Annotation of gforth/prims2x.fs, revision 1.53
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:
85: variable output \ xt ( -- ) of output word
86:
87: : printprim ( -- )
88: output @ execute ;
89:
1.49 anton 90: struct%
91: cell% 2* field stack-pointer \ stackpointer name
92: cell% 2* field stack-cast \ cast string for assignments to stack elements
1.53 ! anton 93: cell% field stack-in-index-xt \ ( in-size item -- in-index )
1.49 anton 94: cell% field stack-in \ number of stack items in effect in
95: cell% field stack-out \ number of stack items in effect out
96: end-struct stack%
97:
1.53 ! anton 98: struct%
! 99: cell% 2* field item-name \ name, excluding stack prefixes
! 100: cell% field item-stack \ descriptor for the stack used, 0 is default
! 101: cell% field item-type \ descriptor for the item type
! 102: cell% field item-offset \ offset in stack items, 0 for the deepest element
! 103: end-struct item%
! 104:
! 105: struct%
! 106: cell% 2* field type-c-name
! 107: cell% field type-stack \ default stack
! 108: cell% field type-size \ size of type in stack items
! 109: cell% field type-fetch \ xt of fetch code generator ( item -- )
! 110: cell% field type-store \ xt of store code generator ( item -- )
! 111: end-struct type%
! 112:
! 113: : stack-in-index ( in-size item -- in-index )
! 114: item-offset @ - 1- ;
! 115:
! 116: : inst-in-index ( in-size item -- in-index )
! 117: nip dup item-offset @ swap item-type @ type-size @ + 1- ;
! 118:
1.49 anton 119: : make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- )
120: create stack% %allot >r
121: save-mem r@ stack-cast 2!
1.53 ! anton 122: save-mem r@ stack-pointer 2!
! 123: ['] stack-in-index r> stack-in-index-xt ! ;
1.49 anton 124:
125: s" sp" save-mem s" (Cell)" make-stack data-stack
126: s" fp" save-mem s" " make-stack fp-stack
1.51 anton 127: s" rp" save-mem s" (Cell)" make-stack return-stack
1.53 ! anton 128: s" ip" save-mem s" error don't use # on results" make-stack inst-stream
! 129: ' inst-in-index inst-stream stack-in-index-xt !
1.49 anton 130: \ !! initialize stack-in and stack-out
131:
132: \ stack items
133:
134: : init-item ( addr u addr1 -- )
135: \ initialize item at addr1 with name addr u
136: \ !! remove stack prefix
137: dup item% %size erase
138: item-name 2! ;
139:
140: \ various variables for storing stuff of one primitive
1.1 anton 141:
142: 2variable forth-name
143: 2variable wordset
144: 2variable c-name
145: 2variable doc
146: 2variable c-code
147: 2variable forth-code
148: 2variable stack-string
1.49 anton 149: create effect-in max-effect item% %size * allot
150: create effect-out max-effect item% %size * allot
1.1 anton 151: variable effect-in-end ( pointer )
152: variable effect-out-end ( pointer )
1.17 anton 153: variable c-line
154: 2variable c-filename
155: variable name-line
156: 2variable name-filename
157: 2variable last-name-filename
1.1 anton 158:
1.14 pazsan 159: variable primitive-number -10 primitive-number !
1.30 pazsan 160: Variable function-number 0 function-number !
1.1 anton 161:
162: \ for several reasons stack items of a word are stored in a wordlist
163: \ since neither forget nor marker are implemented yet, we make a new
164: \ wordlist for every word and store it in the variable items
165: variable items
166:
167: \ a few more set ops
168:
169: : bit-equivalent ( w1 w2 -- w3 )
170: xor invert ;
171:
172: : complement ( set1 -- set2 )
173: empty ['] bit-equivalent binary-set-operation ;
174:
175: \ the parser
176:
177: eof-char max-member \ the whole character set + EOF
178:
179: : getinput ( -- n )
1.18 anton 180: rawinput @ endrawinput @ =
1.1 anton 181: if
1.18 anton 182: eof-char
1.1 anton 183: else
1.18 anton 184: cookedinput @ c@
1.1 anton 185: endif ;
186:
187: :noname ( n -- )
188: dup bl > if
189: emit space
190: else
191: .
192: endif ;
193: print-token !
194:
195: : testchar? ( set -- f )
196: getinput member? ;
197: ' testchar? test-vector !
198:
1.17 anton 199: : checksyncline ( -- )
200: \ when input points to a newline, check if the next line is a
201: \ sync line. If it is, perform the appropriate actions.
1.18 anton 202: rawinput @ >r
1.17 anton 203: s" #line " r@ over compare 0<> if
204: rdrop 1 line +! EXIT
205: endif
206: 0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
207: dup c@ bl = if
208: char+ dup c@ [char] " <> abort" sync line syntax"
1.24 anton 209: char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
1.17 anton 210: char+
211: endif
212: dup c@ nl-char <> abort" sync line syntax"
213: skipsynclines @ if
1.18 anton 214: dup char+ rawinput !
215: rawinput @ c@ cookedinput @ c!
1.17 anton 216: endif
217: drop ;
218:
1.1 anton 219: : ?nextchar ( f -- )
1.17 anton 220: ?not? if
1.18 anton 221: filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
1.17 anton 222: getinput . cr
1.18 anton 223: rawinput @ endrawinput @ over - 100 min type cr
1.17 anton 224: abort
225: endif
1.18 anton 226: rawinput @ endrawinput @ <> if
227: rawinput @ c@
228: 1 chars rawinput +!
229: 1 chars cookedinput +!
1.17 anton 230: nl-char = if
231: checksyncline
232: endif
1.18 anton 233: rawinput @ c@ cookedinput @ c!
1.17 anton 234: endif ;
1.1 anton 235:
236: : charclass ( set "name" -- )
237: ['] ?nextchar terminal ;
238:
239: : .. ( c1 c2 -- set )
240: ( creates a set that includes the characters c, c1<=c<=c2 )
241: empty copy-set
242: swap 1+ rot do
243: i over add-member
244: loop ;
245:
246: : ` ( -- terminal ) ( use: ` c )
247: ( creates anonymous terminal for the character c )
1.21 anton 248: char singleton ['] ?nextchar make-terminal ;
1.1 anton 249:
250: char a char z .. char A char Z .. union char _ singleton union charclass letter
251: char 0 char 9 .. charclass digit
1.45 anton 252: bl singleton tab-char over add-member charclass white
1.1 anton 253: nl-char singleton eof-char over add-member complement charclass nonl
1.46 pazsan 254: nl-char singleton eof-char over add-member
255: char : over add-member complement charclass nocolonnl
256: bl 1+ maxchar .. char \ singleton complement intersection
257: charclass nowhitebq
258: bl 1+ maxchar .. charclass nowhite
1.1 anton 259: char " singleton eof-char over add-member complement charclass noquote
260: nl-char singleton charclass nl
261: eof-char singleton charclass eof
262:
263:
264: (( letter (( letter || digit )) **
1.51 anton 265: )) <- c-ident ( -- )
266:
267: (( ` # ?? (( letter || digit || ` : )) **
268: )) <- stack-ident ( -- )
1.1 anton 269:
1.46 pazsan 270: (( nowhitebq nowhite ** ))
1.51 anton 271: <- forth-ident ( -- )
1.1 anton 272:
1.42 jwilke 273: Variable forth-flag
274: Variable c-flag
275:
276: (( (( ` f || ` F )) {{ start }} nonl **
277: {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
278: )) <- forth-comment ( -- )
279:
280: (( (( ` c || ` C )) {{ start }} nonl **
281: {{ end c-flag @ IF type cr ELSE 2drop THEN }}
282: )) <- c-comment ( -- )
283:
1.43 jwilke 284: (( ` - nonl ** {{
285: forth-flag @ IF ." [ELSE]" cr THEN
286: c-flag @ IF ." #else" cr THEN }}
287: )) <- else-comment
288:
289: (( ` + {{ start }} nonl ** {{ end
290: dup
291: IF c-flag @
292: IF ." #ifdef HAS_" bounds ?DO I c@ toupper emit LOOP cr
293: THEN
294: forth-flag @
295: IF ." has? " type ." [IF]" cr THEN
296: ELSE 2drop
1.46 pazsan 297: c-flag @ IF ." #endif" cr THEN
298: forth-flag @ IF ." [THEN]" cr THEN
1.43 jwilke 299: THEN }}
300: )) <- if-comment
301:
302: (( (( forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
1.42 jwilke 303:
1.43 jwilke 304: (( ` \ comment-body nl )) <- comment ( -- )
1.1 anton 305:
1.51 anton 306: (( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) **
307: <- stack-items
308:
309: (( {{ effect-in }} stack-items {{ effect-in-end ! }}
1.45 anton 310: ` - ` - white **
1.51 anton 311: {{ effect-out }} stack-items {{ effect-out-end ! }}
1.1 anton 312: )) <- stack-effect ( -- )
313:
314: (( {{ s" " doc 2! s" " forth-code 2! }}
1.17 anton 315: (( {{ line @ name-line ! filename 2@ name-filename 2! }}
1.51 anton 316: {{ start }} forth-ident {{ end 2dup forth-name 2! c-name 2! }} white ++
1.45 anton 317: ` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white **
1.51 anton 318: {{ start }} forth-ident {{ end wordset 2! }} white **
319: (( {{ start }} c-ident {{ end c-name 2! }} )) ?? nl
1.1 anton 320: ))
321: (( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
1.18 anton 322: {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl )) ** {{ end c-code 2! skipsynclines on }}
1.1 anton 323: (( ` : nl
324: {{ start }} (( nonl ++ nl )) ++ {{ end forth-code 2! }}
1.46 pazsan 325: )) ?? {{ printprim }}
1.1 anton 326: (( nl || eof ))
327: )) <- primitive ( -- )
328:
1.46 pazsan 329: (( (( comment || primitive || nl )) ** eof ))
1.1 anton 330: parser primitives2something
1.3 pazsan 331: warnings @ [IF]
1.1 anton 332: .( parser generated ok ) cr
1.3 pazsan 333: [THEN]
1.1 anton 334:
335: : primfilter ( file-id xt -- )
336: \ fileid is for the input file, xt ( -- ) is for the output word
337: output !
1.18 anton 338: here dup rawinput ! cookedinput !
1.41 anton 339: here unused rot read-file throw
340: dup here + endrawinput !
341: allot
1.2 pazsan 342: align
1.17 anton 343: checksyncline
1.18 anton 344: \ begin
345: \ getinput dup eof-char = ?EXIT emit true ?nextchar
346: \ again ;
1.1 anton 347: primitives2something ;
348:
349: \ types
350:
1.49 anton 351: : stack-access ( n stack -- )
352: \ print a stack access at index n of stack
353: stack-pointer 2@ type
354: dup
355: if
356: ." [" 0 .r ." ]"
357: else
358: drop ." TOS"
359: endif ;
1.1 anton 360:
1.53 ! anton 361: : item-in-index { item -- n }
1.49 anton 362: \ n is the index of item (in the in-effect)
1.53 ! anton 363: item item-stack @ dup >r stack-in @ ( in-size r:stack )
! 364: item r> stack-in-index-xt @ execute ;
1.1 anton 365:
366: : fetch-single ( item -- )
1.49 anton 367: \ fetch a single stack item from its stack
1.1 anton 368: >r
1.8 pazsan 369: r@ item-name 2@ type
370: ." = ("
1.1 anton 371: r@ item-type @ type-c-name 2@ type ." ) "
1.49 anton 372: r@ item-in-index r@ item-stack @ stack-access
373: ." ;" cr
1.1 anton 374: rdrop ;
375:
376: : fetch-double ( item -- )
1.49 anton 377: \ fetch a double stack item from its stack
1.1 anton 378: >r
1.20 anton 379: ." FETCH_DCELL("
380: r@ item-name 2@ type ." , "
1.49 anton 381: r@ item-in-index r@ item-stack @ 2dup stack-access
382: ." , " -1 under+ stack-access
1.20 anton 383: ." );" cr
1.1 anton 384: rdrop ;
385:
1.49 anton 386: : same-as-in? ( item -- f )
387: \ f is true iff the offset and stack of item is the same as on input
1.1 anton 388: >r
389: r@ item-name 2@ items @ search-wordlist 0=
1.8 pazsan 390: abort" bug"
1.1 anton 391: execute @
392: dup r@ =
393: if \ item first appeared in output
394: drop false
395: else
1.49 anton 396: dup item-stack @ r@ item-stack @ =
397: swap item-offset @ r@ item-offset @ = and
1.1 anton 398: endif
399: rdrop ;
400:
1.49 anton 401: : item-out-index ( item -- n )
402: \ n is the index of item (in the in-effect)
403: >r r@ item-stack @ stack-out @ r> item-offset @ - 1- ;
1.31 pazsan 404:
1.1 anton 405: : really-store-single ( item -- )
406: >r
1.49 anton 407: r@ item-out-index r@ item-stack @ stack-access ." = "
408: r@ item-stack @ stack-cast 2@ type
1.1 anton 409: r@ item-name 2@ type ." ;"
410: rdrop ;
411:
412: : store-single ( item -- )
413: >r
1.49 anton 414: r@ same-as-in?
1.1 anton 415: if
1.49 anton 416: r@ item-in-index 0= r@ item-out-index 0= xor
1.1 anton 417: if
1.49 anton 418: ." IF_" r@ item-stack @ stack-pointer 2@ type
419: ." TOS(" r@ really-store-single ." );" cr
1.1 anton 420: endif
421: else
422: r@ really-store-single cr
423: endif
424: rdrop ;
425:
426: : store-double ( item -- )
427: \ !! store optimization is not performed, because it is not yet needed
428: >r
1.20 anton 429: ." STORE_DCELL(" r@ item-name 2@ type ." , "
1.49 anton 430: r@ item-out-index r@ item-stack @ 2dup stack-access
431: ." , " -1 under+ stack-access
1.20 anton 432: ." );" cr
1.1 anton 433: rdrop ;
434:
435:
1.49 anton 436: : single-type ( -- xt1 xt2 n stack )
437: ['] fetch-single ['] store-single 1 data-stack ;
1.1 anton 438:
1.49 anton 439: : double-type ( -- xt1 xt2 n stack )
440: ['] fetch-double ['] store-double 2 data-stack ;
1.1 anton 441:
1.49 anton 442: : float-type ( -- xt1 xt2 n stack )
443: ['] fetch-single ['] store-single 1 fp-stack ;
1.1 anton 444:
445: : s, ( addr u -- )
446: \ allocate a string
447: here swap dup allot move ;
448:
1.50 anton 449: wordlist constant prefixes
450:
451: : declare ( addr "name" -- )
452: \ remember that there is a stack item at addr called name
453: create , ;
454:
455: : !default ( w addr -- )
456: dup @ if
457: 2drop \ leave nonzero alone
458: else
459: !
460: endif ;
461:
462: : create-type { addr u xt1 xt2 n stack -- } ( "prefix" -- )
1.49 anton 463: \ describes a type
464: \ addr u specifies the C type name
465: \ stack effect entries of the type start with prefix
466: create type% %allot >r
467: addr u save-mem r@ type-c-name 2!
468: xt1 r@ type-fetch !
469: xt2 r@ type-store !
470: n r@ type-size !
471: stack r@ type-stack !
472: rdrop ;
1.1 anton 473:
1.50 anton 474: : type-prefix ( addr u xt1 xt2 n stack "prefix" -- )
475: create-type
476: does> ( item -- )
477: \ initialize item
478: { item typ }
479: typ item item-type !
480: typ type-stack @ item item-stack !default
481: item item-name 2@ items @ search-wordlist 0= if \ new name
482: item item-name 2@ 2dup nextname item declare
483: typ type-c-name 2@ type space type ." ;" cr
484: else
485: drop
486: endif ;
487:
488: : execute-prefix ( item addr1 u1 -- )
489: \ execute the word ( item -- ) associated with the longest prefix
490: \ of addr1 u1
491: 0 swap ?do
492: dup i prefixes search-wordlist
493: if \ ok, we have the type ( item addr1 xt )
494: nip execute
495: UNLOOP EXIT
496: endif
497: -1 s+loop
498: \ we did not find a type, abort
499: true abort" unknown prefix" ;
1.1 anton 500:
501: : declaration ( item -- )
1.50 anton 502: dup item-name 2@ execute-prefix ;
1.1 anton 503:
1.51 anton 504: : stack-prefix ( stack "prefix" -- )
505: name tuck nextname create ( stack length ) 2,
506: does> ( item -- )
507: 2@ { item stack prefix-length }
508: item item-name 2@ prefix-length /string item item-name 2!
509: stack item item-stack !
510: item declaration ;
511:
1.1 anton 512: : declaration-list ( addr1 addr2 -- )
513: swap ?do
514: i declaration
1.49 anton 515: item% %size +loop ;
1.8 pazsan 516:
1.1 anton 517: : declarations ( -- )
518: wordlist dup items ! set-current
519: effect-in effect-in-end @ declaration-list
520: effect-out effect-out-end @ declaration-list ;
1.50 anton 521:
522: get-current
523: prefixes set-current
524:
525: s" Bool" single-type type-prefix f
526: s" Char" single-type type-prefix c
527: s" Cell" single-type type-prefix n
528: s" Cell" single-type type-prefix w
529: s" UCell" single-type type-prefix u
530: s" DCell" double-type type-prefix d
531: s" UDCell" double-type type-prefix ud
532: s" Float" float-type type-prefix r
533: s" Cell *" single-type type-prefix a_
534: s" Char *" single-type type-prefix c_
535: s" Float *" single-type type-prefix f_
536: s" DFloat *" single-type type-prefix df_
537: s" SFloat *" single-type type-prefix sf_
538: s" Xt" single-type type-prefix xt
539: s" WID" single-type type-prefix wid
540: s" struct F83Name *" single-type type-prefix f83name
541:
1.51 anton 542: return-stack stack-prefix R:
1.53 ! anton 543: inst-stream stack-prefix #
1.51 anton 544:
1.50 anton 545: set-current
1.1 anton 546:
547: \ offset computation
548: \ the leftmost (i.e. deepest) item has offset 0
549: \ the rightmost item has the highest offset
550:
1.49 anton 551: : compute-offset { item xt -- }
552: \ xt specifies in/out; update stack-in/out and set item-offset
553: item item-type @ type-size @
554: item item-stack @ xt execute dup @ >r +!
555: r> item item-offset ! ;
556:
557: : compute-list ( addr1 addr2 xt -- )
558: { xt }
559: swap u+do
560: i xt compute-offset
561: item% %size +loop ;
562:
563: : clear-stack { -- }
564: dup stack-in off stack-out off ;
1.1 anton 565:
566: : compute-offsets ( -- )
1.51 anton 567: data-stack clear-stack fp-stack clear-stack return-stack clear-stack
1.53 ! anton 568: inst-stream clear-stack
1.49 anton 569: effect-in effect-in-end @ ['] stack-in compute-list
1.53 ! anton 570: effect-out effect-out-end @ ['] stack-out compute-list
! 571: inst-stream stack-out @ 0<> abort" # can only be on the input side" ;
1.49 anton 572:
573: : flush-a-tos { stack -- }
574: stack stack-out @ 0<> stack stack-in @ 0= and
575: if
576: ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
577: 2dup type ." [0] = " type ." TOS);" cr
578: endif ;
1.1 anton 579:
580: : flush-tos ( -- )
1.51 anton 581: data-stack flush-a-tos
582: fp-stack flush-a-tos
583: return-stack flush-a-tos ;
1.49 anton 584:
585: : fill-a-tos { stack -- }
586: stack stack-out @ 0= stack stack-in @ 0<> and
587: if
588: ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
589: 2dup type ." TOS = " type ." [0]);" cr
590: endif ;
1.1 anton 591:
592: : fill-tos ( -- )
1.53 ! anton 593: \ !! inst-stream for prefetching?
1.51 anton 594: fp-stack fill-a-tos
595: data-stack fill-a-tos
596: return-stack fill-a-tos ;
1.49 anton 597:
598: : fetch ( addr -- )
599: dup item-type @ type-fetch @ execute ;
1.1 anton 600:
601: : fetches ( -- )
602: effect-in-end @ effect-in ?do
603: i fetch
1.49 anton 604: item% %size +loop ;
605:
606: : stack-pointer-update { stack -- }
607: \ stack grow downwards
608: stack stack-in @ stack stack-out @ -
609: ?dup-if \ this check is not necessary, gcc would do this for us
610: stack stack-pointer 2@ type ." += " 0 .r ." ;" cr
611: endif ;
1.1 anton 612:
613: : stack-pointer-updates ( -- )
1.53 ! anton 614: inst-stream stack-pointer-update
1.51 anton 615: data-stack stack-pointer-update
616: fp-stack stack-pointer-update
617: return-stack stack-pointer-update ;
1.1 anton 618:
619: : store ( item -- )
620: \ f is true if the item should be stored
621: \ f is false if the store is probably not necessary
1.49 anton 622: dup item-type @ type-store @ execute ;
1.1 anton 623:
624: : stores ( -- )
625: effect-out-end @ effect-out ?do
626: i store
1.49 anton 627: item% %size +loop ;
1.8 pazsan 628:
1.52 anton 629: : output-c-tail ( -- )
630: \ the final part of the generated C code
631: ." NEXT_P1;" cr
632: stores
633: fill-tos
634: ." NEXT_P2;" cr ;
635:
636: : type-c ( c-addr u -- )
637: \ like TYPE, but replaces "TAIL;" with tail code
638: begin ( c-addr1 u1 )
639: 2dup s" TAIL;" search
640: while ( c-addr1 u1 c-addr3 u3 )
641: 2dup 2>r drop nip over - type
642: output-c-tail
643: 2r> 5 /string
644: \ !! resync #line missing
645: repeat
646: 2drop type ;
647:
1.43 jwilke 648: : output-c ( -- )
1.45 anton 649: ." I_" c-name 2@ type ." : /* " forth-name 2@ type ." ( " stack-string 2@ type ." ) */" cr
1.1 anton 650: ." /* " doc 2@ type ." */" cr
1.13 anton 651: ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr \ debugging
1.1 anton 652: ." {" cr
653: ." DEF_CA" cr
654: declarations
655: compute-offsets \ for everything else
1.13 anton 656: ." NEXT_P0;" cr
657: flush-tos
1.1 anton 658: fetches
1.13 anton 659: stack-pointer-updates
1.1 anton 660: ." {" cr
1.17 anton 661: ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
1.52 anton 662: c-code 2@ type-c
1.1 anton 663: ." }" cr
1.52 anton 664: output-c-tail
1.1 anton 665: ." }" cr
666: cr
667: ;
668:
1.49 anton 669: : stack-used? { stack -- f }
670: stack stack-in @ stack stack-out @ or 0<> ;
1.44 jwilke 671:
1.30 pazsan 672: : output-funclabel ( -- )
673: 1 function-number +!
674: ." &I_" c-name 2@ type ." ," cr ;
675:
676: : output-forthname ( -- )
677: 1 function-number +!
678: '" emit forth-name 2@ type '" emit ." ," cr ;
679:
680: : output-c-func ( -- )
1.44 jwilke 681: \ used for word libraries
1.30 pazsan 682: 1 function-number +!
1.44 jwilke 683: ." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP) /* " forth-name 2@ type
1.30 pazsan 684: ." ( " stack-string 2@ type ." ) */" cr
685: ." /* " doc 2@ type ." */" cr
686: ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr
687: \ debugging
688: ." {" cr
689: declarations
690: compute-offsets \ for everything else
1.53 ! anton 691: inst-stream stack-used? IF ." Cell *ip=IP;" cr THEN
1.51 anton 692: data-stack stack-used? IF ." Cell *sp=SP;" cr THEN
693: fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN
694: return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN
1.30 pazsan 695: flush-tos
696: fetches
697: stack-pointer-updates
1.49 anton 698: fp-stack stack-used? IF ." *FP=fp;" cr THEN
1.30 pazsan 699: ." {" cr
700: ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
701: c-code 2@ type
702: ." }" cr
703: stores
704: fill-tos
1.44 jwilke 705: ." return (sp);" cr
1.30 pazsan 706: ." }" cr
707: cr ;
708:
1.43 jwilke 709: : output-label ( -- )
1.34 pazsan 710: ." (Label)&&I_" c-name 2@ type ." ," cr
711: -1 primitive-number +! ;
1.1 anton 712:
1.43 jwilke 713: : output-alias ( -- )
1.38 pazsan 714: ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
1.34 pazsan 715: -1 primitive-number +! ;
1.1 anton 716:
1.43 jwilke 717: : output-forth ( -- )
1.30 pazsan 718: forth-code @ 0=
719: IF \ output-alias
1.28 jwilke 720: \ this is bad for ec: an alias is compiled if tho word does not exist!
721: \ JAW
1.30 pazsan 722: ELSE ." : " forth-name 2@ type ." ( "
1.49 anton 723: stack-string 2@ type ." )" cr
1.30 pazsan 724: forth-code 2@ type cr
725: -1 primitive-number +!
726: THEN ;
1.10 anton 727:
1.17 anton 728: : output-tag-file ( -- )
729: name-filename 2@ last-name-filename 2@ compare if
730: name-filename 2@ last-name-filename 2!
731: #ff emit cr
732: name-filename 2@ type
733: ." ,0" cr
734: endif ;
735:
736: : output-tag ( -- )
737: output-tag-file
738: forth-name 2@ 1+ type
739: 127 emit
740: space forth-name 2@ type space
741: 1 emit
742: name-line @ 0 .r
743: ." ,0" cr ;
744:
1.10 anton 745: [IFDEF] documentation
746: : register-doc ( -- )
747: get-current documentation set-current
748: forth-name 2@ nextname create
749: forth-name 2@ 2,
1.15 anton 750: stack-string 2@ condition-stack-effect 2,
1.10 anton 751: wordset 2@ 2,
1.15 anton 752: c-name 2@ condition-pronounciation 2,
1.10 anton 753: doc 2@ 2,
754: set-current ;
755: [THEN]
1.8 pazsan 756:
1.1 anton 757: : process-file ( addr u xt -- )
1.17 anton 758: >r
759: 2dup filename 2!
1.30 pazsan 760: 0 function-number !
1.17 anton 761: r/o open-file abort" cannot open file"
762: warnings @ if
763: ." ------------ CUT HERE -------------" cr endif
764: r> primfilter ;
1.30 pazsan 765:
766: : process ( xt -- )
767: bl word count rot
768: process-file ;
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