execute @ |
| 338 : | dup r@ = | ||
| 339 : | if \ item first appeared in output | ||
| 340 : | drop false | ||
| 341 : | else | ||
| 342 : | anton | 1.49 | dup item-stack @ r@ item-stack @ = |
| 343 : | swap item-offset @ r@ item-offset @ = and | ||
| 344 : | anton | 1.1 | endif |
| 345 : | rdrop ; | ||
| 346 : | |||
| 347 : | anton | 1.49 | : item-out-index ( item -- n ) |
| 348 : | \ n is the index of item (in the in-effect) | ||
| 349 : | >r r@ item-stack @ stack-out @ r> item-offset @ - 1- ; | ||
| 350 : | pazsan | 1.31 | |
| 351 : | anton | 1.1 | : really-store-single ( item -- ) |
| 352 : | >r | ||
| 353 : | anton | 1.77 | r@ item-out-index r@ item-stack @ stack-access ." = vm_" |
| 354 : | r@ item-type @ print-type-prefix ." 2" | ||
| 355 : | anton | 1.78 | r@ item-stack-type-name type ." (" |
| 356 : | anton | 1.77 | r@ item-name 2@ type ." );" |
| 357 : | anton | 1.1 | rdrop ; |
| 358 : | |||
| 359 : | : store-single ( item -- ) | ||
| 360 : | >r | ||
| 361 : | anton | 1.49 | r@ same-as-in? |
| 362 : | anton | 1.1 | if |
| 363 : | anton | 1.49 | r@ item-in-index 0= r@ item-out-index 0= xor |
| 364 : | anton | 1.1 | if |
| 365 : | anton | 1.49 | ." IF_" r@ item-stack @ stack-pointer 2@ type |
| 366 : | ." TOS(" r@ really-store-single ." );" cr | ||
| 367 : | anton | 1.1 | endif |
| 368 : | else | ||
| 369 : | r@ really-store-single cr | ||
| 370 : | endif | ||
| 371 : | rdrop ; | ||
| 372 : | |||
| 373 : | : store-double ( item -- ) | ||
| 374 : | \ !! store optimization is not performed, because it is not yet needed | ||
| 375 : | >r | ||
| 376 : | anton | 1.78 | ." vm_" |
| 377 : | r@ item-type @ print-type-prefix ." 2two" | ||
| 378 : | r@ item-stack-type-name type ." (" | ||
| 379 : | r@ item-name 2@ type ." , " | ||
| 380 : | anton | 1.49 | r@ item-out-index r@ item-stack @ 2dup stack-access |
| 381 : | ." , " -1 under+ stack-access | ||
| 382 : | anton | 1.20 | ." );" cr |
| 383 : | anton | 1.1 | rdrop ; |
| 384 : | |||
| 385 : | anton | 1.54 | : single ( -- xt1 xt2 n ) |
| 386 : | ['] fetch-single ['] store-single 1 ; | ||
| 387 : | anton | 1.1 | |
| 388 : | anton | 1.54 | : double ( -- xt1 xt2 n ) |
| 389 : | ['] fetch-double ['] store-double 2 ; | ||
| 390 : | anton | 1.1 | |
| 391 : | : s, ( addr u -- ) | ||
| 392 : | \ allocate a string | ||
| 393 : | here swap dup allot move ; | ||
| 394 : | |||
| 395 : | anton | 1.50 | wordlist constant prefixes |
| 396 : | |||
| 397 : | : declare ( addr "name" -- ) | ||
| 398 : | \ remember that there is a stack item at addr called name | ||
| 399 : | create , ; | ||
| 400 : | |||
| 401 : | : !default ( w addr -- ) | ||
| 402 : | dup @ if | ||
| 403 : | 2drop \ leave nonzero alone | ||
| 404 : | else | ||
| 405 : | ! | ||
| 406 : | endif ; | ||
| 407 : | |||
| 408 : | : create-type { addr u xt1 xt2 n stack -- } ( "prefix" -- ) | ||
| 409 : | anton | 1.49 | \ describes a type |
| 410 : | \ addr u specifies the C type name | ||
| 411 : | \ stack effect entries of the type start with prefix | ||
| 412 : | create type% %allot >r | ||
| 413 : | addr u save-mem r@ type-c-name 2! | ||
| 414 : | xt1 r@ type-fetch ! | ||
| 415 : | xt2 r@ type-store ! | ||
| 416 : | n r@ type-size ! | ||
| 417 : | stack r@ type-stack ! | ||
| 418 : | rdrop ; | ||
| 419 : | anton | 1.1 | |
| 420 : | anton | 1.54 | : type-prefix ( xt1 xt2 n stack "prefix" -- ) |
| 421 : | anton | 1.94 | get-current >r prefixes set-current |
| 422 : | create-type r> set-current | ||
| 423 : | anton | 1.50 | does> ( item -- ) |
| 424 : | \ initialize item | ||
| 425 : | { item typ } | ||
| 426 : | typ item item-type ! | ||
| 427 : | typ type-stack @ item item-stack !default | ||
| 428 : | anton | 1.75 | item item-name 2@ prim prim-items-wordlist @ search-wordlist 0= if |
| 429 : | anton | 1.66 | item item-name 2@ nextname item declare |
| 430 : | item item-first on | ||
| 431 : | \ typ type-c-name 2@ type space type ." ;" cr | ||
| 432 : | anton | 1.50 | else |
| 433 : | drop | ||
| 434 : | anton | 1.66 | item item-first off |
| 435 : | anton | 1.50 | endif ; |
| 436 : | |||
| 437 : | : execute-prefix ( item addr1 u1 -- ) | ||
| 438 : | \ execute the word ( item -- ) associated with the longest prefix | ||
| 439 : | \ of addr1 u1 | ||
| 440 : | 0 swap ?do | ||
| 441 : | dup i prefixes search-wordlist | ||
| 442 : | if \ ok, we have the type ( item addr1 xt ) | ||
| 443 : | nip execute | ||
| 444 : | UNLOOP EXIT | ||
| 445 : | endif | ||
| 446 : | -1 s+loop | ||
| 447 : | \ we did not find a type, abort | ||
| 448 : | anton | 1.81 | false s" unknown prefix" ?print-error ; |
| 449 : | anton | 1.1 | |
| 450 : | : declaration ( item -- ) | ||
| 451 : | anton | 1.50 | dup item-name 2@ execute-prefix ; |
| 452 : | anton | 1.1 | |
| 453 : | anton | 1.64 | : declaration-list ( addr1 addr2 -- ) |
| 454 : | ['] declaration map-items ; | ||
| 455 : | |||
| 456 : | : declarations ( -- ) | ||
| 457 : | anton | 1.75 | wordlist dup prim prim-items-wordlist ! set-current |
| 458 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ declaration-list |
| 459 : | prim prim-effect-out prim prim-effect-out-end @ declaration-list ; | ||
| 460 : | anton | 1.64 | |
| 461 : | anton | 1.66 | : print-declaration { item -- } |
| 462 : | item item-first @ if | ||
| 463 : | item item-type @ type-c-name 2@ type space | ||
| 464 : | item item-name 2@ type ." ;" cr | ||
| 465 : | endif ; | ||
| 466 : | |||
| 467 : | : print-declarations ( -- ) | ||
| 468 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] print-declaration map-items |
| 469 : | prim prim-effect-out prim prim-effect-out-end @ ['] print-declaration map-items ; | ||
| 470 : | anton | 1.66 | |
| 471 : | anton | 1.51 | : stack-prefix ( stack "prefix" -- ) |
| 472 : | anton | 1.94 | get-current >r prefixes set-current |
| 473 : | anton | 1.51 | name tuck nextname create ( stack length ) 2, |
| 474 : | anton | 1.94 | r> set-current |
| 475 : | anton | 1.51 | does> ( item -- ) |
| 476 : | 2@ { item stack prefix-length } | ||
| 477 : | item item-name 2@ prefix-length /string item item-name 2! | ||
| 478 : | stack item item-stack ! | ||
| 479 : | item declaration ; | ||
| 480 : | anton | 1.73 | |
| 481 : | anton | 1.74 | \ types pointed to by stacks for use in combined prims |
| 482 : | anton | 1.83 | \ !! output-c-combined shouldn't use these names! |
| 483 : | anton | 1.92 | : stack-type-name ( addr u "name" -- ) |
| 484 : | single 0 create-type ; | ||
| 485 : | |||
| 486 : | anton | 1.93 | wordlist constant type-names \ this is here just to meet the requirement |
| 487 : | \ that a type be a word; it is never used for lookup | ||
| 488 : | anton | 1.83 | |
| 489 : | anton | 1.93 | : stack ( "name" "stack-pointer" "type" -- ) |
| 490 : | \ define stack | ||
| 491 : | name { d: stack-name } | ||
| 492 : | name { d: stack-pointer } | ||
| 493 : | name { d: stack-type } | ||
| 494 : | get-current type-names set-current | ||
| 495 : | stack-type 2dup nextname stack-type-name | ||
| 496 : | set-current | ||
| 497 : | stack-pointer lastxt >body stack-name nextname make-stack ; | ||
| 498 : | |||
| 499 : | stack inst-stream IP Cell | ||
| 500 : | anton | 1.73 | ' inst-in-index inst-stream stack-in-index-xt ! |
| 501 : | anton | 1.80 | ' inst-stream <is> inst-stream-f |
| 502 : | anton | 1.73 | \ !! initialize stack-in and stack-out |
| 503 : | anton | 1.1 | |
| 504 : | \ offset computation | ||
| 505 : | \ the leftmost (i.e. deepest) item has offset 0 | ||
| 506 : | \ the rightmost item has the highest offset | ||
| 507 : | |||
| 508 : | anton | 1.49 | : compute-offset { item xt -- } |
| 509 : | \ xt specifies in/out; update stack-in/out and set item-offset | ||
| 510 : | item item-type @ type-size @ | ||
| 511 : | item item-stack @ xt execute dup @ >r +! | ||
| 512 : | r> item item-offset ! ; | ||
| 513 : | |||
| 514 : | anton | 1.64 | : compute-offset-in ( addr1 addr2 -- ) |
| 515 : | ['] stack-in compute-offset ; | ||
| 516 : | |||
| 517 : | : compute-offset-out ( addr1 addr2 -- ) | ||
| 518 : | ['] stack-out compute-offset ; | ||
| 519 : | anton | 1.49 | |
| 520 : | : clear-stack { -- } | ||
| 521 : | dup stack-in off stack-out off ; | ||
| 522 : | anton | 1.1 | |
| 523 : | : compute-offsets ( -- ) | ||
| 524 : | anton | 1.92 | ['] clear-stack map-stacks |
| 525 : | anton | 1.53 | inst-stream clear-stack |
| 526 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] compute-offset-in map-items |
| 527 : | prim prim-effect-out prim prim-effect-out-end @ ['] compute-offset-out map-items | ||
| 528 : | anton | 1.81 | inst-stream stack-out @ 0= s" # can only be on the input side" ?print-error ; |
| 529 : | |||
| 530 : | : process-simple ( -- ) | ||
| 531 : | prim prim { W^ key } key cell | ||
| 532 : | anton | 1.82 | combinations ['] constant insert-wordlist |
| 533 : | anton | 1.81 | declarations compute-offsets |
| 534 : | anton | 1.82 | output @ execute ; |
| 535 : | anton | 1.49 | |
| 536 : | : flush-a-tos { stack -- } | ||
| 537 : | stack stack-out @ 0<> stack stack-in @ 0= and | ||
| 538 : | if | ||
| 539 : | ." IF_" stack stack-pointer 2@ 2dup type ." TOS(" | ||
| 540 : | 2dup type ." [0] = " type ." TOS);" cr | ||
| 541 : | endif ; | ||
| 542 : | anton | 1.1 | |
| 543 : | : flush-tos ( -- ) | ||
| 544 : | anton | 1.92 | ['] flush-a-tos map-stacks ; |
| 545 : | anton | 1.49 | |
| 546 : | : fill-a-tos { stack -- } | ||
| 547 : | stack stack-out @ 0= stack stack-in @ 0<> and | ||
| 548 : | if | ||
| 549 : | ." IF_" stack stack-pointer 2@ 2dup type ." TOS(" | ||
| 550 : | 2dup type ." TOS = " type ." [0]);" cr | ||
| 551 : | endif ; | ||
| 552 : | anton | 1.1 | |
| 553 : | : fill-tos ( -- ) | ||
| 554 : | anton | 1.53 | \ !! inst-stream for prefetching? |
| 555 : | anton | 1.92 | ['] fill-a-tos map-stacks ; |
| 556 : | anton | 1.49 | |
| 557 : | : fetch ( addr -- ) | ||
| 558 : | anton | 1.72 | dup item-type @ type-fetch @ execute ; |
| 559 : | anton | 1.1 | |
| 560 : | : fetches ( -- ) | ||
| 561 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] fetch map-items ; |
| 562 : | anton | 1.49 | |
| 563 : | : stack-pointer-update { stack -- } | ||
| 564 : | \ stack grow downwards | ||
| 565 : | stack stack-in @ stack stack-out @ - | ||
| 566 : | ?dup-if \ this check is not necessary, gcc would do this for us | ||
| 567 : | stack stack-pointer 2@ type ." += " 0 .r ." ;" cr | ||
| 568 : | endif ; | ||
| 569 : | anton | 1.1 | |
| 570 : | anton | 1.55 | : inst-pointer-update ( -- ) |
| 571 : | inst-stream stack-in @ ?dup-if | ||
| 572 : | ." INC_IP(" 0 .r ." );" cr | ||
| 573 : | endif ; | ||
| 574 : | |||
| 575 : | anton | 1.1 | : stack-pointer-updates ( -- ) |
| 576 : | anton | 1.55 | inst-pointer-update |
| 577 : | anton | 1.92 | ['] stack-pointer-update map-stacks ; |
| 578 : | anton | 1.1 | |
| 579 : | : store ( item -- ) | ||
| 580 : | \ f is true if the item should be stored | ||
| 581 : | \ f is false if the store is probably not necessary | ||
| 582 : | anton | 1.49 | dup item-type @ type-store @ execute ; |
| 583 : | anton | 1.1 | |
| 584 : | : stores ( -- ) | ||
| 585 : | anton | 1.69 | prim prim-effect-out prim prim-effect-out-end @ ['] store map-items ; |
| 586 : | pazsan | 1.8 | |
| 587 : | anton | 1.91 | : print-debug-arg { item -- } |
| 588 : | ." fputs(" quote space item item-name 2@ type ." =" quote ." , vm_out); " | ||
| 589 : | ." printarg_" item item-type @ print-type-prefix | ||
| 590 : | ." (" item item-name 2@ type ." );" cr ; | ||
| 591 : | |||
| 592 : | : print-debug-args ( -- ) | ||
| 593 : | ." #ifdef VM_DEBUG" cr | ||
| 594 : | ." if (vm_debug) {" cr | ||
| 595 : | prim prim-effect-in prim prim-effect-in-end @ ['] print-debug-arg map-items | ||
| 596 : | \ ." fputc('\n', vm_out);" cr | ||
| 597 : | ." }" cr | ||
| 598 : | ." #endif" cr ; | ||
| 599 : | |||
| 600 : | : print-debug-result { item -- } | ||
| 601 : | item item-first @ if | ||
| 602 : | item print-debug-arg | ||
| 603 : | endif ; | ||
| 604 : | |||
| 605 : | : print-debug-results ( -- ) | ||
| 606 : | cr | ||
| 607 : | ." #ifdef VM_DEBUG" cr | ||
| 608 : | ." if (vm_debug) {" cr | ||
| 609 : | ." fputs(" quote ." -- " quote ." , vm_out); " | ||
| 610 : | prim prim-effect-out prim prim-effect-out-end @ ['] print-debug-result map-items | ||
| 611 : | ." fputc('\n', vm_out);" cr | ||
| 612 : | ." }" cr | ||
| 613 : | ." #endif" cr ; | ||
| 614 : | |||
| 615 : | anton | 1.86 | : output-super-end ( -- ) |
| 616 : | prim prim-c-code 2@ s" SET_IP" search if | ||
| 617 : | ." SUPER_END;" cr | ||
| 618 : | endif | ||
| 619 : | 2drop ; | ||
| 620 : | |||
| 621 : | anton | 1.52 | : output-c-tail ( -- ) |
| 622 : | \ the final part of the generated C code | ||
| 623 : | anton | 1.86 | output-super-end |
| 624 : | anton | 1.91 | print-debug-results |
| 625 : | anton | 1.52 | ." NEXT_P1;" cr |
| 626 : | stores | ||
| 627 : | fill-tos | ||
| 628 : | anton | 1.85 | ." NEXT_P2;" ; |
| 629 : | anton | 1.52 | |
| 630 : | anton | 1.85 | : type-c-code ( c-addr u xt -- ) |
| 631 : | \ like TYPE, but replaces "TAIL;" with tail code produced by xt | ||
| 632 : | { xt } | ||
| 633 : | anton | 1.52 | begin ( c-addr1 u1 ) |
| 634 : | 2dup s" TAIL;" search | ||
| 635 : | while ( c-addr1 u1 c-addr3 u3 ) | ||
| 636 : | 2dup 2>r drop nip over - type | ||
| 637 : | anton | 1.85 | xt execute |
| 638 : | anton | 1.52 | 2r> 5 /string |
| 639 : | \ !! resync #line missing | ||
| 640 : | repeat | ||
| 641 : | 2drop type ; | ||
| 642 : | anton | 1.63 | |
| 643 : | anton | 1.72 | : print-entry ( -- ) |
| 644 : | ." I_" prim prim-c-name 2@ type ." :" ; | ||
| 645 : | anton | 1.63 | |
| 646 : | jwilke | 1.43 | : output-c ( -- ) |
| 647 : | anton | 1.72 | print-entry ." /* " prim prim-name 2@ type ." ( " prim prim-stack-string 2@ type ." ) */" cr |
| 648 : | anton | 1.69 | ." /* " prim prim-doc 2@ type ." */" cr |
| 649 : | ." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging | ||
| 650 : | anton | 1.1 | ." {" cr |
| 651 : | ." DEF_CA" cr | ||
| 652 : | anton | 1.66 | print-declarations |
| 653 : | anton | 1.13 | ." NEXT_P0;" cr |
| 654 : | flush-tos | ||
| 655 : | anton | 1.1 | fetches |
| 656 : | anton | 1.63 | print-debug-args |
| 657 : | anton | 1.13 | stack-pointer-updates |
| 658 : | anton | 1.1 | ." {" cr |
| 659 : | anton | 1.63 | ." #line " c-line @ . quote c-filename 2@ type quote cr |
| 660 : | anton | 1.85 | prim prim-c-code 2@ ['] output-c-tail type-c-code |
| 661 : | anton | 1.1 | ." }" cr |
| 662 : | anton | 1.52 | output-c-tail |
| 663 : | anton | 1.1 | ." }" cr |
| 664 : | cr | ||
| 665 : | ; | ||
| 666 : | |||
| 667 : | anton | 1.56 | : disasm-arg { item -- } |
| 668 : | item item-stack @ inst-stream = if | ||
| 669 : | anton | 1.63 | ." fputc(' ', vm_out); " |
| 670 : | ." printarg_" item item-type @ print-type-prefix | ||
| 671 : | ." ((" item item-type @ type-c-name 2@ type ." )" | ||
| 672 : | ." ip[" item item-offset @ 1+ 0 .r ." ]);" cr | ||
| 673 : | anton | 1.56 | endif ; |
| 674 : | |||
| 675 : | : disasm-args ( -- ) | ||
| 676 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] disasm-arg map-items ; |
| 677 : | anton | 1.56 | |
| 678 : | : output-disasm ( -- ) | ||
| 679 : | \ generate code for disassembling VM instructions | ||
| 680 : | ." if (ip[0] == prim[" function-number @ 0 .r ." ]) {" cr | ||
| 681 : | anton | 1.69 | ." fputs(" quote prim prim-name 2@ type quote ." , vm_out);" cr |
| 682 : | anton | 1.56 | disasm-args |
| 683 : | ." ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr | ||
| 684 : | anton | 1.91 | ." goto _endif_;" cr |
| 685 : | ." }" cr ; | ||
| 686 : | anton | 1.56 | |
| 687 : | anton | 1.86 | : output-profile ( -- ) |
| 688 : | \ generate code for postprocessing the VM block profile stuff | ||
| 689 : | anton | 1.87 | ." if (VM_IS_INST(*ip, " function-number @ 0 .r ." )) {" cr |
| 690 : | anton | 1.86 | ." add_inst(b, " quote prim prim-name 2@ type quote ." );" cr |
| 691 : | ." ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr | ||
| 692 : | prim prim-c-code 2@ s" SET_IP" search nip nip | ||
| 693 : | prim prim-c-code 2@ s" SUPER_END" search nip nip or if | ||
| 694 : | ." return;" cr | ||
| 695 : | anton | 1.91 | else |
| 696 : | ." goto _endif_;" cr | ||
| 697 : | anton | 1.86 | endif |
| 698 : | anton | 1.91 | ." }" cr ; |
| 699 : | anton | 1.86 | |
| 700 : | anton | 1.60 | : gen-arg-parm { item -- } |
| 701 : | item item-stack @ inst-stream = if | ||
| 702 : | ." , " item item-type @ type-c-name 2@ type space | ||
| 703 : | item item-name 2@ type | ||
| 704 : | endif ; | ||
| 705 : | |||
| 706 : | : gen-args-parm ( -- ) | ||
| 707 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] gen-arg-parm map-items ; |
| 708 : | anton | 1.60 | |
| 709 : | : gen-arg-gen { item -- } | ||
| 710 : | item item-stack @ inst-stream = if | ||
| 711 : | ." genarg_" item item-type @ print-type-prefix | ||
| 712 : | ." (ctp, " item item-name 2@ type ." );" cr | ||
| 713 : | endif ; | ||
| 714 : | |||
| 715 : | : gen-args-gen ( -- ) | ||
| 716 : | anton | 1.69 | prim prim-effect-in prim prim-effect-in-end @ ['] gen-arg-gen map-items ; |
| 717 : | anton | 1.60 | |
| 718 : | : output-gen ( -- ) | ||
| 719 : | \ generate C code for generating VM instructions | ||
| 720 : | anton | 1.69 | ." void gen_" prim prim-c-name 2@ type ." (Inst **ctp" gen-args-parm ." )" cr |
| 721 : | anton | 1.60 | ." {" cr |
| 722 : | ." gen_inst(ctp, vm_prim[" function-number @ 0 .r ." ]);" cr | ||
| 723 : | gen-args-gen | ||
| 724 : | anton | 1.68 | ." }" cr ; |
| 725 : | anton | 1.60 | |
| 726 : | anton | 1.49 | : stack-used? { stack -- f } |
| 727 : | stack stack-in @ stack stack-out @ or 0<> ; | ||
| 728 : | jwilke | 1.44 | |
| 729 : | pazsan | 1.30 | : output-funclabel ( -- ) |
| 730 : | anton | 1.69 | ." &I_" prim prim-c-name 2@ type ." ," cr ; |
| 731 : | pazsan | 1.30 | |
| 732 : | : output-forthname ( -- ) | ||
| 733 : | anton | 1.69 | '" emit prim prim-name 2@ type '" emit ." ," cr ; |
| 734 : | pazsan | 1.30 | |
| 735 : | anton | 1.92 | \ : output-c-func ( -- ) |
| 736 : | \ \ used for word libraries | ||
| 737 : | \ ." Cell * I_" prim prim-c-name 2@ type ." (Cell *SP, Cell **FP) /* " prim prim-name 2@ type | ||
| 738 : | \ ." ( " prim prim-stack-string 2@ type ." ) */" cr | ||
| 739 : | \ ." /* " prim prim-doc 2@ type ." */" cr | ||
| 740 : | \ ." NAME(" quote prim prim-name 2@ type quote ." )" cr | ||
| 741 : | \ \ debugging | ||
| 742 : | \ ." {" cr | ||
| 743 : | \ print-declarations | ||
| 744 : | \ \ !! don't know what to do about that | ||
| 745 : | \ inst-stream stack-used? IF ." Cell *ip=IP;" cr THEN | ||
| 746 : | \ data-stack stack-used? IF ." Cell *sp=SP;" cr THEN | ||
| 747 : | \ fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN | ||
| 748 : | \ return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN | ||
| 749 : | \ flush-tos | ||
| 750 : | \ fetches | ||
| 751 : | \ stack-pointer-updates | ||
| 752 : | \ fp-stack stack-used? IF ." *FP=fp;" cr THEN | ||
| 753 : | \ ." {" cr | ||
| 754 : | \ ." #line " c-line @ . quote c-filename 2@ type quote cr | ||
| 755 : | \ prim prim-c-code 2@ type | ||
| 756 : | \ ." }" cr | ||
| 757 : | \ stores | ||
| 758 : | \ fill-tos | ||
| 759 : | \ ." return (sp);" cr | ||
| 760 : | \ ." }" cr | ||
| 761 : | \ cr ; | ||
| 762 : | pazsan | 1.30 | |
| 763 : | jwilke | 1.43 | : output-label ( -- ) |
| 764 : | anton | 1.69 | ." (Label)&&I_" prim prim-c-name 2@ type ." ," cr ; |
| 765 : | anton | 1.1 | |
| 766 : | jwilke | 1.43 | : output-alias ( -- ) |
| 767 : | anton | 1.69 | ( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ; |
| 768 : | anton | 1.1 | |
| 769 : | jwilke | 1.43 | : output-forth ( -- ) |
| 770 : | anton | 1.69 | prim prim-forth-code @ 0= |
| 771 : | pazsan | 1.30 | IF \ output-alias |
| 772 : | jwilke | 1.28 | \ this is bad for ec: an alias is compiled if tho word does not exist! |
| 773 : | \ JAW | ||
| 774 : | anton | 1.69 | ELSE ." : " prim prim-name 2@ type ." ( " |
| 775 : | prim prim-stack-string 2@ type ." )" cr | ||
| 776 : | prim prim-forth-code 2@ type cr | ||
| 777 : | pazsan | 1.30 | THEN ; |
| 778 : | anton | 1.10 | |
| 779 : | anton | 1.17 | : output-tag-file ( -- ) |
| 780 : | name-filename 2@ last-name-filename 2@ compare if | ||
| 781 : | name-filename 2@ last-name-filename 2! | ||
| 782 : | #ff emit cr | ||
| 783 : | name-filename 2@ type | ||
| 784 : | ." ,0" cr | ||
| 785 : | endif ; | ||
| 786 : | |||
| 787 : | : output-tag ( -- ) | ||
| 788 : | output-tag-file | ||
| 789 : | anton | 1.69 | prim prim-name 2@ 1+ type |
| 790 : | anton | 1.17 | 127 emit |
| 791 : | anton | 1.69 | space prim prim-name 2@ type space |
| 792 : | anton | 1.17 | 1 emit |
| 793 : | name-line @ 0 .r | ||
| 794 : | ." ,0" cr ; | ||
| 795 : | |||
| 796 : | anton | 1.10 | [IFDEF] documentation |
| 797 : | : register-doc ( -- ) | ||
| 798 : | anton | 1.82 | prim prim-name 2@ documentation ['] create insert-wordlist |
| 799 : | anton | 1.69 | prim prim-name 2@ 2, |
| 800 : | prim prim-stack-string 2@ condition-stack-effect 2, | ||
| 801 : | prim prim-wordset 2@ 2, | ||
| 802 : | prim prim-c-name 2@ condition-pronounciation 2, | ||
| 803 : | anton | 1.82 | prim prim-doc 2@ 2, ; |
| 804 : | anton | 1.10 | [THEN] |
| 805 : | anton | 1.67 | |
| 806 : | |||
| 807 : | anton | 1.69 | \ combining instructions |
| 808 : | |||
| 809 : | \ The input should look like this: | ||
| 810 : | |||
| 811 : | \ lit_+ = lit + | ||
| 812 : | |||
| 813 : | \ The output should look like this: | ||
| 814 : | |||
| 815 : | \ I_lit_+: | ||
| 816 : | \ { | ||
| 817 : | \ DEF_CA | ||
| 818 : | \ Cell _x_ip0; | ||
| 819 : | \ Cell _x_sp0; | ||
| 820 : | \ Cell _x_sp1; | ||
| 821 : | \ NEXT_P0; | ||
| 822 : | \ _x_ip0 = (Cell) IPTOS; | ||
| 823 : | \ _x_sp0 = (Cell) spTOS; | ||
| 824 : | \ INC_IP(1); | ||
| 825 : | \ /* sp += 0; */ | ||
| 826 : | \ /* lit ( #w -- w ) */ | ||
| 827 : | \ /* */ | ||
| 828 : | \ NAME("lit") | ||
| 829 : | \ { | ||
| 830 : | \ Cell w; | ||
| 831 : | \ w = (Cell) _x_ip0; | ||
| 832 : | \ #ifdef VM_DEBUG | ||
| 833 : | \ if (vm_debug) { | ||
| 834 : | \ fputs(" w=", vm_out); printarg_w (w); | ||
| 835 : | \ fputc('\n', vm_out); | ||
| 836 : | \ } | ||
| 837 : | \ #endif | ||
| 838 : | \ { | ||
| 839 : | \ #line 136 "./prim" | ||
| 840 : | \ } | ||
| 841 : | \ _x_sp1 = (Cell)w; | ||
| 842 : | \ } | ||
| 843 : | \ I_plus: /* + ( n1 n2 -- n ) */ | ||
| 844 : | \ /* */ | ||
| 845 : | \ NAME("+") | ||
| 846 : | \ { | ||
| 847 : | \ DEF_CA | ||
| 848 : | \ Cell n1; | ||
| 849 : | \ Cell n2; | ||
| 850 : | \ Cell n; | ||
| 851 : | \ NEXT_P0; | ||
| 852 : | \ n1 = (Cell) _x_sp0; | ||
| 853 : | \ n2 = (Cell) _x_sp1; | ||
| 854 : | \ #ifdef VM_DEBUG | ||
| 855 : | \ if (vm_debug) { | ||
| 856 : | \ fputs(" n1=", vm_out); printarg_n (n1); | ||
| 857 : | \ fputs(" n2=", vm_out); printarg_n (n2); | ||
| 858 : | \ fputc('\n', vm_out); | ||
| 859 : | \ } | ||
| 860 : | \ #endif | ||
| 861 : | \ { | ||
| 862 : | \ #line 516 "./prim" | ||
| 863 : | \ n = n1+n2; | ||
| 864 : | \ } | ||
| 865 : | \ NEXT_P1; | ||
| 866 : | \ _x_sp0 = (Cell)n; | ||
| 867 : | \ NEXT_P2; | ||
| 868 : | \ } | ||
| 869 : | \ NEXT_P1; | ||
| 870 : | \ spTOS = (Cell)_x_sp0; | ||
| 871 : | \ NEXT_P2; | ||
| 872 : | |||
| 873 : | anton | 1.71 | : init-combined ( -- ) |
| 874 : | anton | 1.79 | prim to combined |
| 875 : | anton | 1.71 | 0 num-combined ! |
| 876 : | current-depth max-stacks cells erase | ||
| 877 : | anton | 1.72 | max-depth max-stacks cells erase |
| 878 : | min-depth max-stacks cells erase | ||
| 879 : | prim prim-effect-in prim prim-effect-in-end ! | ||
| 880 : | prim prim-effect-out prim prim-effect-out-end ! ; | ||
| 881 : | anton | 1.71 | |
| 882 : | : max! ( n addr -- ) | ||
| 883 : | tuck @ max swap ! ; | ||
| 884 : | |||
| 885 : | anton | 1.72 | : min! ( n addr -- ) |
| 886 : | tuck @ min swap ! ; | ||
| 887 : | |||
| 888 : | anton | 1.71 | : add-depths { p -- } |
| 889 : | \ combine stack effect of p with *-depths | ||
| 890 : | max-stacks 0 ?do | ||
| 891 : | anton | 1.72 | current-depth i th @ |
| 892 : | p prim-stacks-in i th @ + | ||
| 893 : | dup max-depth i th max! | ||
| 894 : | p prim-stacks-out i th @ - | ||
| 895 : | dup min-depth i th min! | ||
| 896 : | current-depth i th ! | ||
| 897 : | anton | 1.71 | loop ; |
| 898 : | |||
| 899 : | : add-prim ( addr u -- ) | ||
| 900 : | \ add primitive given by "addr u" to combined-prims | ||
| 901 : | primitives search-wordlist s" unknown primitive" ?print-error | ||
| 902 : | execute { p } | ||
| 903 : | anton | 1.72 | p combined-prims num-combined @ th ! |
| 904 : | anton | 1.71 | 1 num-combined +! |
| 905 : | p add-depths ; | ||
| 906 : | |||
| 907 : | : compute-effects { q -- } | ||
| 908 : | \ compute the stack effects of q from the depths | ||
| 909 : | max-stacks 0 ?do | ||
| 910 : | anton | 1.72 | max-depth i th @ dup |
| 911 : | q prim-stacks-in i th ! | ||
| 912 : | current-depth i th @ - | ||
| 913 : | q prim-stacks-out i th ! | ||
| 914 : | loop ; | ||
| 915 : | |||
| 916 : | : make-effect-items { stack# items effect-endp -- } | ||
| 917 : | \ effect-endp points to a pointer to the end of the current item-array | ||
| 918 : | \ and has to be updated | ||
| 919 : | stacks stack# th @ { stack } | ||
| 920 : | items 0 +do | ||
| 921 : | effect-endp @ { item } | ||
| 922 : | i 0 <# #s stack stack-pointer 2@ holds [char] _ hold #> save-mem | ||
| 923 : | item item-name 2! | ||
| 924 : | stack item item-stack ! | ||
| 925 : | anton | 1.74 | stack stack-type @ item item-type ! |
| 926 : | anton | 1.72 | i item item-offset ! |
| 927 : | item item-first on | ||
| 928 : | item% %size effect-endp +! | ||
| 929 : | loop ; | ||
| 930 : | |||
| 931 : | : init-effects { q -- } | ||
| 932 : | \ initialize effects field for FETCHES and STORES | ||
| 933 : | max-stacks 0 ?do | ||
| 934 : | i q prim-stacks-in i th @ q prim-effect-in-end make-effect-items | ||
| 935 : | i q prim-stacks-out i th @ q prim-effect-out-end make-effect-items | ||
| 936 : | anton | 1.71 | loop ; |
| 937 : | |||
| 938 : | : process-combined ( -- ) | ||
| 939 : | anton | 1.81 | combined combined-prims num-combined @ cells |
| 940 : | anton | 1.82 | combinations ['] constant insert-wordlist |
| 941 : | anton | 1.86 | combined-prims num-combined @ 1- th ( last-part ) |
| 942 : | @ prim-c-code 2@ prim prim-c-code 2! \ used by output-super-end | ||
| 943 : | anton | 1.72 | prim compute-effects |
| 944 : | prim init-effects | ||
| 945 : | output-combined perform ; | ||
| 946 : | |||
| 947 : | \ C output | ||
| 948 : | |||
| 949 : | : print-item { n stack -- } | ||
| 950 : | \ print nth stack item name | ||
| 951 : | anton | 1.79 | stack stack-type @ type-c-name 2@ type space |
| 952 : | ." _" stack stack-pointer 2@ type n 0 .r ; | ||
| 953 : | anton | 1.72 | |
| 954 : | : print-declarations-combined ( -- ) | ||
| 955 : | max-stacks 0 ?do | ||
| 956 : | max-depth i th @ min-depth i th @ - 0 +do | ||
| 957 : | i stacks j th @ print-item ." ;" cr | ||
| 958 : | loop | ||
| 959 : | loop ; | ||
| 960 : | anton | 1.79 | |
| 961 : | : part-fetches ( -- ) | ||
| 962 : | fetches ; | ||
| 963 : | |||
| 964 : | : part-output-c-tail ( -- ) | ||
| 965 : | anton | 1.91 | print-debug-results |
| 966 : | anton | 1.85 | stores ; |
| 967 : | |||
| 968 : | : output-combined-tail ( -- ) | ||
| 969 : | part-output-c-tail | ||
| 970 : | prim >r combined to prim | ||
| 971 : | in-part @ >r in-part off | ||
| 972 : | output-c-tail | ||
| 973 : | r> in-part ! r> to prim ; | ||
| 974 : | anton | 1.79 | |
| 975 : | : output-part ( p -- ) | ||
| 976 : | to prim | ||
| 977 : | ." /* " prim prim-name 2@ type ." ( " prim prim-stack-string 2@ type ." ) */" cr | ||
| 978 : | ." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging | ||
| 979 : | ." {" cr | ||
| 980 : | print-declarations | ||
| 981 : | part-fetches | ||
| 982 : | print-debug-args | ||
| 983 : | prim add-depths \ !! right place? | ||
| 984 : | ." {" cr | ||
| 985 : | ." #line " c-line @ . quote c-filename 2@ type quote cr | ||
| 986 : | anton | 1.85 | prim prim-c-code 2@ ['] output-combined-tail type-c-code |
| 987 : | anton | 1.79 | ." }" cr |
| 988 : | part-output-c-tail | ||
| 989 : | ." }" cr ; | ||
| 990 : | |||
| 991 : | anton | 1.74 | : output-parts ( -- ) |
| 992 : | anton | 1.79 | prim >r in-part on |
| 993 : | current-depth max-stacks cells erase | ||
| 994 : | anton | 1.74 | num-combined @ 0 +do |
| 995 : | anton | 1.79 | combined-prims i th @ output-part |
| 996 : | anton | 1.74 | loop |
| 997 : | anton | 1.79 | in-part off |
| 998 : | anton | 1.74 | r> to prim ; |
| 999 : | |||
| 1000 : | anton | 1.72 | : output-c-combined ( -- ) |
| 1001 : | print-entry cr | ||
| 1002 : | anton | 1.74 | \ debugging messages just in parts |
| 1003 : | anton | 1.72 | ." {" cr |
| 1004 : | ." DEF_CA" cr | ||
| 1005 : | print-declarations-combined | ||
| 1006 : | ." NEXT_P0;" cr | ||
| 1007 : | flush-tos | ||
| 1008 : | fetches | ||
| 1009 : | anton | 1.74 | \ print-debug-args |
| 1010 : | stack-pointer-updates | ||
| 1011 : | output-parts | ||
| 1012 : | output-c-tail | ||
| 1013 : | ." }" cr | ||
| 1014 : | cr ; | ||
| 1015 : | anton | 1.72 | |
| 1016 : | : output-forth-combined ( -- ) | ||
| 1017 : | anton | 1.81 | ; |
| 1018 : | |||
| 1019 : | |||
| 1020 : | anton | 1.83 | \ peephole optimization rules |
| 1021 : | anton | 1.81 | |
| 1022 : | \ in order for this to work as intended, shorter combinations for each | ||
| 1023 : | \ length must be present, and the longer combinations must follow | ||
| 1024 : | \ shorter ones (this restriction may go away in the future). | ||
| 1025 : | |||
| 1026 : | anton | 1.83 | : output-peephole ( -- ) |
| 1027 : | anton | 1.81 | combined-prims num-combined @ 1- cells combinations search-wordlist |
| 1028 : | s" the prefix for this combination must be defined earlier" ?print-error | ||
| 1029 : | anton | 1.82 | ." {" |
| 1030 : | execute prim-num @ 5 .r ." ," | ||
| 1031 : | combined-prims num-combined @ 1- th @ prim-num @ 5 .r ." ," | ||
| 1032 : | combined prim-num @ 5 .r ." }, /* " | ||
| 1033 : | combined prim-c-name 2@ type ." */" | ||
| 1034 : | cr ; | ||
| 1035 : | |||
| 1036 : | pazsan | 1.90 | : output-forth-peephole ( -- ) |
| 1037 : | combined-prims num-combined @ 1- cells combinations search-wordlist | ||
| 1038 : | s" the prefix for this combination must be defined earlier" ?print-error | ||
| 1039 : | execute prim-num @ 5 .r | ||
| 1040 : | combined-prims num-combined @ 1- th @ prim-num @ 5 .r | ||
| 1041 : | combined prim-num @ 5 .r ." prim, \ " | ||
| 1042 : | combined prim-c-name 2@ type | ||
| 1043 : | cr ; | ||
| 1044 : | |||
| 1045 : | anton | 1.69 | |
| 1046 : | anton | 1.67 | \ the parser |
| 1047 : | |||
| 1048 : | eof-char max-member \ the whole character set + EOF | ||
| 1049 : | |||
| 1050 : | : getinput ( -- n ) | ||
| 1051 : | rawinput @ endrawinput @ = | ||
| 1052 : | if | ||
| 1053 : | eof-char | ||
| 1054 : | else | ||
| 1055 : | cookedinput @ c@ | ||
| 1056 : | endif ; | ||
| 1057 : | |||
| 1058 : | :noname ( n -- ) | ||
| 1059 : | dup bl > if | ||
| 1060 : | emit space | ||
| 1061 : | else | ||
| 1062 : | . | ||
| 1063 : | endif ; | ||
| 1064 : | print-token ! | ||
| 1065 : | |||
| 1066 : | : testchar? ( set -- f ) | ||
| 1067 : | getinput member? ; | ||
| 1068 : | ' testchar? test-vector ! | ||
| 1069 : | |||
| 1070 : | : checksyncline ( -- ) | ||
| 1071 : | \ when input points to a newline, check if the next line is a | ||
| 1072 : | \ sync line. If it is, perform the appropriate actions. | ||
| 1073 : | rawinput @ >r | ||
| 1074 : | s" #line " r@ over compare 0<> if | ||
| 1075 : | rdrop 1 line +! EXIT | ||
| 1076 : | endif | ||
| 1077 : | 0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr ) | ||
| 1078 : | dup c@ bl = if | ||
| 1079 : | anton | 1.81 | char+ dup c@ [char] " <> 0= s" sync line syntax" ?print-error |
| 1080 : | anton | 1.67 | char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2! |
| 1081 : | char+ | ||
| 1082 : | endif | ||
| 1083 : | anton | 1.81 | dup c@ nl-char <> 0= s" sync line syntax" ?print-error |
| 1084 : | anton | 1.67 | skipsynclines @ if |
| 1085 : | dup char+ rawinput ! | ||
| 1086 : | rawinput @ c@ cookedinput @ c! | ||
| 1087 : | endif | ||
| 1088 : | drop ; | ||
| 1089 : | |||
| 1090 : | : ?nextchar ( f -- ) | ||
| 1091 : | anton | 1.71 | s" syntax error, wrong char" ?print-error |
| 1092 : | anton | 1.67 | rawinput @ endrawinput @ <> if |
| 1093 : | rawinput @ c@ | ||
| 1094 : | 1 chars rawinput +! | ||
| 1095 : | 1 chars cookedinput +! | ||
| 1096 : | nl-char = if | ||
| 1097 : | checksyncline | ||
| 1098 : | rawinput @ line-start ! | ||
| 1099 : | endif | ||
| 1100 : | rawinput @ c@ cookedinput @ c! | ||
| 1101 : | endif ; | ||
| 1102 : | |||
| 1103 : | : charclass ( set "name" -- ) | ||
| 1104 : | ['] ?nextchar terminal ; | ||
| 1105 : | |||
| 1106 : | : .. ( c1 c2 -- set ) | ||
| 1107 : | ( creates a set that includes the characters c, c1<=c<=c2 ) | ||
| 1108 : | empty copy-set | ||
| 1109 : | swap 1+ rot do | ||
| 1110 : | i over add-member | ||
| 1111 : | loop ; | ||
| 1112 : | |||
| 1113 : | : ` ( -- terminal ) ( use: ` c ) | ||
| 1114 : | ( creates anonymous terminal for the character c ) | ||
| 1115 : | char singleton ['] ?nextchar make-terminal ; | ||
| 1116 : | |||
| 1117 : | char a char z .. char A char Z .. union char _ singleton union charclass letter | ||
| 1118 : | char 0 char 9 .. charclass digit | ||
| 1119 : | bl singleton tab-char over add-member charclass white | ||
| 1120 : | nl-char singleton eof-char over add-member complement charclass nonl | ||
| 1121 : | nl-char singleton eof-char over add-member | ||
| 1122 : | char : over add-member complement charclass nocolonnl | ||
| 1123 : | bl 1+ maxchar .. char \ singleton complement intersection | ||
| 1124 : | charclass nowhitebq | ||
| 1125 : | bl 1+ maxchar .. charclass nowhite | ||
| 1126 : | char " singleton eof-char over add-member complement charclass noquote | ||
| 1127 : | nl-char singleton charclass nl | ||
| 1128 : | eof-char singleton charclass eof | ||
| 1129 : | anton | 1.79 | nl-char singleton eof-char over add-member charclass nleof |
| 1130 : | anton | 1.67 | |
| 1131 : | (( letter (( letter || digit )) ** | ||
| 1132 : | )) <- c-ident ( -- ) | ||
| 1133 : | |||
| 1134 : | (( ` # ?? (( letter || digit || ` : )) ** | ||
| 1135 : | )) <- stack-ident ( -- ) | ||
| 1136 : | |||
| 1137 : | (( nowhitebq nowhite ** )) | ||
| 1138 : | <- forth-ident ( -- ) | ||
| 1139 : | |||
| 1140 : | Variable forth-flag | ||
| 1141 : | Variable c-flag | ||
| 1142 : | |||
| 1143 : | (( (( ` e || ` E )) {{ start }} nonl ** | ||
| 1144 : | {{ end evaluate }} | ||
| 1145 : | )) <- eval-comment ( ... -- ... ) | ||
| 1146 : | |||
| 1147 : | (( (( ` f || ` F )) {{ start }} nonl ** | ||
| 1148 : | {{ end forth-flag @ IF type cr ELSE 2drop THEN }} | ||
| 1149 : | )) <- forth-comment ( -- ) | ||
| 1150 : | |||
| 1151 : | (( (( ` c || ` C )) {{ start }} nonl ** | ||
| 1152 : | {{ end c-flag @ IF type cr ELSE 2drop THEN }} | ||
| 1153 : | )) <- c-comment ( -- ) | ||
| 1154 : | |||
| 1155 : | (( ` - nonl ** {{ | ||
| 1156 : | forth-flag @ IF ." [ELSE]" cr THEN | ||
| 1157 : | c-flag @ IF ." #else" cr THEN }} | ||
| 1158 : | )) <- else-comment | ||
| 1159 : | |||
| 1160 : | (( ` + {{ start }} nonl ** {{ end | ||
| 1161 : | dup | ||
| 1162 : | IF c-flag @ | ||
| 1163 : | IF ." #ifdef HAS_" bounds ?DO I c@ toupper emit LOOP cr | ||
| 1164 : | THEN | ||
| 1165 : | forth-flag @ | ||
| 1166 : | IF ." has? " type ." [IF]" cr THEN | ||
| 1167 : | ELSE 2drop | ||
| 1168 : | c-flag @ IF ." #endif" cr THEN | ||
| 1169 : | forth-flag @ IF ." [THEN]" cr THEN | ||
| 1170 : | THEN }} | ||
| 1171 : | )) <- if-comment | ||
| 1172 : | |||
| 1173 : | (( (( eval-comment || forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body | ||
| 1174 : | |||
| 1175 : | anton | 1.79 | (( ` \ comment-body nleof )) <- comment ( -- ) |
| 1176 : | anton | 1.67 | |
| 1177 : | (( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) ** | ||
| 1178 : | <- stack-items | ||
| 1179 : | |||
| 1180 : | anton | 1.69 | (( {{ prim prim-effect-in }} stack-items {{ prim prim-effect-in-end ! }} |
| 1181 : | anton | 1.67 | ` - ` - white ** |
| 1182 : | anton | 1.69 | {{ prim prim-effect-out }} stack-items {{ prim prim-effect-out-end ! }} |
| 1183 : | anton | 1.67 | )) <- stack-effect ( -- ) |
| 1184 : | |||
| 1185 : | anton | 1.71 | (( {{ prim create-prim }} |
| 1186 : | anton | 1.69 | ` ( white ** {{ start }} stack-effect {{ end prim prim-stack-string 2! }} ` ) white ** |
| 1187 : | (( {{ start }} forth-ident {{ end prim prim-wordset 2! }} white ** | ||
| 1188 : | (( {{ start }} c-ident {{ end prim prim-c-name 2! }} )) ?? | ||
| 1189 : | anton | 1.79 | )) ?? nleof |
| 1190 : | (( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- prim prim-doc 2! }} ` " white ** nleof )) ?? | ||
| 1191 : | {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nleof white ** )) ** {{ end prim prim-c-code 2! skipsynclines on }} | ||
| 1192 : | (( ` : white ** nleof | ||
| 1193 : | {{ start }} (( nonl ++ nleof white ** )) ++ {{ end prim prim-forth-code 2! }} | ||
| 1194 : | anton | 1.81 | )) ?? {{ process-simple }} |
| 1195 : | anton | 1.79 | nleof |
| 1196 : | anton | 1.69 | )) <- simple-primitive ( -- ) |
| 1197 : | |||
| 1198 : | anton | 1.71 | (( {{ init-combined }} |
| 1199 : | anton | 1.89 | ` = white ** (( {{ start }} forth-ident {{ end add-prim }} white ** )) ++ |
| 1200 : | anton | 1.79 | nleof {{ process-combined }} |
| 1201 : | anton | 1.69 | )) <- combined-primitive |
| 1202 : | |||
| 1203 : | anton | 1.79 | (( {{ make-prim to prim 0 to combined |
| 1204 : | anton | 1.69 | line @ name-line ! filename 2@ name-filename 2! |
| 1205 : | anton | 1.82 | function-number @ prim prim-num ! |
| 1206 : | anton | 1.69 | start }} forth-ident {{ end 2dup prim prim-name 2! prim prim-c-name 2! }} white ++ |
| 1207 : | anton | 1.82 | (( simple-primitive || combined-primitive )) {{ 1 function-number +! }} |
| 1208 : | anton | 1.67 | )) <- primitive ( -- ) |
| 1209 : | |||
| 1210 : | (( (( comment || primitive || nl white ** )) ** eof )) | ||
| 1211 : | parser primitives2something | ||
| 1212 : | warnings @ [IF] | ||
| 1213 : | .( parser generated ok ) cr | ||
| 1214 : | [THEN] | ||
| 1215 : | |||
| 1216 : | jwilke | 1.95 | |
| 1217 : | \ run with out of box gforth 0.5.0 | ||
| 1218 : | [IFUNDEF] slurp-file | ||
| 1219 : | : slurp-file ( c-addr1 u1 -- c-addr2 u2 ) | ||
| 1220 : | \ c-addr1 u1 is the filename, c-addr2 u2 is the file's contents | ||
| 1221 : | r/o bin open-file throw >r | ||
| 1222 : | r@ file-size throw abort" file too large" | ||
| 1223 : | dup allocate throw swap | ||
| 1224 : | 2dup r@ read-file throw over <> abort" could not read whole file" | ||
| 1225 : | r> close-file throw ; | ||
| 1226 : | [THEN] | ||
| 1227 : | |||
| 1228 : | anton | 1.69 | : primfilter ( addr u -- ) |
| 1229 : | \ process the string at addr u | ||
| 1230 : | over dup rawinput ! dup line-start ! cookedinput ! | ||
| 1231 : | + endrawinput ! | ||
| 1232 : | checksyncline | ||
| 1233 : | primitives2something ; | ||
| 1234 : | pazsan | 1.8 | |
| 1235 : | anton | 1.72 | : process-file ( addr u xt-simple x-combined -- ) |
| 1236 : | output-combined ! output ! | ||
| 1237 : | anton | 1.61 | save-mem 2dup filename 2! |
| 1238 : | anton | 1.69 | slurp-file |
| 1239 : | anton | 1.17 | warnings @ if |
| 1240 : | ." ------------ CUT HERE -------------" cr endif | ||
| 1241 : | anton | 1.69 | primfilter ; |
| 1242 : | pazsan | 1.30 | |
| 1243 : | anton | 1.72 | \ : process ( xt -- ) |
| 1244 : | \ bl word count rot | ||
| 1245 : | \ process-file ; |
|
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