Annotation of gforth/cross.fs, revision 1.55
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
4: \ Copyright (C) 1995 Free Software Foundation, Inc.
5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
20: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1.1 anton 21:
22: \ Log:
23: \ changed in ; [ to state off 12may93jaw
24: \ included place +place 12may93jaw
25: \ for a created word (variable, constant...)
26: \ is now an alias in the target voabulary.
27: \ this means it is no longer necessary to
28: \ switch between vocabularies for variable
29: \ initialization 12may93jaw
30: \ discovered error in DOES>
31: \ replaced !does with (;code) 16may93jaw
32: \ made complete redesign and
33: \ introduced two vocs method
34: \ to be asure that the right words
35: \ are found 08jun93jaw
36: \ btw: ! works not with 16 bit
37: \ targets 09jun93jaw
38: \ added: 2user and value 11jun93jaw
39:
1.48 anton 40: \ needed? works better now!!! 01mar97jaw
41: \ mach file is only loaded into target
42: \ cell corrected
1.52 jwilke 43: \ romable extansions 27apr97-5jun97jaw
1.54 pazsan 44: \ environmental query support 01sep97jaw
45: \ added own [IF] ... [ELSE] ... [THEN] 14sep97jaw
46: \ extra resolver for doers 20sep97jaw
47: \ added killref for DOES> 20sep97jaw
1.48 anton 48:
49:
1.52 jwilke 50: hex \ the defualt base for the cross-compiler is hex !!
51: Warnings off
52:
53: \ words that are generaly useful
54:
55: : >wordlist ( vocabulary-xt -- wordlist-struct )
56: also execute get-order swap >r 1- set-order r> ;
57:
58: : umax 2dup u< IF swap THEN drop ;
59: : umin 2dup u> IF swap THEN drop ;
1.1 anton 60:
1.23 pazsan 61: : string, ( c-addr u -- )
62: \ puts down string as cstring
63: dup c, here swap chars dup allot move ;
1.5 pazsan 64:
1.52 jwilke 65: : SetValue ( n -- <name> )
1.54 pazsan 66: \G Same behaviour as "Value" if the <name> is not defined
67: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 68: \G SetValue searches in the current vocabulary
69: save-input bl word >r restore-input throw r> count
70: get-current search-wordlist
71: IF bl word drop >body ! ELSE Value THEN ;
72:
73: : DefaultValue ( n -- <name> )
1.54 pazsan 74: \G Same behaviour as "Value" if the <name> is not defined
75: \G DefaultValue searches in the current vocabulary
1.52 jwilke 76: save-input bl word >r restore-input throw r> count
77: get-current search-wordlist
78: IF bl word drop drop drop ELSE Value THEN ;
1.1 anton 79:
80: hex
81:
82: Vocabulary Cross
83: Vocabulary Target
84: Vocabulary Ghosts
85: VOCABULARY Minimal
86: only Forth also Target also also
87: definitions Forth
88:
89: : T previous Cross also Target ; immediate
90: : G Ghosts ; immediate
91: : H previous Forth also Cross ; immediate
92:
93: forth definitions
94:
95: : T previous Cross also Target ; immediate
96: : G Ghosts ; immediate
97:
98: : >cross also Cross definitions previous ;
99: : >target also Target definitions previous ;
100: : >minimal also Minimal definitions previous ;
101:
102: H
103:
104: >CROSS
105:
1.52 jwilke 106: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
107: \ for cross-compiling
108: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
109:
110: : comment? ( c-addr u -- c-addr u )
111: 2dup s" (" compare 0=
112: IF postpone (
113: ELSE 2dup s" \" compare 0= IF postpone \ THEN
114: THEN ;
115:
116: \ Begin CROSS COMPILER:
117:
118:
119:
120: \ \ -------------------- Error Handling 05aug97jaw
121:
122: \ Flags
123:
124: also forth definitions \ these values may be predefined before
125: \ the cross-compiler is loaded
126:
127: false DefaultValue stack-warn \ check on empty stack at any definition
128: false DefaultValue create-forward-warn \ warn on forward declaration of created words
129:
130: [IFUNDEF] DebugMaskSrouce Variable DebugMaskSource 0 DebugMaskSource ! [THEN]
131: [IFUNDEF] DebugMaskCross Variable DebugMaskCross 0 DebugMaskCross ! [THEN]
132:
133: previous >CROSS
134:
1.53 jwilke 135: : .dec
136: base @ decimal swap . base ! ;
137:
1.52 jwilke 138: : .sourcepos
139: cr sourcefilename type ." :"
1.53 jwilke 140: sourceline# .dec ;
1.52 jwilke 141:
142: : warnhead
143: \G display error-message head
144: \G perhaps with linenumber and filename
145: .sourcepos ." Warning: " ;
146:
147: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
148:
149: stack-warn [IF]
150: : defempty? empty? ;
151: [ELSE]
152: : defempty? ; immediate
153: [THEN]
154:
155:
1.54 pazsan 156:
1.52 jwilke 157: \ \ GhostNames Ghosts 9may93jaw
158:
159: \ second name source to search trough list
160:
161: VARIABLE GhostNames
162: 0 GhostNames !
163:
164: : GhostName ( -- addr )
165: here GhostNames @ , GhostNames ! here 0 ,
166: bl word count
167: \ 2dup type space
168: string, \ !! cfalign ?
169: align ;
170:
171: \ Ghost Builder 06oct92py
172:
173: \ <T T> new version with temp variable 10may93jaw
174:
175: VARIABLE VocTemp
176:
177: : <T get-current VocTemp ! also Ghosts definitions ;
178: : T> previous VocTemp @ set-current ;
179:
180: hex
181: 4711 Constant <fwd> 4712 Constant <res>
182: 4713 Constant <imm> 4714 Constant <do:>
183:
184: \ iForth makes only immediate directly after create
185: \ make atonce trick! ?
186:
187: Variable atonce atonce off
188:
189: : NoExec true ABORT" CROSS: Don't execute ghost" ;
190:
191: : GhostHeader <fwd> , 0 , ['] NoExec , ;
192:
193: : >magic ; \ type of ghost
194: : >link cell+ ; \ pointer where ghost is in target, or if unresolved
195: \ points to the where we have to resolve (linked-list)
196: : >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost
197: : >end 3 cells + ; \ room for additional tags
198: \ for builder (create, variable...) words the
199: \ execution symantics of words built are placed here
200:
201: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
202: Variable last-ghost \ last ghost that is created
203: Variable last-header-ghost \ last ghost definitions with header
204:
205: : Make-Ghost ( "name" -- ghost )
206: >in @ GhostName swap >in !
207: <T Create atonce @ IF immediate atonce off THEN
208: here tuck swap ! ghostheader T>
209: dup last-ghost !
210: DOES> dup executed-ghost ! >exec @ execute ;
211:
212: \ ghost words 14oct92py
213: \ changed: 10may93py/jaw
214:
215: : gfind ( string -- ghost true/1 / string false )
216: \ searches for string in word-list ghosts
217: dup count [ ' ghosts >wordlist ] ALiteral search-wordlist
218: dup IF >r >body nip r> THEN ;
219:
220: : gdiscover ( xt -- ghost true | xt false )
221: GhostNames
222: BEGIN @ dup
223: WHILE 2dup
224: cell+ @ dup >magic @ <fwd> <>
225: >r >link @ = r> and
226: IF cell+ @ nip true EXIT THEN
227: REPEAT
228: drop false ;
229:
230: VARIABLE Already
231:
232: : ghost ( "name" -- ghost )
233: Already off
234: >in @ bl word gfind IF Already on nip EXIT THEN
235: drop >in ! Make-Ghost ;
236:
237: : >ghostname ( ghost -- adr len )
238: GhostNames
239: BEGIN @ dup
240: WHILE 2dup cell+ @ =
241: UNTIL nip 2 cells + count
1.54 pazsan 242: ELSE 2drop
243: \ true abort" CROSS: Ghostnames inconsistent"
244: s" ?!?!?!"
1.52 jwilke 245: THEN ;
246:
247: ' >ghostname ALIAS @name
248:
249: : forward? ( ghost -- flag )
250: >magic @ <fwd> = ;
251:
252: \ Predefined ghosts 12dec92py
253:
254: ghost 0= drop
255: ghost branch ghost ?branch 2drop
256: ghost (do) ghost (?do) 2drop
257: ghost (for) drop
258: ghost (loop) ghost (+loop) 2drop
259: ghost (next) drop
260: ghost unloop ghost ;S 2drop
261: ghost lit ghost (compile) ghost ! 2drop drop
262: ghost (does>) ghost noop 2drop
263: ghost (.") ghost (S") ghost (ABORT") 2drop drop
264: ghost ' drop
265: ghost :docol ghost :doesjump ghost :dodoes 2drop drop
1.54 pazsan 266: ghost :dovar drop
1.52 jwilke 267: ghost over ghost = ghost drop 2drop drop
268: ghost - drop
1.54 pazsan 269: ghost 2drop drop
270: ghost 2dup drop
1.52 jwilke 271:
272: \ \ Parameter for target systems 06oct92py
273:
274: \ we define it ans like...
275: wordlist Constant target-environment
276:
277: VARIABLE env-current \ save information of current dictionary to restore with environ>
278:
279: : >ENVIRON get-current env-current ! target-environment set-current ;
280: : ENVIRON> env-current @ set-current ;
1.43 pazsan 281:
1.48 anton 282: >TARGET
1.43 pazsan 283:
1.52 jwilke 284: : environment?
285: target-environment search-wordlist
286: IF execute true ELSE false THEN ;
287:
288: : e? name T environment? H 0= ABORT" environment variable not defined!" ;
289:
1.53 jwilke 290: : has? name T environment? H
291: IF \ environment variable is present, return its value
292: ELSE \ environment variable is not present, return false
293: \ !! JAW abort is just for testing
294: false true ABORT" arg"
295: THEN ;
1.52 jwilke 296:
297: : $has? T environment? H IF ELSE false THEN ;
1.48 anton 298:
1.54 pazsan 299: >ENVIRON get-order get-current swap 1+ set-order
300: true SetValue compiler
1.53 jwilke 301: true SetValue cross
1.54 pazsan 302: true SetValue standard-threading
303: >TARGET previous
1.52 jwilke 304:
305: mach-file count included hex
1.43 pazsan 306:
1.53 jwilke 307: >ENVIRON
308:
1.54 pazsan 309: T has? ec H
310: [IF]
311: false DefaultValue relocate
312: false DefaultValue file
313: false DefaultValue OS
314: false DefaultValue prims
315: false DefaultValue floating
316: false DefaultValue glocals
317: false DefaultValue dcomps
318: false DefaultValue hash
319: false DefaultValue xconds
320: false DefaultValue header
321: [THEN]
322:
323: true DefaultValue interpreter
324: true DefaultValue ITC
325: false DefaultValue rom
1.53 jwilke 326:
1.52 jwilke 327: >TARGET
1.53 jwilke 328: s" relocate" T environment? H
329: [IF] SetValue NIL
330: [ELSE] >ENVIRON T NIL H SetValue relocate
331: [THEN]
1.43 pazsan 332:
333: >CROSS
334:
1.52 jwilke 335: \ \ Create additional parameters 19jan95py
1.19 pazsan 336:
337: T
1.48 anton 338: NIL Constant TNIL
1.19 pazsan 339: cell Constant tcell
340: cell<< Constant tcell<<
341: cell>bit Constant tcell>bit
342: bits/byte Constant tbits/byte
343: float Constant tfloat
344: 1 bits/byte lshift Constant maxbyte
345: H
346:
1.48 anton 347: \ Variables 06oct92py
348:
349: Variable image
350: Variable tlast TNIL tlast ! \ Last name field
351: Variable tlastcfa \ Last code field
352: Variable tdoes \ Resolve does> calls
353: Variable bit$
1.52 jwilke 354:
355: \ statistics 10jun97jaw
356:
357: Variable headers-named 0 headers-named !
358: Variable user-vars 0 user-vars !
359:
360: \ Memory initialisation 05dec92py
361:
362: [IFDEF] Memory \ Memory is a bigFORTH feature
363: also Memory
364: : initmem ( var len -- )
365: 2dup swap handle! >r @ r> erase ;
366: toss
367: [ELSE]
368: : initmem ( var len -- )
369: tuck allocate abort" CROSS: No memory for target"
370: ( len var adr ) dup rot !
371: ( len adr ) swap erase ;
372: [THEN]
373:
374: \ MakeKernal 12dec92py
375:
376: : makekernel ( targetsize -- targetsize )
377: bit$ over 1- tcell>bit rshift 1+ initmem
378: image over initmem ;
379:
380: >MINIMAL
381: : makekernel makekernel ;
382:
383:
384: >CROSS
385:
1.54 pazsan 386: \ \ memregion.fs
1.52 jwilke 387:
388:
389: Variable last-defined-region \ pointer to last defined region
390: Variable region-link \ linked list with all regions
391: Variable mirrored-link \ linked list for mirrored regions
392: 0 dup mirrored-link ! region-link !
393:
394:
395: : >rdp 2 cells + ;
396: : >rlen cell+ ;
397: : >rstart ;
398:
399:
400: : region ( addr len -- ) \G create a new region
401: \ check whether predefined region exists
402: save-input bl word find >r >r restore-input throw r> r> 0=
403: IF \ make region
404: drop
405: save-input create restore-input throw
406: here last-defined-region !
407: over ( startaddr ) , ( length ) , ( dp ) ,
408: region-link linked name string,
409: ELSE \ store new parameters in region
410: bl word drop
411: >body >r r@ last-defined-region !
412: r@ cell+ ! dup r@ ! r> 2 cells + !
413: THEN ;
414:
415: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
416: dup @ swap cell+ @ over + ;
417:
418: : extent ( region -- startaddr len ) \G returns the really used area
419: dup @ swap 2 cells + @ over - ;
420:
421: : area ( region -- startaddr totallen ) \G returns the total area
422: dup @ swap cell+ @ ;
423:
424: : mirrored \G mark a region as mirrored
425: mirrored-link
426: linked last-defined-region @ , ;
427:
428: : .addr
429: base @ >r hex
430: tcell 2 u>
431: IF s>d <# # # # # '. hold # # # # #> type
432: ELSE s>d <# # # # # # #> type
433: THEN r> base ! ;
434:
435: : .regions \G display region statistic
436:
437: \ we want to list the regions in the right order
438: \ so first collect all regions on stack
439: 0 region-link @
440: BEGIN dup WHILE dup @ REPEAT drop
441: BEGIN dup
442: WHILE cr 3 cells - >r
443: r@ 4 cells + count tuck type
444: 12 swap - 0 max spaces space
445: ." Start: " r@ @ dup .addr space
446: ." End: " r@ 1 cells + @ + .addr space
447: ." DP: " r> 2 cells + @ .addr
448: REPEAT drop
1.53 jwilke 449: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 450: cr ." Mirrored:"
451: mirrored-link @
452: BEGIN dup
453: WHILE space dup cell+ @ 4 cells + count type @
454: REPEAT drop cr
455: ;
456:
457: \ -------- predefined regions
458:
459: 0 0 region address-space
460: \ total memory addressed and used by the target system
461:
462: 0 0 region dictionary
463: \ rom area for the compiler
464:
1.53 jwilke 465: T has? rom H
1.52 jwilke 466: [IF]
467: 0 0 region ram-dictionary mirrored
468: \ ram area for the compiler
469: [ELSE]
470: ' dictionary ALIAS ram-dictionary
471: [THEN]
472:
473: 0 0 region return-stack
474:
475: 0 0 region data-stack
476:
477: 0 0 region tib-region
478:
479: ' dictionary ALIAS rom-dictionary
480:
481:
482: : setup-target ( -- ) \G initialize targets memory space
1.53 jwilke 483: s" rom" T $has? H
1.52 jwilke 484: IF \ check for ram and rom...
485: address-space area nip
486: ram-dictionary area nip
487: rom-dictionary area nip
488: and and 0=
489: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
490: THEN
491: address-space area nip
492: IF
493: address-space area
494: ELSE
495: dictionary area
496: THEN
497: dup 0=
498: ABORT" CROSS: define at least address-space or dictionary!!"
499: + makekernel drop ;
500:
1.54 pazsan 501: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 502:
503: \ second value is here to store some maximal value for statistics
504: \ tempdp is also embedded here but has nothing to do with rom support
505: \ (needs switched dp)
506:
507: variable tempdp 0 , \ temporary dp for resolving
508: variable tempdp-save
509:
510: 0 [IF]
511: variable romdp 0 , \ Dictionary-Pointer for ramarea
512: variable ramdp 0 , \ Dictionary-Pointer for romarea
513:
514: \
515: variable sramdp \ start of ram-area for forth
516: variable sromdp \ start of rom-area for forth
517:
518: [THEN]
519:
520:
521: 0 value tdp
522: variable fixed \ flag: true: no automatic switching
523: \ false: switching is done automatically
524:
525: \ Switch-Policy:
526: \
527: \ a header is always compiled into rom
528: \ after a created word (create and variable) compilation goes to ram
529: \
530: \ Be careful: If you want to make the data behind create into rom
531: \ you have to put >rom before create!
532:
533: variable constflag constflag off
534:
535: : (switchram)
1.53 jwilke 536: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.52 jwilke 537: ram-dictionary >rdp to tdp ;
538:
539: : switchram
540: constflag @
541: IF constflag off ELSE (switchram) THEN ;
542:
543: : switchrom
544: fixed @ ?EXIT rom-dictionary >rdp to tdp ;
545:
546: : >tempdp ( addr -- )
547: tdp tempdp-save ! tempdp to tdp tdp ! ;
548: : tempdp> ( -- )
549: tempdp-save @ to tdp ;
550:
551: : >ram fixed off (switchram) fixed on ;
552: : >rom fixed off switchrom fixed on ;
553: : >auto fixed off switchrom ;
554:
555:
556:
557: \ : romstart dup sromdp ! romdp ! ;
558: \ : ramstart dup sramdp ! ramdp ! ;
559:
560: \ default compilation goed to rom
561: \ when romable support is off, only the rom switch is used (!!)
562: >auto
563:
1.48 anton 564: : there tdp @ ;
565:
1.52 jwilke 566: >TARGET
1.48 anton 567:
1.52 jwilke 568: \ \ Target Memory Handling
1.1 anton 569:
570: \ Byte ordering and cell size 06oct92py
571:
1.19 pazsan 572: : cell+ tcell + ;
573: : cells tcell<< lshift ;
1.1 anton 574: : chars ;
1.48 anton 575: : char+ 1 + ;
1.19 pazsan 576: : floats tfloat * ;
1.6 anton 577:
1.1 anton 578: >CROSS
1.19 pazsan 579: : cell/ tcell<< rshift ;
1.1 anton 580: >TARGET
581: 20 CONSTANT bl
1.52 jwilke 582: \ TNIL Constant NIL
1.1 anton 583:
584: >CROSS
585:
1.20 pazsan 586: bigendian
587: [IF]
1.52 jwilke 588: : S! ( n addr -- ) >r s>d r> tcell bounds swap 1-
1.20 pazsan 589: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.52 jwilke 590: : S@ ( addr -- n ) >r 0 0 r> tcell bounds
1.20 pazsan 591: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 592: [ELSE]
1.52 jwilke 593: : S! ( n addr -- ) >r s>d r> tcell bounds
1.20 pazsan 594: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.52 jwilke 595: : S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1.20 pazsan 596: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 597: [THEN]
598:
599: >CROSS
600: \ Bit string manipulation 06oct92py
601: \ 9may93jaw
602: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
603: : bits ( n -- n ) chars Bittable + c@ ;
604:
605: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
606: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 607: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.1 anton 608: : relon ( taddr -- ) bit$ @ swap cell/ +bit ;
1.4 pazsan 609: : reloff ( taddr -- ) bit$ @ swap cell/ -bit ;
1.1 anton 610:
611: \ Target memory access 06oct92py
612:
613: : align+ ( taddr -- rest )
1.48 anton 614: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 615: : cfalign+ ( taddr -- rest )
1.39 pazsan 616: \ see kernel.fs:cfaligned
1.43 pazsan 617: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 618:
619: >TARGET
620: : aligned ( taddr -- ta-addr ) dup align+ + ;
621: \ assumes cell alignment granularity (as GNU C)
622:
1.22 anton 623: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 624: \ see kernel.fs
1.22 anton 625: dup cfalign+ + ;
626:
1.1 anton 627: >CROSS
628: : >image ( taddr -- absaddr ) image @ + ;
629: >TARGET
1.52 jwilke 630: : @ ( taddr -- w ) >image S@ ;
631: : ! ( w taddr -- ) >image S! ;
1.1 anton 632: : c@ ( taddr -- char ) >image c@ ;
633: : c! ( char taddr -- ) >image c! ;
1.7 anton 634: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
635: : 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
1.1 anton 636:
637: \ Target compilation primitives 06oct92py
638: \ included A! 16may93jaw
639:
640: : here ( -- there ) there ;
641: : allot ( n -- ) tdp +! ;
1.52 jwilke 642: : , ( w -- ) T here H tcell T allot ! H T here drop H ;
1.1 anton 643: : c, ( char -- ) T here 1 allot c! H ;
644: : align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ;
1.22 anton 645: : cfalign ( -- )
646: T here H cfalign+ 0 ?DO bl T c, H LOOP ;
1.1 anton 647:
648: : A! dup relon T ! H ;
649: : A, ( w -- ) T here H relon T , H ;
650:
651: >CROSS
652:
1.52 jwilke 653: : tcmove ( source dest len -- )
654: \G cmove in target memory
655: bounds
656: ?DO dup T c@ H I T c! H 1+
657: LOOP drop ;
1.1 anton 658:
659: >TARGET
1.52 jwilke 660: H also Forth definitions \ ." asm: " order
1.1 anton 661:
1.52 jwilke 662: : X also target bl word find
663: IF state @ IF compile,
664: ELSE execute THEN
665: ELSE previous ABORT" Cross: access method not supported!"
666: THEN
667: previous ; immediate
1.1 anton 668:
1.52 jwilke 669: [IFDEF] asm-include asm-include [THEN] hex
1.1 anton 670:
1.52 jwilke 671: previous
672: >CROSS H
1.1 anton 673:
1.52 jwilke 674: \ \ -------------------- Compiler Plug Ins 01aug97jaw
1.1 anton 675:
1.54 pazsan 676: \ Compiler States
677:
678: Variable comp-state
679: 0 Constant interpreting
680: 1 Constant compiling
681: 2 Constant resolving
682: 3 Constant assembling
683:
1.52 jwilke 684: Defer lit, ( n -- )
685: Defer alit, ( n -- )
1.54 pazsan 686:
687: Defer branch, ( target-addr -- ) \ compiles a branch
688: Defer ?branch, ( target-addr -- ) \ compiles a ?branch
689: Defer branchmark, ( -- branch-addr ) \ reserves room for a branch
690: Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
691: Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
692: Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
693: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
694: Defer branchfrom, ( -- ) \ ?!
695: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
696:
1.52 jwilke 697: Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position
1.54 pazsan 698: Defer colonmark, ( -- addr ) \ marks a colon call
1.52 jwilke 699: Defer colon-resolve ( tcfa addr -- )
1.54 pazsan 700:
1.52 jwilke 701: Defer addr-resolve ( target-addr addr -- )
1.54 pazsan 702: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
703:
704: Defer do, ( -- do-token )
705: Defer ?do, ( -- ?do-token )
706: Defer for, ( -- for-token )
707: Defer loop, ( do-token / ?do-token -- )
708: Defer +loop, ( do-token / ?do-token -- )
709: Defer next, ( for-token )
1.1 anton 710:
1.52 jwilke 711: [IFUNDEF] ca>native
712: defer ca>native
713: [THEN]
1.1 anton 714:
1.52 jwilke 715: >TARGET
716: DEFER >body \ we need the system >body
717: \ and the target >body
718: >CROSS
719: T 2 cells H VALUE xt>body
1.54 pazsan 720: DEFER doprim, \ compiles start of a primitive
721: DEFER docol, \ compiles start of a colon definition
1.52 jwilke 722: DEFER doer,
723: DEFER fini, \ compiles end of definition ;s
724: DEFER doeshandler,
725: DEFER dodoes,
726:
727: DEFER ]comp \ starts compilation
728: DEFER comp[ \ ends compilation
729:
1.54 pazsan 730: : (cc) T a, H ; ' (cc) IS colon,
731:
732: : (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) IS colon-resolve
733: : (ar) T ! H ; ' (ar) IS addr-resolve
734: : (dr) ( ghost res-pnt target-addr addr )
735: >tempdp drop over
736: dup >magic @ <do:> =
737: IF doer,
738: ELSE dodoes,
739: THEN
740: tempdp> ; ' (dr) IS doer-resolve
741:
742: : (cm) ( -- addr )
743: T here align H
744: -1 colon, ; ' (cm) IS colonmark,
1.1 anton 745:
1.52 jwilke 746: >TARGET
747: : compile, colon, ;
748: >CROSS
1.1 anton 749:
1.53 jwilke 750: \ file loading
751:
1.54 pazsan 752: : >fl-id 1 cells + ;
753: : >fl-name 2 cells + ;
754:
1.53 jwilke 755: Variable filelist 0 filelist !
1.54 pazsan 756: 0 Value filemem
757: : loadfile filemem >fl-name ;
1.53 jwilke 758:
1.54 pazsan 759: 1 [IF] \ !! JAW WIP
1.1 anton 760:
1.53 jwilke 761: : add-included-file ( adr len -- )
1.54 pazsan 762: dup char+ >fl-name allocate throw >r
763: r@ >fl-name place
1.53 jwilke 764: filelist @ r@ !
1.54 pazsan 765: r> dup filelist ! to FileMem
766: ;
1.53 jwilke 767:
768: : included? ( c-addr u -- f )
769: filelist
770: BEGIN @ dup
771: WHILE >r r@ 1 cells + count compare 0=
772: IF rdrop 2drop true EXIT THEN
773: r>
774: REPEAT
775: 2drop drop false ;
776:
777: : included
1.54 pazsan 778: \ cr ." Including: " 2dup type ." ..."
779: FileMem >r
780: 2dup add-included-file included
781: r> to FileMem ;
1.53 jwilke 782:
783: : include bl word count included ;
784:
785: : require bl word count included ;
786:
787: [THEN]
1.1 anton 788:
1.52 jwilke 789: \ resolve structure
1.1 anton 790:
1.52 jwilke 791: : >next ; \ link to next field
1.54 pazsan 792: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1.53 jwilke 793: : >taddr cell+ cell+ ;
1.52 jwilke 794: : >ghost 3 cells + ;
1.53 jwilke 795: : >file 4 cells + ;
796: : >line 5 cells + ;
1.48 anton 797:
1.54 pazsan 798: : (refered) ( ghost addr tag -- )
799: \G creates a reference to ghost at address taddr
800: rot >r here r@ >link @ , r> >link !
801: ( taddr tag ) ,
802: ( taddr ) ,
803: last-header-ghost @ ,
804: loadfile ,
805: sourceline# ,
806: ;
807:
1.52 jwilke 808: : refered ( ghost tag -- )
1.53 jwilke 809: \G creates a resolve structure
1.54 pazsan 810: T here aligned H swap (refered)
811: ;
812:
813: : killref ( addr ghost -- )
814: \G kills a forward reference to ghost at position addr
815: \G this is used to eleminate a :dovar refence after making a DOES>
816: dup >magic @ <fwd> <> IF 2drop EXIT THEN
817: swap >r >link
818: BEGIN dup @ dup ( addr last this )
819: WHILE dup >taddr @ r@ =
820: IF @ over !
821: ELSE nip THEN
822: REPEAT rdrop 2drop
1.53 jwilke 823: ;
1.48 anton 824:
1.52 jwilke 825: Defer resolve-warning
1.1 anton 826:
1.52 jwilke 827: : reswarn-test ( ghost res-struct -- ghost res-struct )
828: over cr ." Resolving " >ghostname type dup ." in " >ghost @ >ghostname type ;
1.1 anton 829:
1.52 jwilke 830: : reswarn-forward ( ghost res-struct -- ghost res-struct )
831: over warnhead >ghostname type dup ." is referenced in "
832: >ghost @ >ghostname type ;
1.1 anton 833:
1.52 jwilke 834: \ ' reswarn-test IS resolve-warning
835:
1.1 anton 836: \ resolve 14oct92py
837:
1.54 pazsan 838: : resolve-loop ( ghost resolve-list tcfa -- )
839: >r
840: BEGIN dup WHILE
841: \ dup >tag @ 2 = IF reswarn-forward THEN
842: resolve-warning
843: r@ over >taddr @
844: 2 pick >tag @
845: CASE 0 OF colon-resolve ENDOF
846: 1 OF addr-resolve ENDOF
847: 2 OF doer-resolve ENDOF
848: ENDCASE
849: @ \ next list element
850: REPEAT 2drop rdrop
851: ;
1.52 jwilke 852:
853: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
854: \ >r dup >link @
855: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 856:
857: \ exists 9may93jaw
858:
1.52 jwilke 859: Variable TWarnings
860: TWarnings on
861: Variable Exists-Warnings
862: Exists-Warnings on
863:
1.1 anton 864: : exists ( ghost tcfa -- )
865: over GhostNames
866: BEGIN @ dup
867: WHILE 2dup cell+ @ =
868: UNTIL
1.52 jwilke 869: 2 cells + count
870: TWarnings @ Exists-Warnings @ and
871: IF warnhead type ." exists"
872: ELSE 2drop THEN
873: drop swap >link !
1.24 pazsan 874: ELSE true abort" CROSS: Ghostnames inconsistent "
1.1 anton 875: THEN ;
876:
877: : resolve ( ghost tcfa -- )
1.54 pazsan 878: \G resolve referencies to ghost with tcfa
879: \ is ghost resolved?, second resolve means another definition with the
880: \ same name
881: over forward? 0= IF exists EXIT THEN
882: \ get linked-list
883: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
884: \ mark ghost as resolved
885: dup r@ >link ! <res> r@ >magic !
886: \ loop through forward referencies
887: r> -rot
888: comp-state @ >r Resolving comp-state !
889: resolve-loop
890: r> comp-state !
891:
892: ['] noop IS resolve-warning
1.52 jwilke 893: ;
1.1 anton 894:
895: \ gexecute ghost, 01nov92py
896:
1.52 jwilke 897: : is-forward ( ghost -- )
1.54 pazsan 898: colonmark, 0 (refered) ; \ compile space for call
1.52 jwilke 899:
900: : is-resolved ( ghost -- )
901: >link @ colon, ; \ compile-call
902:
903: : gexecute ( ghost -- )
904: dup @ <fwd> = IF is-forward ELSE is-resolved THEN ;
905:
906: : addr, ( ghost -- )
907: dup @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
908:
909: \ !! : ghost, ghost gexecute ;
1.1 anton 910:
911: \ .unresolved 11may93jaw
912:
913: variable ResolveFlag
914:
915: \ ?touched 11may93jaw
916:
1.52 jwilke 917: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 918: 0 <> and ;
919:
1.53 jwilke 920: : .forwarddefs ( ghost -- )
921: ." appeared in:"
922: >link
923: BEGIN @ dup
924: WHILE cr 5 spaces
925: dup >ghost @ >ghostname type
926: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
927: ." line " dup >line @ .dec
928: REPEAT
929: drop ;
930:
1.1 anton 931: : ?resolved ( ghostname -- )
932: dup cell+ @ ?touched
1.53 jwilke 933: IF dup
934: cell+ cell+ count cr type ResolveFlag on
935: cell+ @ .forwarddefs
936: ELSE drop
937: THEN ;
1.1 anton 938:
939: >MINIMAL
940: : .unresolved ( -- )
941: ResolveFlag off cr ." Unresolved: "
942: Ghostnames
943: BEGIN @ dup
944: WHILE dup ?resolved
1.10 anton 945: REPEAT drop ResolveFlag @
946: IF
1.48 anton 947: -1 abort" Unresolved words!"
1.10 anton 948: ELSE
949: ." Nothing!"
950: THEN
951: cr ;
1.1 anton 952:
1.52 jwilke 953: : .stats
954: base @ >r decimal
955: cr ." named Headers: " headers-named @ .
956: r> base ! ;
957:
1.1 anton 958: >CROSS
959: \ Header states 12dec92py
960:
961: : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
962:
963: VARIABLE ^imm
964:
965: >TARGET
1.36 anton 966: : immediate 40 flag!
1.18 pazsan 967: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 968: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
969: <imm> ^imm @ ! ;
1.36 anton 970: : restrict 20 flag! ;
1.52 jwilke 971:
1.54 pazsan 972: : isdoer
973: \G define a forth word as doer, this makes obviously only sence on
974: \G forth processors such as the PSC1000
975: <do:> last-header-ghost @ >magic ! ;
1.1 anton 976: >CROSS
977:
978: \ ALIAS2 ansforth conform alias 9may93jaw
979:
980: : ALIAS2 create here 0 , DOES> @ execute ;
981: \ usage:
1.18 pazsan 982: \ ' <name> alias2 bla !
1.1 anton 983:
984: \ Target Header Creation 01nov92py
985:
1.52 jwilke 986: >TARGET
1.1 anton 987: : string, ( addr count -- )
1.28 pazsan 988: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1.52 jwilke 989: : name, ( "name" -- ) bl word count T string, cfalign H ;
1.1 anton 990: : view, ( -- ) ( dummy ) ;
1.52 jwilke 991: >CROSS
1.1 anton 992:
1.25 pazsan 993: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
994:
1.55 ! pazsan 995: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 996: \ contains the file-id of the documentation file
997:
1.40 pazsan 998: : T-\G ( -- )
1.25 pazsan 999: source >in @ /string doc-file-id write-line throw
1.40 pazsan 1000: postpone \ ;
1.25 pazsan 1001:
1.39 pazsan 1002: Variable to-doc to-doc on
1.25 pazsan 1003:
1004: : cross-doc-entry ( -- )
1005: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1006: IF
1007: s" " doc-file-id write-line throw
1008: s" make-doc " doc-file-id write-file throw
1009: tlast @ >image count $1F and doc-file-id write-file throw
1010: >in @
1011: [char] ( parse 2drop
1012: [char] ) parse doc-file-id write-file throw
1013: s" )" doc-file-id write-file throw
1014: [char] \ parse 2drop
1.40 pazsan 1015: T-\G
1.25 pazsan 1016: >in !
1.39 pazsan 1017: THEN ;
1.25 pazsan 1018:
1.28 pazsan 1019: \ Target TAGS creation
1020:
1.39 pazsan 1021: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28 pazsan 1022: \ contains the file-id of the tags file
1023:
1024: Create tag-beg 2 c, 7F c, bl c,
1025: Create tag-end 2 c, bl c, 01 c,
1026: Create tag-bof 1 c, 0C c,
1027:
1028: 2variable last-loadfilename 0 0 last-loadfilename 2!
1029:
1030: : put-load-file-name ( -- )
1031: loadfilename 2@ last-loadfilename 2@ d<>
1032: IF
1033: tag-bof count tag-file-id write-line throw
1.31 anton 1034: sourcefilename 2dup
1.28 pazsan 1035: tag-file-id write-file throw
1036: last-loadfilename 2!
1037: s" ,0" tag-file-id write-line throw
1038: THEN ;
1039:
1040: : cross-tag-entry ( -- )
1041: tlast @ 0<> \ not an anonymous (i.e. noname) header
1042: IF
1043: put-load-file-name
1044: source >in @ min tag-file-id write-file throw
1045: tag-beg count tag-file-id write-file throw
1046: tlast @ >image count $1F and tag-file-id write-file throw
1047: tag-end count tag-file-id write-file throw
1.31 anton 1048: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 1049: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1050: s" ,0" tag-file-id write-line throw
1051: base !
1052: THEN ;
1053:
1.43 pazsan 1054: \ Check for words
1055:
1056: Defer skip? ' false IS skip?
1057:
1058: : defined? ( -- flag ) \ name
1.52 jwilke 1059: ghost forward? 0= ;
1.43 pazsan 1060:
1061: : needed? ( -- flag ) \ name
1.48 anton 1062: \G returns a false flag when
1063: \G a word is not defined
1064: \G a forward reference exists
1065: \G so the definition is not skipped!
1066: bl word gfind
1.52 jwilke 1067: IF dup forward?
1.48 anton 1068: nip
1069: 0=
1070: ELSE drop true THEN ;
1.43 pazsan 1071:
1.44 pazsan 1072: : doer? ( -- flag ) \ name
1073: ghost >magic @ <do:> = ;
1074:
1.43 pazsan 1075: : skip-defs ( -- )
1076: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
1077:
1.28 pazsan 1078: \ Target header creation
1079:
1.54 pazsan 1080: Variable CreateFlag
1081: CreateFlag off
1.52 jwilke 1082:
1.54 pazsan 1083: Variable NoHeaderFlag
1084: NoHeaderFlag off
1.1 anton 1085:
1.54 pazsan 1086: : 0.r ( n1 n2 -- )
1087: base @ >r hex
1088: 0 swap <# 0 ?DO # LOOP #> type
1089: r> base ! ;
1.52 jwilke 1090: : .sym
1091: bounds
1092: DO I c@ dup
1093: CASE '/ OF drop ." \/" ENDOF
1094: '\ OF drop ." \\" ENDOF
1095: dup OF emit ENDOF
1096: ENDCASE
1.54 pazsan 1097: LOOP ;
1.52 jwilke 1098:
1.43 pazsan 1099: : (Theader ( "name" -- ghost )
1.54 pazsan 1100: \ >in @ bl word count type 2 spaces >in !
1101: \ wordheaders will always be compiled to rom
1102: switchrom
1103: \ build header in target
1104: NoHeaderFlag @
1105: IF NoHeaderFlag off
1106: ELSE
1107: T align H view,
1108: tlast @ dup 0> IF T 1 cells - THEN A, H there tlast !
1109: 1 headers-named +! \ Statistic
1110: >in @ T name, H >in !
1111: THEN
1112: T cfalign here H tlastcfa !
1113: \ Symbol table
1114: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1115: CreateFlag @
1116: IF
1117: >in @ alias2 swap >in ! \ create alias in target
1118: >in @ ghost swap >in !
1119: swap also ghosts ' previous swap ! \ tick ghost and store in alias
1120: CreateFlag off
1121: ELSE ghost
1122: THEN
1123: dup Last-Header-Ghost !
1124: dup >magic ^imm ! \ a pointer for immediate
1125: Already @
1126: IF dup >end tdoes !
1127: ELSE 0 tdoes !
1128: THEN
1129: 80 flag!
1130: cross-doc-entry cross-tag-entry ;
1.1 anton 1131:
1132: VARIABLE ;Resolve 1 cells allot
1.52 jwilke 1133: \ this is the resolver information from ":"
1134: \ resolving is done by ";"
1.1 anton 1135:
1.11 pazsan 1136: : Theader ( "name" -- ghost )
1137: (THeader dup there resolve 0 ;Resolve ! ;
1.1 anton 1138:
1139: >TARGET
1140: : Alias ( cfa -- ) \ name
1.43 pazsan 1141: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1142: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1143: IF
1.53 jwilke 1144: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43 pazsan 1145: THEN
1146: (THeader over resolve T A, H 80 flag! ;
1.42 pazsan 1147: : Alias: ( cfa -- ) \ name
1.43 pazsan 1148: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1149: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1150: IF
1.53 jwilke 1151: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43 pazsan 1152: THEN
1153: ghost tuck swap resolve <do:> swap >magic ! ;
1.1 anton 1154: >CROSS
1155:
1156: \ Conditionals and Comments 11may93jaw
1157:
1158: : ;Cond
1159: postpone ;
1160: swap ! ; immediate
1161:
1162: : Cond: ( -- ) \ name {code } ;
1163: atonce on
1164: ghost
1165: >exec
1166: :NONAME ;
1167:
1168: : restrict? ( -- )
1169: \ aborts on interprete state - ae
1170: state @ 0= ABORT" CROSS: Restricted" ;
1171:
1172: : Comment ( -- )
1173: >in @ atonce on ghost swap >in ! ' swap >exec ! ;
1174:
1175: Comment ( Comment \
1176:
1177: \ compile 10may93jaw
1178:
1179: : compile ( -- ) \ name
1180: restrict?
1.13 pazsan 1181: bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1 anton 1182: 0> ( immediate? )
1183: IF >exec @ compile,
1184: ELSE postpone literal postpone gexecute THEN ;
1185: immediate
1186:
1.52 jwilke 1187: : [G']
1188: \G ticks a ghost and returns its address
1189: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1190: state @
1191: IF postpone literal
1192: THEN ; immediate
1193:
1194: : ghost>cfa
1195: dup forward? ABORT" CROSS: forward " >link @ ;
1196:
1197: >TARGET
1198:
1199: : ' ( -- cfa )
1200: \ returns the target-cfa of a ghost
1201: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1202: ghost>cfa ;
1203:
1204: Cond: ['] T ' H alit, ;Cond
1205:
1206: >CROSS
1207:
1208: : [T']
1209: \ returns the target-cfa of a ghost, or compiles it as literal
1210: postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42 pazsan 1211:
1.52 jwilke 1212: \ \ threading modell 13dec92py
1213: \ modularized 14jun97jaw
1214:
1215: : fillcfa ( usedcells -- )
1216: T cells H xt>body swap - 0 ?DO 0 T c, H LOOP ;
1217:
1218: : (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H
1219:
1220: : (doer,) ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ; ' (doer,) IS doer,
1221:
1222: : (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol,
1223:
1224: : (doprim,) ( -- )
1225: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
1226:
1227: : (doeshandler,) ( -- )
1228: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler,
1229:
1230: : (dodoes,) ( does-action-ghost -- )
1231: ]comp [G'] :dodoes gexecute comp[
1232: addr,
1233: T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes,
1234:
1235: : (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS lit,
1236:
1237: : (alit,) ( n -- ) lit, T here cell - H relon ; ' (alit,) IS alit,
1238:
1239: : (fini,) compile ;s ; ' (fini,) IS fini,
1.42 pazsan 1240:
1.43 pazsan 1241: [IFUNDEF] (code)
1242: Defer (code)
1243: Defer (end-code)
1244: [THEN]
1245:
1.1 anton 1246: >TARGET
1.43 pazsan 1247: : Code
1.52 jwilke 1248: defempty?
1.48 anton 1249: (THeader there resolve
1.53 jwilke 1250: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 1251: doprim,
1.48 anton 1252: [THEN]
1253: depth (code) ;
1.43 pazsan 1254:
1255: : Code:
1.52 jwilke 1256: defempty?
1.48 anton 1257: ghost dup there ca>native resolve <do:> swap >magic !
1.43 pazsan 1258: depth (code) ;
1259:
1260: : end-code
1.52 jwilke 1261: (end-code)
1.43 pazsan 1262: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1263: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1264: ;
1.14 anton 1265:
1266: Cond: chars ;Cond
1.1 anton 1267:
1268: >CROSS
1.52 jwilke 1269:
1.1 anton 1270: \ tLiteral 12dec92py
1271:
1272: >TARGET
1.40 pazsan 1273: Cond: \G T-\G ;Cond
1274:
1.1 anton 1275: Cond: Literal ( n -- ) restrict? lit, ;Cond
1276: Cond: ALiteral ( n -- ) restrict? alit, ;Cond
1277:
1278: : Char ( "<char>" -- ) bl word char+ c@ ;
1279: Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond
1280:
1.43 pazsan 1281: \ some special literals 27jan97jaw
1282:
1.52 jwilke 1283: \ !! Known Bug: Special Literals and plug-ins work only correct
1284: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1285:
1.43 pazsan 1286: Cond: MAXU
1.52 jwilke 1287: restrict?
1288: tcell 1 cells u>
1289: IF compile lit tcell 0 ?DO FF T c, H LOOP
1290: ELSE $ffffffff lit, THEN
1291: ;Cond
1.43 pazsan 1292:
1293: Cond: MINI
1.52 jwilke 1294: restrict?
1295: tcell 1 cells u>
1296: IF compile lit bigendian
1297: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
1298: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
1299: THEN
1300: ELSE tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN
1301: ;Cond
1.43 pazsan 1302:
1303: Cond: MAXI
1.52 jwilke 1304: restrict?
1305: tcell 1 cells u>
1306: IF compile lit bigendian
1307: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
1308: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
1309: THEN
1310: ELSE tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN
1.43 pazsan 1311: ;Cond
1312:
1.1 anton 1313: >CROSS
1314: \ Target compiling loop 12dec92py
1315: \ ">tib trick thrown out 10may93jaw
1316: \ number? defined at the top 11may93jaw
1317:
1318: \ compiled word might leave items on stack!
1319: : tcom ( in name -- )
1320: gfind ?dup IF 0> IF nip >exec @ execute
1321: ELSE nip gexecute THEN EXIT THEN
1322: number? dup IF 0> IF swap lit, THEN lit, drop
1323: ELSE 2drop >in !
1324: ghost gexecute THEN ;
1325:
1326: >TARGET
1327: \ : ; DOES> 13dec92py
1328: \ ] 9may93py/jaw
1329:
1330: : ] state on
1.54 pazsan 1331: Compiling comp-state !
1.1 anton 1332: BEGIN
1.13 pazsan 1333: BEGIN >in @ bl word
1.1 anton 1334: dup c@ 0= WHILE 2drop refill 0=
1335: ABORT" CROSS: End of file while target compiling"
1336: REPEAT
1337: tcom
1338: state @
1339: 0=
1340: UNTIL ;
1341:
1342: \ by the way: defining a second interpreter (a compiler-)loop
1343: \ is not allowed if a system should be ans conform
1344:
1345: : : ( -- colon-sys ) \ Name
1.52 jwilke 1346: defempty?
1347: constflag off \ don't let this flag work over colon defs
1348: \ just to go sure nothing unwanted happens
1.43 pazsan 1349: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.1 anton 1350: (THeader ;Resolve ! there ;Resolve cell+ !
1.52 jwilke 1351: docol, ]comp depth T ] H ;
1.1 anton 1352:
1.37 pazsan 1353: : :noname ( -- colon-sys )
1.52 jwilke 1354: T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37 pazsan 1355:
1.2 pazsan 1356: Cond: EXIT ( -- ) restrict? compile ;S ;Cond
1.6 anton 1357:
1358: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 1359:
1.52 jwilke 1360: >CROSS
1361: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
1362: ;Resolve cell+ @ ;
1363:
1364: >TARGET
1365:
1366: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
1367:
1.1 anton 1368: Cond: ; ( -- ) restrict?
1369: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1370: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1371: fini,
1372: comp[
1373: state off
1.1 anton 1374: ;Resolve @
1375: IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54 pazsan 1376: Interpreting comp-state !
1.1 anton 1377: ;Cond
1.54 pazsan 1378: Cond: [ restrict? state off Interpreting comp-state ! ;Cond
1.1 anton 1379:
1380: >CROSS
1.54 pazsan 1381:
1382: Create GhostDummy ghostheader
1383: <res> GhostDummy >magic !
1384:
1.52 jwilke 1385: : !does ( does-action -- )
1386: \ !! zusammenziehen und dodoes, machen!
1.54 pazsan 1387: tlastcfa @ [G'] :dovar killref
1388: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52 jwilke 1389: \ !! geht so nicht, da dodoes, ghost will!
1.54 pazsan 1390: GhostDummy >link ! GhostDummy
1391: tlastcfa @ >tempdp dodoes, tempdp> ;
1.1 anton 1392:
1393: >TARGET
1394: Cond: DOES> restrict?
1.52 jwilke 1395: compile (does>) doeshandler,
1396: \ resolve words made by builders
1397: tdoes @ ?dup IF @ T here H resolve THEN
1.1 anton 1398: ;Cond
1.52 jwilke 1399: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1 anton 1400:
1401: >CROSS
1402: \ Creation 01nov92py
1403:
1404: \ Builder 11may93jaw
1405:
1.52 jwilke 1406: : Builder ( Create-xt do:-xt "name" -- )
1407: \ builds up a builder in current vocabulary
1408: \ create-xt is executed when word is interpreted
1409: \ do:-xt is executet when the created word from builder is executed
1410: \ for do:-xt an additional entry after the normal ghost-enrys is used
1411:
1.1 anton 1412: >in @ alias2 swap dup >in ! >r >r
1.54 pazsan 1413: Make-Ghost
1414: rot swap >exec dup @ ['] NoExec <>
1415: IF 2drop ELSE ! THEN
1416: ,
1.1 anton 1417: r> r> >in !
1.11 pazsan 1418: also ghosts ' previous swap ! ;
1419: \ DOES> dup >exec @ execute ;
1.1 anton 1420:
1.52 jwilke 1421: : gdoes, ( ghost -- )
1422: \ makes the codefield for a word that is built
1423: >end @ dup forward? 0=
1424: IF
1.42 pazsan 1425: dup >magic @ <do:> =
1.54 pazsan 1426: IF doer,
1427: ELSE dodoes,
1428: THEN
1429: EXIT
1.52 jwilke 1430: THEN
1431: \ compile :dodoes gexecute
1432: \ T here H tcell - reloff
1.54 pazsan 1433: 2 refered
1434: 0 fillcfa
1435: ;
1.1 anton 1436:
1.52 jwilke 1437: : TCreate ( <name> -- )
1438: executed-ghost @
1.1 anton 1439: CreateFlag on
1.52 jwilke 1440: create-forward-warn
1441: IF ['] reswarn-forward IS resolve-warning THEN
1.11 pazsan 1442: Theader >r dup gdoes,
1.52 jwilke 1443: \ stores execution symantic in the built word
1444: >end @ >exec @ r> >exec ! ;
1445:
1446: : RTCreate ( <name> -- )
1447: \ creates a new word with code-field in ram
1448: executed-ghost @
1449: CreateFlag on
1450: create-forward-warn
1451: IF ['] reswarn-forward IS resolve-warning THEN
1452: \ make Alias
1453: (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
1454: \ store poiter to code-field
1455: switchram T cfalign H
1456: there swap T ! H
1457: there tlastcfa !
1458: dup there resolve 0 ;Resolve !
1459: >r dup gdoes,
1.11 pazsan 1460: >end @ >exec @ r> >exec ! ;
1.1 anton 1461:
1462: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 1463: :noname postpone TCreate ;
1464:
1465: : BuildSmart: ( -- [xt] [colon-sys] )
1466: :noname
1.53 jwilke 1467: [ T has? rom H [IF] ]
1.52 jwilke 1468: postpone RTCreate
1469: [ [ELSE] ]
1470: postpone TCreate
1471: [ [THEN] ] ;
1.1 anton 1472:
1473: : gdoes> ( ghost -- addr flag )
1.52 jwilke 1474: executed-ghost @
1.1 anton 1475: state @ IF gexecute true EXIT THEN
1.52 jwilke 1476: >link @ T >body H false ;
1.1 anton 1477:
1478: \ DO: ;DO 11may93jaw
1479: \ changed to ?EXIT 10may93jaw
1480:
1481: : DO: ( -- addr [xt] [colon-sys] )
1482: here ghostheader
1.11 pazsan 1483: :noname postpone gdoes> postpone ?EXIT ;
1.1 anton 1484:
1.42 pazsan 1485: : by: ( -- addr [xt] [colon-sys] ) \ name
1486: ghost
1487: :noname postpone gdoes> postpone ?EXIT ;
1488:
1.52 jwilke 1489: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1 anton 1490: postpone ; ( S addr xt )
1491: over >exec ! ; immediate
1492:
1493: : by ( -- addr ) \ Name
1494: ghost >end @ ;
1495:
1496: >TARGET
1497: \ Variables and Constants 05dec92py
1498:
1.52 jwilke 1499: Build: ( n -- ) ;
1500: by: :docon ( ghost -- n ) T @ H ;DO
1501: Builder (Constant)
1502:
1503: Build: ( n -- ) T , H ;
1504: by (Constant)
1505: Builder Constant
1506:
1507: Build: ( n -- ) T A, H ;
1508: by (Constant)
1509: Builder AConstant
1510:
1511: Build: ( d -- ) T , , H ;
1512: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
1513: Builder 2Constant
1514:
1515: BuildSmart: ;
1.42 pazsan 1516: by: :dovar ( ghost -- addr ) ;DO
1.1 anton 1517: Builder Create
1518:
1.53 jwilke 1519: T has? rom H [IF]
1.54 pazsan 1520: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 1521: by (Constant)
1522: Builder Variable
1523: [ELSE]
1.1 anton 1524: Build: T 0 , H ;
1525: by Create
1526: Builder Variable
1.52 jwilke 1527: [THEN]
1.1 anton 1528:
1.53 jwilke 1529: T has? rom H [IF]
1.54 pazsan 1530: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
1531: by (Constant)
1532: Builder 2Variable
1533: [ELSE]
1534: Build: T 0 , 0 , H ;
1535: by Create
1536: Builder 2Variable
1537: [THEN]
1538:
1539: T has? rom H [IF]
1540: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 1541: by (Constant)
1542: Builder AVariable
1543: [ELSE]
1.1 anton 1544: Build: T 0 A, H ;
1545: by Create
1546: Builder AVariable
1.52 jwilke 1547: [THEN]
1.1 anton 1548:
1.3 pazsan 1549: \ User variables 04may94py
1550:
1551: >CROSS
1552: Variable tup 0 tup !
1553: Variable tudp 0 tudp !
1554: : u, ( n -- udp )
1555: tup @ tudp @ + T ! H
1.19 pazsan 1556: tudp @ dup T cell+ H tudp ! ;
1.3 pazsan 1557: : au, ( n -- udp )
1558: tup @ tudp @ + T A! H
1.19 pazsan 1559: tudp @ dup T cell+ H tudp ! ;
1.3 pazsan 1560: >TARGET
1561:
1562: Build: T 0 u, , H ;
1.42 pazsan 1563: by: :douser ( ghost -- up-addr ) T @ H tup @ + ;DO
1.1 anton 1564: Builder User
1565:
1.3 pazsan 1566: Build: T 0 u, , 0 u, drop H ;
1567: by User
1.1 anton 1568: Builder 2User
1569:
1.3 pazsan 1570: Build: T 0 au, , H ;
1571: by User
1.1 anton 1572: Builder AUser
1573:
1.52 jwilke 1574: BuildSmart: T , H ;
1.44 pazsan 1575: by (Constant)
1.1 anton 1576: Builder Value
1577:
1.52 jwilke 1578: BuildSmart: T A, H ;
1.44 pazsan 1579: by (Constant)
1.32 pazsan 1580: Builder AValue
1581:
1.52 jwilke 1582: BuildSmart: ( -- ) [T'] noop T A, H ;
1.42 pazsan 1583: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1 anton 1584: Builder Defer
1.37 pazsan 1585:
1.52 jwilke 1586: BuildSmart: ( inter comp -- ) swap T immediate A, A, H ;
1.37 pazsan 1587: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38 anton 1588: Builder interpret/compile:
1.24 pazsan 1589:
1590: \ Sturctures 23feb95py
1591:
1592: >CROSS
1593: : nalign ( addr1 n -- addr2 )
1594: \ addr2 is the aligned version of addr1 wrt the alignment size n
1595: 1- tuck + swap invert and ;
1596: >TARGET
1597:
1.44 pazsan 1598: Build: ;
1599: by: :dofield T @ H + ;DO
1600: Builder (Field)
1601:
1.51 anton 1602: Build: ( align1 offset1 align size "name" -- align2 offset2 )
1603: rot dup T , H ( align1 align size offset1 )
1604: + >r nalign r> ;
1.44 pazsan 1605: by (Field)
1.24 pazsan 1606: Builder Field
1607:
1.51 anton 1608: : struct T 1 chars 0 H ;
1.24 pazsan 1609: : end-struct T 2Constant H ;
1610:
1.52 jwilke 1611: : cell% ( n -- size align )
1.51 anton 1612: T 1 cells H dup ;
1.24 pazsan 1613:
1614: \ ' 2Constant Alias2 end-struct
1615: \ 0 1 T Chars H 2Constant struct
1.1 anton 1616:
1.52 jwilke 1617: \ structural conditionals 17dec92py
1618:
1619: >CROSS
1620: : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
1621: : sys? ( sys -- sys ) dup 0= ?struc ;
1622: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
1623:
1624: : branchoffset ( src dest -- ) - ;
1625:
1626: : >resolve ( sys -- ) T here ( dup ." >" hex. ) over branchoffset swap ! H ;
1627:
1628: : <resolve ( sys -- ) T here ( dup ." <" hex. ) branchoffset , H ;
1629:
1.54 pazsan 1630: :noname compile branch T here branchoffset , H ;
1631: IS branch, ( target-addr -- )
1632: :noname compile ?branch T here branchoffset , H ;
1633: IS ?branch, ( target-addr -- )
1634: :noname compile branch T here 0 , H ;
1635: IS branchmark, ( -- branchtoken )
1636: :noname compile ?branch T here 0 , H ;
1637: IS ?branchmark, ( -- branchtoken )
1638: :noname T here 0 , H ;
1639: IS ?domark, ( -- branchtoken )
1640: :noname dup T @ H ?struc T here over branchoffset swap ! H ;
1641: IS branchtoresolve, ( branchtoken -- )
1642: :noname branchto, T here H ;
1643: IS branchtomark, ( -- target-addr )
1.52 jwilke 1644:
1645: >TARGET
1646:
1647: \ Structural Conditionals 12dec92py
1648:
1649: Cond: BUT restrict? sys? swap ;Cond
1650: Cond: YET restrict? sys? dup ;Cond
1651:
1.54 pazsan 1652: 0 [IF]
1.52 jwilke 1653: >CROSS
1654: Variable tleavings
1655: >TARGET
1656:
1657: Cond: DONE ( addr -- ) restrict? tleavings @
1658: BEGIN 2dup u> 0= WHILE dup T @ H swap >resolve REPEAT
1659: tleavings ! drop ;Cond
1660:
1661: >CROSS
1.54 pazsan 1662: : (leave) T here H tleavings @ T , H tleavings ! ;
1.52 jwilke 1663: >TARGET
1664:
1.54 pazsan 1665: Cond: LEAVE restrict? compile branch (leave) ;Cond
1666: Cond: ?LEAVE restrict? compile 0= compile ?branch (leave) ;Cond
1.52 jwilke 1667:
1.53 jwilke 1668: [ELSE]
1669: \ !! This is WIP
1670: \ The problem is (?DO)!
1671: \ perhaps we need a plug-in for (?DO)
1672:
1673: >CROSS
1674: Variable tleavings 0 tleavings !
1.54 pazsan 1675: : (done) ( addr -- )
1676: tleavings @
1677: BEGIN dup
1678: WHILE
1679: >r dup r@ cell+ @ \ address of branch
1680: u> 0= \ lower than DO?
1681: WHILE
1682: r@ 2 cells + @ \ branch token
1683: branchtoresolve,
1684: r@ @ r> free throw
1685: REPEAT r> THEN
1686: tleavings ! drop ;
1687:
1.53 jwilke 1688: >TARGET
1689:
1.54 pazsan 1690: Cond: DONE ( addr -- ) restrict? (done) ;Cond
1.53 jwilke 1691:
1692: >CROSS
1.54 pazsan 1693: : (leave) ( branchtoken -- )
1.53 jwilke 1694: 3 cells allocate throw >r
1695: T here H r@ cell+ !
1696: r@ 2 cells + !
1697: tleavings @ r@ !
1698: r> tleavings ! ;
1699: >TARGET
1700:
1.54 pazsan 1701: Cond: LEAVE restrict? branchmark, (leave) ;Cond
1702: Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond
1.53 jwilke 1703:
1704: [THEN]
1705:
1.54 pazsan 1706: >CROSS
1707: \ !!JW ToDo : Move to general tools section
1708:
1709: : to1 ( x1 x2 xn n -- addr )
1710: \G packs n stack elements in a allocated memory region
1711: dup dup 1+ cells allocate throw dup >r swap 1+
1712: 0 DO tuck ! cell+ LOOP
1713: drop r> ;
1714: : 1to ( addr -- x1 x2 xn )
1715: \G unpacks the elements saved by to1
1716: dup @ swap over cells + swap
1717: 0 DO dup @ swap 1 cells - LOOP
1718: free throw ;
1719:
1720: : loop] branchto, dup <resolve tcell - (done) ;
1721:
1722: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
1723:
1724: >TARGET
1725:
1.52 jwilke 1726: \ Structural Conditionals 12dec92py
1727:
1.53 jwilke 1728: >TARGET
1.52 jwilke 1729: Cond: AHEAD restrict? branchmark, ;Cond
1730: Cond: IF restrict? ?branchmark, ;Cond
1731: Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond
1732: Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond
1733:
1734: Cond: BEGIN restrict? branchtomark, ;Cond
1735: Cond: WHILE restrict? sys? compile IF swap ;Cond
1736: Cond: AGAIN restrict? sys? branch, ;Cond
1737: Cond: UNTIL restrict? sys? ?branch, ;Cond
1738: Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
1739:
1740: Cond: CASE restrict? 0 ;Cond
1741: Cond: OF restrict? 1+ >r compile over compile =
1742: compile IF compile drop r> ;Cond
1.45 pazsan 1743: Cond: ENDOF restrict? >r compile ELSE r> ;Cond
1744: Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond
1.1 anton 1745:
1746: \ Structural Conditionals 12dec92py
1747:
1.54 pazsan 1748: :noname
1749: 0 compile (do)
1750: branchtomark, 2 to1 ;
1751: IS do, ( -- target-addr )
1752:
1753: \ :noname
1754: \ compile 2dup compile = compile IF
1755: \ compile 2drop compile ELSE
1756: \ compile (do) branchtomark, 2 to1 ;
1757: \ IS ?do,
1758:
1759: :noname
1760: 0 compile (?do) ?domark, (leave)
1761: branchtomark, 2 to1 ;
1762: IS ?do, ( -- target-addr )
1763: :noname compile (for) branchtomark, ;
1764: IS for, ( -- target-addr )
1765: :noname 1to compile (loop) loop] compile unloop skiploop] ;
1766: IS loop, ( target-addr -- )
1767: :noname 1to compile (+loop) loop] compile unloop skiploop] ;
1768: IS +loop, ( target-addr -- )
1769: :noname compile (next) loop] compile unloop ;
1770: IS next, ( target-addr -- )
1771:
1772: Cond: DO restrict? do, ;Cond
1773: Cond: ?DO restrict? ?do, ;Cond
1774: Cond: FOR restrict? for, ;Cond
1775:
1776: Cond: LOOP restrict? sys? loop, ;Cond
1777: Cond: +LOOP restrict? sys? +loop, ;Cond
1778: Cond: NEXT restrict? sys? next, ;Cond
1.52 jwilke 1779:
1.1 anton 1780: \ String words 23feb93py
1781:
1.52 jwilke 1782: : ," [char] " parse T string, align H ;
1.1 anton 1783:
1784: Cond: ." restrict? compile (.") T ," H ;Cond
1785: Cond: S" restrict? compile (S") T ," H ;Cond
1786: Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond
1787:
1788: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1789: : IS T ' >body ! H ;
1.9 pazsan 1790: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
1791: : TO T ' >body ! H ;
1.1 anton 1792:
1.52 jwilke 1793: Cond: defers T ' >body @ compile, H ;Cond
1794: : on T -1 swap ! H ;
1795: : off T 0 swap ! H ;
1796:
1.1 anton 1797: \ LINKED ERR" ENV" 2ENV" 18may93jaw
1798:
1799: \ linked list primitive
1800: : linked T here over @ A, swap ! H ;
1.52 jwilke 1801: : chained T linked A, H ;
1.1 anton 1802:
1803: : err" s" ErrLink linked" evaluate T , H
1.52 jwilke 1804: [char] " parse T string, align H ;
1.1 anton 1805:
1806: : env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 1807: T string, align , H ;
1.1 anton 1808:
1809: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 1810: here >r T string, align , , H
1.1 anton 1811: r> dup T c@ H 80 and swap T c! H ;
1812:
1813: \ compile must be last 22feb93py
1814:
1815: Cond: compile ( -- ) restrict? \ name
1.13 pazsan 1816: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 1817: 0> IF gexecute
1818: ELSE dup >magic @ <imm> =
1819: IF gexecute
1.54 pazsan 1820: ELSE compile (compile) addr, THEN THEN ;Cond
1.1 anton 1821:
1822: Cond: postpone ( -- ) restrict? \ name
1.13 pazsan 1823: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 1824: 0> IF gexecute
1825: ELSE dup >magic @ <imm> =
1826: IF gexecute
1.54 pazsan 1827: ELSE compile (compile) addr, THEN THEN ;Cond
1828:
1829: \ \ minimal definitions
1830:
1.1 anton 1831: >MINIMAL
1832: also minimal
1833: \ Usefull words 13feb93py
1834:
1835: : KB 400 * ;
1836:
1.54 pazsan 1837: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
1838:
1839: \ it is useful to define our own structures and not to rely
1840: \ on the words in the compiler
1841: \ The words in the compiler might be defined with vocabularies
1842: \ this doesn't work with our self-made compile-loop
1843:
1844: Create parsed 20 chars allot \ store word we parsed
1845:
1846: : upcase
1847: parsed count bounds
1848: ?DO I c@ toupper I c! LOOP ;
1849:
1850: : [ELSE]
1851: 1 BEGIN
1852: BEGIN bl word count dup WHILE
1853: comment? parsed place upcase parsed count
1854: 2dup s" [IF]" compare 0= >r
1855: 2dup s" [IFUNDEF]" compare 0= >r
1856: 2dup s" [IFDEF]" compare 0= r> or r> or
1857: IF 2drop 1+
1858: ELSE 2dup s" [ELSE]" compare 0=
1859: IF 2drop 1- dup
1860: IF 1+
1861: THEN
1862: ELSE
1863: 2dup s" [ENDIF]" compare 0= >r
1864: s" [THEN]" compare 0= r> or
1865: IF 1- THEN
1866: THEN
1867: THEN
1868: ?dup 0= ?EXIT
1869: REPEAT
1870: 2drop refill 0=
1871: UNTIL drop ; immediate
1872:
1873: : [THEN] ( -- ) ; immediate
1874:
1875: : [ENDIF] ( -- ) ; immediate
1876:
1877: : [IF] ( flag -- )
1878: 0= IF postpone [ELSE] THEN ; immediate
1879:
1880: Cond: [IF] postpone [IF] ;Cond
1881: Cond: [THEN] postpone [THEN] ;Cond
1882: Cond: [ELSE] postpone [ELSE] ;Cond
1883:
1.1 anton 1884: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
1885:
1.43 pazsan 1886: : defined? defined? ;
1.44 pazsan 1887: : needed? needed? ;
1888: : doer? doer? ;
1.1 anton 1889:
1.52 jwilke 1890: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
1891:
1892: : directive?
1893: bl word count [ ' target >wordlist ] aliteral search-wordlist
1894: dup IF nip THEN ;
1895:
1896: : [IFDEF] >in @ directive? swap >in !
1897: 0= IF defined? ELSE name 2drop true THEN
1898: postpone [IF] ;
1899:
1.43 pazsan 1900: : [IFUNDEF] defined? 0= postpone [IF] ;
1.1 anton 1901:
1.54 pazsan 1902: Cond: [IFDEF] postpone [IFDEF] ;Cond
1903:
1904: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
1905:
1.1 anton 1906: \ C: \- \+ Conditional Compiling 09jun93jaw
1907:
1.43 pazsan 1908: : C: >in @ defined? 0=
1.1 anton 1909: IF >in ! T : H
1910: ELSE drop
1911: BEGIN bl word dup c@
1912: IF count comment? s" ;" compare 0= ?EXIT
1913: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
1914: THEN
1915: AGAIN
1916: THEN ;
1917:
1918: also minimal
1919:
1.52 jwilke 1920: \G doesn't skip line when bit is set in debugmask
1921: : \D name evaluate debugmasksource @ and 0= IF postpone \ THEN ;
1922:
1.48 anton 1923: \G interprets the line if word is not defined
1.43 pazsan 1924: : \- defined? IF postpone \ THEN ;
1.48 anton 1925:
1926: \G interprets the line if word is defined
1.43 pazsan 1927: : \+ defined? 0= IF postpone \ THEN ;
1.1 anton 1928:
1.48 anton 1929: Cond: \- \- ;Cond
1930: Cond: \+ \+ ;Cond
1.52 jwilke 1931: Cond: \D \D ;Cond
1.48 anton 1932:
1933: : ?? bl word find IF execute ELSE drop 0 THEN ;
1934:
1935: : needed:
1936: \G defines ghost for words that we want to be compiled
1937: BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
1938:
1939: previous
1940:
1.1 anton 1941: \ save-cross 17mar93py
1942:
1.48 anton 1943: >CROSS
1.34 anton 1944: Create magic s" Gforth10" here over allot swap move
1.26 pazsan 1945:
1.48 anton 1946: char 1 bigendian + tcell + magic 7 + c!
1.26 pazsan 1947:
1.34 anton 1948: : save-cross ( "image-name" "binary-name" -- )
1949: bl parse ." Saving to " 2dup type cr
1.1 anton 1950: w/o bin create-file throw >r
1.48 anton 1951: TNIL IF
1.43 pazsan 1952: s" #! " r@ write-file throw
1953: bl parse r@ write-file throw
1954: s" -i" r@ write-file throw
1955: #lf r@ emit-file throw
1956: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
1957: ?do
1958: bl over emit-file throw
1959: loop
1960: drop
1961: magic 8 r@ write-file throw \ write magic
1962: ELSE
1963: bl parse 2drop
1964: THEN
1.52 jwilke 1965: image @ there
1966: r@ write-file throw \ write image
1.48 anton 1967: TNIL IF
1968: bit$ @ there 1- tcell>bit rshift 1+
1.16 pazsan 1969: r@ write-file throw \ write tags
1.43 pazsan 1970: THEN
1.1 anton 1971: r> close-file throw ;
1972:
1.52 jwilke 1973: : save-region ( addr len -- )
1974: bl parse w/o bin create-file throw >r
1975: swap image @ + swap r@ write-file throw
1976: r> close-file throw ;
1977:
1.1 anton 1978: \ words that should be in minimal
1.52 jwilke 1979:
1980: create s-buffer 50 chars allot
1981:
1.48 anton 1982: >MINIMAL
1983: also minimal
1.1 anton 1984:
1.48 anton 1985: bigendian Constant bigendian
1.52 jwilke 1986: : here there ;
1.54 pazsan 1987:
1988: \ compiler directives
1.52 jwilke 1989: : >ram >ram ;
1990: : >rom >rom ;
1991: : >auto >auto ;
1992: : >tempdp >tempdp ;
1993: : tempdp> tempdp> ;
1994: : const constflag on ;
1995: : warnings name 3 = 0= twarnings ! drop ;
1.54 pazsan 1996: : | NoHeaderFlag on ;
1.52 jwilke 1997:
1.48 anton 1998: : save-cross save-cross ;
1.52 jwilke 1999: : save-region save-region ;
2000: : tdump swap >image swap dump ;
2001:
1.48 anton 2002: also forth
1.52 jwilke 2003: [IFDEF] Label : Label defempty? Label ; [THEN]
2004: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
2005: [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 2006: previous
2007:
1.52 jwilke 2008: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 2009: : + + ;
1.52 jwilke 2010: : 1+ 1 + ;
2011: : 2+ 2 + ;
1.43 pazsan 2012: : or or ;
2013: : 1- 1- ;
2014: : - - ;
1.52 jwilke 2015: : and and ;
2016: : or or ;
1.43 pazsan 2017: : 2* 2* ;
2018: : * * ;
2019: : / / ;
2020: : dup dup ;
2021: : over over ;
2022: : swap swap ;
2023: : rot rot ;
2024: : drop drop ;
2025: : = = ;
2026: : 0= 0= ;
2027: : lshift lshift ;
2028: : 2/ 2/ ;
1.19 pazsan 2029: : . . ;
1.1 anton 2030:
1.43 pazsan 2031: : all-words ['] false IS skip? ;
2032: : needed-words ['] needed? IS skip? ;
2033: : undef-words ['] defined? IS skip? ;
1.1 anton 2034:
1.40 pazsan 2035: : \ postpone \ ; immediate
1.47 pazsan 2036: : \G T-\G ; immediate
1.40 pazsan 2037: : ( postpone ( ; immediate
1.1 anton 2038: : include bl word count included ;
1.52 jwilke 2039: : require require ;
1.1 anton 2040: : .( [char] ) parse type ;
1.52 jwilke 2041: : ." [char] " parse type ;
1.1 anton 2042: : cr cr ;
2043:
2044: : times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation
2045: only forth also minimal definitions
2046:
2047: \ cross-compiler words
2048:
2049: : decimal decimal ;
2050: : hex hex ;
2051:
1.3 pazsan 2052: : tudp T tudp H ;
1.39 pazsan 2053: : tup T tup H ;
2054:
2055: : doc-off false T to-doc H ! ;
2056: : doc-on true T to-doc H ! ;
1.52 jwilke 2057: [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 2058:
2059: minimal
1.1 anton 2060:
2061: \ for debugging...
2062: : order order ;
1.52 jwilke 2063: : hwords words ;
2064: : words also ghosts words previous ;
1.1 anton 2065: : .s .s ;
2066: : bye bye ;
2067:
2068: \ turnkey direction
2069: : H forth ; immediate
2070: : T minimal ; immediate
2071: : G ghosts ; immediate
2072:
2073: : turnkey 0 set-order also Target definitions
2074: also Minimal also ;
2075:
2076: \ these ones are pefered:
2077:
2078: : lock turnkey ;
2079: : unlock forth also cross ;
1.52 jwilke 2080:
2081: : [[ also unlock ;
2082: : ]] previous previous ;
1.1 anton 2083:
2084: unlock definitions also minimal
2085: : lock lock ;
2086: lock
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>