Annotation of gforth/prims2x.fs, revision 1.63
1.16 anton 1: \ converts primitives to, e.g., C code
2:
1.47 anton 3: \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
1.16 anton 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
1.48 anton 19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.16 anton 20:
21:
1.1 anton 22: \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)
23:
24: \ Optimizations:
25: \ superfluous stores are removed. GCC removes the superfluous loads by itself
26: \ TOS and FTOS can be kept in register( variable)s.
27: \
28: \ Problems:
29: \ The TOS optimization is somewhat hairy. The problems by example:
30: \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w;
31: \ The store is not superfluous although the earlier opt. would think so
32: \ Alternatively: sp[0]=TOS; w=TOS; sp-=1; TOS=w;
33: \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */
34: \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */
35: \ 4) ( -- ): /* but here they are unnecessary */
36: \ 5) Words that call NEXT themselves have to be done very carefully.
37: \
38: \ To do:
1.8 pazsan 39: \ add the store optimization for doubles
1.1 anton 40: \ regarding problem 1 above: It would be better (for over) to implement
41: \ the alternative
42:
1.3 pazsan 43: warnings off
44:
1.39 jwilke 45: [IFUNDEF] vocabulary \ we are executed just with kernel image
46: \ load the rest that is needed
47: \ (require fails because this file is needed from a
48: \ different directory with the wordlibraries)
49: include ./search.fs
50: include ./extend.fs
1.40 anton 51: [THEN]
52:
53: [IFUNDEF] environment?
1.39 jwilke 54: include ./environ.fs
55: [THEN]
1.25 pazsan 56:
1.49 anton 57: : struct% struct ; \ struct is redefined in gray
58:
1.39 jwilke 59: include ./gray.fs
1.1 anton 60:
61: 100 constant max-effect \ number of things on one side of a stack effect
62: 255 constant maxchar
63: maxchar 1+ constant eof-char
1.17 anton 64: #tab constant tab-char
65: #lf constant nl-char
1.1 anton 66:
1.18 anton 67: 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
1.17 anton 70: variable line \ line number of char pointed to by input
71: 1 line !
72: 2variable filename \ filename of original input file
73: 0 0 filename 2!
1.25 pazsan 74: 2variable f-comment
75: 0 0 f-comment 2!
1.17 anton 76: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
77: skipsynclines on
1.1 anton 78:
79: : start ( -- addr )
1.18 anton 80: cookedinput @ ;
1.1 anton 81:
82: : end ( addr -- addr u )
1.18 anton 83: cookedinput @ over - ;
1.1 anton 84:
1.63 ! anton 85: : quote ( -- )
! 86: [char] " emit ;
! 87:
1.1 anton 88: variable output \ xt ( -- ) of output word
89:
90: : printprim ( -- )
91: output @ execute ;
92:
1.49 anton 93: struct%
94: cell% 2* field stack-pointer \ stackpointer name
95: cell% 2* field stack-cast \ cast string for assignments to stack elements
1.53 anton 96: cell% field stack-in-index-xt \ ( in-size item -- in-index )
1.49 anton 97: cell% field stack-in \ number of stack items in effect in
98: cell% field stack-out \ number of stack items in effect out
99: end-struct stack%
100:
1.53 anton 101: struct%
102: cell% 2* field item-name \ name, excluding stack prefixes
103: cell% field item-stack \ descriptor for the stack used, 0 is default
104: cell% field item-type \ descriptor for the item type
105: cell% field item-offset \ offset in stack items, 0 for the deepest element
106: end-struct item%
107:
108: struct%
109: cell% 2* field type-c-name
110: cell% field type-stack \ default stack
111: cell% field type-size \ size of type in stack items
112: cell% field type-fetch \ xt of fetch code generator ( item -- )
113: cell% field type-store \ xt of store code generator ( item -- )
114: end-struct type%
115:
116: : stack-in-index ( in-size item -- in-index )
117: item-offset @ - 1- ;
118:
119: : inst-in-index ( in-size item -- in-index )
120: nip dup item-offset @ swap item-type @ type-size @ + 1- ;
121:
1.49 anton 122: : make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- )
123: create stack% %allot >r
124: save-mem r@ stack-cast 2!
1.53 anton 125: save-mem r@ stack-pointer 2!
126: ['] stack-in-index r> stack-in-index-xt ! ;
1.49 anton 127:
128: s" sp" save-mem s" (Cell)" make-stack data-stack
129: s" fp" save-mem s" " make-stack fp-stack
1.51 anton 130: s" rp" save-mem s" (Cell)" make-stack return-stack
1.62 anton 131: s" IP" save-mem s" error don't use # on results" make-stack inst-stream
1.53 anton 132: ' inst-in-index inst-stream stack-in-index-xt !
1.49 anton 133: \ !! initialize stack-in and stack-out
134:
135: \ stack items
136:
137: : init-item ( addr u addr1 -- )
138: \ initialize item at addr1 with name addr u
139: \ !! remove stack prefix
140: dup item% %size erase
141: item-name 2! ;
142:
143: \ various variables for storing stuff of one primitive
1.1 anton 144:
145: 2variable forth-name
146: 2variable wordset
147: 2variable c-name
148: 2variable doc
149: 2variable c-code
150: 2variable forth-code
151: 2variable stack-string
1.49 anton 152: create effect-in max-effect item% %size * allot
153: create effect-out max-effect item% %size * allot
1.1 anton 154: variable effect-in-end ( pointer )
155: variable effect-out-end ( pointer )
1.17 anton 156: variable c-line
157: 2variable c-filename
158: variable name-line
159: 2variable name-filename
160: 2variable last-name-filename
1.1 anton 161:
1.14 pazsan 162: variable primitive-number -10 primitive-number !
1.30 pazsan 163: Variable function-number 0 function-number !
1.1 anton 164:
165: \ for several reasons stack items of a word are stored in a wordlist
166: \ since neither forget nor marker are implemented yet, we make a new
167: \ wordlist for every word and store it in the variable items
168: variable items
169:
170: \ a few more set ops
171:
172: : bit-equivalent ( w1 w2 -- w3 )
173: xor invert ;
174:
175: : complement ( set1 -- set2 )
176: empty ['] bit-equivalent binary-set-operation ;
177:
178: \ the parser
179:
180: eof-char max-member \ the whole character set + EOF
181:
182: : getinput ( -- n )
1.18 anton 183: rawinput @ endrawinput @ =
1.1 anton 184: if
1.18 anton 185: eof-char
1.1 anton 186: else
1.18 anton 187: cookedinput @ c@
1.1 anton 188: endif ;
189:
190: :noname ( n -- )
191: dup bl > if
192: emit space
193: else
194: .
195: endif ;
196: print-token !
197:
198: : testchar? ( set -- f )
199: getinput member? ;
200: ' testchar? test-vector !
201:
1.17 anton 202: : checksyncline ( -- )
203: \ when input points to a newline, check if the next line is a
204: \ sync line. If it is, perform the appropriate actions.
1.18 anton 205: rawinput @ >r
1.17 anton 206: s" #line " r@ over compare 0<> if
207: rdrop 1 line +! EXIT
208: endif
209: 0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
210: dup c@ bl = if
211: char+ dup c@ [char] " <> abort" sync line syntax"
1.24 anton 212: char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
1.17 anton 213: char+
214: endif
215: dup c@ nl-char <> abort" sync line syntax"
216: skipsynclines @ if
1.18 anton 217: dup char+ rawinput !
218: rawinput @ c@ cookedinput @ c!
1.17 anton 219: endif
220: drop ;
221:
1.1 anton 222: : ?nextchar ( f -- )
1.17 anton 223: ?not? if
1.18 anton 224: filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
1.17 anton 225: getinput . cr
1.18 anton 226: rawinput @ endrawinput @ over - 100 min type cr
1.17 anton 227: abort
228: endif
1.18 anton 229: rawinput @ endrawinput @ <> if
230: rawinput @ c@
231: 1 chars rawinput +!
232: 1 chars cookedinput +!
1.17 anton 233: nl-char = if
234: checksyncline
235: endif
1.18 anton 236: rawinput @ c@ cookedinput @ c!
1.17 anton 237: endif ;
1.1 anton 238:
239: : charclass ( set "name" -- )
240: ['] ?nextchar terminal ;
241:
242: : .. ( c1 c2 -- set )
243: ( creates a set that includes the characters c, c1<=c<=c2 )
244: empty copy-set
245: swap 1+ rot do
246: i over add-member
247: loop ;
248:
249: : ` ( -- terminal ) ( use: ` c )
250: ( creates anonymous terminal for the character c )
1.21 anton 251: char singleton ['] ?nextchar make-terminal ;
1.1 anton 252:
253: char a char z .. char A char Z .. union char _ singleton union charclass letter
254: char 0 char 9 .. charclass digit
1.45 anton 255: bl singleton tab-char over add-member charclass white
1.1 anton 256: nl-char singleton eof-char over add-member complement charclass nonl
1.46 pazsan 257: nl-char singleton eof-char over add-member
258: char : over add-member complement charclass nocolonnl
259: bl 1+ maxchar .. char \ singleton complement intersection
260: charclass nowhitebq
261: bl 1+ maxchar .. charclass nowhite
1.1 anton 262: char " singleton eof-char over add-member complement charclass noquote
263: nl-char singleton charclass nl
264: eof-char singleton charclass eof
265:
266:
267: (( letter (( letter || digit )) **
1.51 anton 268: )) <- c-ident ( -- )
269:
270: (( ` # ?? (( letter || digit || ` : )) **
271: )) <- stack-ident ( -- )
1.1 anton 272:
1.46 pazsan 273: (( nowhitebq nowhite ** ))
1.51 anton 274: <- forth-ident ( -- )
1.1 anton 275:
1.42 jwilke 276: Variable forth-flag
277: Variable c-flag
278:
1.54 anton 279: (( (( ` e || ` E )) {{ start }} nonl **
280: {{ end evaluate }}
281: )) <- eval-comment ( ... -- ... )
282:
1.42 jwilke 283: (( (( ` f || ` F )) {{ start }} nonl **
284: {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
285: )) <- forth-comment ( -- )
286:
287: (( (( ` c || ` C )) {{ start }} nonl **
288: {{ end c-flag @ IF type cr ELSE 2drop THEN }}
289: )) <- c-comment ( -- )
290:
1.43 jwilke 291: (( ` - nonl ** {{
292: forth-flag @ IF ." [ELSE]" cr THEN
293: c-flag @ IF ." #else" cr THEN }}
294: )) <- else-comment
295:
296: (( ` + {{ start }} nonl ** {{ end
297: dup
298: IF c-flag @
299: IF ." #ifdef HAS_" bounds ?DO I c@ toupper emit LOOP cr
300: THEN
301: forth-flag @
302: IF ." has? " type ." [IF]" cr THEN
303: ELSE 2drop
1.46 pazsan 304: c-flag @ IF ." #endif" cr THEN
305: forth-flag @ IF ." [THEN]" cr THEN
1.43 jwilke 306: THEN }}
307: )) <- if-comment
308:
1.54 anton 309: (( (( eval-comment || forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
1.42 jwilke 310:
1.43 jwilke 311: (( ` \ comment-body nl )) <- comment ( -- )
1.1 anton 312:
1.51 anton 313: (( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) **
314: <- stack-items
315:
316: (( {{ effect-in }} stack-items {{ effect-in-end ! }}
1.45 anton 317: ` - ` - white **
1.51 anton 318: {{ effect-out }} stack-items {{ effect-out-end ! }}
1.1 anton 319: )) <- stack-effect ( -- )
320:
1.57 anton 321: (( {{ s" " doc 2! s" " forth-code 2! s" " wordset 2! }}
1.17 anton 322: (( {{ line @ name-line ! filename 2@ name-filename 2! }}
1.51 anton 323: {{ start }} forth-ident {{ end 2dup forth-name 2! c-name 2! }} white ++
1.45 anton 324: ` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white **
1.57 anton 325: (( {{ start }} forth-ident {{ end wordset 2! }} white **
326: (( {{ start }} c-ident {{ end c-name 2! }} )) ??
327: )) ?? nl
1.1 anton 328: ))
1.58 anton 329: (( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " white ** nl )) ??
1.59 anton 330: {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl white ** )) ** {{ end c-code 2! skipsynclines on }}
1.58 anton 331: (( ` : white ** nl
1.59 anton 332: {{ start }} (( nonl ++ nl white ** )) ++ {{ end forth-code 2! }}
1.46 pazsan 333: )) ?? {{ printprim }}
1.1 anton 334: (( nl || eof ))
335: )) <- primitive ( -- )
336:
1.59 anton 337: (( (( comment || primitive || nl white ** )) ** eof ))
1.1 anton 338: parser primitives2something
1.3 pazsan 339: warnings @ [IF]
1.1 anton 340: .( parser generated ok ) cr
1.3 pazsan 341: [THEN]
1.1 anton 342:
343: : primfilter ( file-id xt -- )
344: \ fileid is for the input file, xt ( -- ) is for the output word
345: output !
1.18 anton 346: here dup rawinput ! cookedinput !
1.41 anton 347: here unused rot read-file throw
348: dup here + endrawinput !
349: allot
1.2 pazsan 350: align
1.17 anton 351: checksyncline
1.18 anton 352: \ begin
353: \ getinput dup eof-char = ?EXIT emit true ?nextchar
354: \ again ;
1.1 anton 355: primitives2something ;
356:
357: \ types
358:
1.49 anton 359: : stack-access ( n stack -- )
360: \ print a stack access at index n of stack
361: stack-pointer 2@ type
362: dup
363: if
364: ." [" 0 .r ." ]"
365: else
366: drop ." TOS"
367: endif ;
1.1 anton 368:
1.53 anton 369: : item-in-index { item -- n }
1.49 anton 370: \ n is the index of item (in the in-effect)
1.53 anton 371: item item-stack @ dup >r stack-in @ ( in-size r:stack )
372: item r> stack-in-index-xt @ execute ;
1.1 anton 373:
374: : fetch-single ( item -- )
1.49 anton 375: \ fetch a single stack item from its stack
1.1 anton 376: >r
1.8 pazsan 377: r@ item-name 2@ type
378: ." = ("
1.1 anton 379: r@ item-type @ type-c-name 2@ type ." ) "
1.49 anton 380: r@ item-in-index r@ item-stack @ stack-access
381: ." ;" cr
1.1 anton 382: rdrop ;
383:
384: : fetch-double ( item -- )
1.49 anton 385: \ fetch a double stack item from its stack
1.1 anton 386: >r
1.20 anton 387: ." FETCH_DCELL("
388: r@ item-name 2@ type ." , "
1.61 anton 389: r@ item-in-index r@ item-stack @ 2dup ." (Cell)" stack-access
390: ." , " -1 under+ ." (Cell)" stack-access
1.20 anton 391: ." );" cr
1.1 anton 392: rdrop ;
393:
1.49 anton 394: : same-as-in? ( item -- f )
395: \ f is true iff the offset and stack of item is the same as on input
1.1 anton 396: >r
397: r@ item-name 2@ items @ search-wordlist 0=
1.8 pazsan 398: abort" bug"
1.1 anton 399: execute @
400: dup r@ =
401: if \ item first appeared in output
402: drop false
403: else
1.49 anton 404: dup item-stack @ r@ item-stack @ =
405: swap item-offset @ r@ item-offset @ = and
1.1 anton 406: endif
407: rdrop ;
408:
1.49 anton 409: : item-out-index ( item -- n )
410: \ n is the index of item (in the in-effect)
411: >r r@ item-stack @ stack-out @ r> item-offset @ - 1- ;
1.31 pazsan 412:
1.1 anton 413: : really-store-single ( item -- )
414: >r
1.49 anton 415: r@ item-out-index r@ item-stack @ stack-access ." = "
416: r@ item-stack @ stack-cast 2@ type
1.1 anton 417: r@ item-name 2@ type ." ;"
418: rdrop ;
419:
420: : store-single ( item -- )
421: >r
1.49 anton 422: r@ same-as-in?
1.1 anton 423: if
1.49 anton 424: r@ item-in-index 0= r@ item-out-index 0= xor
1.1 anton 425: if
1.49 anton 426: ." IF_" r@ item-stack @ stack-pointer 2@ type
427: ." TOS(" r@ really-store-single ." );" cr
1.1 anton 428: endif
429: else
430: r@ really-store-single cr
431: endif
432: rdrop ;
433:
434: : store-double ( item -- )
435: \ !! store optimization is not performed, because it is not yet needed
436: >r
1.20 anton 437: ." STORE_DCELL(" r@ item-name 2@ type ." , "
1.49 anton 438: r@ item-out-index r@ item-stack @ 2dup stack-access
439: ." , " -1 under+ stack-access
1.20 anton 440: ." );" cr
1.1 anton 441: rdrop ;
442:
1.54 anton 443: : single ( -- xt1 xt2 n )
444: ['] fetch-single ['] store-single 1 ;
1.1 anton 445:
1.54 anton 446: : double ( -- xt1 xt2 n )
447: ['] fetch-double ['] store-double 2 ;
1.1 anton 448:
449: : s, ( addr u -- )
450: \ allocate a string
451: here swap dup allot move ;
452:
1.50 anton 453: wordlist constant prefixes
454:
455: : declare ( addr "name" -- )
456: \ remember that there is a stack item at addr called name
457: create , ;
458:
459: : !default ( w addr -- )
460: dup @ if
461: 2drop \ leave nonzero alone
462: else
463: !
464: endif ;
465:
466: : create-type { addr u xt1 xt2 n stack -- } ( "prefix" -- )
1.49 anton 467: \ describes a type
468: \ addr u specifies the C type name
469: \ stack effect entries of the type start with prefix
470: create type% %allot >r
471: addr u save-mem r@ type-c-name 2!
472: xt1 r@ type-fetch !
473: xt2 r@ type-store !
474: n r@ type-size !
475: stack r@ type-stack !
476: rdrop ;
1.1 anton 477:
1.54 anton 478: : type-prefix ( xt1 xt2 n stack "prefix" -- )
1.50 anton 479: create-type
480: does> ( item -- )
481: \ initialize item
482: { item typ }
483: typ item item-type !
484: typ type-stack @ item item-stack !default
485: item item-name 2@ items @ search-wordlist 0= if \ new name
486: item item-name 2@ 2dup nextname item declare
487: typ type-c-name 2@ type space type ." ;" cr
488: else
489: drop
490: endif ;
491:
492: : execute-prefix ( item addr1 u1 -- )
493: \ execute the word ( item -- ) associated with the longest prefix
494: \ of addr1 u1
495: 0 swap ?do
496: dup i prefixes search-wordlist
497: if \ ok, we have the type ( item addr1 xt )
498: nip execute
499: UNLOOP EXIT
500: endif
501: -1 s+loop
502: \ we did not find a type, abort
503: true abort" unknown prefix" ;
1.1 anton 504:
505: : declaration ( item -- )
1.50 anton 506: dup item-name 2@ execute-prefix ;
1.1 anton 507:
1.51 anton 508: : stack-prefix ( stack "prefix" -- )
509: name tuck nextname create ( stack length ) 2,
510: does> ( item -- )
511: 2@ { item stack prefix-length }
512: item item-name 2@ prefix-length /string item item-name 2!
513: stack item item-stack !
514: item declaration ;
515:
1.1 anton 516: : declaration-list ( addr1 addr2 -- )
517: swap ?do
518: i declaration
1.49 anton 519: item% %size +loop ;
1.8 pazsan 520:
1.1 anton 521: : declarations ( -- )
522: wordlist dup items ! set-current
523: effect-in effect-in-end @ declaration-list
524: effect-out effect-out-end @ declaration-list ;
525:
526: \ offset computation
527: \ the leftmost (i.e. deepest) item has offset 0
528: \ the rightmost item has the highest offset
529:
1.49 anton 530: : compute-offset { item xt -- }
531: \ xt specifies in/out; update stack-in/out and set item-offset
532: item item-type @ type-size @
533: item item-stack @ xt execute dup @ >r +!
534: r> item item-offset ! ;
535:
536: : compute-list ( addr1 addr2 xt -- )
537: { xt }
538: swap u+do
539: i xt compute-offset
540: item% %size +loop ;
541:
542: : clear-stack { -- }
543: dup stack-in off stack-out off ;
1.1 anton 544:
545: : compute-offsets ( -- )
1.51 anton 546: data-stack clear-stack fp-stack clear-stack return-stack clear-stack
1.53 anton 547: inst-stream clear-stack
1.49 anton 548: effect-in effect-in-end @ ['] stack-in compute-list
1.53 anton 549: effect-out effect-out-end @ ['] stack-out compute-list
550: inst-stream stack-out @ 0<> abort" # can only be on the input side" ;
1.49 anton 551:
552: : flush-a-tos { stack -- }
553: stack stack-out @ 0<> stack stack-in @ 0= and
554: if
555: ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
556: 2dup type ." [0] = " type ." TOS);" cr
557: endif ;
1.1 anton 558:
559: : flush-tos ( -- )
1.51 anton 560: data-stack flush-a-tos
561: fp-stack flush-a-tos
562: return-stack flush-a-tos ;
1.49 anton 563:
564: : fill-a-tos { stack -- }
565: stack stack-out @ 0= stack stack-in @ 0<> and
566: if
567: ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
568: 2dup type ." TOS = " type ." [0]);" cr
569: endif ;
1.1 anton 570:
571: : fill-tos ( -- )
1.53 anton 572: \ !! inst-stream for prefetching?
1.51 anton 573: fp-stack fill-a-tos
574: data-stack fill-a-tos
575: return-stack fill-a-tos ;
1.49 anton 576:
577: : fetch ( addr -- )
578: dup item-type @ type-fetch @ execute ;
1.1 anton 579:
580: : fetches ( -- )
581: effect-in-end @ effect-in ?do
582: i fetch
1.49 anton 583: item% %size +loop ;
584:
585: : stack-pointer-update { stack -- }
586: \ stack grow downwards
587: stack stack-in @ stack stack-out @ -
588: ?dup-if \ this check is not necessary, gcc would do this for us
589: stack stack-pointer 2@ type ." += " 0 .r ." ;" cr
590: endif ;
1.1 anton 591:
1.55 anton 592: : inst-pointer-update ( -- )
593: inst-stream stack-in @ ?dup-if
594: ." INC_IP(" 0 .r ." );" cr
595: endif ;
596:
1.1 anton 597: : stack-pointer-updates ( -- )
1.55 anton 598: inst-pointer-update
1.51 anton 599: data-stack stack-pointer-update
600: fp-stack stack-pointer-update
601: return-stack stack-pointer-update ;
1.1 anton 602:
603: : store ( item -- )
604: \ f is true if the item should be stored
605: \ f is false if the store is probably not necessary
1.49 anton 606: dup item-type @ type-store @ execute ;
1.1 anton 607:
608: : stores ( -- )
609: effect-out-end @ effect-out ?do
610: i store
1.49 anton 611: item% %size +loop ;
1.8 pazsan 612:
1.52 anton 613: : output-c-tail ( -- )
614: \ the final part of the generated C code
615: ." NEXT_P1;" cr
616: stores
617: fill-tos
618: ." NEXT_P2;" cr ;
619:
620: : type-c ( c-addr u -- )
621: \ like TYPE, but replaces "TAIL;" with tail code
622: begin ( c-addr1 u1 )
623: 2dup s" TAIL;" search
624: while ( c-addr1 u1 c-addr3 u3 )
625: 2dup 2>r drop nip over - type
626: output-c-tail
627: 2r> 5 /string
628: \ !! resync #line missing
629: repeat
630: 2drop type ;
631:
1.63 ! anton 632: : print-type-prefix ( type -- )
! 633: body> >head .name ;
! 634:
! 635: : print-debug-arg { item -- }
! 636: ." fputs(" quote space item item-name 2@ type ." =" quote ." , vm_out); "
! 637: ." printarg_" item item-type @ print-type-prefix
! 638: ." (" item item-name 2@ type ." );" cr ;
! 639:
! 640: : print-debug-args ( -- )
! 641: ." #ifdef VM_DEBUG" cr
! 642: ." if (vm_debug) {" cr
! 643: effect-in-end @ effect-in ?do
! 644: i print-debug-arg
! 645: item% %size +loop
! 646: ." fputc('\n', vm_out);" cr
! 647: ." }" cr
! 648: ." #endif" cr ;
! 649:
1.43 jwilke 650: : output-c ( -- )
1.45 anton 651: ." I_" c-name 2@ type ." : /* " forth-name 2@ type ." ( " stack-string 2@ type ." ) */" cr
1.1 anton 652: ." /* " doc 2@ type ." */" cr
1.63 ! anton 653: ." NAME(" quote forth-name 2@ type quote ." )" cr \ debugging
1.1 anton 654: ." {" cr
655: ." DEF_CA" cr
656: declarations
657: compute-offsets \ for everything else
1.13 anton 658: ." NEXT_P0;" cr
659: flush-tos
1.1 anton 660: fetches
1.63 ! anton 661: print-debug-args
1.13 anton 662: stack-pointer-updates
1.1 anton 663: ." {" cr
1.63 ! anton 664: ." #line " c-line @ . quote c-filename 2@ type quote cr
1.52 anton 665: c-code 2@ type-c
1.1 anton 666: ." }" cr
1.52 anton 667: output-c-tail
1.1 anton 668: ." }" cr
669: cr
670: ;
671:
1.56 anton 672: : disasm-arg { item -- }
673: item item-stack @ inst-stream = if
1.63 ! anton 674: ." fputc(' ', vm_out); "
! 675: ." printarg_" item item-type @ print-type-prefix
! 676: ." ((" item item-type @ type-c-name 2@ type ." )"
! 677: ." ip[" item item-offset @ 1+ 0 .r ." ]);" cr
1.56 anton 678: endif ;
679:
680: : disasm-args ( -- )
681: effect-in-end @ effect-in ?do
682: i disasm-arg
683: item% %size +loop ;
684:
685: : output-disasm ( -- )
686: \ generate code for disassembling VM instructions
687: ." if (ip[0] == prim[" function-number @ 0 .r ." ]) {" cr
1.63 ! anton 688: ." fputs(" quote forth-name 2@ type quote ." , vm_out);" cr
1.56 anton 689: ." /* " declarations ." */" cr
690: compute-offsets
691: disasm-args
692: ." ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr
693: ." } else "
694: 1 function-number +! ;
695:
1.60 anton 696: : gen-arg-parm { item -- }
697: item item-stack @ inst-stream = if
698: ." , " item item-type @ type-c-name 2@ type space
699: item item-name 2@ type
700: endif ;
701:
702: : gen-args-parm ( -- )
703: effect-in-end @ effect-in ?do
704: i gen-arg-parm
705: item% %size +loop ;
706:
707: : gen-arg-gen { item -- }
708: item item-stack @ inst-stream = if
709: ." genarg_" item item-type @ print-type-prefix
710: ." (ctp, " item item-name 2@ type ." );" cr
711: endif ;
712:
713: : gen-args-gen ( -- )
714: effect-in-end @ effect-in ?do
715: i gen-arg-gen
716: item% %size +loop ;
717:
718: : output-gen ( -- )
719: \ generate C code for generating VM instructions
720: ." /* " declarations ." */" cr
721: compute-offsets
722: ." void gen_" c-name 2@ type ." (Inst **ctp" gen-args-parm ." )" cr
723: ." {" cr
724: ." gen_inst(ctp, vm_prim[" function-number @ 0 .r ." ]);" cr
725: gen-args-gen
726: ." }" cr
727: 1 function-number +! ;
728:
1.49 anton 729: : stack-used? { stack -- f }
730: stack stack-in @ stack stack-out @ or 0<> ;
1.44 jwilke 731:
1.30 pazsan 732: : output-funclabel ( -- )
733: 1 function-number +!
734: ." &I_" c-name 2@ type ." ," cr ;
735:
736: : output-forthname ( -- )
737: 1 function-number +!
738: '" emit forth-name 2@ type '" emit ." ," cr ;
739:
740: : output-c-func ( -- )
1.44 jwilke 741: \ used for word libraries
1.30 pazsan 742: 1 function-number +!
1.44 jwilke 743: ." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP) /* " forth-name 2@ type
1.30 pazsan 744: ." ( " stack-string 2@ type ." ) */" cr
745: ." /* " doc 2@ type ." */" cr
1.63 ! anton 746: ." NAME(" quote forth-name 2@ type quote ." )" cr
1.30 pazsan 747: \ debugging
748: ." {" cr
749: declarations
750: compute-offsets \ for everything else
1.53 anton 751: inst-stream stack-used? IF ." Cell *ip=IP;" cr THEN
1.51 anton 752: data-stack stack-used? IF ." Cell *sp=SP;" cr THEN
753: fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN
754: return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN
1.30 pazsan 755: flush-tos
756: fetches
757: stack-pointer-updates
1.49 anton 758: fp-stack stack-used? IF ." *FP=fp;" cr THEN
1.30 pazsan 759: ." {" cr
1.63 ! anton 760: ." #line " c-line @ . quote c-filename 2@ type quote cr
1.30 pazsan 761: c-code 2@ type
762: ." }" cr
763: stores
764: fill-tos
1.44 jwilke 765: ." return (sp);" cr
1.30 pazsan 766: ." }" cr
767: cr ;
768:
1.43 jwilke 769: : output-label ( -- )
1.34 pazsan 770: ." (Label)&&I_" c-name 2@ type ." ," cr
771: -1 primitive-number +! ;
1.1 anton 772:
1.43 jwilke 773: : output-alias ( -- )
1.38 pazsan 774: ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
1.34 pazsan 775: -1 primitive-number +! ;
1.1 anton 776:
1.43 jwilke 777: : output-forth ( -- )
1.30 pazsan 778: forth-code @ 0=
779: IF \ output-alias
1.28 jwilke 780: \ this is bad for ec: an alias is compiled if tho word does not exist!
781: \ JAW
1.30 pazsan 782: ELSE ." : " forth-name 2@ type ." ( "
1.49 anton 783: stack-string 2@ type ." )" cr
1.30 pazsan 784: forth-code 2@ type cr
785: -1 primitive-number +!
786: THEN ;
1.10 anton 787:
1.17 anton 788: : output-tag-file ( -- )
789: name-filename 2@ last-name-filename 2@ compare if
790: name-filename 2@ last-name-filename 2!
791: #ff emit cr
792: name-filename 2@ type
793: ." ,0" cr
794: endif ;
795:
796: : output-tag ( -- )
797: output-tag-file
798: forth-name 2@ 1+ type
799: 127 emit
800: space forth-name 2@ type space
801: 1 emit
802: name-line @ 0 .r
803: ." ,0" cr ;
804:
1.10 anton 805: [IFDEF] documentation
806: : register-doc ( -- )
807: get-current documentation set-current
808: forth-name 2@ nextname create
809: forth-name 2@ 2,
1.15 anton 810: stack-string 2@ condition-stack-effect 2,
1.10 anton 811: wordset 2@ 2,
1.15 anton 812: c-name 2@ condition-pronounciation 2,
1.10 anton 813: doc 2@ 2,
814: set-current ;
815: [THEN]
1.8 pazsan 816:
1.1 anton 817: : process-file ( addr u xt -- )
1.17 anton 818: >r
1.61 anton 819: save-mem 2dup filename 2!
1.30 pazsan 820: 0 function-number !
1.17 anton 821: r/o open-file abort" cannot open file"
822: warnings @ if
823: ." ------------ CUT HERE -------------" cr endif
824: r> primfilter ;
1.30 pazsan 825:
826: : process ( xt -- )
827: bl word count rot
828: process-file ;
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