Annotation of gforth/cross.fs, revision 1.124
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
1.86 anton 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
1.30 anton 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
1.87 anton 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21:
1.67 jwilke 22: 0
23: [IF]
24:
25: ToDo:
1.107 jwilke 26: - Crossdoc destination ./doc/crossdoc.fd makes no sense when
27: cross.fs is used seperately. jaw
28: - Do we need this char translation with >address and in branchoffset?
29: (>body also affected) jaw
30: - MAXU etc. can be done with dlit,
1.67 jwilke 31:
32: [THEN]
1.48 anton 33:
1.77 jwilke 34: hex
35:
36: \ debugging for compiling
37:
38: \ print stack at each colon definition
39: \ : : save-input cr bl word count type restore-input throw .s : ;
40:
41: \ print stack at each created word
42: \ : create save-input cr bl word count type restore-input throw .s create ;
43:
44:
45: \ \ ------------- Setup Vocabularies
46:
47: \ Remark: Vocabulary is not ANS, but it should work...
48:
49: Vocabulary Cross
50: Vocabulary Target
51: Vocabulary Ghosts
52: Vocabulary Minimal
53: only Forth also Target also also
54: definitions Forth
55:
1.78 jwilke 56: : T previous Ghosts also Target ; immediate
1.77 jwilke 57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
1.78 jwilke 62: : T previous Ghosts also Target ; immediate
1.77 jwilke 63: : G Ghosts ; immediate
64:
1.105 jwilke 65:
1.77 jwilke 66: : >cross also Cross definitions previous ;
67: : >target also Target definitions previous ;
68: : >minimal also Minimal definitions previous ;
69:
70: H
71:
72: >CROSS
73:
1.123 jwilke 74: \ Test against this definitions to find out whether we are cross-compiling
75: \ may be usefull for assemblers
76: 0 Constant gforth-cross-indicator
77:
1.77 jwilke 78: \ find out whether we are compiling with gforth
79:
80: : defined? bl word find nip ;
81: defined? emit-file defined? toupper and \ drop 0
82: [IF]
83: \ use this in a gforth system
84: : \GFORTH ; immediate
85: : \ANSI postpone \ ; immediate
86: [ELSE]
87: : \GFORTH postpone \ ; immediate
88: : \ANSI ; immediate
89: [THEN]
90:
91: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
92: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
93: 0 \ANSI drop 1
94: [IF]
95: : \G postpone \ ; immediate
96: : rdrop postpone r> postpone drop ; immediate
97: : name bl word count ;
98: : bounds over + swap ;
99: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
100: : linked here over @ , swap ! ;
101: : alias create , DOES> @ EXECUTE ;
102: : defer ['] noop alias ;
103: : is state @
104: IF ' >body postpone literal postpone !
105: ELSE ' >body ! THEN ; immediate
106: : 0>= 0< 0= ;
107: : d<> rot <> -rot <> or ;
108: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
109: Variable ebuf
110: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
111: 0a Constant #lf
112: 0d Constant #cr
113:
114: [IFUNDEF] Warnings Variable Warnings [THEN]
115:
116: \ \ Number parsing 23feb93py
117:
118: \ number? number 23feb93py
119:
120: Variable dpl
121:
122: hex
123: Create bases 10 , 2 , A , 100 ,
124: \ 16 2 10 character
125:
126: \ !! protect BASE saving wrapper against exceptions
127: : getbase ( addr u -- addr' u' )
128: over c@ [char] $ - dup 4 u<
129: IF
130: cells bases + @ base ! 1 /string
131: ELSE
132: drop
133: THEN ;
134:
135: : sign? ( addr u -- addr u flag )
136: over c@ [char] - = dup >r
137: IF
138: 1 /string
139: THEN
140: r> ;
141:
142: : s>unumber? ( addr u -- ud flag )
1.78 jwilke 143: over [char] ' =
144: IF \ a ' alone is rather unusual :-)
145: drop char+ c@ 0 true EXIT
146: THEN
1.77 jwilke 147: base @ >r dpl on getbase
148: 0. 2swap
149: BEGIN ( d addr len )
150: dup >r >number dup
151: WHILE \ there are characters left
152: dup r> -
153: WHILE \ the last >number parsed something
154: dup 1- dpl ! over c@ [char] . =
155: WHILE \ the current char is '.'
156: 1 /string
157: REPEAT THEN \ there are unparseable characters left
158: 2drop false
159: ELSE
160: rdrop 2drop true
161: THEN
162: r> base ! ;
163:
164: \ ouch, this is complicated; there must be a simpler way - anton
165: : s>number? ( addr len -- d f )
166: \ converts string addr len into d, flag indicates success
167: sign? >r
168: s>unumber?
169: 0= IF
170: rdrop false
171: ELSE \ no characters left, all ok
172: r>
173: IF
174: dnegate
175: THEN
176: true
177: THEN ;
178:
179: : s>number ( addr len -- d )
180: \ don't use this, there is no way to tell success
181: s>number? drop ;
182:
183: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
184: s>number? 0=
185: IF
186: 2drop false EXIT
187: THEN
188: dpl @ dup 0< IF
189: nip
190: ELSE
191: 1+
192: THEN ;
193:
194: : number? ( string -- string 0 / n -1 / d 0> )
195: dup >r count snumber? dup if
196: rdrop
197: else
198: r> swap
199: then ;
200:
201: : number ( string -- d )
202: number? ?dup 0= abort" ?" 0<
203: IF
204: s>d
205: THEN ;
206:
207: [THEN]
1.48 anton 208:
1.115 jwilke 209: \ this provides assert( and struct stuff
210: \GFORTH [IFUNDEF] assert1(
211: \GFORTH also forth definitions require assert.fs previous
212: \GFORTH [THEN]
213:
214: >CROSS
215:
1.52 jwilke 216: hex \ the defualt base for the cross-compiler is hex !!
1.78 jwilke 217: \ Warnings off
1.52 jwilke 218:
219: \ words that are generaly useful
220:
1.59 pazsan 221: : KB 400 * ;
1.52 jwilke 222: : >wordlist ( vocabulary-xt -- wordlist-struct )
223: also execute get-order swap >r 1- set-order r> ;
224:
225: : umax 2dup u< IF swap THEN drop ;
226: : umin 2dup u> IF swap THEN drop ;
1.1 anton 227:
1.23 pazsan 228: : string, ( c-addr u -- )
229: \ puts down string as cstring
230: dup c, here swap chars dup allot move ;
1.5 pazsan 231:
1.77 jwilke 232: : ," [char] " parse string, ;
233:
1.52 jwilke 234: : SetValue ( n -- <name> )
1.54 pazsan 235: \G Same behaviour as "Value" if the <name> is not defined
236: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 237: \G SetValue searches in the current vocabulary
1.68 jwilke 238: save-input bl word >r restore-input throw r> count
239: get-current search-wordlist
240: IF drop >r
241: \ we have to set current to be topmost context wordlist
242: get-order get-order get-current swap 1+ set-order
243: r> ['] to execute
1.74 jwilke 244: set-order
1.68 jwilke 245: ELSE Value THEN ;
1.52 jwilke 246:
247: : DefaultValue ( n -- <name> )
1.54 pazsan 248: \G Same behaviour as "Value" if the <name> is not defined
249: \G DefaultValue searches in the current vocabulary
1.52 jwilke 250: save-input bl word >r restore-input throw r> count
251: get-current search-wordlist
1.56 pazsan 252: IF bl word drop 2drop ELSE Value THEN ;
1.1 anton 253:
254: hex
255:
1.120 jwilke 256: \ FIXME delete`
1.52 jwilke 257: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
258: \ for cross-compiling
259: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
260:
1.120 jwilke 261: \ FIXME move down
1.52 jwilke 262: : comment? ( c-addr u -- c-addr u )
263: 2dup s" (" compare 0=
264: IF postpone (
265: ELSE 2dup s" \" compare 0= IF postpone \ THEN
266: THEN ;
267:
1.120 jwilke 268: : X ( -- <name> )
269: \G The next word in the input is a target word.
270: \G Equivalent to T <name> but without permanent
271: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc.
272: bl word count [ ' target >wordlist ] Literal search-wordlist
273: IF state @ IF compile, ELSE execute THEN
274: ELSE -1 ABORT" Cross: access method not supported!"
275: THEN ; immediate
1.105 jwilke 276:
1.52 jwilke 277: \ Begin CROSS COMPILER:
278:
1.74 jwilke 279: \ debugging
1.52 jwilke 280:
1.74 jwilke 281: 0 [IF]
282:
283: This implements debugflags for the cross compiler and the compiled
284: images. It works identical to the has-flags in the environment.
285: The debugflags are defined in a vocabluary. If the word exists and
286: its value is true, the flag is switched on.
287:
288: [THEN]
289:
1.77 jwilke 290: >CROSS
291:
1.74 jwilke 292: Vocabulary debugflags \ debug flags for cross
293: also debugflags get-order over
294: Constant debugflags-wl
295: set-order previous
296:
297: : DebugFlag
298: get-current >r debugflags-wl set-current
299: SetValue
300: r> set-current ;
301:
302: : Debug? ( adr u -- flag )
303: \G return true if debug flag is defined or switched on
304: debugflags-wl search-wordlist
305: IF EXECUTE
306: ELSE false THEN ;
307:
308: : D? ( <name> -- flag )
309: \G return true if debug flag is defined or switched on
310: \G while compiling we do not return the current value but
311: bl word count debug? ;
312:
313: : [d?]
314: \G compile the value-xt so the debug flag can be switched
315: \G the flag must exist!
316: bl word count debugflags-wl search-wordlist
317: IF compile,
318: ELSE -1 ABORT" unknown debug flag"
319: \ POSTPONE false
320: THEN ; immediate
1.54 pazsan 321:
1.123 jwilke 322: : symentry ( adr len taddr -- )
323: \G Produce a symbol table (an optional symbol address
324: \G map) if wanted
325: [ [IFDEF] fd-symbol-table ]
326: base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
327: s" :" fd-symbol-table write-file throw
328: fd-symbol-table write-line throw
329: [ [ELSE] ]
330: 2drop drop
331: [ [THEN] ] ;
332:
333:
1.77 jwilke 334: \ \ -------------------- source file
335:
336: decimal
337:
338: Variable cross-file-list
339: 0 cross-file-list !
340: Variable target-file-list
341: 0 target-file-list !
342: Variable host-file-list
343: 0 host-file-list !
344:
345: cross-file-list Value file-list
346: 0 Value source-desc
347:
348: \ file loading
349:
350: : >fl-id 1 cells + ;
351: : >fl-name 2 cells + ;
352:
353: Variable filelist 0 filelist !
354: Create NoFile ," #load-file#"
355:
356: : loadfile ( -- adr )
357: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
358:
359: : sourcefilename ( -- adr len )
360: loadfile count ;
361:
362: \ANSI : sourceline# 0 ;
363:
364: \ \ -------------------- path handling from kernel/paths.fs
365:
366: \ paths.fs path file handling 03may97jaw
367:
368: \ -Changing the search-path:
369: \ fpath+ <path> adds a directory to the searchpath
370: \ fpath= <path>|<path> makes complete now searchpath
371: \ seperator is |
372: \ .fpath displays the search path
373: \ remark I:
374: \ a ./ in the beginning of filename is expanded to the directory the
375: \ current file comes from. ./ can also be included in the search-path!
376: \ ~+/ loads from the current working directory
377:
378: \ remark II:
379: \ if there is no sufficient space for the search path increase it!
380:
381:
382: \ -Creating custom paths:
383:
384: \ It is possible to use the search mechanism on yourself.
385:
386: \ Make a buffer for the path:
387: \ create mypath 100 chars , \ maximum length (is checked)
388: \ 0 , \ real len
389: \ 100 chars allot \ space for path
390: \ use the same functions as above with:
391: \ mypath path+
392: \ mypath path=
393: \ mypath .path
394:
395: \ do a open with the search path:
396: \ open-path-file ( adr len path -- fd adr len ior )
397: \ the file is opened read-only; if the file is not found an error is generated
398:
399: \ questions to: wilke@jwdt.com
400:
401: [IFUNDEF] +place
402: : +place ( adr len adr )
403: 2dup >r >r
404: dup c@ char+ + swap move
405: r> r> dup c@ rot + swap c! ;
406: [THEN]
407:
408: [IFUNDEF] place
409: : place ( c-addr1 u c-addr2 )
410: 2dup c! char+ swap move ;
411: [THEN]
412:
413: \ if we have path handling, use this and the setup of it
414: [IFUNDEF] open-fpath-file
415:
416: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
417: sourcepath value fpath
418:
419: : also-path ( adr len path^ -- )
420: >r
421: \ len check
422: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
423: \ copy into
424: tuck r@ cell+ dup @ cell+ + swap cmove
425: \ make delimiter
426: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
427: ;
428:
429: : only-path ( adr len path^ -- )
430: dup 0 swap cell+ ! also-path ;
431:
432: : path+ ( path-addr "dir" -- ) \ gforth
433: \G Add the directory @var{dir} to the search path @var{path-addr}.
434: name rot also-path ;
435:
436: : fpath+ ( "dir" ) \ gforth
437: \G Add directory @var{dir} to the Forth search path.
438: fpath path+ ;
439:
440: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
441: \G Make a complete new search path; the path separator is |.
442: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
443: rot only-path ;
444:
445: : fpath= ( "dir1|dir2|dir3" ) \ gforth
446: \G Make a complete new Forth search path; the path separator is |.
447: fpath path= ;
448:
449: : path>counted cell+ dup cell+ swap @ ;
450:
451: : next-path ( adr len -- adr2 len2 )
452: 2dup 0 scan
453: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
454: >r 1+ -rot r@ 1- -rot
455: r> - ;
456:
457: : previous-path ( path^ -- )
458: dup path>counted
459: BEGIN tuck dup WHILE repeat ;
460:
461: : .path ( path-addr -- ) \ gforth
462: \G Display the contents of the search path @var{path-addr}.
463: path>counted
464: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
465:
466: : .fpath ( -- ) \ gforth
467: \G Display the contents of the Forth search path.
468: fpath .path ;
469:
470: : absolut-path? ( addr u -- flag ) \ gforth
471: \G A path is absolute if it starts with a / or a ~ (~ expansion),
472: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
473: \G it has a colon as second character ("C:..."). Paths simply
474: \G containing a / are not absolute!
475: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
476: over c@ [char] / = >r
477: over c@ [char] ~ = >r
478: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
479: 2 min S" ./" compare 0=
480: r> r> r> or or or ;
481:
482: Create ofile 0 c, 255 chars allot
483: Create tfile 0 c, 255 chars allot
484:
485: : pathsep? dup [char] / = swap [char] \ = or ;
486:
487: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
488:
489: : extractpath ( adr len -- adr len2 )
490: BEGIN dup WHILE 1-
491: 2dup + c@ pathsep? IF EXIT THEN
492: REPEAT ;
493:
494: : remove~+ ( -- )
495: ofile count 3 min s" ~+/" compare 0=
496: IF
497: ofile count 3 /string ofile place
498: THEN ;
499:
500: : expandtopic ( -- ) \ stack effect correct? - anton
501: \ expands "./" into an absolute name
502: ofile count 2 min s" ./" compare 0=
503: IF
504: ofile count 1 /string tfile place
505: 0 ofile c! sourcefilename extractpath ofile place
506: ofile c@ IF need/ THEN
507: tfile count over c@ pathsep? IF 1 /string THEN
508: ofile +place
509: THEN ;
510:
511: : compact.. ( adr len -- adr2 len2 )
1.85 pazsan 512: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
513: over swap
514: BEGIN dup WHILE
515: dup >r '/ scan 2dup 4 min s" /../" compare 0=
516: IF
517: dup r> - >r 4 /string over r> + 4 -
518: swap 2dup + >r move dup r> over -
519: ELSE
520: rdrop dup 1 min /string
521: THEN
522: REPEAT drop over - ;
1.77 jwilke 523:
524: : reworkdir ( -- )
525: remove~+
526: ofile count compact..
527: nip ofile c! ;
528:
529: : open-ofile ( -- fid ior )
530: \G opens the file whose name is in ofile
531: expandtopic reworkdir
532: ofile count r/o open-file ;
533:
534: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
535: 0 ofile ! >r >r ofile place need/
536: r> r> ofile +place
537: open-ofile ;
538:
539: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
540: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
541: \G If found, the resulting path and an open file descriptor
542: \G are returned. If the file is not found, @var{ior} is non-zero.
543: >r
544: 2dup absolut-path?
545: IF rdrop
546: ofile place open-ofile
547: dup 0= IF >r ofile count r> THEN EXIT
548: ELSE r> path>counted
549: BEGIN next-path dup
550: WHILE 5 pick 5 pick check-path
551: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
552: REPEAT
553: 2drop 2drop 2drop -38
554: THEN ;
555:
556: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
557: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
558: \G If found, the resulting path and an open file descriptor
559: \G are returned. If the file is not found, @var{ior} is non-zero.
560: fpath open-path-file ;
561:
562: fpath= ~+
563:
564: [THEN]
565:
566: \ \ -------------------- include require 13may99jaw
567:
568: >CROSS
569:
570: : add-included-file ( adr len -- adr )
571: dup >fl-name char+ allocate throw >r
572: file-list @ r@ ! r@ file-list !
573: r@ >fl-name place r> ;
574:
575: : included? ( c-addr u -- f )
576: file-list
577: BEGIN @ dup
578: WHILE >r 2dup r@ >fl-name count compare 0=
579: IF rdrop 2drop true EXIT THEN
580: r>
581: REPEAT
582: 2drop drop false ;
583:
584: false DebugFlag showincludedfiles
585:
586: : included1 ( fd adr u -- )
587: \ include file adr u / fd
588: \ we don't use fd with include-file, because the forth system
589: \ doesn't know the name of the file to get a nice error report
590: [d?] showincludedfiles
591: IF cr ." Including: " 2dup type ." ..." THEN
592: rot close-file throw
593: source-desc >r
594: add-included-file to source-desc
595: sourcefilename
596: ['] included catch
597: r> to source-desc
598: throw ;
599:
600: : included ( adr len -- )
601: cross-file-list to file-list
602: open-fpath-file throw
603: included1 ;
604:
605: : required ( adr len -- )
606: cross-file-list to file-list
607: open-fpath-file throw \ 2dup cr ." R:" type
608: 2dup included?
609: IF 2drop close-file throw
610: ELSE included1
611: THEN ;
612:
613: : include bl word count included ;
614:
615: : require bl word count required ;
616:
1.78 jwilke 617: 0 [IF]
618:
1.77 jwilke 619: also forth definitions previous
620:
621: : included ( adr len -- ) included ;
622:
623: : required ( adr len -- ) required ;
624:
625: : include include ;
626:
627: : require require ;
628:
1.78 jwilke 629: [THEN]
630:
1.77 jwilke 631: >CROSS
632: hex
633:
634: \ \ -------------------- Error Handling 05aug97jaw
635:
636: \ Flags
637:
638: also forth definitions \ these values may be predefined before
639: \ the cross-compiler is loaded
640:
641: false DefaultValue stack-warn \ check on empty stack at any definition
642: false DefaultValue create-forward-warn \ warn on forward declaration of created words
643:
644: previous >CROSS
645:
646: : .dec
647: base @ decimal swap . base ! ;
648:
649: : .sourcepos
650: cr sourcefilename type ." :"
651: sourceline# .dec ;
652:
653: : warnhead
654: \G display error-message head
655: \G perhaps with linenumber and filename
656: .sourcepos ." Warning: " ;
657:
658: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
659:
660: stack-warn [IF]
661: : defempty? empty? ;
662: [ELSE]
663: : defempty? ; immediate
664: [THEN]
665:
1.105 jwilke 666: \ \ -------------------- Compiler Plug Ins 01aug97jaw
667:
668: >CROSS
669:
670: \ Compiler States
671:
672: Variable comp-state
673: 0 Constant interpreting
674: 1 Constant compiling
675: 2 Constant resolving
676: 3 Constant assembling
677:
678: : compiling? comp-state @ compiling = ;
679:
680: : pi-undefined -1 ABORT" Plugin undefined" ;
681:
682: : Plugin ( -- : pluginname )
683: Create
684: \ for normal cross-compiling only one action
685: \ exists, this fields are identical. For the instant
686: \ simulation environment we need, two actions for each plugin
687: \ the target one and the one that generates the simulation code
688: ['] pi-undefined , \ action
689: ['] pi-undefined , \ target plugin action
690: 8765 , \ plugin magic
691: DOES> perform ;
692:
693: Plugin DummyPlugin
694:
695: : 'PI ( -- addr : pluginname )
696: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
697:
698: : plugin-of ( xt -- : pluginname )
699: dup 'PI 2! ;
700:
701: : action-of ( xt -- : plunginname )
702: 'PI cell+ ! ;
703:
704: : TPA ( -- : plugin )
705: \ target plugin action
706: \ executes current target action of plugin
707: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate
708:
709: Variable ppi-temp 0 ppi-temp !
710:
711: : pa:
712: \g define plugin action
713: ppi-temp @ ABORT" pa: definition not closed"
714: 'PI ppi-temp ! :noname ;
715:
716: : ;pa
717: \g end a definition for plugin action
718: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
719:
720:
1.107 jwilke 721: Plugin dlit, ( d -- ) \ compile numerical value the target
1.105 jwilke 722: Plugin lit, ( n -- )
723: Plugin alit, ( n -- )
724:
725: Plugin branch, ( target-addr -- ) \ compiles a branch
726: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
727: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
728: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
729: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
730: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
731: ' NOOP plugin-of branchto,
732: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
733: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
734:
735: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
736: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
737: Plugin colonmark, ( -- addr ) \ marks a colon call
738: Plugin colon-resolve ( tcfa addr -- )
739:
740: Plugin addr-resolve ( target-addr addr -- )
741: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
742:
743: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
744: Plugin if, ( -- if-token )
745: Plugin else, ( if-token -- if-token )
746: Plugin then, ( if-token -- )
747: Plugin ahead,
748: Plugin begin,
749: Plugin while,
750: Plugin until,
751: Plugin again,
752: Plugin repeat,
753: Plugin cs-swap ( x1 x2 -- x2 x1 )
754:
755: Plugin case, ( -- n )
756: Plugin of, ( n -- x1 n )
757: Plugin endof, ( x1 n -- x2 n )
758: Plugin endcase, ( x1 .. xn n -- )
759:
760: Plugin do, ( -- do-token )
761: Plugin ?do, ( -- ?do-token )
762: Plugin for, ( -- for-token )
763: Plugin loop, ( do-token / ?do-token -- )
764: Plugin +loop, ( do-token / ?do-token -- )
765: Plugin next, ( for-token )
766: Plugin leave, ( -- )
767: Plugin ?leave, ( -- )
768:
1.121 jwilke 769: Plugin ca>native \ Convert a code address to the processors
770: \ native address. This is used in doprim, and
771: \ code/code: primitive definitions word to
772: \ convert the addresses.
773: \ The only target where we need this is the misc
774: \ which is a 16 Bit processor with word addresses
775: \ but the forth system we build has a normal byte
776: \ addressed memory model
1.105 jwilke 777:
778: Plugin doprim, \ compiles start of a primitive
779: Plugin docol, \ compiles start of a colon definition
780: Plugin doer,
781: Plugin fini, \ compiles end of definition ;s
782: Plugin doeshandler,
783: Plugin dodoes,
784:
785: Plugin colon-start
786: ' noop plugin-of colon-start
787: Plugin colon-end
788: ' noop plugin-of colon-end
789:
790: Plugin ]comp \ starts compilation
791: ' noop plugin-of ]comp
792: Plugin comp[ \ ends compilation
793: ' noop plugin-of comp[
794:
795: Plugin t>body \ we need the system >body
796: \ and the target >body
797:
798: >TARGET
799: : >body t>body ;
800:
801:
1.103 jwilke 802: \ Ghost Builder 06oct92py
803:
1.105 jwilke 804: >CROSS
1.103 jwilke 805: hex
1.105 jwilke 806: \ Values for ghost magic
1.103 jwilke 807: 4711 Constant <fwd> 4712 Constant <res>
808: 4713 Constant <imm> 4714 Constant <do:>
809: 4715 Constant <skip>
810:
1.105 jwilke 811: \ Bitmask for ghost flags
1.103 jwilke 812: 1 Constant <unique>
1.105 jwilke 813: 2 Constant <primitive>
814:
815: \ FXIME: move this to general stuff?
816: : set-flag ( addr flag -- )
817: over @ or swap ! ;
818:
819: : reset-flag ( addr flag -- )
820: invert over @ and swap ! ;
821:
822: : get-flag ( addr flag -- f )
823: swap @ and 0<> ;
824:
1.103 jwilke 825:
826: Struct
1.52 jwilke 827:
1.103 jwilke 828: \ link to next ghost (always the first element)
829: cell% field >next-ghost
1.52 jwilke 830:
1.103 jwilke 831: \ type of ghost
832: cell% field >magic
833:
834: \ pointer where ghost is in target, or if unresolved
835: \ points to the where we have to resolve (linked-list)
836: cell% field >link
1.52 jwilke 837:
1.106 jwilke 838: \ execution semantics (while target compiling) of ghost
1.103 jwilke 839: cell% field >exec
1.52 jwilke 840:
1.106 jwilke 841: \ compilation action of this ghost; this is what is
842: \ done to compile a call (or whatever) to this definition.
843: \ E.g. >comp contains the semantic of postpone s"
844: \ whereas >exec-compile contains the semantic of s"
1.105 jwilke 845: cell% field >comp
846:
1.106 jwilke 847: \ Compilation sematics (while parsing) of this ghost. E.g.
848: \ "\" will skip the rest of line.
849: \ These semantics are defined by Cond: and
850: \ if a word is made immediate in instant, then the >exec2 field
851: \ gets copied to here
1.103 jwilke 852: cell% field >exec-compile
1.52 jwilke 853:
1.106 jwilke 854: \ Additional execution semantics of this ghost. This is used
855: \ for code generated by instant and for the doer-xt of created
856: \ words
1.103 jwilke 857: cell% field >exec2
1.52 jwilke 858:
1.103 jwilke 859: cell% field >created
1.52 jwilke 860:
1.103 jwilke 861: \ the xt of the created ghost word itself
862: cell% field >ghost-xt
1.52 jwilke 863:
1.103 jwilke 864: \ pointer to the counted string of the assiciated
865: \ assembler label
866: cell% field >asm-name
1.52 jwilke 867:
1.103 jwilke 868: \ mapped primitives have a special address, so
869: \ we are able to detect them
870: cell% field >asm-dummyaddr
871:
872: \ for builder (create, variable...) words
873: \ the execution symantics of words built are placed here
874: \ this is a doer ghost or a dummy ghost
875: cell% field >do:ghost
1.93 pazsan 876:
1.103 jwilke 877: cell% field >ghost-flags
1.93 pazsan 878:
1.103 jwilke 879: cell% field >ghost-name
1.52 jwilke 880:
1.103 jwilke 881: End-Struct ghost-struct
1.52 jwilke 882:
1.103 jwilke 883: Variable ghost-list
884: 0 ghost-list !
1.52 jwilke 885:
886: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103 jwilke 887: \ Variable last-ghost \ last ghost that is created
1.52 jwilke 888: Variable last-header-ghost \ last ghost definitions with header
889:
1.103 jwilke 890: \ space for ghosts resolve structure
891: \ we create ghosts in a sepearte space
892: \ and not to the current host dp, because this
893: \ gives trouble with instant while compiling and creating
894: \ a ghost for a forward reference
895: \ BTW: we cannot allocate another memory region
896: \ because allot will check the overflow!!
897: Variable cross-space-dp
898: Create cross-space 250000 allot here 100 allot align
899: Constant cross-space-end
900: cross-space cross-space-dp !
901: Variable cross-space-dp-orig
902:
903: : cross-space-used cross-space-dp @ cross-space - ;
904:
905: : >space ( -- )
906: dp @ cross-space-dp-orig !
907: cross-space-dp @ dp ! ;
908:
909: : space> ( -- )
910: dp @ dup cross-space-dp !
911: cross-space-end u> ABORT" CROSS: cross-space overflow"
912: cross-space-dp-orig @ dp ! ;
913:
1.106 jwilke 914: \ this is just for debugging, to see this in the backtrace
1.103 jwilke 915: : execute-exec execute ;
916: : execute-exec2 execute ;
917: : execute-exec-compile execute ;
918:
919: : NoExec
920: executed-ghost @ >exec2 @
921: ?dup
922: IF execute-exec2
923: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
924: THEN ;
925:
1.105 jwilke 926: Defer is-forward
927:
1.103 jwilke 928: : (ghostheader) ( -- )
1.121 jwilke 929: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
1.118 pazsan 930: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
1.103 jwilke 931:
932: : ghostheader ( -- ) (ghostheader) 0 , ;
933:
934: ' Ghosts >wordlist Constant ghosts-wordlist
935:
936: \ the current wordlist for ghost definitions in the host
937: ghosts-wordlist Value current-ghosts
938:
1.52 jwilke 939: : Make-Ghost ( "name" -- ghost )
1.103 jwilke 940: >space
941: \ save current and create in ghost vocabulary
942: get-current >r current-ghosts set-current
943: >in @ Create >in !
944: \ some forth systems like iForth need the immediate directly
945: \ after the word is created
946: \ restore current
947: r> set-current
948: here (ghostheader)
949: bl word count string, align
950: space>
951: \ set ghost-xt field by doing a search
952: dup >ghost-name count
953: current-ghosts search-wordlist
954: 0= ABORT" CROSS: Just created, must be there!"
955: over >ghost-xt !
956: DOES>
957: dup executed-ghost !
958: >exec @ execute-exec ;
1.52 jwilke 959:
960: \ ghost words 14oct92py
961: \ changed: 10may93py/jaw
962:
1.103 jwilke 963: Defer search-ghosts
964:
965: : (search-ghosts) ( adr len -- cfa true | 0 )
966: current-ghosts search-wordlist ;
967:
968: ' (search-ghosts) IS search-ghosts
969:
970: : gsearch ( addr len -- ghost true | 0 )
971: search-ghosts
972: dup IF swap >body swap THEN ;
973:
974: : gfind ( string -- ghost true / string false )
1.52 jwilke 975: \ searches for string in word-list ghosts
1.103 jwilke 976: \ dup count type space
977: dup >r count gsearch
978: dup IF rdrop ELSE r> swap THEN ;
1.52 jwilke 979:
980: : gdiscover ( xt -- ghost true | xt false )
1.103 jwilke 981: >r ghost-list
1.52 jwilke 982: BEGIN @ dup
1.103 jwilke 983: WHILE dup >magic @ <fwd> <>
984: IF dup >link @ r@ =
985: IF rdrop true EXIT THEN
986: THEN
1.52 jwilke 987: REPEAT
1.103 jwilke 988: drop r> false ;
1.52 jwilke 989:
1.105 jwilke 990: : xt>ghost ( xt -- ghost )
991: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
992:
1.103 jwilke 993: : Ghost ( "name" -- ghost )
994: >in @ bl word gfind IF nip EXIT THEN
1.52 jwilke 995: drop >in ! Make-Ghost ;
996:
997: : >ghostname ( ghost -- adr len )
1.103 jwilke 998: >ghost-name count ;
999:
1000: : forward? ( ghost -- flag )
1001: >magic @ <fwd> = ;
1002:
1003: : undefined? ( ghost -- flag )
1004: >magic @ dup <fwd> = swap <skip> = or ;
1005:
1006: : immediate? ( ghost -- flag )
1007: >magic @ <imm> = ;
1008:
1009: Variable TWarnings
1010: TWarnings on
1011: Variable Exists-Warnings
1012: Exists-Warnings on
1013:
1014: : exists-warning ( ghost -- ghost )
1015: TWarnings @ Exists-Warnings @ and
1016: IF dup >ghostname warnhead type ." exists " THEN ;
1017:
1018: \ : HeaderGhost Ghost ;
1019:
1020: Variable reuse-ghosts reuse-ghosts off
1021:
1022: : HeaderGhost ( "name" -- ghost )
1023: >in @
1024: bl word count
1025: \ 2dup type space
1026: current-ghosts search-wordlist
1027: IF >body dup undefined? reuse-ghosts @ or
1028: IF nip EXIT
1029: ELSE exists-warning
1030: THEN
1031: drop >in !
1032: ELSE >in !
1033: THEN
1034: \ we keep the execution semantics of the prviously
1035: \ defined words, this is a workaround
1036: \ for the redefined \ until vocs work
1037: Make-Ghost ;
1038:
1.78 jwilke 1039: : .ghost ( ghost -- ) >ghostname type ;
1040:
1.77 jwilke 1041: \ ' >ghostname ALIAS @name
1.52 jwilke 1042:
1.115 jwilke 1043: : findghost ( "ghostname" -- ghost )
1044: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1045:
1.103 jwilke 1046: : [G'] ( -- ghost : name )
1047: \G ticks a ghost and returns its address
1.115 jwilke 1048: findghost
1049: state @ IF postpone literal THEN ; immediate
1.103 jwilke 1050:
1.105 jwilke 1051: : g>xt ( ghost -- xt )
1052: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1.103 jwilke 1053: dup undefined? ABORT" CROSS: forward " >link @ ;
1054:
1.105 jwilke 1055: : g>body ( ghost -- body )
1056: \G Returns the body-address (pfa) of a ghost.
1057: \G Issues a warning if undefined (a forward-reference).
1058: g>xt X >body ;
1059:
1.103 jwilke 1060: 1 Constant <label>
1.52 jwilke 1061:
1.103 jwilke 1062: Struct
1063: \ bitmask of address type (not used for now)
1064: cell% field addr-type
1065: \ if this address is an xt, this field points to the ghost
1066: cell% field addr-xt-ghost
1067: \ a bit mask that tells as what part of the cell
1068: \ is refenced from an address pointer, used for assembler generation
1069: cell% field addr-refs
1070: End-Struct addr-struct
1071:
1072: : %allocerase ( align size -- addr )
1073: dup >r %alloc dup r> erase ;
1074:
1075: \ returns the addr struct, define it if 0 reference
1076: : define-addr-struct ( addr -- struct-addr )
1077: dup @ ?dup IF nip EXIT THEN
1078: addr-struct %allocerase tuck swap ! ;
1.75 jwilke 1079:
1.118 pazsan 1080: >cross
1081:
1.52 jwilke 1082: \ Predefined ghosts 12dec92py
1083:
1.114 jwilke 1084: Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1085:
1.103 jwilke 1086: Ghost 0= drop
1087: Ghost branch Ghost ?branch 2drop
1088: Ghost unloop Ghost ;S 2drop
1.118 pazsan 1089: Ghost lit Ghost ! 2drop
1090: Ghost noop drop
1.103 jwilke 1091: Ghost over Ghost = Ghost drop 2drop drop
1092: Ghost 2drop drop
1093: Ghost 2dup drop
1.115 jwilke 1094: Ghost call drop
1095: Ghost @ drop
1096: Ghost useraddr drop
1097: Ghost execute drop
1098: Ghost + drop
1099: Ghost decimal drop
1100: Ghost hex drop
1.118 pazsan 1101: Ghost lit@ drop
1102: Ghost lit-perform drop
1103: Ghost lit+ drop
1104: Ghost does-exec drop
1.52 jwilke 1105:
1.119 pazsan 1106: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1107: Ghost :dovar drop
1108:
1.52 jwilke 1109: \ \ Parameter for target systems 06oct92py
1110:
1.103 jwilke 1111:
1.52 jwilke 1112: \ we define it ans like...
1113: wordlist Constant target-environment
1114:
1.103 jwilke 1115: \ save information of current dictionary to restore with environ>
1116: Variable env-current
1.52 jwilke 1117:
1118: : >ENVIRON get-current env-current ! target-environment set-current ;
1119: : ENVIRON> env-current @ set-current ;
1.43 pazsan 1120:
1.48 anton 1121: >TARGET
1.43 pazsan 1122:
1.103 jwilke 1123: : environment? ( addr len -- [ x ] true | false )
1124: \G returns the content of environment variable and true or
1125: \G false if not present
1126: target-environment search-wordlist
1127: IF EXECUTE true ELSE false THEN ;
1128:
1129: : $has? ( addr len -- x | false )
1130: \G returns the content of environment variable
1131: \G or false if not present
1132: T environment? H dup IF drop THEN ;
1133:
1134: : e? ( "name" -- x )
1135: \G returns the content of environment variable.
1136: \G The variable is expected to exist. If not, issue an error.
1137: bl word count T environment? H
1138: 0= ABORT" environment variable not defined!" ;
1139:
1140: : has? ( "name" --- x | false )
1141: \G returns the content of environment variable
1142: \G or false if not present
1143: bl word count T $has? H ;
1.52 jwilke 1144:
1.48 anton 1145:
1.54 pazsan 1146: >ENVIRON get-order get-current swap 1+ set-order
1147: true SetValue compiler
1.83 pazsan 1148: true SetValue cross
1.54 pazsan 1149: true SetValue standard-threading
1150: >TARGET previous
1.52 jwilke 1151:
1.77 jwilke 1152: 0
1.103 jwilke 1153: [IFDEF] mach-file drop mach-file count 1 [THEN]
1154: [IFDEF] machine-file drop machine-file 1 [THEN]
1155: [IF] included hex
1.77 jwilke 1156: [ELSE] cr ." No machine description!" ABORT
1157: [THEN]
1.43 pazsan 1158:
1.53 jwilke 1159: >ENVIRON
1160:
1.54 pazsan 1161: T has? ec H
1162: [IF]
1163: false DefaultValue relocate
1164: false DefaultValue file
1165: false DefaultValue OS
1166: false DefaultValue prims
1167: false DefaultValue floating
1168: false DefaultValue glocals
1169: false DefaultValue dcomps
1170: false DefaultValue hash
1171: false DefaultValue xconds
1172: false DefaultValue header
1.105 jwilke 1173: false DefaultValue backtrace
1174: false DefaultValue new-input
1175: false DefaultValue peephole
1.54 pazsan 1176: [THEN]
1177:
1178: true DefaultValue interpreter
1179: true DefaultValue ITC
1180: false DefaultValue rom
1.73 jwilke 1181: true DefaultValue standardthreading
1.53 jwilke 1182:
1.52 jwilke 1183: >TARGET
1.53 jwilke 1184: s" relocate" T environment? H
1.103 jwilke 1185: \ JAW why set NIL to this?!
1186: [IF] drop \ SetValue NIL
1.113 jwilke 1187: [ELSE] >ENVIRON X NIL SetValue relocate
1.53 jwilke 1188: [THEN]
1.113 jwilke 1189: >TARGET
1190:
1191: 0 Constant NIL
1.43 pazsan 1192:
1193: >CROSS
1194:
1.52 jwilke 1195: \ \ Create additional parameters 19jan95py
1.19 pazsan 1196:
1.71 jwilke 1197: \ currently cross only works for host machines with address-unit-bits
1198: \ eual to 8 because of s! and sc!
1199: \ but I start to query the environment just to modularize a little bit
1200:
1201: : check-address-unit-bits ( -- )
1202: \ s" ADDRESS-UNIT-BITS" environment?
1203: \ IF 8 <> ELSE true THEN
1204: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1205:
1206: \ shit, this doesn't work because environment? is only defined for
1207: \ gforth.fi and not kernl???.fi
1208: ;
1209:
1210: check-address-unit-bits
1211: 8 Constant bits/byte \ we define: byte is address-unit
1212:
1213: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 1214: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 1215:
1.19 pazsan 1216: T
1.71 jwilke 1217: NIL Constant TNIL
1218: cell Constant tcell
1219: cell<< Constant tcell<<
1220: cell>bit Constant tcell>bit
1221: bits/char Constant tbits/char
1222: bits/char H bits/byte T /
1223: Constant tchar
1224: float Constant tfloat
1225: 1 bits/char lshift Constant tmaxchar
1226: [IFUNDEF] bits/byte
1227: 8 Constant tbits/byte
1228: [ELSE]
1229: bits/byte Constant tbits/byte
1230: [THEN]
1.19 pazsan 1231: H
1.81 pazsan 1232: tbits/char bits/byte / Constant tbyte
1.71 jwilke 1233:
1.19 pazsan 1234:
1.48 anton 1235: \ Variables 06oct92py
1236:
1237: Variable image
1.124 ! jwilke 1238: Variable (tlast)
! 1239: (tlast) Value tlast TNIL tlast ! \ Last name field
1.48 anton 1240: Variable tlastcfa \ Last code field
1241: Variable bit$
1.52 jwilke 1242:
1243: \ statistics 10jun97jaw
1244:
1245: Variable headers-named 0 headers-named !
1246: Variable user-vars 0 user-vars !
1247:
1.67 jwilke 1248: : target>bitmask-size ( u1 -- u2 )
1249: 1- tcell>bit rshift 1+ ;
1250:
1.105 jwilke 1251: : allocatetarget ( size -- adr )
1.67 jwilke 1252: dup allocate ABORT" CROSS: No memory for target"
1253: swap over swap erase ;
1.52 jwilke 1254:
1.54 pazsan 1255: \ \ memregion.fs
1.52 jwilke 1256:
1257:
1258: Variable last-defined-region \ pointer to last defined region
1259: Variable region-link \ linked list with all regions
1260: Variable mirrored-link \ linked list for mirrored regions
1261: 0 dup mirrored-link ! region-link !
1262:
1.124 ! jwilke 1263: : >rname 8 cells + ;
! 1264: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation
1.103 jwilke 1265: : >rmem 5 cells + ;
1.124 ! jwilke 1266: : >rtype 6 cells + ; \ field per cell witch points to a type struct
! 1267: : >rrom 7 cells + ; \ a -1 indicates that this region is rom
1.67 jwilke 1268: : >rlink 3 cells + ;
1.52 jwilke 1269: : >rdp 2 cells + ;
1270: : >rlen cell+ ;
1271: : >rstart ;
1272:
1.113 jwilke 1273: : (region) ( addr len region -- )
1274: \G change startaddress and length of an existing region
1275: >r r@ last-defined-region !
1276: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1.52 jwilke 1277:
1.123 jwilke 1278: : region ( addr len -- "name" )
1.103 jwilke 1279: \G create a new region
1.52 jwilke 1280: \ check whether predefined region exists
1281: save-input bl word find >r >r restore-input throw r> r> 0=
1282: IF \ make region
1283: drop
1284: save-input create restore-input throw
1285: here last-defined-region !
1286: over ( startaddr ) , ( length ) , ( dp ) ,
1.124 ! jwilke 1287: region-link linked 0 , 0 , 0 , 0 , bl word count string,
1.52 jwilke 1288: ELSE \ store new parameters in region
1289: bl word drop
1.113 jwilke 1290: >body (region)
1.52 jwilke 1291: THEN ;
1292:
1.103 jwilke 1293: : borders ( region -- startaddr endaddr )
1294: \G returns lower and upper region border
1.67 jwilke 1295: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 1296:
1.103 jwilke 1297: : extent ( region -- startaddr len )
1298: \G returns the really used area
1.67 jwilke 1299: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 1300:
1.103 jwilke 1301: : area ( region -- startaddr totallen )
1302: \G returns the total area
1.79 jwilke 1303: dup >rstart @ swap >rlen @ ;
1.52 jwilke 1304:
1.124 ! jwilke 1305: : mirrored ( -- )
! 1306: \G mark last defined region as mirrored
1.52 jwilke 1307: mirrored-link
1.68 jwilke 1308: align linked last-defined-region @ , ;
1.52 jwilke 1309:
1.124 ! jwilke 1310: : writeprotected
! 1311: \G mark a region as write protected
! 1312: -1 last-defined-region @ >rrom ! ;
! 1313:
1.67 jwilke 1314: : .addr ( u -- )
1315: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 1316: base @ >r hex
1317: tcell 2 u>
1.77 jwilke 1318: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 1319: ELSE s>d <# # # # # # #> type
1.103 jwilke 1320: THEN r> base ! space ;
1.52 jwilke 1321:
1322: : .regions \G display region statistic
1323:
1324: \ we want to list the regions in the right order
1325: \ so first collect all regions on stack
1326: 0 region-link @
1327: BEGIN dup WHILE dup @ REPEAT drop
1328: BEGIN dup
1.67 jwilke 1329: WHILE cr
1330: 0 >rlink - >r
1331: r@ >rname count tuck type
1.52 jwilke 1332: 12 swap - 0 max spaces space
1.67 jwilke 1333: ." Start: " r@ >rstart @ dup .addr space
1334: ." End: " r@ >rlen @ + .addr space
1335: ." DP: " r> >rdp @ .addr
1.52 jwilke 1336: REPEAT drop
1.53 jwilke 1337: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 1338: cr ." Mirrored:"
1339: mirrored-link @
1340: BEGIN dup
1.67 jwilke 1341: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 1342: REPEAT drop cr
1343: ;
1344:
1345: \ -------- predefined regions
1346:
1347: 0 0 region address-space
1348: \ total memory addressed and used by the target system
1349:
1350: 0 0 region dictionary
1351: \ rom area for the compiler
1352:
1.53 jwilke 1353: T has? rom H
1.52 jwilke 1354: [IF]
1355: 0 0 region ram-dictionary mirrored
1356: \ ram area for the compiler
1357: [ELSE]
1358: ' dictionary ALIAS ram-dictionary
1359: [THEN]
1360:
1361: 0 0 region return-stack
1362:
1363: 0 0 region data-stack
1364:
1365: 0 0 region tib-region
1366:
1367: ' dictionary ALIAS rom-dictionary
1368:
1369:
1.105 jwilke 1370: : setup-target ( -- ) \G initialize target's memory space
1.53 jwilke 1371: s" rom" T $has? H
1.52 jwilke 1372: IF \ check for ram and rom...
1.72 jwilke 1373: \ address-space area nip 0<>
1.67 jwilke 1374: ram-dictionary area nip 0<>
1375: rom-dictionary area nip 0<>
1.72 jwilke 1376: and 0=
1.52 jwilke 1377: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1378: THEN
1379: address-space area nip
1380: IF
1381: address-space area
1382: ELSE
1383: dictionary area
1384: THEN
1.67 jwilke 1385: nip 0=
1.52 jwilke 1386: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 1387:
1388: \ allocate target for each region
1389: region-link
1390: BEGIN @ dup
1391: WHILE dup
1392: 0 >rlink - >r
1393: r@ >rlen @
1394: IF \ allocate mem
1.103 jwilke 1395: r@ >rlen @ allocatetarget dup image !
1.67 jwilke 1396: r@ >rmem !
1397:
1.103 jwilke 1398: r@ >rlen @
1.67 jwilke 1399: target>bitmask-size allocatetarget
1.72 jwilke 1400: dup bit$ !
1.103 jwilke 1401: r@ >rbm !
1.67 jwilke 1402:
1.103 jwilke 1403: r@ >rlen @
1404: tcell / 1+ cells allocatetarget r@ >rtype !
1405:
1406: rdrop
1.67 jwilke 1407: ELSE r> drop THEN
1.72 jwilke 1408: REPEAT drop ;
1409:
1.105 jwilke 1410: \ MakeKernel 22feb99jaw
1.72 jwilke 1411:
1.113 jwilke 1412: : makekernel ( targetsize -- )
1413: \G convenience word to setup the memory of the target
1414: \G used by main.fs of the c-engine based systems
1415: 100 swap dictionary (region)
1416: setup-target ;
1.72 jwilke 1417:
1418: >MINIMAL
1419: : makekernel makekernel ;
1420: >CROSS
1.52 jwilke 1421:
1.54 pazsan 1422: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1423:
1424: \ second value is here to store some maximal value for statistics
1425: \ tempdp is also embedded here but has nothing to do with rom support
1426: \ (needs switched dp)
1427:
1428: variable tempdp 0 , \ temporary dp for resolving
1429: variable tempdp-save
1430:
1431: 0 [IF]
1432: variable romdp 0 , \ Dictionary-Pointer for ramarea
1433: variable ramdp 0 , \ Dictionary-Pointer for romarea
1434:
1435: \
1436: variable sramdp \ start of ram-area for forth
1437: variable sromdp \ start of rom-area for forth
1438:
1439: [THEN]
1440:
1.123 jwilke 1441: 0 Value current-region
1442: 0 Value tdp
1443: Variable fixed \ flag: true: no automatic switching
1.52 jwilke 1444: \ false: switching is done automatically
1445:
1446: \ Switch-Policy:
1447: \
1448: \ a header is always compiled into rom
1449: \ after a created word (create and variable) compilation goes to ram
1450: \
1451: \ Be careful: If you want to make the data behind create into rom
1452: \ you have to put >rom before create!
1453:
1454: variable constflag constflag off
1455:
1.67 jwilke 1456: : activate ( region -- )
1457: \G next code goes to this region
1.123 jwilke 1458: dup to current-region >rdp to tdp ;
1.67 jwilke 1459:
1.52 jwilke 1460: : (switchram)
1.53 jwilke 1461: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1462: ram-dictionary activate ;
1.52 jwilke 1463:
1464: : switchram
1465: constflag @
1466: IF constflag off ELSE (switchram) THEN ;
1467:
1468: : switchrom
1.67 jwilke 1469: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1470:
1471: : >tempdp ( addr -- )
1472: tdp tempdp-save ! tempdp to tdp tdp ! ;
1473: : tempdp> ( -- )
1474: tempdp-save @ to tdp ;
1475:
1476: : >ram fixed off (switchram) fixed on ;
1477: : >rom fixed off switchrom fixed on ;
1478: : >auto fixed off switchrom ;
1479:
1480:
1481:
1482: \ : romstart dup sromdp ! romdp ! ;
1483: \ : ramstart dup sramdp ! ramdp ! ;
1484:
1.67 jwilke 1485: \ default compilation goes to rom
1.52 jwilke 1486: \ when romable support is off, only the rom switch is used (!!)
1487: >auto
1488:
1.48 anton 1489: : there tdp @ ;
1490:
1.52 jwilke 1491: >TARGET
1.48 anton 1492:
1.52 jwilke 1493: \ \ Target Memory Handling
1.1 anton 1494:
1495: \ Byte ordering and cell size 06oct92py
1496:
1.19 pazsan 1497: : cell+ tcell + ;
1498: : cells tcell<< lshift ;
1.71 jwilke 1499: : chars tchar * ;
1500: : char+ tchar + ;
1.19 pazsan 1501: : floats tfloat * ;
1.6 anton 1502:
1.1 anton 1503: >CROSS
1.19 pazsan 1504: : cell/ tcell<< rshift ;
1.1 anton 1505: >TARGET
1506: 20 CONSTANT bl
1.52 jwilke 1507: \ TNIL Constant NIL
1.1 anton 1508:
1509: >CROSS
1510:
1.20 pazsan 1511: bigendian
1512: [IF]
1.106 jwilke 1513: : DS! ( d addr -- ) tcell bounds swap 1-
1.20 pazsan 1514: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.106 jwilke 1515: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1516: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1.57 pazsan 1517: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1518: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1519: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1520: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1521: [ELSE]
1.106 jwilke 1522: : DS! ( d addr -- ) tcell bounds
1.20 pazsan 1523: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.106 jwilke 1524: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1525: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1.57 pazsan 1526: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1527: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1528: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1529: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1530: [THEN]
1531:
1.106 jwilke 1532: : S! ( n addr -- ) >r s>d r> DS! ;
1533: : S@ ( addr -- n ) DS@ d>s ;
1534:
1.67 jwilke 1535: : taddr>region ( taddr -- region | 0 )
1536: \G finds for a target-address the correct region
1537: \G returns 0 if taddr is not in range of a target memory region
1538: region-link
1539: BEGIN @ dup
1540: WHILE dup >r
1541: 0 >rlink - >r
1542: r@ >rlen @
1543: IF dup r@ borders within
1544: IF r> r> drop nip EXIT THEN
1545: THEN
1546: r> drop
1547: r>
1548: REPEAT
1549: 2drop 0 ;
1550:
1.103 jwilke 1551: : taddr>region-abort ( taddr -- region | 0 )
1.122 jwilke 1552: \G Same as taddr>region but aborts if taddr is not
1553: \G a valid address in the target address space
1.103 jwilke 1554: dup taddr>region dup 0=
1555: IF drop cr ." Wrong address: " .addr
1556: -1 ABORT" Address out of range!"
1557: THEN nip ;
1558:
1.67 jwilke 1559: : (>regionimage) ( taddr -- 'taddr )
1560: dup
1561: \ find region we want to address
1.103 jwilke 1562: taddr>region-abort
1.67 jwilke 1563: >r
1564: \ calculate offset in region
1565: r@ >rstart @ -
1566: \ add regions real address in our memory
1567: r> >rmem @ + ;
1568:
1.124 ! jwilke 1569: : (>regionramimage) ( taddr -- 'taddr )
! 1570: \G same as (>regionimage) but aborts if the region is rom
! 1571: dup
! 1572: \ find region we want to address
! 1573: taddr>region-abort
! 1574: >r
! 1575: r@ >rrom @ ABORT" CROSS: region is write-protected!"
! 1576: \ calculate offset in region
! 1577: r@ >rstart @ -
! 1578: \ add regions real address in our memory
! 1579: r> >rmem @ + ;
! 1580:
1.103 jwilke 1581: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1582: dup
1583: \ find region we want to address
1584: taddr>region-abort
1585: >r
1586: \ calculate offset in region
1587: r@ >rstart @ -
1588: \ add regions real address in our memory
1589: r> >rbm @ ;
1590:
1591: : (>regiontype) ( taddr -- 'taddr )
1592: dup
1593: \ find region we want to address
1594: taddr>region-abort
1595: >r
1596: \ calculate offset in region
1597: r@ >rstart @ - tcell / cells
1598: \ add regions real address in our memory
1599: r> >rtype @ + ;
1600:
1.1 anton 1601: \ Bit string manipulation 06oct92py
1602: \ 9may93jaw
1603: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1604: : bits ( n -- n ) chars Bittable + c@ ;
1605:
1606: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1607: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1608: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1609:
1.103 jwilke 1610: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1611:
1.84 jwilke 1612: : (relon) ( taddr -- )
1613: [ [IFDEF] fd-relocation-table ]
1614: s" +" fd-relocation-table write-file throw
1615: dup s>d <# #s #> fd-relocation-table write-line throw
1616: [ [THEN] ]
1.103 jwilke 1617: (>regionbm) swap cell/ +bit ;
1.84 jwilke 1618:
1619: : (reloff) ( taddr -- )
1620: [ [IFDEF] fd-relocation-table ]
1621: s" -" fd-relocation-table write-file throw
1622: dup s>d <# #s #> fd-relocation-table write-line throw
1623: [ [THEN] ]
1.103 jwilke 1624: (>regionbm) swap cell/ -bit ;
1.67 jwilke 1625:
1626: : (>image) ( taddr -- absaddr ) image @ + ;
1627:
1628: DEFER >image
1.124 ! jwilke 1629: DEFER >ramimage
1.67 jwilke 1630: DEFER relon
1631: DEFER reloff
1632: DEFER correcter
1633:
1634: T has? relocate H
1635: [IF]
1636: ' (relon) IS relon
1637: ' (reloff) IS reloff
1.103 jwilke 1638: ' (>regionimage) IS >image
1.124 ! jwilke 1639: ' (>regionimage) IS >ramimage
1.67 jwilke 1640: [ELSE]
1641: ' drop IS relon
1642: ' drop IS reloff
1.68 jwilke 1643: ' (>regionimage) IS >image
1.124 ! jwilke 1644: ' (>regionimage) IS >ramimage
1.67 jwilke 1645: [THEN]
1.1 anton 1646:
1.124 ! jwilke 1647: : enforce-writeprotection ( -- )
! 1648: ['] (>regionramimage) IS >ramimage ;
! 1649:
! 1650: : relax-writeprotection ( -- )
! 1651: ['] (>regionimage) IS >ramimage ;
! 1652:
! 1653: : writeprotection-relaxed? ( -- )
! 1654: ['] >ramimage >body @ ['] (>regionimage) = ;
! 1655:
1.1 anton 1656: \ Target memory access 06oct92py
1657:
1658: : align+ ( taddr -- rest )
1.48 anton 1659: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1660: : cfalign+ ( taddr -- rest )
1.39 pazsan 1661: \ see kernel.fs:cfaligned
1.43 pazsan 1662: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1663:
1664: >TARGET
1665: : aligned ( taddr -- ta-addr ) dup align+ + ;
1666: \ assumes cell alignment granularity (as GNU C)
1667:
1.22 anton 1668: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1669: \ see kernel.fs
1.22 anton 1670: dup cfalign+ + ;
1671:
1.52 jwilke 1672: : @ ( taddr -- w ) >image S@ ;
1.124 ! jwilke 1673: : ! ( w taddr -- ) >ramimage S! ;
1.57 pazsan 1674: : c@ ( taddr -- char ) >image Sc@ ;
1.124 ! jwilke 1675: : c! ( char taddr -- ) >ramimage Sc! ;
1.7 anton 1676: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1677: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1678:
1679: \ Target compilation primitives 06oct92py
1680: \ included A! 16may93jaw
1681:
1682: : here ( -- there ) there ;
1683: : allot ( n -- ) tdp +! ;
1.78 jwilke 1684: : , ( w -- ) T here H tcell T allot ! H ;
1685: : c, ( char -- ) T here H tchar T allot c! H ;
1686: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1687: : cfalign ( -- )
1.78 jwilke 1688: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1689:
1.71 jwilke 1690: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1691: : A! swap >address swap dup relon T ! H ;
1692: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1693:
1.118 pazsan 1694: \ high-level ghosts
1695:
1696: >CROSS
1697:
1698: Ghost (do) Ghost (?do) 2drop
1699: Ghost (for) drop
1700: Ghost (loop) Ghost (+loop) 2drop
1701: Ghost (next) drop
1702: Ghost (does>) Ghost (compile) 2drop
1703: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1704: Ghost (C") drop
1705: Ghost ' drop
1706:
1707: \ user ghosts
1708:
1709: Ghost state drop
1.103 jwilke 1710:
1711: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1712:
1713:
1714: >CROSS
1715:
1.107 jwilke 1716: : TD! >image DS! ;
1717: : TD@ >image DS@ ;
1718:
1.103 jwilke 1719: : th-count ( taddr -- host-addr len )
1720: \G returns host address of target string
1721: assert1( tbyte 1 = )
1722: dup X c@ swap X char+ >image swap ;
1723:
1724: : ht-move ( haddr taddr len -- )
1725: \G moves data from host-addr to destination in target-addr
1726: \G character by character
1727: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1728:
1729: 2Variable last-string
1730:
1731: : ht-string, ( addr count -- )
1732: dup there swap last-string 2!
1733: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1734:
1735: >TARGET
1736:
1737: : count dup X c@ swap X char+ swap ;
1.110 jwilke 1738:
1739: : on -1 -1 rot TD! ;
1.103 jwilke 1740: : off T 0 swap ! H ;
1.1 anton 1741:
1.107 jwilke 1742: : tcmove ( source dest len -- )
1743: \G cmove in target memory
1744: tchar * bounds
1745: ?DO dup T c@ H I T c! H 1+
1746: tchar +LOOP drop ;
1747:
1748: : td, ( d -- )
1749: \G Store a host value as one cell into the target
1750: there tcell X allot TD! ;
1751:
1752: \ \ Load Assembler
1753:
1754: >TARGET
1755: H also Forth definitions
1756:
1757: \ FIXME: should we include the assembler really in the forth
1758: \ dictionary?!?!?!? This conflicts with the existing assembler
1759: \ of the host forth system!!
1760: [IFDEF] asm-include asm-include [THEN] hex
1761:
1762: previous
1763:
1764:
1.52 jwilke 1765: >CROSS
1766:
1.103 jwilke 1767: : (cc) T a, H ; ' (cc) plugin-of colon,
1.105 jwilke 1768: : (prim) T a, H ; ' (prim) plugin-of prim,
1.52 jwilke 1769:
1.118 pazsan 1770: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve
1.103 jwilke 1771: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1.54 pazsan 1772: : (dr) ( ghost res-pnt target-addr addr )
1773: >tempdp drop over
1774: dup >magic @ <do:> =
1775: IF doer,
1776: ELSE dodoes,
1777: THEN
1.103 jwilke 1778: tempdp> ; ' (dr) plugin-of doer-resolve
1.54 pazsan 1779:
1780: : (cm) ( -- addr )
1.121 jwilke 1781: there -1 colon, ; ' (cm) plugin-of colonmark,
1.1 anton 1782:
1.52 jwilke 1783: >TARGET
1.105 jwilke 1784: : compile, ( xt -- )
1.107 jwilke 1785: dup xt>ghost >comp @ EXECUTE ;
1.52 jwilke 1786: >CROSS
1.1 anton 1787:
1.102 jwilke 1788: \ resolve structure
1789:
1790: : >next ; \ link to next field
1791: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1792: : >taddr cell+ cell+ ;
1793: : >ghost 3 cells + ;
1794: : >file 4 cells + ;
1795: : >line 5 cells + ;
1796:
1797: : (refered) ( ghost addr tag -- )
1798: \G creates a reference to ghost at address taddr
1.103 jwilke 1799: >space
1800: rot >link linked
1.102 jwilke 1801: ( taddr tag ) ,
1802: ( taddr ) ,
1803: last-header-ghost @ ,
1804: loadfile ,
1805: sourceline# ,
1.103 jwilke 1806: space>
1.118 pazsan 1807: ;
1808:
1.52 jwilke 1809: : refered ( ghost tag -- )
1.53 jwilke 1810: \G creates a resolve structure
1.54 pazsan 1811: T here aligned H swap (refered)
1812: ;
1813:
1814: : killref ( addr ghost -- )
1815: \G kills a forward reference to ghost at position addr
1816: \G this is used to eleminate a :dovar refence after making a DOES>
1817: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1818: swap >r >link
1819: BEGIN dup @ dup ( addr last this )
1820: WHILE dup >taddr @ r@ =
1821: IF @ over !
1822: ELSE nip THEN
1823: REPEAT rdrop 2drop
1.53 jwilke 1824: ;
1.48 anton 1825:
1.52 jwilke 1826: Defer resolve-warning
1.1 anton 1827:
1.52 jwilke 1828: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1829: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1830:
1.52 jwilke 1831: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1832: over warnhead .ghost dup ." is referenced in "
1833: >ghost @ .ghost ;
1.1 anton 1834:
1.52 jwilke 1835: \ ' reswarn-test IS resolve-warning
1836:
1.1 anton 1837: \ resolve 14oct92py
1838:
1.54 pazsan 1839: : resolve-loop ( ghost resolve-list tcfa -- )
1840: >r
1841: BEGIN dup WHILE
1842: \ dup >tag @ 2 = IF reswarn-forward THEN
1843: resolve-warning
1844: r@ over >taddr @
1845: 2 pick >tag @
1846: CASE 0 OF colon-resolve ENDOF
1847: 1 OF addr-resolve ENDOF
1848: 2 OF doer-resolve ENDOF
1849: ENDCASE
1850: @ \ next list element
1851: REPEAT 2drop rdrop
1852: ;
1.52 jwilke 1853:
1854: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1855: \ >r dup >link @
1856: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1857:
1858: \ exists 9may93jaw
1859:
1.103 jwilke 1860: : exists ( ghost tcfa -- )
1861: \G print warning and set new target link in ghost
1862: swap exists-warning
1863: >link ! ;
1.52 jwilke 1864:
1.105 jwilke 1865: : colon-resolved ( ghost -- )
1.121 jwilke 1866: \ compiles a call to a colon definition,
1867: \ compile action for >comp field
1868: >link @ colon, ;
1.105 jwilke 1869:
1870: : prim-resolved ( ghost -- )
1.121 jwilke 1871: \ compiles a call to a primitive
1.105 jwilke 1872: >link @ prim, ;
1873:
1.121 jwilke 1874: : (is-forward) ( ghost -- )
1875: colonmark, 0 (refered) ; \ compile space for call
1876: ' (is-forward) IS is-forward
1877:
1.118 pazsan 1878: 0 Value resolved
1.1 anton 1879:
1.122 jwilke 1880: : resolve-forward-references ( ghost resolve-list -- )
1881: \ loop through forward referencies
1882: comp-state @ >r Resolving comp-state !
1883: over >link @ resolve-loop
1884: r> comp-state !
1885:
1886: ['] noop IS resolve-warning ;
1887:
1888:
1889: : (resolve) ( ghost tcfa -- ghost resolve-list )
1890: \ check for a valid address, it is a primitive reference
1891: \ otherwise
1.103 jwilke 1892: dup taddr>region 0<> IF
1.122 jwilke 1893: \ define this address in the region address type table
1.103 jwilke 1894: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1895: \ we define new address only if empty
1.105 jwilke 1896: \ this is for not to take over the alias ghost
1897: \ (different ghost, but identical xt)
1.103 jwilke 1898: \ but the very first that really defines it
1899: dup @ 0= IF ! ELSE 2drop THEN
1900: THEN
1.122 jwilke 1901: swap >r
1.118 pazsan 1902: r@ to resolved
1.121 jwilke 1903:
1904: \ r@ >comp @ ['] is-forward =
1905: \ ABORT" >comp action not set on a resolved ghost"
1906:
1907: \ copmile action defaults to colon-resolved
1908: \ if this is not right something must be set before
1909: \ calling resolve
1910: r@ >comp @ ['] is-forward = IF
1.122 jwilke 1911: ['] colon-resolved r@ >comp !
1912: THEN
1913: r@ >link @ swap \ ( list tcfa R: ghost )
1914: \ mark ghost as resolved
1915: r@ >link ! <res> r@ >magic !
1916: r> swap ;
1.54 pazsan 1917:
1.122 jwilke 1918: : resolve ( ghost tcfa -- )
1919: \G resolve referencies to ghost with tcfa
1920: \ is ghost resolved?, second resolve means another
1921: \ definition with the same name
1922: over undefined? 0= IF exists EXIT THEN
1923: (resolve)
1924: ( ghost resolve-list )
1925: resolve-forward-references ;
1926:
1927: : resolve-noforwards ( ghost tcfa -- )
1928: \G Same as resolve but complain if there are any
1929: \G forward references on this ghost
1930: \ is ghost resolved?, second resolve means another
1931: \ definition with the same name
1932: over undefined? 0= IF exists EXIT THEN
1933: (resolve)
1934: IF cr ." No forward references allowed on: " .ghost cr
1935: -1 ABORT" Illegal forward reference"
1936: THEN
1937: drop ;
1.1 anton 1938:
1939: \ gexecute ghost, 01nov92py
1940:
1.103 jwilke 1941: : (gexecute) ( ghost -- )
1.105 jwilke 1942: dup >comp @ EXECUTE ;
1.103 jwilke 1943:
1944: : gexecute ( ghost -- )
1.120 jwilke 1945: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1.103 jwilke 1946: (gexecute) ;
1.52 jwilke 1947:
1948: : addr, ( ghost -- )
1.105 jwilke 1949: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52 jwilke 1950:
1.1 anton 1951: \ .unresolved 11may93jaw
1952:
1953: variable ResolveFlag
1954:
1955: \ ?touched 11may93jaw
1956:
1.52 jwilke 1957: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1958: 0 <> and ;
1959:
1.53 jwilke 1960: : .forwarddefs ( ghost -- )
1.103 jwilke 1961: ." appeared in:"
1962: >link
1963: BEGIN @ dup
1964: WHILE cr 5 spaces
1965: dup >ghost @ .ghost
1966: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1967: ." line " dup >line @ .dec
1968: REPEAT
1969: drop ;
1970:
1971: : ?resolved ( ghost -- )
1972: dup ?touched
1973: IF ResolveFlag on
1974: dup cr .ghost .forwarddefs
1.53 jwilke 1975: ELSE drop
1976: THEN ;
1.1 anton 1977:
1978: : .unresolved ( -- )
1979: ResolveFlag off cr ." Unresolved: "
1.103 jwilke 1980: ghost-list
1.1 anton 1981: BEGIN @ dup
1982: WHILE dup ?resolved
1.10 anton 1983: REPEAT drop ResolveFlag @
1984: IF
1.48 anton 1985: -1 abort" Unresolved words!"
1.10 anton 1986: ELSE
1987: ." Nothing!"
1988: THEN
1989: cr ;
1.1 anton 1990:
1.52 jwilke 1991: : .stats
1992: base @ >r decimal
1993: cr ." named Headers: " headers-named @ .
1994: r> base ! ;
1995:
1.79 jwilke 1996: >MINIMAL
1997:
1998: : .unresolved .unresolved ;
1999:
1.1 anton 2000: >CROSS
2001: \ Header states 12dec92py
2002:
1.102 jwilke 2003: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1.90 pazsan 2004: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
2005: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 2006:
2007: VARIABLE ^imm
2008:
1.105 jwilke 2009: \ !! should be target wordsize specific
2010: $80 constant alias-mask
2011: $40 constant immediate-mask
2012: $20 constant restrict-mask
2013:
1.1 anton 2014: >TARGET
1.105 jwilke 2015: : immediate immediate-mask flag!
1.18 pazsan 2016: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 2017: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
2018: <imm> ^imm @ ! ;
1.105 jwilke 2019: : restrict restrict-mask flag! ;
1.52 jwilke 2020:
1.54 pazsan 2021: : isdoer
2022: \G define a forth word as doer, this makes obviously only sence on
2023: \G forth processors such as the PSC1000
2024: <do:> last-header-ghost @ >magic ! ;
1.1 anton 2025: >CROSS
2026:
2027: \ Target Header Creation 01nov92py
2028:
1.103 jwilke 2029: : ht-lstring, ( addr count -- )
1.102 jwilke 2030: dup T , H bounds ?DO I c@ T c, H LOOP ;
2031:
1.103 jwilke 2032: >TARGET
2033: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1.1 anton 2034: : view, ( -- ) ( dummy ) ;
1.52 jwilke 2035: >CROSS
1.1 anton 2036:
1.25 pazsan 2037: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
2038:
1.55 pazsan 2039: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 2040: \ contains the file-id of the documentation file
2041:
1.40 pazsan 2042: : T-\G ( -- )
1.25 pazsan 2043: source >in @ /string doc-file-id write-line throw
1.40 pazsan 2044: postpone \ ;
1.25 pazsan 2045:
1.39 pazsan 2046: Variable to-doc to-doc on
1.25 pazsan 2047:
2048: : cross-doc-entry ( -- )
2049: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
2050: IF
2051: s" " doc-file-id write-line throw
2052: s" make-doc " doc-file-id write-file throw
1.102 jwilke 2053:
1.105 jwilke 2054: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1.25 pazsan 2055: >in @
2056: [char] ( parse 2drop
2057: [char] ) parse doc-file-id write-file throw
2058: s" )" doc-file-id write-file throw
2059: [char] \ parse 2drop
1.40 pazsan 2060: T-\G
1.25 pazsan 2061: >in !
1.39 pazsan 2062: THEN ;
1.25 pazsan 2063:
1.28 pazsan 2064: \ Target TAGS creation
2065:
1.39 pazsan 2066: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.116 pazsan 2067: s" kernel.tags" r/w create-file throw value vi-tag-file-id
1.28 pazsan 2068: \ contains the file-id of the tags file
2069:
2070: Create tag-beg 2 c, 7F c, bl c,
2071: Create tag-end 2 c, bl c, 01 c,
2072: Create tag-bof 1 c, 0C c,
1.116 pazsan 2073: Create tag-tab 1 c, 09 c,
1.28 pazsan 2074:
2075: 2variable last-loadfilename 0 0 last-loadfilename 2!
2076:
2077: : put-load-file-name ( -- )
1.77 jwilke 2078: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 2079: IF
2080: tag-bof count tag-file-id write-line throw
1.31 anton 2081: sourcefilename 2dup
1.28 pazsan 2082: tag-file-id write-file throw
2083: last-loadfilename 2!
2084: s" ,0" tag-file-id write-line throw
2085: THEN ;
2086:
1.116 pazsan 2087: : cross-gnu-tag-entry ( -- )
1.28 pazsan 2088: tlast @ 0<> \ not an anonymous (i.e. noname) header
2089: IF
2090: put-load-file-name
2091: source >in @ min tag-file-id write-file throw
2092: tag-beg count tag-file-id write-file throw
1.116 pazsan 2093: Last-Header-Ghost @ >ghostname tag-file-id write-file throw
1.28 pazsan 2094: tag-end count tag-file-id write-file throw
1.31 anton 2095: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 2096: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
2097: s" ,0" tag-file-id write-line throw
2098: base !
2099: THEN ;
1.116 pazsan 2100:
2101: : cross-vi-tag-entry ( -- )
2102: tlast @ 0<> \ not an anonymous (i.e. noname) header
2103: IF
2104: sourcefilename vi-tag-file-id write-file throw
2105: tag-tab count vi-tag-file-id write-file throw
2106: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2107: tag-tab count vi-tag-file-id write-file throw
2108: s" /^" vi-tag-file-id write-file throw
2109: source vi-tag-file-id write-file throw
2110: s" $/" vi-tag-file-id write-line throw
2111: THEN ;
2112:
2113: : cross-tag-entry ( -- )
2114: cross-gnu-tag-entry
2115: cross-vi-tag-entry ;
1.28 pazsan 2116:
1.43 pazsan 2117: \ Check for words
2118:
2119: Defer skip? ' false IS skip?
2120:
1.103 jwilke 2121: : skipdef ( "name" -- )
1.79 jwilke 2122: \G skip definition of an undefined word in undef-words and
2123: \G all-words mode
1.103 jwilke 2124: Ghost dup forward?
1.75 jwilke 2125: IF >magic <skip> swap !
2126: ELSE drop THEN ;
2127:
1.103 jwilke 2128: : tdefined? ( "name" -- flag )
2129: Ghost undefined? 0= ;
1.75 jwilke 2130:
1.103 jwilke 2131: : defined2? ( "name" -- flag )
1.75 jwilke 2132: \G return true for anything else than forward, even for <skip>
2133: \G that's what we want
1.103 jwilke 2134: Ghost forward? 0= ;
1.43 pazsan 2135:
1.103 jwilke 2136: : forced? ( "name" -- flag )
1.79 jwilke 2137: \G return ture if it is a foreced skip with defskip
1.103 jwilke 2138: Ghost >magic @ <skip> = ;
1.79 jwilke 2139:
1.43 pazsan 2140: : needed? ( -- flag ) \ name
1.48 anton 2141: \G returns a false flag when
2142: \G a word is not defined
2143: \G a forward reference exists
2144: \G so the definition is not skipped!
2145: bl word gfind
1.75 jwilke 2146: IF dup undefined?
1.48 anton 2147: nip
2148: 0=
2149: ELSE drop true THEN ;
1.43 pazsan 2150:
1.44 pazsan 2151: : doer? ( -- flag ) \ name
1.103 jwilke 2152: Ghost >magic @ <do:> = ;
1.44 pazsan 2153:
1.43 pazsan 2154: : skip-defs ( -- )
2155: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2156:
1.28 pazsan 2157: \ Target header creation
2158:
1.54 pazsan 2159: Variable NoHeaderFlag
2160: NoHeaderFlag off
1.1 anton 2161:
1.54 pazsan 2162: : 0.r ( n1 n2 -- )
2163: base @ >r hex
2164: 0 swap <# 0 ?DO # LOOP #> type
2165: r> base ! ;
1.84 jwilke 2166:
2167: : .sym ( adr len -- )
2168: \G escapes / and \ to produce sed output
1.52 jwilke 2169: bounds
2170: DO I c@ dup
1.77 jwilke 2171: CASE [char] / OF drop ." \/" ENDOF
2172: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 2173: dup OF emit ENDOF
2174: ENDCASE
1.54 pazsan 2175: LOOP ;
1.52 jwilke 2176:
1.103 jwilke 2177: Defer setup-execution-semantics
2178: 0 Value lastghost
2179:
2180: : (THeader ( "name" -- ghost )
1.54 pazsan 2181: \ >in @ bl word count type 2 spaces >in !
2182: \ wordheaders will always be compiled to rom
2183: switchrom
2184: \ build header in target
2185: NoHeaderFlag @
2186: IF NoHeaderFlag off
2187: ELSE
2188: T align H view,
1.78 jwilke 2189: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 2190: 1 headers-named +! \ Statistic
2191: >in @ T name, H >in !
2192: THEN
2193: T cfalign here H tlastcfa !
1.84 jwilke 2194: \ Old Symbol table sed-script
1.54 pazsan 2195: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.103 jwilke 2196: HeaderGhost
1.84 jwilke 2197: \ output symbol table to extra file
1.123 jwilke 2198: dup >ghostname there symentry
1.103 jwilke 2199: dup Last-Header-Ghost ! dup to lastghost
1.54 pazsan 2200: dup >magic ^imm ! \ a pointer for immediate
1.105 jwilke 2201: alias-mask flag!
1.103 jwilke 2202: cross-doc-entry cross-tag-entry
2203: setup-execution-semantics
2204: ;
1.1 anton 2205:
1.52 jwilke 2206: \ this is the resolver information from ":"
2207: \ resolving is done by ";"
1.103 jwilke 2208: Variable ;Resolve 1 cells allot
2209:
2210: : hereresolve ( ghost -- )
2211: there resolve 0 ;Resolve ! ;
1.1 anton 2212:
1.11 pazsan 2213: : Theader ( "name" -- ghost )
1.103 jwilke 2214: (THeader dup hereresolve ;
2215:
2216: Variable aprim-nr -20 aprim-nr !
2217:
2218: : copy-execution-semantics ( ghost-from ghost-dest -- )
2219: >r
2220: dup >exec @ r@ >exec !
1.117 pazsan 2221: dup >comp @ r@ >comp !
1.103 jwilke 2222: dup >exec2 @ r@ >exec2 !
2223: dup >exec-compile @ r@ >exec-compile !
2224: dup >ghost-xt @ r@ >ghost-xt !
2225: dup >created @ r@ >created !
2226: rdrop drop ;
1.1 anton 2227:
2228: >TARGET
1.103 jwilke 2229:
1.1 anton 2230: : Alias ( cfa -- ) \ name
1.103 jwilke 2231: >in @ skip? IF 2drop EXIT THEN >in !
2232: (THeader ( S xt ghost )
1.105 jwilke 2233: 2dup swap xt>ghost swap copy-execution-semantics
2234: over resolve T A, H alias-mask flag! ;
1.103 jwilke 2235:
2236: Variable last-prim-ghost
2237: 0 last-prim-ghost !
2238:
2239: : asmprimname, ( ghost -- : name )
2240: dup last-prim-ghost !
2241: >r
2242: here bl word count string, r@ >asm-name !
2243: aprim-nr @ r> >asm-dummyaddr ! ;
2244:
2245: Defer setup-prim-semantics
2246:
1.112 jwilke 2247: : mapprim ( "forthname" "asmlabel" -- )
1.103 jwilke 2248: THeader -1 aprim-nr +! aprim-nr @ T A, H
2249: asmprimname,
2250: setup-prim-semantics ;
2251:
1.112 jwilke 2252: : mapprim: ( "forthname" "asmlabel" -- )
1.103 jwilke 2253: -1 aprim-nr +! aprim-nr @
1.122 jwilke 2254: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
1.103 jwilke 2255: asmprimname, ;
2256:
1.119 pazsan 2257: : Doer: ( cfa -- ) \ name
1.103 jwilke 2258: >in @ skip? IF 2drop EXIT THEN >in !
2259: dup 0< s" prims" T $has? H 0= and
2260: IF
2261: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2262: THEN
1.119 pazsan 2263: Ghost
1.122 jwilke 2264: tuck swap resolve-noforwards <do:> swap >magic ! ;
1.64 pazsan 2265:
2266: Variable prim#
2267: : first-primitive ( n -- ) prim# ! ;
2268: : Primitive ( -- ) \ name
1.117 pazsan 2269: >in @ skip? IF drop EXIT THEN >in !
2270: s" prims" T $has? H 0=
1.103 jwilke 2271: IF
2272: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2273: THEN
2274: prim# @ (THeader ( S xt ghost )
1.121 jwilke 2275: ['] prim-resolved over >comp !
1.105 jwilke 2276: dup >ghost-flags <primitive> set-flag
1.122 jwilke 2277: over resolve-noforwards T A, H alias-mask flag!
1.103 jwilke 2278: -1 prim# +! ;
1.1 anton 2279: >CROSS
2280:
2281: \ Conditionals and Comments 11may93jaw
2282:
1.103 jwilke 2283: \G saves the existing cond action, this is used for redefining in
2284: \G instant
2285: Variable cond-xt-old
2286:
2287: : cond-target ( -- )
2288: \G Compiles semantic of redefined cond into new one
2289: cond-xt-old @ compile, ; immediate restrict
2290:
1.1 anton 2291: : ;Cond
2292: postpone ;
2293: swap ! ; immediate
2294:
1.103 jwilke 2295: : Cond: ( "name" -- )
2296: \g defines a conditional or another word that must
2297: \g be executed directly while compiling
2298: \g these words have no interpretative semantics by default
2299: Ghost
2300: >exec-compile
2301: dup @ cond-xt-old !
1.1 anton 2302: :NONAME ;
2303:
2304:
2305: : Comment ( -- )
1.103 jwilke 2306: >in @ Ghost swap >in ! ' swap
2307: 2dup >exec-compile ! >exec ! ;
1.1 anton 2308:
2309: Comment ( Comment \
2310:
2311: \ compile 10may93jaw
2312:
1.103 jwilke 2313: : compile ( "name" -- ) \ name
1.115 jwilke 2314: findghost
1.103 jwilke 2315: dup >exec-compile @ ?dup
2316: IF nip compile,
2317: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2318:
1.52 jwilke 2319: >TARGET
2320:
1.105 jwilke 2321: : ' ( -- xt )
2322: \G returns the target-cfa of a ghost
1.52 jwilke 2323: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1.105 jwilke 2324: g>xt ;
1.52 jwilke 2325:
1.103 jwilke 2326: \ FIXME: this works for the current use cases, but is not
2327: \ in all cases correct ;-)
2328: : comp' X ' 0 ;
2329:
1.52 jwilke 2330: Cond: ['] T ' H alit, ;Cond
2331:
2332: >CROSS
2333:
2334: : [T']
2335: \ returns the target-cfa of a ghost, or compiles it as literal
1.115 jwilke 2336: postpone [G']
2337: state @ IF postpone g>xt ELSE g>xt THEN ; immediate
1.42 pazsan 2338:
1.52 jwilke 2339: \ \ threading modell 13dec92py
2340: \ modularized 14jun97jaw
2341:
1.106 jwilke 2342: T 2 cells H Value xt>body
1.52 jwilke 2343:
1.103 jwilke 2344: : (>body) ( cfa -- pfa )
1.105 jwilke 2345: xt>body + ; ' (>body) plugin-of t>body
2346:
2347: : fillcfa ( usedcells -- )
1.106 jwilke 2348: T cells H xt>body swap -
1.105 jwilke 2349: assert1( dup 0 >= )
2350: 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 2351:
1.103 jwilke 2352: : (doer,) ( ghost -- )
1.105 jwilke 2353: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
1.52 jwilke 2354:
1.105 jwilke 2355: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
1.52 jwilke 2356:
1.121 jwilke 2357: ' NOOP plugin-of ca>native
2358:
1.52 jwilke 2359: : (doprim,) ( -- )
1.105 jwilke 2360: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
1.52 jwilke 2361:
2362: : (doeshandler,) ( -- )
1.119 pazsan 2363: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
1.52 jwilke 2364:
2365: : (dodoes,) ( does-action-ghost -- )
1.119 pazsan 2366: ]comp [G'] :dodoes addr, comp[
1.52 jwilke 2367: addr,
1.103 jwilke 2368: \ the relocator in the c engine, does not like the
2369: \ does-address to marked for relocation
2370: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
1.105 jwilke 2371: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
1.52 jwilke 2372:
1.107 jwilke 2373: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2374:
2375: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
1.52 jwilke 2376:
1.67 jwilke 2377: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 2378: \ this is just for convenience, so we don't have to define alit,
2379: \ seperately for embedded systems....
2380: T has? relocate H
1.67 jwilke 2381: [IF]
1.105 jwilke 2382: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
1.67 jwilke 2383: [ELSE]
1.105 jwilke 2384: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
1.67 jwilke 2385: [THEN]
1.52 jwilke 2386:
1.105 jwilke 2387: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
1.42 pazsan 2388:
1.43 pazsan 2389: [IFUNDEF] (code)
2390: Defer (code)
2391: Defer (end-code)
2392: [THEN]
2393:
1.1 anton 2394: >TARGET
1.43 pazsan 2395: : Code
1.52 jwilke 2396: defempty?
1.121 jwilke 2397: (THeader ( ghost )
2398: ['] prim-resolved over >comp !
1.122 jwilke 2399: there resolve-noforwards
1.121 jwilke 2400:
1.53 jwilke 2401: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 2402: doprim,
1.48 anton 2403: [THEN]
2404: depth (code) ;
1.43 pazsan 2405:
1.121 jwilke 2406: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
2407:
1.43 pazsan 2408: : Code:
1.52 jwilke 2409: defempty?
1.121 jwilke 2410: Ghost >r
1.123 jwilke 2411: r@ >ghostname there symentry
1.122 jwilke 2412: r@ there ca>native resolve-noforwards
1.121 jwilke 2413: <do:> r@ >magic !
2414: r> drop
1.43 pazsan 2415: depth (code) ;
2416:
2417: : end-code
1.52 jwilke 2418: (end-code)
1.43 pazsan 2419: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2420: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 2421: ;
1.14 anton 2422:
1.1 anton 2423: >CROSS
1.52 jwilke 2424:
1.1 anton 2425: \ tLiteral 12dec92py
2426:
2427: >TARGET
1.40 pazsan 2428: Cond: \G T-\G ;Cond
2429:
1.105 jwilke 2430: Cond: Literal ( n -- ) lit, ;Cond
1.103 jwilke 2431: Cond: ALiteral ( n -- ) alit, ;Cond
1.1 anton 2432:
2433: : Char ( "<char>" -- ) bl word char+ c@ ;
1.103 jwilke 2434: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2435:
1.104 jwilke 2436: tchar 1 = [IF]
1.110 jwilke 2437: Cond: chars ;Cond
1.104 jwilke 2438: [THEN]
1.1 anton 2439:
1.43 pazsan 2440: \ some special literals 27jan97jaw
2441:
1.52 jwilke 2442: \ !! Known Bug: Special Literals and plug-ins work only correct
1.102 jwilke 2443: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1.52 jwilke 2444:
1.107 jwilke 2445: \ This section could be done with dlit, now. But first I need
2446: \ some test code JAW
2447:
1.43 pazsan 2448: Cond: MAXU
1.102 jwilke 2449: tcell 1 cells u>
2450: IF compile lit tcell 0 ?DO FF T c, H LOOP
2451: ELSE ffffffff lit, THEN
1.52 jwilke 2452: ;Cond
1.43 pazsan 2453:
2454: Cond: MINI
1.102 jwilke 2455: tcell 1 cells u>
2456: IF compile lit bigendian
2457: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
2458: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
2459: THEN
2460: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52 jwilke 2461: ;Cond
1.43 pazsan 2462:
2463: Cond: MAXI
1.102 jwilke 2464: tcell 1 cells u>
2465: IF compile lit bigendian
2466: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
2467: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
2468: THEN
2469: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43 pazsan 2470: ;Cond
2471:
1.1 anton 2472: >CROSS
1.115 jwilke 2473:
1.1 anton 2474: \ Target compiling loop 12dec92py
2475: \ ">tib trick thrown out 10may93jaw
2476: \ number? defined at the top 11may93jaw
1.77 jwilke 2477: \ replaced >in by save-input
2478:
2479: : discard 0 ?DO drop LOOP ;
1.1 anton 2480:
2481: \ compiled word might leave items on stack!
1.77 jwilke 2482: : tcom ( x1 .. xn n name -- )
2483: \ dup count type space
1.103 jwilke 2484: gfind
2485: IF >r ( discard saved input state ) discard r>
2486: dup >exec-compile @ ?dup
2487: IF nip execute-exec-compile ELSE gexecute THEN
1.77 jwilke 2488: EXIT
2489: THEN
2490: number? dup
2491: IF 0> IF swap lit, THEN lit, discard
1.103 jwilke 2492: ELSE 2drop restore-input throw Ghost gexecute THEN ;
1.1 anton 2493:
2494: \ : ; DOES> 13dec92py
2495: \ ] 9may93py/jaw
2496:
1.115 jwilke 2497: >CROSS
2498:
1.105 jwilke 2499: : compiling-state ( -- )
2500: \G set states to compililng
1.54 pazsan 2501: Compiling comp-state !
1.103 jwilke 2502: \ if we have a state in target, change it with the compile state
1.105 jwilke 2503: [G'] state dup undefined? 0=
2504: IF >ghost-xt @ execute X on ELSE drop THEN ;
2505:
2506: : interpreting-state ( -- )
2507: \G set states to interpreting
2508: \ if target has a state variable, change it according to our state
2509: [G'] state dup undefined? 0=
2510: IF >ghost-xt @ execute X off ELSE drop THEN
2511: Interpreting comp-state ! ;
1.115 jwilke 2512:
2513: >TARGET
1.105 jwilke 2514:
2515: : ]
2516: compiling-state
1.1 anton 2517: BEGIN
1.77 jwilke 2518: BEGIN save-input bl word
2519: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 2520: ABORT" CROSS: End of file while target compiling"
2521: REPEAT
2522: tcom
1.103 jwilke 2523: compiling? 0=
1.1 anton 2524: UNTIL ;
2525:
2526: \ by the way: defining a second interpreter (a compiler-)loop
2527: \ is not allowed if a system should be ans conform
2528:
1.110 jwilke 2529: : (:) ( ghost -- )
2530: \ common factor of : and :noname. Prepare ;Resolve and start definition
2531: ;Resolve ! there ;Resolve cell+ !
2532: docol, ]comp colon-start depth T ] H ;
2533:
1.1 anton 2534: : : ( -- colon-sys ) \ Name
1.52 jwilke 2535: defempty?
2536: constflag off \ don't let this flag work over colon defs
2537: \ just to go sure nothing unwanted happens
1.43 pazsan 2538: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.110 jwilke 2539: (THeader (:) ;
1.1 anton 2540:
1.37 pazsan 2541: : :noname ( -- colon-sys )
1.110 jwilke 2542: X cfalign there
2543: \ define a nameless ghost
2544: here ghostheader dup last-header-ghost ! dup to lastghost
2545: (:) ;
1.37 pazsan 2546:
1.103 jwilke 2547: Cond: EXIT ( -- ) compile ;S ;Cond
1.6 anton 2548:
2549: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 2550:
1.52 jwilke 2551: >CROSS
2552: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2553: ;Resolve cell+ @ ;
2554:
2555: >TARGET
2556:
1.103 jwilke 2557: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52 jwilke 2558:
1.103 jwilke 2559: Cond: ; ( -- )
1.105 jwilke 2560: depth ?dup
2561: IF 1- <> ABORT" CROSS: Stack changed"
2562: ELSE true ABORT" CROSS: Stack empty"
2563: THEN
2564: colon-end
2565: fini,
2566: comp[
2567: ;Resolve @
1.118 pazsan 2568: IF ['] colon-resolved ;Resolve @ >comp !
2569: ;Resolve @ ;Resolve cell+ @ resolve
1.105 jwilke 2570: THEN
2571: interpreting-state
2572: ;Cond
2573:
2574: Cond: [ ( -- ) interpreting-state ;Cond
1.1 anton 2575:
2576: >CROSS
1.54 pazsan 2577:
1.117 pazsan 2578: 0 Value created
1.54 pazsan 2579:
1.52 jwilke 2580: : !does ( does-action -- )
1.54 pazsan 2581: tlastcfa @ [G'] :dovar killref
1.117 pazsan 2582: >space here >r ghostheader space>
1.121 jwilke 2583: ['] colon-resolved r@ >comp !
1.117 pazsan 2584: r@ created >do:ghost ! r@ swap resolve
2585: r> tlastcfa @ >tempdp dodoes, tempdp> ;
1.103 jwilke 2586:
2587: Defer instant-interpret-does>-hook
2588:
1.118 pazsan 2589: : does-resolved ( ghost -- )
2590: compile does-exec g>xt T a, H ;
2591:
1.103 jwilke 2592: : resolve-does>-part ( -- )
2593: \ resolve words made by builders
1.105 jwilke 2594: Last-Header-Ghost @ >do:ghost @ ?dup
1.117 pazsan 2595: IF there resolve THEN ;
1.103 jwilke 2596:
1.1 anton 2597: >TARGET
1.103 jwilke 2598: Cond: DOES>
2599: compile (does>) doeshandler,
2600: resolve-does>-part
1.1 anton 2601: ;Cond
1.103 jwilke 2602:
1.118 pazsan 2603: : DOES>
2604: ['] does-resolved created >comp !
2605: switchrom doeshandler, T here H !does
2606: instant-interpret-does>-hook
2607: depth T ] H ;
1.1 anton 2608:
2609: >CROSS
1.108 jwilke 2610: \ Creation 01nov92py
1.1 anton 2611:
2612: \ Builder 11may93jaw
2613:
1.108 jwilke 2614: 0 Value built
2615:
1.105 jwilke 2616: : Builder ( Create-xt do-ghost "name" -- )
1.52 jwilke 2617: \ builds up a builder in current vocabulary
2618: \ create-xt is executed when word is interpreted
1.106 jwilke 2619: \ do:-xt is executed when the created word from builder is executed
1.105 jwilke 2620: \ for do:-xt an additional entry after the normal ghost-entrys is used
1.52 jwilke 2621:
1.109 jwilke 2622: ghost to built
1.108 jwilke 2623: built >created @ 0= IF
2624: built >created on
2625: THEN ;
1.1 anton 2626:
1.52 jwilke 2627: : gdoes, ( ghost -- )
2628: \ makes the codefield for a word that is built
1.103 jwilke 2629: >do:ghost @ dup undefined? 0=
1.52 jwilke 2630: IF
1.42 pazsan 2631: dup >magic @ <do:> =
1.54 pazsan 2632: IF doer,
2633: ELSE dodoes,
2634: THEN
2635: EXIT
1.52 jwilke 2636: THEN
2637: \ compile :dodoes gexecute
2638: \ T here H tcell - reloff
1.54 pazsan 2639: 2 refered
2640: 0 fillcfa
2641: ;
1.1 anton 2642:
1.103 jwilke 2643: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
1.117 pazsan 2644: \g stores execution semantic and compilation semantic in the built word
2645: swap >do:ghost @ 2dup swap >do:ghost !
1.110 jwilke 2646: \ we use the >exec2 field for the semantic of a created word,
2647: \ using exec or exec2 makes no difference for normal cross-compilation
2648: \ but is usefull for instant where the exec field is already
2649: \ defined (e.g. Vocabularies)
1.105 jwilke 2650: 2dup >exec @ swap >exec2 !
2651: >comp @ swap >comp ! ;
1.103 jwilke 2652:
1.118 pazsan 2653: 0 Value createhere
2654:
2655: : create-resolve ( -- )
2656: created createhere resolve 0 ;Resolve ! ;
2657: : create-resolve-immediate ( -- )
2658: create-resolve T immediate H ;
2659:
1.52 jwilke 2660: : TCreate ( <name> -- )
2661: create-forward-warn
2662: IF ['] reswarn-forward IS resolve-warning THEN
1.103 jwilke 2663: executed-ghost @ (Theader
1.117 pazsan 2664: dup >created on dup to created
1.118 pazsan 2665: 2dup takeover-x-semantics
2666: there to createhere drop gdoes, ;
1.52 jwilke 2667:
2668: : RTCreate ( <name> -- )
2669: \ creates a new word with code-field in ram
2670: create-forward-warn
2671: IF ['] reswarn-forward IS resolve-warning THEN
2672: \ make Alias
1.103 jwilke 2673: executed-ghost @ (THeader
1.118 pazsan 2674: dup >created on dup to created
1.103 jwilke 2675: 2dup takeover-x-semantics
1.105 jwilke 2676: there 0 T a, H alias-mask flag!
1.103 jwilke 2677: \ store poiter to code-field
1.52 jwilke 2678: switchram T cfalign H
2679: there swap T ! H
2680: there tlastcfa !
1.118 pazsan 2681: there to createhere drop gdoes, ;
1.1 anton 2682:
2683: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2684: :noname postpone TCreate ;
2685:
2686: : BuildSmart: ( -- [xt] [colon-sys] )
2687: :noname
1.53 jwilke 2688: [ T has? rom H [IF] ]
1.52 jwilke 2689: postpone RTCreate
2690: [ [ELSE] ]
2691: postpone TCreate
2692: [ [THEN] ] ;
1.1 anton 2693:
1.108 jwilke 2694: : ;Build
1.118 pazsan 2695: postpone create-resolve postpone ; built >exec ! ; immediate
2696:
2697: : ;Build-immediate
2698: postpone create-resolve-immediate
2699: postpone ; built >exec ! ; immediate
1.108 jwilke 2700:
1.1 anton 2701: : gdoes> ( ghost -- addr flag )
1.110 jwilke 2702: executed-ghost @ g>body ;
1.1 anton 2703:
2704: \ DO: ;DO 11may93jaw
2705:
1.108 jwilke 2706: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2707: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2708:
2709: : DO: ( -- [xt] [colon-sys] )
2710: here ghostheader do:ghost!
1.110 jwilke 2711: :noname postpone gdoes> ;
1.1 anton 2712:
1.108 jwilke 2713: : by: ( -- [xt] [colon-sys] ) \ name
2714: Ghost do:ghost!
1.110 jwilke 2715: :noname postpone gdoes> ;
1.42 pazsan 2716:
1.108 jwilke 2717: : ;DO ( [xt] [colon-sys] -- )
2718: postpone ; doexec! ; immediate
1.1 anton 2719:
1.109 jwilke 2720: : by ( -- ) \ Name
1.108 jwilke 2721: Ghost >do:ghost @ do:ghost! ;
1.107 jwilke 2722:
1.109 jwilke 2723: : compile: ( --[xt] [colon-sys] )
1.107 jwilke 2724: \G defines a compile time action for created words
2725: \G by this builder
2726: :noname ;
2727:
1.109 jwilke 2728: : ;compile ( [xt] [colon-sys] -- )
2729: postpone ; built >do:ghost @ >comp ! ; immediate
1.107 jwilke 2730:
1.1 anton 2731: \ Variables and Constants 05dec92py
2732:
1.108 jwilke 2733: Builder (Constant)
2734: Build: ( n -- ) ;Build
1.103 jwilke 2735: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52 jwilke 2736:
1.108 jwilke 2737: Builder Constant
2738: Build: ( n -- ) T , H ;Build
1.52 jwilke 2739: by (Constant)
2740:
1.108 jwilke 2741: Builder AConstant
2742: Build: ( n -- ) T A, H ;Build
1.52 jwilke 2743: by (Constant)
2744:
1.108 jwilke 2745: Builder 2Constant
2746: Build: ( d -- ) T , , H ;Build
1.52 jwilke 2747: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2748:
1.108 jwilke 2749: Builder Create
2750: BuildSmart: ;Build
1.103 jwilke 2751: by: :dovar ( target-body-addr -- addr ) ;DO
1.1 anton 2752:
1.108 jwilke 2753: Builder Variable
1.53 jwilke 2754: T has? rom H [IF]
1.108 jwilke 2755: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
1.52 jwilke 2756: by (Constant)
2757: [ELSE]
1.108 jwilke 2758: Build: T 0 , H ;Build
1.1 anton 2759: by Create
1.52 jwilke 2760: [THEN]
1.1 anton 2761:
1.108 jwilke 2762: Builder 2Variable
1.53 jwilke 2763: T has? rom H [IF]
1.108 jwilke 2764: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
1.54 pazsan 2765: by (Constant)
2766: [ELSE]
1.108 jwilke 2767: Build: T 0 , 0 , H ;Build
1.54 pazsan 2768: by Create
2769: [THEN]
2770:
1.108 jwilke 2771: Builder AVariable
1.54 pazsan 2772: T has? rom H [IF]
1.108 jwilke 2773: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
1.52 jwilke 2774: by (Constant)
2775: [ELSE]
1.108 jwilke 2776: Build: T 0 A, H ;Build
1.1 anton 2777: by Create
1.52 jwilke 2778: [THEN]
1.1 anton 2779:
1.3 pazsan 2780: \ User variables 04may94py
2781:
2782: Variable tup 0 tup !
2783: Variable tudp 0 tudp !
1.78 jwilke 2784:
1.3 pazsan 2785: : u, ( n -- udp )
2786: tup @ tudp @ + T ! H
1.19 pazsan 2787: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2788:
1.3 pazsan 2789: : au, ( n -- udp )
2790: tup @ tudp @ + T A! H
1.19 pazsan 2791: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2792:
1.108 jwilke 2793: Builder User
2794: Build: 0 u, X , ;Build
1.78 jwilke 2795: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2796:
1.108 jwilke 2797: Builder 2User
2798: Build: 0 u, X , 0 u, drop ;Build
1.3 pazsan 2799: by User
1.1 anton 2800:
1.108 jwilke 2801: Builder AUser
2802: Build: 0 au, X , ;Build
1.3 pazsan 2803: by User
1.1 anton 2804:
1.108 jwilke 2805: Builder (Value)
2806: Build: ( n -- ) ;Build
2807: by: :docon ( target-body-addr -- n ) T @ H ;DO
2808:
1.1 anton 2809: Builder Value
1.108 jwilke 2810: BuildSmart: T , H ;Build
2811: by (Value)
1.1 anton 2812:
1.32 pazsan 2813: Builder AValue
1.108 jwilke 2814: BuildSmart: T A, H ;Build
2815: by (Value)
1.32 pazsan 2816:
1.103 jwilke 2817: Defer texecute
2818:
1.108 jwilke 2819: Builder Defer
2820: BuildSmart: ( -- ) [T'] noop T A, H ;Build
1.103 jwilke 2821: by: :dodefer ( ghost -- ) X @ texecute ;DO
1.37 pazsan 2822:
1.108 jwilke 2823: Builder interpret/compile:
1.118 pazsan 2824: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
1.37 pazsan 2825: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.24 pazsan 2826:
2827: \ Sturctures 23feb95py
2828:
2829: : nalign ( addr1 n -- addr2 )
2830: \ addr2 is the aligned version of addr1 wrt the alignment size n
2831: 1- tuck + swap invert and ;
1.109 jwilke 2832:
1.24 pazsan 2833:
1.108 jwilke 2834: Builder (Field)
2835: Build: ;Build
1.44 pazsan 2836: by: :dofield T @ H + ;DO
2837:
1.108 jwilke 2838: Builder Field
1.51 anton 2839: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2840: rot dup T , H ( align1 align size offset1 )
1.108 jwilke 2841: + >r nalign r> ;Build
1.44 pazsan 2842: by (Field)
1.24 pazsan 2843:
1.109 jwilke 2844: >TARGET
1.51 anton 2845: : struct T 1 chars 0 H ;
1.24 pazsan 2846: : end-struct T 2Constant H ;
2847:
1.52 jwilke 2848: : cell% ( n -- size align )
1.51 anton 2849: T 1 cells H dup ;
1.109 jwilke 2850: >CROSS
1.88 pazsan 2851:
1.105 jwilke 2852: \ Input-Methods 01py
1.103 jwilke 2853:
1.108 jwilke 2854: Builder input-method
2855: Build: ( m v -- m' v ) dup T , cell+ H ;Build
1.88 pazsan 2856: DO: abort" Not in cross mode" ;DO
2857:
1.108 jwilke 2858: Builder input-var
2859: Build: ( m v size -- m v' ) over T , H + ;Build
1.88 pazsan 2860: DO: abort" Not in cross mode" ;DO
1.24 pazsan 2861:
1.108 jwilke 2862: \ Peephole optimization 05sep01jaw
2863:
2864: \ this section defines different compilation
2865: \ actions for created words
2866: \ this will help the peephole optimizer
1.121 jwilke 2867: \ I (jaw) took this from bernds latest cross-compiler
1.108 jwilke 2868: \ changes but seperated it from the original
2869: \ Builder words. The final plan is to put this
2870: \ into a seperate file, together with the peephole
2871: \ optimizer for cross
2872:
2873:
2874: T has? peephole H [IF]
2875:
1.109 jwilke 2876: >CROSS
1.118 pazsan 2877:
1.109 jwilke 2878: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
1.121 jwilke 2879: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark,
1.118 pazsan 2880: : (call-res) >tempdp resolved gexecute tempdp> drop ;
2881: ' (call-res) plugin-of colon-resolve
1.121 jwilke 2882: : (pprim) dup 0< IF $4000 - ELSE
2883: cr ." wrong usage of (prim) "
2884: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
2885: T a, H ; ' (pprim) plugin-of prim,
1.109 jwilke 2886:
2887: \ if we want this, we have to spilt aconstant
2888: \ and constant!!
2889: \ Builder (Constant)
2890: \ compile: g>body X @ lit, ;compile
1.108 jwilke 2891:
2892: Builder (Constant)
1.118 pazsan 2893: compile: g>body compile lit@ T a, H ;compile
1.108 jwilke 2894:
2895: Builder (Value)
1.118 pazsan 2896: compile: g>body compile lit@ T a, H ;compile
1.108 jwilke 2897:
2898: \ this changes also Variable, AVariable and 2Variable
2899: Builder Create
1.117 pazsan 2900: compile: g>body alit, ;compile
1.108 jwilke 2901:
2902: Builder User
2903: compile: g>body compile useraddr T @ , H ;compile
2904:
2905: Builder Defer
1.118 pazsan 2906: compile: g>body compile lit-perform T A, H ;compile
1.102 jwilke 2907:
1.108 jwilke 2908: Builder (Field)
1.118 pazsan 2909: compile: g>body T @ H compile lit+ T , H ;compile
1.117 pazsan 2910:
2911: Builder interpret/compile:
2912: compile: does-resolved ;compile
2913:
2914: Builder input-method
2915: compile: does-resolved ;compile
2916:
2917: Builder input-var
2918: compile: does-resolved ;compile
1.102 jwilke 2919:
1.108 jwilke 2920: [THEN]
1.103 jwilke 2921:
1.52 jwilke 2922: \ structural conditionals 17dec92py
2923:
2924: >CROSS
1.103 jwilke 2925: : (ncontrols?) ( n -- )
2926: \g We expect n open control structures
2927: depth over u<=
2928: ABORT" CROSS: unstructured, stack underflow"
2929: 0 ?DO I pick 0=
2930: ABORT" CROSS: unstructured"
2931: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2932:
2933: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2934: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2935:
1.52 jwilke 2936: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2937:
1.78 jwilke 2938: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2939:
1.78 jwilke 2940: : >resolve ( sys -- )
2941: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52 jwilke 2942:
1.78 jwilke 2943: : <resolve ( sys -- )
2944: X here ( dup ." <" hex. ) branchoffset X , ;
1.52 jwilke 2945:
1.78 jwilke 2946: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2947: IS branch, ( target-addr -- )
1.78 jwilke 2948: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2949: IS ?branch, ( target-addr -- )
2950: :noname compile branch T here 0 , H ;
2951: IS branchmark, ( -- branchtoken )
2952: :noname compile ?branch T here 0 , H ;
2953: IS ?branchmark, ( -- branchtoken )
2954: :noname T here 0 , H ;
2955: IS ?domark, ( -- branchtoken )
1.78 jwilke 2956: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2957: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2958: :noname branchto, X here ;
1.54 pazsan 2959: IS branchtomark, ( -- target-addr )
1.52 jwilke 2960:
2961: >TARGET
2962:
2963: \ Structural Conditionals 12dec92py
2964:
1.103 jwilke 2965: \ CLEANUP Cond: BUT sys? swap ;Cond
2966: \ CLEANUP Cond: YET sys? dup ;Cond
1.52 jwilke 2967:
2968: >CROSS
2969:
1.78 jwilke 2970: Variable tleavings 0 tleavings !
1.52 jwilke 2971:
1.54 pazsan 2972: : (done) ( addr -- )
2973: tleavings @
2974: BEGIN dup
2975: WHILE
2976: >r dup r@ cell+ @ \ address of branch
2977: u> 0= \ lower than DO?
2978: WHILE
2979: r@ 2 cells + @ \ branch token
2980: branchtoresolve,
2981: r@ @ r> free throw
2982: REPEAT r> THEN
2983: tleavings ! drop ;
2984:
1.53 jwilke 2985: >TARGET
2986:
1.103 jwilke 2987: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
1.53 jwilke 2988:
2989: >CROSS
1.54 pazsan 2990: : (leave) ( branchtoken -- )
1.53 jwilke 2991: 3 cells allocate throw >r
2992: T here H r@ cell+ !
2993: r@ 2 cells + !
2994: tleavings @ r@ !
2995: r> tleavings ! ;
2996: >TARGET
2997:
1.103 jwilke 2998: : (leave,) ( -- )
2999: branchmark, (leave) ; ' (leave,) plugin-of leave,
3000:
3001: : (?leave,) ( -- )
3002: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
3003:
3004: Cond: LEAVE leave, ;Cond
3005: Cond: ?LEAVE ?leave, ;Cond
1.53 jwilke 3006:
1.54 pazsan 3007: >CROSS
3008: \ !!JW ToDo : Move to general tools section
3009:
3010: : to1 ( x1 x2 xn n -- addr )
1.103 jwilke 3011: \G packs n stack elements in am allocated memory region
1.54 pazsan 3012: dup dup 1+ cells allocate throw dup >r swap 1+
3013: 0 DO tuck ! cell+ LOOP
3014: drop r> ;
1.103 jwilke 3015:
1.54 pazsan 3016: : 1to ( addr -- x1 x2 xn )
3017: \G unpacks the elements saved by to1
3018: dup @ swap over cells + swap
3019: 0 DO dup @ swap 1 cells - LOOP
3020: free throw ;
3021:
3022: : loop] branchto, dup <resolve tcell - (done) ;
3023:
3024: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
3025:
3026: >TARGET
3027:
1.52 jwilke 3028: \ Structural Conditionals 12dec92py
3029:
1.103 jwilke 3030: : (cs-swap) ( x1 x2 -- x2 x1 )
3031: swap ; ' (cs-swap) plugin-of cs-swap
3032:
3033: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
3034:
3035: : (if,) ?branchmark, ; ' (if,) plugin-of if,
3036:
3037: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
3038:
3039: : (else,) ( ahead ) branchmark,
3040: swap
3041: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
3042:
3043: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
3044:
3045: : (while,) ( if ) ?branchmark,
3046: swap ; ' (while,) plugin-of while,
3047:
3048: : (again,) branch, ; ' (again,) plugin-of again,
3049:
3050: : (until,) ?branch, ; ' (until,) plugin-of until,
3051:
3052: : (repeat,) ( again ) branch,
3053: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
3054:
3055: : (case,) ( -- n )
3056: 0 ; ' (case,) plugin-of case,
3057:
3058: : (of,) ( n -- x1 n )
3059: 1+ >r
3060: compile over compile =
3061: if, compile drop r> ; ' (of,) plugin-of of,
3062:
3063: : (endof,) ( x1 n -- x2 n )
3064: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
3065:
3066: : (endcase,) ( x1 .. xn n -- )
3067: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
3068:
1.53 jwilke 3069: >TARGET
1.103 jwilke 3070: Cond: AHEAD ahead, ;Cond
3071: Cond: IF if, ;Cond
3072: Cond: THEN 1 ncontrols? then, ;Cond
3073: Cond: ENDIF 1 ncontrols? then, ;Cond
3074: Cond: ELSE 1 ncontrols? else, ;Cond
3075:
3076: Cond: BEGIN begin, ;Cond
3077: Cond: WHILE 1 ncontrols? while, ;Cond
3078: Cond: AGAIN 1 ncontrols? again, ;Cond
3079: Cond: UNTIL 1 ncontrols? until, ;Cond
3080: Cond: REPEAT 2 ncontrols? repeat, ;Cond
3081:
3082: Cond: CASE case, ;Cond
3083: Cond: OF of, ;Cond
3084: Cond: ENDOF endof, ;Cond
3085: Cond: ENDCASE endcase, ;Cond
1.1 anton 3086:
3087: \ Structural Conditionals 12dec92py
3088:
1.103 jwilke 3089: : (do,) ( -- target-addr )
3090: \ ?? i think 0 is too much! jaw
1.54 pazsan 3091: 0 compile (do)
1.103 jwilke 3092: branchtomark, 2 to1 ; ' (do,) plugin-of do,
1.54 pazsan 3093:
1.103 jwilke 3094: \ alternative for if no ?do
3095: \ : (do,)
1.54 pazsan 3096: \ compile 2dup compile = compile IF
3097: \ compile 2drop compile ELSE
3098: \ compile (do) branchtomark, 2 to1 ;
3099:
1.103 jwilke 3100: : (?do,) ( -- target-addr )
1.54 pazsan 3101: 0 compile (?do) ?domark, (leave)
1.103 jwilke 3102: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
3103:
3104: : (for,) ( -- target-addr )
3105: compile (for) branchtomark, ; ' (for,) plugin-of for,
3106:
3107: : (loop,) ( target-addr -- )
3108: 1to compile (loop) loop]
3109: compile unloop skiploop] ; ' (loop,) plugin-of loop,
3110:
3111: : (+loop,) ( target-addr -- )
3112: 1to compile (+loop) loop]
3113: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
3114:
3115: : (next,)
3116: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
3117:
3118: Cond: DO do, ;Cond
3119: Cond: ?DO ?do, ;Cond
3120: Cond: FOR for, ;Cond
3121:
3122: Cond: LOOP 1 ncontrols? loop, ;Cond
3123: Cond: +LOOP 1 ncontrols? +loop, ;Cond
3124: Cond: NEXT 1 ncontrols? next, ;Cond
1.52 jwilke 3125:
1.1 anton 3126: \ String words 23feb93py
3127:
1.103 jwilke 3128: : ," [char] " parse ht-string, X align ;
1.1 anton 3129:
1.103 jwilke 3130: Cond: ." compile (.") T ," H ;Cond
3131: Cond: S" compile (S") T ," H ;Cond
3132: Cond: C" compile (C") T ," H ;Cond
3133: Cond: ABORT" compile (ABORT") T ," H ;Cond
1.1 anton 3134:
3135: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 3136: : IS T >address ' >body ! H ;
1.9 pazsan 3137: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3138: : TO T ' >body ! H ;
1.1 anton 3139:
1.52 jwilke 3140: Cond: defers T ' >body @ compile, H ;Cond
3141:
1.1 anton 3142: \ LINKED ERR" ENV" 2ENV" 18may93jaw
3143:
3144: \ linked list primitive
1.79 jwilke 3145: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 3146: : chained T linked A, H ;
1.1 anton 3147:
3148: : err" s" ErrLink linked" evaluate T , H
1.103 jwilke 3149: [char] " parse ht-string, X align ;
1.1 anton 3150:
3151: : env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 3152: ht-string, X align X , ;
1.1 anton 3153:
3154: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 3155: here >r ht-string, X align X , X ,
1.1 anton 3156: r> dup T c@ H 80 and swap T c! H ;
3157:
3158: \ compile must be last 22feb93py
3159:
1.103 jwilke 3160: Cond: [compile] ( -- ) \ name
3161: \g For immediate words, works even if forward reference
3162: bl word gfind 0= ABORT" CROSS: Can't compile"
3163: (gexecute) ;Cond
3164:
3165: Cond: postpone ( -- ) \ name
3166: bl word gfind 0= ABORT" CROSS: Can't compile"
3167: dup >magic @ <fwd> =
3168: ABORT" CROSS: Can't postpone on forward declaration"
3169: dup >magic @ <imm> =
3170: IF (gexecute)
3171: ELSE compile (compile) addr, THEN ;Cond
1.54 pazsan 3172:
1.77 jwilke 3173: \ save-cross 17mar93py
3174:
3175: hex
3176:
3177: >CROSS
3178: Create magic s" Gforth2x" here over allot swap move
3179:
3180: bigendian 1+ \ strangely, in magic big=0, little=1
3181: tcell 1 = 0 and or
3182: tcell 2 = 2 and or
3183: tcell 4 = 4 and or
3184: tcell 8 = 6 and or
3185: tchar 1 = 00 and or
3186: tchar 2 = 28 and or
3187: tchar 4 = 50 and or
3188: tchar 8 = 78 and or
3189: magic 7 + c!
3190:
3191: : save-cross ( "image-name" "binary-name" -- )
3192: bl parse ." Saving to " 2dup type cr
3193: w/o bin create-file throw >r
1.113 jwilke 3194: s" header" X $has? IF
1.80 anton 3195: s" #! " r@ write-file throw
3196: bl parse r@ write-file throw
3197: s" --image-file" r@ write-file throw
1.77 jwilke 3198: #lf r@ emit-file throw
3199: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3200: ?do
3201: bl over emit-file throw
3202: loop
3203: drop
3204: magic 8 r@ write-file throw \ write magic
3205: ELSE
3206: bl parse 2drop
3207: THEN
3208: image @ there
3209: r@ write-file throw \ write image
1.113 jwilke 3210: s" relocate" X $has? IF
1.77 jwilke 3211: bit$ @ there 1- tcell>bit rshift 1+
3212: r@ write-file throw \ write tags
3213: THEN
3214: r> close-file throw ;
3215:
3216: : save-region ( addr len -- )
3217: bl parse w/o bin create-file throw >r
3218: swap >image swap r@ write-file throw
3219: r> close-file throw ;
3220:
1.110 jwilke 3221: \ save-asm-region 29aug01jaw
1.103 jwilke 3222:
3223: Variable name-ptr
3224: Create name-buf 200 chars allot
3225: : init-name-buf name-buf name-ptr ! ;
3226: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3227: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3228: : @nb name-ptr @ name-buf tuck - ;
3229:
3230: \ stores a usefull string representation of the character
3231: \ in the name buffer
3232: : name-char, ( c -- )
3233: dup 'a 'z 1+ within IF nb, EXIT THEN
3234: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3235: dup '0 '9 1+ within IF nb, EXIT THEN
3236: CASE '+ OF s" _PLUS" $nb, ENDOF
3237: '- OF s" _MINUS" $nb, ENDOF
3238: '* OF s" _STAR" $nb, ENDOF
3239: '/ OF s" _SLASH" $nb, ENDOF
3240: '' OF s" _TICK" $nb, ENDOF
3241: '( OF s" _OPAREN" $nb, ENDOF
3242: ') OF s" _CPAREN" $nb, ENDOF
3243: '[ OF s" _OBRACKET" $nb, ENDOF
3244: '] OF s" _CBRACKET" $nb, ENDOF
3245: '! OF s" _STORE" $nb, ENDOF
3246: '@ OF s" _FETCH" $nb, ENDOF
3247: '> OF s" _GREATER" $nb, ENDOF
3248: '< OF s" _LESS" $nb, ENDOF
3249: '= OF s" _EQUAL" $nb, ENDOF
3250: '# OF s" _HASH" $nb, ENDOF
3251: '? OF s" _QUEST" $nb, ENDOF
3252: ': OF s" _COL" $nb, ENDOF
3253: '; OF s" _SEMICOL" $nb, ENDOF
3254: ', OF s" _COMMA" $nb, ENDOF
3255: '. OF s" _DOT" $nb, ENDOF
3256: '" OF s" _DQUOT" $nb, ENDOF
3257: dup
3258: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3259: ENDCASE ;
3260:
3261: : label-from-ghostname ( ghost -- addr len )
3262: dup >ghostname init-name-buf 'L nb, bounds
3263: ?DO I c@ name-char, LOOP
3264: \ we add the address to a name to make in unique
3265: \ because one name may appear more then once
3266: \ there are names (e.g. boot) that may be reference from other
3267: \ assembler source files, so we declare them as unique
3268: \ and don't add the address suffix
3269: dup >ghost-flags @ <unique> and 0=
3270: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3271: ELSE drop
3272: THEN
3273: @nb ;
3274:
1.111 jwilke 3275: \ FIXME why disabled?!
1.103 jwilke 3276: : label-from-ghostnameXX ( ghost -- addr len )
3277: \ same as (label-from-ghostname) but caches generated names
3278: dup >asm-name @ ?dup IF nip count EXIT THEN
3279: \ dup >r (label-from-ghostname) 2dup
3280: align here >r string, align
3281: r> r> >asm-name ! ;
3282:
3283: : primghostdiscover ( xt -- ghost true | xt false )
3284: dup 0= IF false EXIT THEN
3285: >r last-prim-ghost
3286: BEGIN @ dup
3287: WHILE dup >asm-dummyaddr @ r@ =
3288: IF rdrop true EXIT THEN
3289: REPEAT
3290: drop r> false ;
3291:
3292: : gdiscover2 ( xt -- ghost true | xt false )
3293: dup taddr>region 0= IF false EXIT THEN
3294: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3295: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3296: nip true ;
3297: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3298:
3299: \ generates a label name for the target address
3300: : generate-label-name ( taddr -- addr len )
3301: gdiscover2
3302: IF dup >magic @ <do:> =
3303: IF >asm-name @ count EXIT THEN
3304: label-from-ghostname
3305: ELSE
3306: primghostdiscover
3307: IF >asm-name @ count
3308: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3309: THEN
3310: THEN ;
3311:
3312: Variable outfile-fd
3313:
3314: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3315: : nlout newline $out ;
3316: : .ux ( n -- )
3317: base @ hex swap 0 <# #S #> $out base ! ;
3318:
3319: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3320: dup cell/ 0
3321: ?DO nlout s" .word " $out over @relbit
3322: IF over X @ generate-label-name $out
3323: ELSE over X @ s" 0x0" $out .ux
3324: THEN
3325: tcell /string
3326: LOOP ;
3327:
3328: : print-bytes ( taddr len n -- taddr' len' )
3329: over min dup 0>
3330: IF nlout s" .byte " $out 0
3331: ?DO I 0> IF s" , " $out THEN
3332: over X c@ s" 0x0" $out .ux 1 /string
3333: LOOP
3334: THEN ;
3335:
3336: : save-asm-region-part ( addr len -- )
3337: over dup X aligned swap - ?dup
3338: IF print-bytes THEN
3339: save-asm-region-part-aligned
3340: dup dup X aligned swap - ?dup
3341: IF 2 pick @relbit ABORT" relocated field splitted"
3342: print-bytes
3343: THEN
3344: 2drop ;
3345:
3346: : print-label ( taddr -- )
3347: nlout generate-label-name $out s" :" $out ;
3348:
3349: : snl-calc ( taddr taddr2 -- )
3350: tuck over - ;
3351:
3352: : skip-nolables ( taddr -- taddr2 taddr len )
3353: \G skips memory region where no lables are defined
3354: \G starting from taddr+1
3355: \G Labels will be introduced for each reference mark
3356: \G in addr-refs.
3357: \G This word deals with lables at byte addresses as well.
3358: \G The main idea is to have an intro part which
3359: \G skips until the next cell boundary, the middle part
3360: \G which skips whole cells very efficiently and the third
3361: \G part which skips the bytes to the label in a cell
3362: dup 1+ dup (>regiontype)
3363: ( S taddr taddr-realstart type-addr )
3364: dup @ dup IF addr-refs @ THEN
3365: swap >r
3366: over align+ tuck tcell swap - rshift swap 0
3367: DO dup 1 and
3368: IF drop rdrop snl-calc UNLOOP EXIT THEN
3369: 2/ swap 1+ swap
3370: LOOP
3371: drop r> cell+
3372: ( S .. taddr2 type-addr ) dup
3373: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3374: dup >r swap - 1 cells / tcell * + r>
3375: ( S .. taddr2+skiplencells type-addr )
3376: @ addr-refs @ 1 tcell lshift or
3377: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3378: ( S .. taddr2+skiplencells+skiplenbytes )
3379: snl-calc ;
3380:
3381: : insert-label ( taddr -- )
3382: dup 0= IF drop EXIT THEN
3383: \ ignore everything which points outside our memory regions
3384: \ maybe a primitive pointer or whatever
3385: dup taddr>region 0= IF drop EXIT THEN
3386: dup >r (>regiontype) define-addr-struct addr-refs dup @
3387: r> tcell 1- and 1 swap lshift or swap ! ;
3388:
3389: \ this generates a sorted list of addresses which must be labels
3390: \ it scans therefore a whole region
3391: : generate-label-list-region ( taddr len -- )
3392: BEGIN over @relbit IF over X @ insert-label THEN
3393: tcell /string dup 0<
3394: UNTIL 2drop ;
3395:
3396: : generate-label-list ( -- )
3397: region-link
3398: BEGIN @ dup WHILE
3399: dup 0 >rlink - extent
3400: ?dup IF generate-label-list-region ELSE drop THEN
3401: REPEAT drop ;
3402:
3403: : create-outfile ( addr len -- )
3404: w/o bin create-file throw outfile-fd ! ;
3405:
3406: : close-outfile ( -- )
3407: outfile-fd @ close-file throw ;
3408:
3409: : (save-asm-region) ( region -- )
3410: \ ." label list..."
3411: generate-label-list
3412: \ ." ok!" cr
3413: extent ( S taddr len )
3414: over insert-label
3415: 2dup + dup insert-label >r ( R end-label )
3416: ( S taddr len ) drop
3417: BEGIN
3418: dup print-label
3419: dup r@ <> WHILE
3420: skip-nolables save-asm-region-part
3421: REPEAT drop rdrop ;
3422:
3423: : lineout ( addr len -- )
3424: outfile-fd @ write-line throw ;
3425:
3426: : save-asm-region ( region adr len -- )
3427: create-outfile (save-asm-region) close-outfile ;
3428:
1.54 pazsan 3429: \ \ minimal definitions
3430:
1.77 jwilke 3431: >MINIMAL also minimal
3432:
1.1 anton 3433: \ Usefull words 13feb93py
3434:
3435: : KB 400 * ;
3436:
1.54 pazsan 3437: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3438:
3439: \ it is useful to define our own structures and not to rely
1.109 jwilke 3440: \ on the words in the host system
3441: \ The words in the host system might be defined with vocabularies
1.54 pazsan 3442: \ this doesn't work with our self-made compile-loop
3443:
3444: Create parsed 20 chars allot \ store word we parsed
3445:
3446: : upcase
3447: parsed count bounds
3448: ?DO I c@ toupper I c! LOOP ;
3449:
3450: : [ELSE]
3451: 1 BEGIN
3452: BEGIN bl word count dup WHILE
1.77 jwilke 3453: comment? 20 umin parsed place upcase parsed count
1.54 pazsan 3454: 2dup s" [IF]" compare 0= >r
3455: 2dup s" [IFUNDEF]" compare 0= >r
3456: 2dup s" [IFDEF]" compare 0= r> or r> or
3457: IF 2drop 1+
3458: ELSE 2dup s" [ELSE]" compare 0=
3459: IF 2drop 1- dup
3460: IF 1+
3461: THEN
3462: ELSE
3463: 2dup s" [ENDIF]" compare 0= >r
3464: s" [THEN]" compare 0= r> or
3465: IF 1- THEN
3466: THEN
3467: THEN
3468: ?dup 0= ?EXIT
3469: REPEAT
3470: 2drop refill 0=
3471: UNTIL drop ; immediate
3472:
3473: : [THEN] ( -- ) ; immediate
3474:
3475: : [ENDIF] ( -- ) ; immediate
3476:
3477: : [IF] ( flag -- )
3478: 0= IF postpone [ELSE] THEN ; immediate
3479:
3480: Cond: [IF] postpone [IF] ;Cond
3481: Cond: [THEN] postpone [THEN] ;Cond
3482: Cond: [ELSE] postpone [ELSE] ;Cond
3483:
1.1 anton 3484: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3485:
1.77 jwilke 3486: : defined? tdefined? ;
1.44 pazsan 3487: : needed? needed? ;
3488: : doer? doer? ;
1.1 anton 3489:
1.52 jwilke 3490: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3491:
3492: : directive?
1.77 jwilke 3493: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 3494: dup IF nip THEN ;
3495:
3496: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 3497: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 3498: postpone [IF] ;
3499:
1.77 jwilke 3500: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 3501:
1.54 pazsan 3502: Cond: [IFDEF] postpone [IFDEF] ;Cond
3503:
3504: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3505:
1.1 anton 3506: \ C: \- \+ Conditional Compiling 09jun93jaw
3507:
1.77 jwilke 3508: : C: >in @ tdefined? 0=
3509: IF >in ! X :
1.1 anton 3510: ELSE drop
3511: BEGIN bl word dup c@
3512: IF count comment? s" ;" compare 0= ?EXIT
3513: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3514: THEN
3515: AGAIN
3516: THEN ;
3517:
1.74 jwilke 3518: : d? d? ;
3519:
1.123 jwilke 3520: : \D ( -- "debugswitch" )
1.74 jwilke 3521: \G doesn't skip line when debug switch is on
1.123 jwilke 3522: D? 0= IF postpone \ THEN ;
1.52 jwilke 3523:
1.123 jwilke 3524: : \- ( -- "wordname" )
1.48 anton 3525: \G interprets the line if word is not defined
1.123 jwilke 3526: tdefined? IF postpone \ THEN ;
1.48 anton 3527:
1.123 jwilke 3528: : \+ ( -- "wordname" )
1.48 anton 3529: \G interprets the line if word is defined
1.123 jwilke 3530: tdefined? 0= IF postpone \ THEN ;
3531:
3532: : \? ( -- "envorinstring" )
3533: \G Skip line if environmental variable evaluates to false
3534: X has? 0= IF postpone \ THEN ;
1.1 anton 3535:
1.48 anton 3536: Cond: \- \- ;Cond
3537: Cond: \+ \+ ;Cond
1.52 jwilke 3538: Cond: \D \D ;Cond
1.123 jwilke 3539: Cond: \? \? ;Cond
1.48 anton 3540:
3541: : ?? bl word find IF execute ELSE drop 0 THEN ;
3542:
3543: : needed:
3544: \G defines ghost for words that we want to be compiled
1.103 jwilke 3545: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48 anton 3546:
1.1 anton 3547: \ words that should be in minimal
1.52 jwilke 3548:
3549: create s-buffer 50 chars allot
3550:
1.77 jwilke 3551: bigendian Constant bigendian
1.1 anton 3552:
1.52 jwilke 3553: : here there ;
1.67 jwilke 3554: : equ constant ;
3555: : mark there constant ;
1.54 pazsan 3556:
3557: \ compiler directives
1.52 jwilke 3558: : >ram >ram ;
3559: : >rom >rom ;
3560: : >auto >auto ;
3561: : >tempdp >tempdp ;
3562: : tempdp> tempdp> ;
3563: : const constflag on ;
1.103 jwilke 3564:
3565: : Redefinitions-start
3566: \G Starts a redefinition section. Warnings are disabled and
3567: \G existing ghosts are reused. This is used in the kernel
3568: \G where ( and \ and the like are redefined
3569: twarnings off warnings off reuse-ghosts on ;
3570:
3571: : Redefinitions-end
3572: \G Ends a redefinition section. Warnings are enabled again.
3573: twarnings on warnings on reuse-ghosts off ;
3574:
3575: : warnings name 3 =
3576: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102 jwilke 3577:
1.60 anton 3578: : | ;
3579: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 3580:
1.48 anton 3581: : save-cross save-cross ;
1.52 jwilke 3582: : save-region save-region ;
3583: : tdump swap >image swap dump ;
3584:
1.48 anton 3585: also forth
1.52 jwilke 3586: [IFDEF] Label : Label defempty? Label ; [THEN]
3587: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 3588: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 3589: previous
3590:
1.52 jwilke 3591: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 3592: : + + ;
1.52 jwilke 3593: : 1+ 1 + ;
3594: : 2+ 2 + ;
1.43 pazsan 3595: : 1- 1- ;
3596: : - - ;
1.52 jwilke 3597: : and and ;
3598: : or or ;
1.43 pazsan 3599: : 2* 2* ;
3600: : * * ;
3601: : / / ;
3602: : dup dup ;
3603: : over over ;
3604: : swap swap ;
3605: : rot rot ;
3606: : drop drop ;
3607: : = = ;
1.122 jwilke 3608: : <> <> ;
1.43 pazsan 3609: : 0= 0= ;
3610: : lshift lshift ;
3611: : 2/ 2/ ;
1.103 jwilke 3612: \ : . . ;
1.1 anton 3613:
1.79 jwilke 3614: : all-words ['] forced? IS skip? ;
1.43 pazsan 3615: : needed-words ['] needed? IS skip? ;
1.75 jwilke 3616: : undef-words ['] defined2? IS skip? ;
3617: : skipdef skipdef ;
1.1 anton 3618:
1.40 pazsan 3619: : \ postpone \ ; immediate
1.47 pazsan 3620: : \G T-\G ; immediate
1.40 pazsan 3621: : ( postpone ( ; immediate
1.1 anton 3622: : include bl word count included ;
1.103 jwilke 3623: : included swap >image swap included ;
1.52 jwilke 3624: : require require ;
1.103 jwilke 3625: : needs require ;
1.1 anton 3626: : .( [char] ) parse type ;
1.52 jwilke 3627: : ." [char] " parse type ;
1.1 anton 3628: : cr cr ;
3629:
1.77 jwilke 3630: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3631:
3632: \ only forth also cross also minimal definitions order
1.1 anton 3633:
3634: \ cross-compiler words
3635:
1.103 jwilke 3636: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3637: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1 anton 3638:
1.77 jwilke 3639: \ : tudp X tudp ;
3640: \ : tup X tup ;
3641:
3642: : doc-off false to-doc ! ;
3643: : doc-on true to-doc ! ;
1.39 pazsan 3644:
1.103 jwilke 3645: : declareunique ( "name" -- )
3646: \G Sets the unique flag for a ghost. The assembler output
3647: \G generates labels with the ghostname concatenated with the address
3648: \G while cross-compiling. The address is concatenated
3649: \G because we have double occurences of the same name.
3650: \G If we want to reference the labels from the assembler or C
3651: \G code we declare them unique, so the address is skipped.
3652: Ghost >ghost-flags dup @ <unique> or swap ! ;
3653:
3654: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 3655:
1.1 anton 3656: \ for debugging...
1.103 jwilke 3657: \ : dbg dbg ;
3658: : horder order ;
3659: : hwords words ;
3660: \ : words also ghosts
3661: \ words previous ;
1.105 jwilke 3662: : .s .s ;
1.122 jwilke 3663: : depth depth ;
1.1 anton 3664: : bye bye ;
1.99 pazsan 3665:
1.103 jwilke 3666: \ dummy
3667: : group 0 word drop ;
3668:
1.1 anton 3669: \ turnkey direction
3670: : H forth ; immediate
3671: : T minimal ; immediate
3672: : G ghosts ; immediate
3673:
3674:
3675: \ these ones are pefered:
3676:
1.74 jwilke 3677: : unlock previous forth also cross ;
1.52 jwilke 3678:
1.77 jwilke 3679: \ also minimal
1.103 jwilke 3680: >cross
3681:
3682: : turnkey
3683: ghosts-wordlist 1 set-order
3684: also target definitions
3685: also Minimal also ;
3686:
3687: >minimal
3688:
3689: : [[+++
3690: turnkey unlock ;
1.1 anton 3691:
3692: unlock definitions also minimal
1.77 jwilke 3693:
1.103 jwilke 3694: : lock turnkey ;
3695:
3696: Defer +++]]-hook
3697: : +++]] +++]]-hook lock ;
3698:
3699: LOCK
1.77 jwilke 3700: \ load cross compiler extension defined in mach file
3701:
3702: UNLOCK >CROSS
3703:
3704: [IFDEF] extend-cross extend-cross [THEN]
3705:
3706: LOCK
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