cross.fs 55.1 KB
Newer Older
anton's avatar
anton committed
1 2
\ CROSS.FS     The Cross-Compiler                      06oct92py
\ Idea and implementation: Bernd Paysan (py)
anton's avatar
anton committed
3

4
\ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
anton's avatar
anton committed
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

\ This file is part of Gforth.

\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.

\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
\ GNU General Public License for more details.

\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
anton's avatar
anton committed
21

jwilke's avatar
jwilke committed
22 23 24 25 26 27 28 29 30 31 32
0 
[IF]

ToDo:
Crossdoc destination ./doc/crossdoc.fd makes no sense when
cross.fs is uses seperately. jaw
Do we need this char translation with >address and in branchoffset? 
(>body also affected) jaw
Clean up mark> and >resolve stuff jaw

[THEN]
anton's avatar
anton committed
33 34


jwilke's avatar
jwilke committed
35 36 37 38 39
hex     \ the defualt base for the cross-compiler is hex !!
Warnings off

\ words that are generaly useful

40
: KB  400 * ;
jwilke's avatar
jwilke committed
41 42 43 44 45
: >wordlist ( vocabulary-xt -- wordlist-struct )
  also execute get-order swap >r 1- set-order r> ;

: umax 2dup u< IF swap THEN drop ;
: umin 2dup u> IF swap THEN drop ;
anton's avatar
anton committed
46

pazsan's avatar
pazsan committed
47 48 49
: string, ( c-addr u -- )
    \ puts down string as cstring
    dup c, here swap chars dup allot move ;
50

jwilke's avatar
jwilke committed
51
: SetValue ( n -- <name> )
pazsan's avatar
pazsan committed
52 53
\G Same behaviour as "Value" if the <name> is not defined
\G Same behaviour as "to" if <name> is defined
jwilke's avatar
jwilke committed
54
\G SetValue searches in the current vocabulary
jwilke's avatar
jwilke committed
55 56 57 58 59 60
  save-input bl word >r restore-input throw r> count
  get-current search-wordlist
  IF	drop >r
	\ we have to set current to be topmost context wordlist
	get-order get-order get-current swap 1+ set-order
	r> ['] to execute
jwilke's avatar
jwilke committed
61
	set-order
jwilke's avatar
jwilke committed
62
  ELSE Value THEN ;
jwilke's avatar
jwilke committed
63 64

: DefaultValue ( n -- <name> )
pazsan's avatar
pazsan committed
65 66
\G Same behaviour as "Value" if the <name> is not defined
\G DefaultValue searches in the current vocabulary
jwilke's avatar
jwilke committed
67 68
 save-input bl word >r restore-input throw r> count
 get-current search-wordlist
69
 IF bl word drop 2drop ELSE Value THEN ;
anton's avatar
anton committed
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96

hex

Vocabulary Cross
Vocabulary Target
Vocabulary Ghosts
VOCABULARY Minimal
only Forth also Target also also
definitions Forth

: T  previous Cross also Target ; immediate
: G  Ghosts ; immediate
: H  previous Forth also Cross ; immediate

forth definitions

: T  previous Cross also Target ; immediate
: G  Ghosts ; immediate

: >cross  also Cross definitions previous ;
: >target also Target definitions previous ;
: >minimal also Minimal definitions previous ;

H

>CROSS

jwilke's avatar
jwilke committed
97 98 99
\ 1 Constant Cross-Flag	\ to check whether assembler compiler plug-ins are
			\ for cross-compiling
\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
pazsan's avatar
pazsan committed
100

jwilke's avatar
jwilke committed
101 102 103 104 105
: comment? ( c-addr u -- c-addr u )
        2dup s" (" compare 0=
        IF    postpone (
        ELSE  2dup s" \" compare 0= IF postpone \ THEN
        THEN ;
pazsan's avatar
pazsan committed
106

jwilke's avatar
jwilke committed
107
\ Begin CROSS COMPILER:
anton's avatar
anton committed
108

pazsan's avatar
pazsan committed
109 110


jwilke's avatar
jwilke committed
111 112 113 114 115 116 117 118 119 120
\ \ --------------------        Error Handling                  05aug97jaw

\ Flags

also forth definitions  \ these values may be predefined before
                        \ the cross-compiler is loaded

false DefaultValue stack-warn   	 \ check on empty stack at any definition
false DefaultValue create-forward-warn   \ warn on forward declaration of created words

jwilke's avatar
jwilke committed
121 122 123


  
jwilke's avatar
jwilke committed
124 125 126

previous >CROSS

jwilke's avatar
jwilke committed
127 128 129
: .dec
  base @ decimal swap . base ! ;

jwilke's avatar
jwilke committed
130 131
: .sourcepos
  cr sourcefilename type ." :"
jwilke's avatar
jwilke committed
132
  sourceline# .dec ;
jwilke's avatar
jwilke committed
133 134 135 136 137 138 139 140 141 142 143 144 145 146

: warnhead
\G display error-message head
\G perhaps with linenumber and filename
  .sourcepos ." Warning: " ;

: empty? depth IF .sourcepos ." Stack not empty!"  THEN ;

stack-warn [IF]
: defempty? empty? ;
[ELSE]
: defempty? ; immediate
[THEN]

jwilke's avatar
jwilke committed
147
\ debugging
jwilke's avatar
jwilke committed
148

jwilke's avatar
jwilke committed
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186
0 [IF]

This implements debugflags for the cross compiler and the compiled
images. It works identical to the has-flags in the environment.
The debugflags are defined in a vocabluary. If the word exists and
its value is true, the flag is switched on.

[THEN]

Vocabulary debugflags	\ debug flags for cross
also debugflags get-order over
Constant debugflags-wl
set-order previous

: DebugFlag
  get-current >r debugflags-wl set-current
  SetValue
  r> set-current ;

: Debug? ( adr u -- flag )
\G return true if debug flag is defined or switched on
  debugflags-wl search-wordlist
  IF EXECUTE
  ELSE false THEN ;

: D? ( <name> -- flag )
\G return true if debug flag is defined or switched on
\G while compiling we do not return the current value but
  bl word count debug? ;

: [d?]
\G compile the value-xt so the debug flag can be switched
\G the flag must exist!
  bl word count debugflags-wl search-wordlist
  IF 	compile,
  ELSE  -1 ABORT" unknown debug flag"
	\ POSTPONE false 
  THEN ; immediate
pazsan's avatar
pazsan committed
187

jwilke's avatar
jwilke committed
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210
\ \ GhostNames Ghosts                                  9may93jaw

\ second name source to search trough list

VARIABLE GhostNames
0 GhostNames !

: GhostName ( -- addr )
    here GhostNames @ , GhostNames ! here 0 ,
    bl word count
    \ 2dup type space
    string, \ !! cfalign ?
    align ;

\ Ghost Builder                                        06oct92py

\ <T T> new version with temp variable                 10may93jaw

VARIABLE VocTemp

: <T  get-current VocTemp ! also Ghosts definitions ;
: T>  previous VocTemp @ set-current ;

pazsan's avatar
pazsan committed
211
hex
jwilke's avatar
jwilke committed
212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272
4711 Constant <fwd>             4712 Constant <res>
4713 Constant <imm>             4714 Constant <do:>

\ iForth makes only immediate directly after create
\ make atonce trick! ?

Variable atonce atonce off

: NoExec true ABORT" CROSS: Don't execute ghost" ;

: GhostHeader <fwd> , 0 , ['] NoExec , ;

: >magic ;		\ type of ghost
: >link cell+ ;		\ pointer where ghost is in target, or if unresolved
			\ points to the where we have to resolve (linked-list)
: >exec cell+ cell+ ;	\ execution symantics (while target compiling) of ghost
: >end 3 cells + ;	\ room for additional tags
			\ for builder (create, variable...) words the
			\ execution symantics of words built are placed here

Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
Variable last-ghost	\ last ghost that is created
Variable last-header-ghost \ last ghost definitions with header

: Make-Ghost ( "name" -- ghost )
  >in @ GhostName swap >in !
  <T Create atonce @ IF immediate atonce off THEN
  here tuck swap ! ghostheader T>
  dup last-ghost !
  DOES> dup executed-ghost ! >exec @ execute ;

\ ghost words                                          14oct92py
\                                          changed:    10may93py/jaw

: gfind   ( string -- ghost true/1 / string false )
\ searches for string in word-list ghosts
  dup count [ ' ghosts >wordlist ] ALiteral search-wordlist
  dup IF >r >body nip r>  THEN ;

: gdiscover ( xt -- ghost true | xt false )
  GhostNames
  BEGIN @ dup
  WHILE 2dup
        cell+ @ dup >magic @ <fwd> <>
        >r >link @ = r> and
        IF cell+ @ nip true EXIT THEN
  REPEAT
  drop false ;

VARIABLE Already

: ghost   ( "name" -- ghost )
  Already off
  >in @  bl word gfind   IF  Already on nip EXIT  THEN
  drop  >in !  Make-Ghost ;

: >ghostname ( ghost -- adr len )
  GhostNames
  BEGIN @ dup
  WHILE 2dup cell+ @ =
  UNTIL nip 2 cells + count
pazsan's avatar
pazsan committed
273 274 275
  ELSE  2drop 
	\ true abort" CROSS: Ghostnames inconsistent"
	s" ?!?!?!"
jwilke's avatar
jwilke committed
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296
  THEN ;

' >ghostname ALIAS @name

: forward? ( ghost -- flag )
  >magic @ <fwd> = ;

\ Predefined ghosts                                    12dec92py

ghost 0=                                        drop
ghost branch    ghost ?branch                   2drop
ghost (do)      ghost (?do)                     2drop
ghost (for)                                     drop
ghost (loop)    ghost (+loop)                   2drop
ghost (next)                                    drop
ghost unloop    ghost ;S                        2drop
ghost lit       ghost (compile) ghost !         2drop drop
ghost (does>)   ghost noop                      2drop
ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
ghost '                                         drop
ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
pazsan's avatar
pazsan committed
297
ghost :dovar					drop
jwilke's avatar
jwilke committed
298 299
ghost over      ghost =         ghost drop      2drop drop
ghost - drop
pazsan's avatar
pazsan committed
300 301
ghost 2drop drop
ghost 2dup drop
jwilke's avatar
jwilke committed
302 303 304 305 306 307 308 309 310 311 312 313 314

\ \ Parameter for target systems                         06oct92py

\ we define it ans like...
wordlist Constant target-environment

VARIABLE env-current \ save information of current dictionary to restore with environ>

: >ENVIRON get-current env-current ! target-environment set-current ;
: ENVIRON> env-current @ set-current ; 

>TARGET

jwilke's avatar
jwilke committed
315
: environment? ( adr len -- [ x ] true | false )
jwilke's avatar
jwilke committed
316 317 318
  target-environment search-wordlist 
  IF execute true ELSE false THEN ;

jwilke's avatar
jwilke committed
319
: e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
jwilke's avatar
jwilke committed
320

jwilke's avatar
jwilke committed
321
: has? 	bl word count T environment? H 
jwilke's avatar
jwilke committed
322 323 324 325 326
	IF 	\ environment variable is present, return its value
	ELSE	\ environment variable is not present, return false
		\ !! JAW abort is just for testing
		false true ABORT" arg" 
	THEN ;
jwilke's avatar
jwilke committed
327 328 329

: $has? T environment? H IF ELSE false THEN ;

pazsan's avatar
pazsan committed
330 331
>ENVIRON get-order get-current swap 1+ set-order
true SetValue compiler
jwilke's avatar
jwilke committed
332
true  SetValue cross
pazsan's avatar
pazsan committed
333 334
true SetValue standard-threading
>TARGET previous
jwilke's avatar
jwilke committed
335

336

jwilke's avatar
jwilke committed
337 338
mach-file count included hex

jwilke's avatar
jwilke committed
339 340
>ENVIRON

pazsan's avatar
pazsan committed
341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
T has? ec H
[IF]
false DefaultValue relocate
false DefaultValue file
false DefaultValue OS
false DefaultValue prims
false DefaultValue floating
false DefaultValue glocals
false DefaultValue dcomps
false DefaultValue hash
false DefaultValue xconds
false DefaultValue header
[THEN]

true DefaultValue interpreter
true DefaultValue ITC
false DefaultValue rom
jwilke's avatar
jwilke committed
358
true DefaultValue standardthreading
jwilke's avatar
jwilke committed
359

jwilke's avatar
jwilke committed
360 361 362 363 364
>TARGET
s" relocate" T environment? H 
[IF]	SetValue NIL
[ELSE]	>ENVIRON T NIL H SetValue relocate
[THEN]
pazsan's avatar
pazsan committed
365 366 367

>CROSS

jwilke's avatar
jwilke committed
368
\ \ Create additional parameters                         19jan95py
pazsan's avatar
pazsan committed
369

370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386
\ currently cross only works for host machines with address-unit-bits
\ eual to 8 because of s! and sc!
\ but I start to query the environment just to modularize a little bit

: check-address-unit-bits ( -- )	
\	s" ADDRESS-UNIT-BITS" environment?
\	IF 8 <> ELSE true THEN
\	ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"

\	shit, this doesn't work because environment? is only defined for 
\	gforth.fi and not kernl???.fi
	;

check-address-unit-bits
8 Constant bits/byte	\ we define: byte is address-unit

1 bits/byte lshift Constant maxbyte 
jwilke's avatar
jwilke committed
387 388
\ this sets byte size for the target machine, an (probably right guess) jaw

pazsan's avatar
pazsan committed
389
T
390 391 392 393 394 395 396 397 398 399 400 401 402 403
NIL		   	Constant TNIL
cell               	Constant tcell
cell<<             	Constant tcell<<
cell>bit           	Constant tcell>bit
bits/char          	Constant tbits/char
bits/char H bits/byte T /      
			Constant tchar
float             	Constant tfloat
1 bits/char lshift 	Constant tmaxchar
[IFUNDEF] bits/byte
8			Constant tbits/byte
[ELSE]
bits/byte		Constant tbits/byte
[THEN]
pazsan's avatar
pazsan committed
404
H
405 406
tbits/byte bits/byte /	Constant tbyte

pazsan's avatar
pazsan committed
407

anton's avatar
anton committed
408 409 410 411 412 413 414 415
\ Variables                                            06oct92py

Variable image
Variable tlast    TNIL tlast !  \ Last name field
Variable tlastcfa \ Last code field
Variable tdoes    \ Resolve does> calls
Variable bit$

jwilke's avatar
jwilke committed
416 417 418 419 420
\ statistics						10jun97jaw

Variable headers-named 0 headers-named !
Variable user-vars 0 user-vars !

jwilke's avatar
jwilke committed
421 422 423 424 425 426
: target>bitmask-size ( u1 -- u2 )
  1- tcell>bit rshift 1+ ;

: allocatetarget ( size --- adr )
  dup allocate ABORT" CROSS: No memory for target"
  swap over swap erase ;
jwilke's avatar
jwilke committed
427

pazsan's avatar
pazsan committed
428
\ \ memregion.fs
jwilke's avatar
jwilke committed
429 430 431 432 433 434 435 436


Variable last-defined-region    \ pointer to last defined region
Variable region-link            \ linked list with all regions
Variable mirrored-link          \ linked list for mirrored regions
0 dup mirrored-link ! region-link !


jwilke's avatar
jwilke committed
437 438 439 440
: >rname 6 cells + ;
: >rbm   5 cells + ;
: >rmem  4 cells + ;
: >rlink 3 cells + ;
jwilke's avatar
jwilke committed
441 442 443 444 445 446 447 448 449 450 451 452 453
: >rdp 2 cells + ;
: >rlen cell+ ;
: >rstart ;


: region ( addr len -- )                \G create a new region
  \ check whether predefined region exists 
  save-input bl word find >r >r restore-input throw r> r> 0= 
  IF	\ make region
	drop
	save-input create restore-input throw
	here last-defined-region !
	over ( startaddr ) , ( length ) , ( dp ) ,
jwilke's avatar
jwilke committed
454
	region-link linked 0 , 0 , bl word count string,
jwilke's avatar
jwilke committed
455 456 457
  ELSE	\ store new parameters in region
        bl word drop
	>body >r r@ last-defined-region !
jwilke's avatar
jwilke committed
458
	r@ >rlen ! dup r@ >rstart ! r> >rdp !
jwilke's avatar
jwilke committed
459 460 461
  THEN ;

: borders ( region -- startaddr endaddr ) \G returns lower and upper region border
jwilke's avatar
jwilke committed
462
  dup >rstart @ swap >rlen @ over + ;
jwilke's avatar
jwilke committed
463 464

: extent  ( region -- startaddr len )   \G returns the really used area
jwilke's avatar
jwilke committed
465
  dup >rstart @ swap >rdp @ over - ;
jwilke's avatar
jwilke committed
466 467

: area ( region -- startaddr totallen ) \G returns the total area
jwilke's avatar
jwilke committed
468
  dup >rstart swap >rlen @ ;
jwilke's avatar
jwilke committed
469 470 471

: mirrored                              \G mark a region as mirrored
  mirrored-link
jwilke's avatar
jwilke committed
472
  align linked last-defined-region @ , ;
jwilke's avatar
jwilke committed
473

jwilke's avatar
jwilke committed
474 475
: .addr ( u -- )
\G prints a 16 or 32 Bit nice hex value
jwilke's avatar
jwilke committed
476 477 478 479 480 481 482 483 484 485 486 487 488
  base @ >r hex
  tcell 2 u>
  IF s>d <# # # # # '. hold # # # # #> type
  ELSE s>d <# # # # # # #> type
  THEN r> base ! ;

: .regions                      \G display region statistic

  \ we want to list the regions in the right order
  \ so first collect all regions on stack
  0 region-link @
  BEGIN dup WHILE dup @ REPEAT drop
  BEGIN dup
jwilke's avatar
jwilke committed
489 490 491
  WHILE cr
        0 >rlink - >r
        r@ >rname count tuck type
jwilke's avatar
jwilke committed
492
        12 swap - 0 max spaces space
jwilke's avatar
jwilke committed
493 494 495
        ." Start: " r@ >rstart @ dup .addr space
        ." End: " r@ >rlen @ + .addr space
        ." DP: " r> >rdp @ .addr
jwilke's avatar
jwilke committed
496
  REPEAT drop
jwilke's avatar
jwilke committed
497
  s" rom" T $has? H 0= ?EXIT
jwilke's avatar
jwilke committed
498 499 500
  cr ." Mirrored:"
  mirrored-link @
  BEGIN dup
jwilke's avatar
jwilke committed
501
  WHILE space dup cell+ @ >rname count type @
jwilke's avatar
jwilke committed
502 503 504 505 506 507 508 509 510 511 512
  REPEAT drop cr
  ;

\ -------- predefined regions

0 0 region address-space
\ total memory addressed and used by the target system

0 0 region dictionary
\ rom area for the compiler

jwilke's avatar
jwilke committed
513
T has? rom H
jwilke's avatar
jwilke committed
514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530
[IF]
0 0 region ram-dictionary mirrored
\ ram area for the compiler
[ELSE]
' dictionary ALIAS ram-dictionary
[THEN]

0 0 region return-stack

0 0 region data-stack

0 0 region tib-region

' dictionary ALIAS rom-dictionary


: setup-target ( -- )   \G initialize targets memory space
jwilke's avatar
jwilke committed
531
  s" rom" T $has? H
jwilke's avatar
jwilke committed
532
  IF  \ check for ram and rom...
533
      \ address-space area nip 0<>
jwilke's avatar
jwilke committed
534 535
      ram-dictionary area nip 0<>
      rom-dictionary area nip 0<>
536
      and 0=
jwilke's avatar
jwilke committed
537 538 539 540 541 542 543 544
      ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
  THEN
  address-space area nip
  IF
      address-space area
  ELSE
      dictionary area
  THEN
jwilke's avatar
jwilke committed
545
  nip 0=
jwilke's avatar
jwilke committed
546
  ABORT" CROSS: define at least address-space or dictionary!!"
jwilke's avatar
jwilke committed
547 548 549 550 551 552 553 554 555 556 557 558 559 560

  \ allocate target for each region
  region-link
  BEGIN @ dup
  WHILE dup
        0 >rlink - >r
        r@ >rlen @
        IF      \ allocate mem
                r@ >rlen @ dup

                allocatetarget dup image !
                r@ >rmem !

                target>bitmask-size allocatetarget
561
                dup bit$ !
jwilke's avatar
jwilke committed
562 563 564
                r> >rbm !

        ELSE    r> drop THEN
565 566 567 568 569 570 571 572 573 574
   REPEAT drop ;

\ MakeKernal                                           		22feb99jaw

: makekernel ( targetsize -- targetsize )
  dup dictionary >rlen ! setup-target ;

>MINIMAL
: makekernel makekernel ;
>CROSS
jwilke's avatar
jwilke committed
575

pazsan's avatar
pazsan committed
576
\ \ switched tdp for rom support				03jun97jaw
jwilke's avatar
jwilke committed
577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609

\ second value is here to store some maximal value for statistics
\ tempdp is also embedded here but has nothing to do with rom support
\ (needs switched dp)

variable tempdp	0 ,	\ temporary dp for resolving
variable tempdp-save

0 [IF]
variable romdp 0 ,      \ Dictionary-Pointer for ramarea
variable ramdp 0 ,      \ Dictionary-Pointer for romarea

\
variable sramdp		\ start of ram-area for forth
variable sromdp		\ start of rom-area for forth

[THEN]


0 value tdp
variable fixed		\ flag: true: no automatic switching
			\	false: switching is done automatically

\ Switch-Policy:
\
\ a header is always compiled into rom
\ after a created word (create and variable) compilation goes to ram
\
\ Be careful: If you want to make the data behind create into rom
\ you have to put >rom before create!

variable constflag constflag off

jwilke's avatar
jwilke committed
610 611 612 613
: activate ( region -- )
\G next code goes to this region
  >rdp to tdp ;

jwilke's avatar
jwilke committed
614
: (switchram)
jwilke's avatar
jwilke committed
615
  fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
jwilke's avatar
jwilke committed
616
  ram-dictionary activate ;
jwilke's avatar
jwilke committed
617 618 619 620 621 622

: switchram
  constflag @
  IF constflag off ELSE (switchram) THEN ;

: switchrom
jwilke's avatar
jwilke committed
623
  fixed @ ?EXIT rom-dictionary activate ;
jwilke's avatar
jwilke committed
624 625 626 627 628 629 630 631 632 633 634 635 636 637 638

: >tempdp ( addr -- ) 
  tdp tempdp-save ! tempdp to tdp tdp ! ;
: tempdp> ( -- )
  tempdp-save @ to tdp ;

: >ram  fixed off (switchram) fixed on ;
: >rom  fixed off switchrom fixed on ;
: >auto fixed off switchrom ;



\ : romstart dup sromdp ! romdp ! ;
\ : ramstart dup sramdp ! ramdp ! ;

jwilke's avatar
jwilke committed
639
\ default compilation goes to rom
jwilke's avatar
jwilke committed
640 641 642 643
\ when romable support is off, only the rom switch is used (!!)
>auto

: there  tdp @ ;
anton's avatar
anton committed
644

anton's avatar
anton committed
645 646
>TARGET

jwilke's avatar
jwilke committed
647 648
\ \ Target Memory Handling

anton's avatar
anton committed
649 650
\ Byte ordering and cell size                          06oct92py

pazsan's avatar
pazsan committed
651 652
: cell+         tcell + ;
: cells         tcell<< lshift ;
653 654
: chars         tchar * ;
: char+		tchar + ;
pazsan's avatar
pazsan committed
655
: floats	tfloat * ;
656
    
anton's avatar
anton committed
657
>CROSS
pazsan's avatar
pazsan committed
658
: cell/         tcell<< rshift ;
anton's avatar
anton committed
659 660
>TARGET
20 CONSTANT bl
jwilke's avatar
jwilke committed
661
\ TNIL Constant NIL
anton's avatar
anton committed
662 663 664

>CROSS

665 666
bigendian
[IF]
jwilke's avatar
jwilke committed
667
   : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
668
     DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
jwilke's avatar
jwilke committed
669
   : S@  ( addr -- n )  >r 0 0 r> tcell bounds
670
     DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
671 672 673 674
   : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
     DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
   : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
     DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
pazsan's avatar
pazsan committed
675
[ELSE]
jwilke's avatar
jwilke committed
676
   : S!  ( n addr -- )  >r s>d r> tcell bounds
677
     DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
jwilke's avatar
jwilke committed
678
   : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
679
     DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
680 681 682 683
   : Sc!  ( n addr -- )  >r s>d r> tchar bounds
     DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
   : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
     DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
anton's avatar
anton committed
684 685
[THEN]

jwilke's avatar
jwilke committed
686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711
: taddr>region ( taddr -- region | 0 )
\G finds for a target-address the correct region
\G returns 0 if taddr is not in range of a target memory region
  region-link
  BEGIN @ dup
  WHILE dup >r
        0 >rlink - >r
        r@ >rlen @
        IF      dup r@ borders within
                IF r> r> drop nip EXIT THEN
        THEN
        r> drop
        r>
  REPEAT
  2drop 0 ;

: (>regionimage) ( taddr -- 'taddr )
  dup
  \ find region we want to address
  taddr>region dup 0= ABORT" Address out of range!"
  >r
  \ calculate offset in region
  r@ >rstart @ -
  \ add regions real address in our memory
  r> >rmem @ + ;

anton's avatar
anton committed
712 713 714 715 716 717 718
\ Bit string manipulation                               06oct92py
\                                                       9may93jaw
CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
: bits ( n -- n ) chars Bittable + c@ ;

: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
: +bit ( addr n -- )  >bit over c@ or swap c! ;
pazsan's avatar
pazsan committed
719
: -bit ( addr n -- )  >bit invert over c@ and swap c! ;
jwilke's avatar
jwilke committed
720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738

: (relon) ( taddr -- )  bit$ @ swap cell/ +bit ;
: (reloff) ( taddr -- ) bit$ @ swap cell/ -bit ;

: (>image) ( taddr -- absaddr ) image @ + ;

DEFER >image
DEFER relon
DEFER reloff
DEFER correcter

T has? relocate H
[IF]
' (relon) IS relon
' (reloff) IS reloff
' (>image) IS >image
[ELSE]
' drop IS relon
' drop IS reloff
jwilke's avatar
jwilke committed
739
' (>regionimage) IS >image
jwilke's avatar
jwilke committed
740
[THEN]
anton's avatar
anton committed
741 742 743 744

\ Target memory access                                 06oct92py

: align+  ( taddr -- rest )
anton's avatar
anton committed
745
    tcell tuck 1- and - [ tcell 1- ] Literal and ;
746
: cfalign+  ( taddr -- rest )
pazsan's avatar
pazsan committed
747
    \ see kernel.fs:cfaligned
pazsan's avatar
pazsan committed
748
    /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
anton's avatar
anton committed
749 750 751 752 753

>TARGET
: aligned ( taddr -- ta-addr )  dup align+ + ;
\ assumes cell alignment granularity (as GNU C)

754
: cfaligned ( taddr1 -- taddr2 )
pazsan's avatar
pazsan committed
755
    \ see kernel.fs
756 757
    dup cfalign+ + ;

jwilke's avatar
jwilke committed
758 759
: @  ( taddr -- w )     >image S@ ;
: !  ( w taddr -- )     >image S! ;
760 761
: c@ ( taddr -- char )  >image Sc@ ;
: c! ( char taddr -- )  >image Sc! ;
762 763
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
: 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
anton's avatar
anton committed
764 765 766 767 768 769

\ Target compilation primitives                        06oct92py
\ included A!                                          16may93jaw

: here  ( -- there )    there ;
: allot ( n -- )        tdp +! ;
jwilke's avatar
jwilke committed
770
: ,     ( w -- )        T here H tcell T allot  ! H T here drop H ;
771
: c,    ( char -- )     T here    tchar allot c! H ;
jwilke's avatar
jwilke committed
772
: align ( -- )          T here H align+ 0 ?DO  bl T c, tchar H +LOOP ;
773
: cfalign ( -- )
774
    T here H cfalign+ 0 ?DO  bl T c, tchar H +LOOP ;
anton's avatar
anton committed
775

776
: >address		dup 0>= IF tbyte / THEN ; \ ?? jaw 
777 778
: A!                    swap >address swap dup relon T ! H ;
: A,    ( w -- )        >address T here H relon T , H ;
anton's avatar
anton committed
779 780 781

>CROSS

jwilke's avatar
jwilke committed
782 783
: tcmove ( source dest len -- )
\G cmove in target memory
784
  tchar * bounds
jwilke's avatar
jwilke committed
785
  ?DO  dup T c@ H I T c! H 1+
786
  tchar +LOOP  drop ;
anton's avatar
anton committed
787

jwilke's avatar
jwilke committed
788 789
\ \ Load Assembler

anton's avatar
anton committed
790
>TARGET
jwilke's avatar
jwilke committed
791
H also Forth definitions
anton's avatar
anton committed
792

jwilke's avatar
jwilke committed
793 794 795 796 797 798
: X 	also target bl word find
	IF	state @ IF compile,
		ELSE execute THEN
	ELSE	previous ABORT" Cross: access method not supported!"
	THEN 
	previous ; immediate
anton's avatar
anton committed
799

jwilke's avatar
jwilke committed
800
[IFDEF] asm-include asm-include [THEN] hex
anton's avatar
anton committed
801

jwilke's avatar
jwilke committed
802 803 804 805 806
previous
>CROSS H

\ \ --------------------        Compiler Plug Ins               01aug97jaw

pazsan's avatar
pazsan committed
807 808 809 810 811 812 813 814
\  Compiler States

Variable comp-state
0 Constant interpreting
1 Constant compiling
2 Constant resolving
3 Constant assembling

jwilke's avatar
jwilke committed
815 816
Defer lit, ( n -- )
Defer alit, ( n -- )
pazsan's avatar
pazsan committed
817 818 819 820 821 822 823 824 825 826 827

Defer branch, ( target-addr -- )	\ compiles a branch
Defer ?branch, ( target-addr -- )	\ compiles a ?branch
Defer branchmark, ( -- branch-addr )	\ reserves room for a branch
Defer ?branchmark, ( -- branch-addr )	\ reserves room for a ?branch
Defer ?domark, ( -- branch-addr )	\ reserves room for a ?do branch
Defer branchto, ( -- )			\ actual program position is target of a branch (do e.g. alignment)
Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
Defer branchfrom, ( -- )		\ ?!
Defer branchtomark, ( -- target-addr )	\ marks a branch destination

jwilke's avatar
jwilke committed
828
Defer colon, ( tcfa -- )		\ compiles call to tcfa at current position
pazsan's avatar
pazsan committed
829
Defer colonmark, ( -- addr )		\ marks a colon call
jwilke's avatar
jwilke committed
830
Defer colon-resolve ( tcfa addr -- )
pazsan's avatar
pazsan committed
831

jwilke's avatar
jwilke committed
832
Defer addr-resolve ( target-addr addr -- )
pazsan's avatar
pazsan committed
833 834 835 836 837 838 839 840
Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )

Defer do,	( -- do-token )
Defer ?do,	( -- ?do-token )
Defer for,	( -- for-token )
Defer loop,	( do-token / ?do-token -- )
Defer +loop,	( do-token / ?do-token -- )
Defer next,	( for-token )
anton's avatar
anton committed
841

jwilke's avatar
jwilke committed
842 843 844
[IFUNDEF] ca>native
defer ca>native	
[THEN]
anton's avatar
anton committed
845

jwilke's avatar
jwilke committed
846 847 848 849 850
>TARGET
DEFER >body             \ we need the system >body
			\ and the target >body
>CROSS
T 2 cells H VALUE xt>body
pazsan's avatar
pazsan committed
851 852
DEFER doprim,	\ compiles start of a primitive
DEFER docol,   	\ compiles start of a colon definition
jwilke's avatar
jwilke committed
853 854 855 856
DEFER doer,		
DEFER fini,      \ compiles end of definition ;s
DEFER doeshandler,
DEFER dodoes,
anton's avatar
anton committed
857

jwilke's avatar
jwilke committed
858 859
DEFER ]comp     \ starts compilation
DEFER comp[     \ ends compilation
anton's avatar
anton committed
860

pazsan's avatar
pazsan committed
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875
: (cc) T a, H ;					' (cc) IS colon,

: (cr) >tempdp ]comp colon, comp[ tempdp> ; 	' (cr) IS colon-resolve
: (ar) T ! H ;					' (ar) IS addr-resolve
: (dr)  ( ghost res-pnt target-addr addr )
	>tempdp drop over 
	dup >magic @ <do:> =
	IF 	doer,
	ELSE	dodoes,
	THEN 
	tempdp> ;				' (dr) IS doer-resolve

: (cm) ( -- addr )
    T here align H
    -1 colon, ;					' (cm) IS colonmark,
anton's avatar
anton committed
876

jwilke's avatar
jwilke committed
877 878 879
>TARGET
: compile, colon, ;
>CROSS
anton's avatar
anton committed
880

jwilke's avatar
jwilke committed
881 882
\ file loading

pazsan's avatar
pazsan committed
883 884 885
: >fl-id   1 cells + ;
: >fl-name 2 cells + ;

jwilke's avatar
jwilke committed
886
Variable filelist 0 filelist !
jwilke's avatar
jwilke committed
887
Create NoFile ," #load-file#"
pazsan's avatar
pazsan committed
888
0 Value	 filemem
jwilke's avatar
jwilke committed
889
: loadfile  FileMem ?dup IF >fl-name ELSE NoFile THEN ;
jwilke's avatar
jwilke committed
890

pazsan's avatar
pazsan committed
891
1 [IF] \ !! JAW WIP
anton's avatar
anton committed
892

jwilke's avatar
jwilke committed
893
: add-included-file ( adr len -- )
pazsan's avatar
pazsan committed
894 895
	dup char+ >fl-name allocate throw >r
	r@ >fl-name place
jwilke's avatar
jwilke committed
896
	filelist @ r@ !
pazsan's avatar
pazsan committed
897 898
	r> dup filelist ! to FileMem
	;
jwilke's avatar
jwilke committed
899 900 901 902 903 904 905 906 907 908

: included? ( c-addr u -- f )
  	filelist
	BEGIN	@ dup
	WHILE	>r r@ 1 cells + count compare 0=
		IF rdrop 2drop true EXIT THEN
		r>
	REPEAT
	2drop drop false ;	

jwilke's avatar
jwilke committed
909 910
false DebugFlag showincludedfiles

jwilke's avatar
jwilke committed
911
: included 
jwilke's avatar
jwilke committed
912 913
	[d?] showincludedfiles
	IF	cr ." Including: " 2dup type ." ..." THEN
pazsan's avatar
pazsan committed
914 915 916
	FileMem >r
	2dup add-included-file included 
	r> to FileMem ;
jwilke's avatar
jwilke committed
917 918 919 920 921 922

: include bl word count included ;

: require bl word count included ;

[THEN]
anton's avatar
anton committed
923

jwilke's avatar
jwilke committed
924
\ resolve structure
anton's avatar
anton committed
925

jwilke's avatar
jwilke committed
926
: >next ;		\ link to next field
pazsan's avatar
pazsan committed
927
: >tag cell+ ;		\ indecates type of reference: 0: call, 1: address, 2: doer
jwilke's avatar
jwilke committed
928
: >taddr cell+ cell+ ;	
jwilke's avatar
jwilke committed
929
: >ghost 3 cells + ;
jwilke's avatar
jwilke committed
930 931
: >file 4 cells + ;
: >line 5 cells + ;
anton's avatar
anton committed
932

pazsan's avatar
pazsan committed
933 934 935 936 937 938 939 940 941 942
: (refered) ( ghost addr tag -- )
\G creates a reference to ghost at address taddr
    rot >r here r@ >link @ , r> >link ! 
    ( taddr tag ) ,
    ( taddr ) , 
    last-header-ghost @ , 
    loadfile , 
    sourceline# , 
  ;

jwilke's avatar
jwilke committed
943
: refered ( ghost tag -- )
jwilke's avatar
jwilke committed
944
\G creates a resolve structure
pazsan's avatar
pazsan committed
945 946 947 948 949 950 951 952 953 954 955 956 957
    T here aligned H swap (refered)
  ;

: killref ( addr ghost -- )
\G kills a forward reference to ghost at position addr
\G this is used to eleminate a :dovar refence after making a DOES>
    dup >magic @ <fwd> <> IF 2drop EXIT THEN
    swap >r >link
    BEGIN dup @ dup  ( addr last this )
    WHILE dup >taddr @ r@ =
 	 IF   @ over !
	 ELSE nip THEN
    REPEAT rdrop 2drop 
jwilke's avatar
jwilke committed
958
  ;
anton's avatar
anton committed
959

jwilke's avatar
jwilke committed
960
Defer resolve-warning
anton's avatar
anton committed
961

jwilke's avatar
jwilke committed
962 963
: reswarn-test ( ghost res-struct -- ghost res-struct )
  over cr ." Resolving " >ghostname type dup ."  in " >ghost @ >ghostname type ;
anton's avatar
anton committed
964

jwilke's avatar
jwilke committed
965 966 967
: reswarn-forward ( ghost res-struct -- ghost res-struct )
  over warnhead >ghostname type dup ."  is referenced in " 
  >ghost @ >ghostname type ;
anton's avatar
anton committed
968

jwilke's avatar
jwilke committed
969 970
\ ' reswarn-test IS resolve-warning
 
anton's avatar
anton committed
971 972
\ resolve                                              14oct92py

pazsan's avatar
pazsan committed
973 974 975 976 977 978 979 980 981 982 983 984 985 986
 : resolve-loop ( ghost resolve-list tcfa -- )
    >r
    BEGIN dup WHILE 
\  	  dup >tag @ 2 = IF reswarn-forward THEN
	  resolve-warning 
	  r@ over >taddr @ 
	  2 pick >tag @
	  CASE	0 OF colon-resolve ENDOF
		1 OF addr-resolve ENDOF
		2 OF doer-resolve ENDOF
	  ENDCASE
	  @ \ next list element
    REPEAT 2drop rdrop 
  ;
jwilke's avatar
jwilke committed
987 988 989 990

\ : resolve-loop ( ghost tcfa -- ghost tcfa )
\  >r dup >link @
\  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
anton's avatar
anton committed
991 992 993

\ exists                                                9may93jaw

jwilke's avatar
jwilke committed
994 995 996 997 998
Variable TWarnings
TWarnings on
Variable Exists-Warnings
Exists-Warnings on

anton's avatar
anton committed
999 1000 1001 1002 1003
: exists ( ghost tcfa -- )
  over GhostNames
  BEGIN @ dup
  WHILE 2dup cell+ @ =
  UNTIL
jwilke's avatar
jwilke committed
1004 1005 1006 1007 1008
        2 cells + count
        TWarnings @ Exists-Warnings @ and
        IF warnhead type ."  exists"
        ELSE 2drop THEN
        drop swap >link !
pazsan's avatar
pazsan committed
1009
  ELSE  true abort" CROSS: Ghostnames inconsistent "
anton's avatar
anton committed
1010 1011 1012
  THEN ;

: resolve  ( ghost tcfa -- )
pazsan's avatar
pazsan committed
1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
\G resolve referencies to ghost with tcfa
    \ is ghost resolved?, second resolve means another definition with the
    \ same name
    over forward? 0= IF  exists EXIT THEN
    \ get linked-list
    swap >r r@ >link @ swap \ ( list tcfa R: ghost )
    \ mark ghost as resolved
    dup r@ >link ! <res> r@ >magic !
    \ loop through forward referencies
    r> -rot 
    comp-state @ >r Resolving comp-state !
    resolve-loop 
    r> comp-state !

    ['] noop IS resolve-warning 
jwilke's avatar
jwilke committed
1028
  ;
anton's avatar
anton committed
1029 1030 1031

\ gexecute ghost,                                      01nov92py

jwilke's avatar
jwilke committed
1032
: is-forward   ( ghost -- )
pazsan's avatar
pazsan committed
1033
  colonmark, 0 (refered) ; \ compile space for call
jwilke's avatar
jwilke committed
1034 1035 1036 1037 1038 1039 1040 1041 1042

: is-resolved   ( ghost -- )
  >link @ colon, ; \ compile-call

: gexecute   ( ghost -- )
  dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;

: addr,  ( ghost -- )
  dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
anton's avatar
anton committed
1043

jwilke's avatar
jwilke committed
1044
\ !! : ghost,     ghost  gexecute ;
anton's avatar
anton committed
1045 1046 1047 1048 1049 1050 1051

\ .unresolved                                          11may93jaw

variable ResolveFlag

\ ?touched                                             11may93jaw

jwilke's avatar
jwilke committed
1052
: ?touched ( ghost -- flag ) dup forward? swap >link @
anton's avatar
anton committed
1053 1054
                               0 <> and ;

jwilke's avatar
jwilke committed
1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065
: .forwarddefs ( ghost -- )
	."  appeared in:"
	>link
	BEGIN	@ dup
	WHILE	cr 5 spaces
		dup >ghost @ >ghostname type
		."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
		."  line " dup >line @ .dec
	REPEAT 
	drop ;

anton's avatar
anton committed
1066 1067
: ?resolved  ( ghostname -- )
  dup cell+ @ ?touched
jwilke's avatar
jwilke committed
1068 1069 1070 1071 1072
  IF  	dup 
	cell+ cell+ count cr type ResolveFlag on 
	cell+ @ .forwarddefs
  ELSE 	drop 
  THEN ;
anton's avatar
anton committed
1073 1074 1075 1076 1077 1078 1079

>MINIMAL
: .unresolved  ( -- )
  ResolveFlag off cr ." Unresolved: "
  Ghostnames
  BEGIN @ dup
  WHILE dup ?resolved
anton's avatar
anton committed
1080 1081
  REPEAT drop ResolveFlag @
  IF
anton's avatar
anton committed
1082
      -1 abort" Unresolved words!"
anton's avatar
anton committed
1083 1084 1085 1086
  ELSE
      ." Nothing!"
  THEN
  cr ;
anton's avatar
anton committed
1087

jwilke's avatar
jwilke committed
1088 1089 1090 1091 1092
: .stats
  base @ >r decimal
  cr ." named Headers: " headers-named @ . 
  r> base ! ;

anton's avatar
anton committed
1093 1094 1095 1096 1097 1098 1099 1100
>CROSS
\ Header states                                        12dec92py

: flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;

VARIABLE ^imm

>TARGET
1101
: immediate     40 flag!
1102
                ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
anton's avatar
anton committed
1103 1104
                <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                <imm> ^imm @ ! ;
1105
: restrict      20 flag! ;
jwilke's avatar
jwilke committed
1106

pazsan's avatar
pazsan committed
1107 1108 1109 1110
: isdoer	
\G define a forth word as doer, this makes obviously only sence on
\G forth processors such as the PSC1000
		<do:> last-header-ghost @ >magic ! ;
anton's avatar
anton committed
1111 1112 1113 1114 1115 1116
>CROSS

\ ALIAS2 ansforth conform alias                          9may93jaw

: ALIAS2 create here 0 , DOES> @ execute ;
\ usage:
1117
\ ' <name> alias2 bla !
anton's avatar
anton committed
1118 1119 1120

\ Target Header Creation                               01nov92py

jwilke's avatar
jwilke committed
1121
>TARGET
anton's avatar
anton committed
1122
: string,  ( addr count -- )
pazsan's avatar
pazsan committed
1123
  dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
jwilke's avatar
jwilke committed
1124
: name,  ( "name" -- )  bl word count T string, cfalign H ;
anton's avatar
anton committed
1125
: view,   ( -- ) ( dummy ) ;
jwilke's avatar
jwilke committed
1126
>CROSS
anton's avatar
anton committed
1127

1128 1129
\ Target Document Creation (goes to crossdoc.fd)       05jul95py

pazsan's avatar
pazsan committed
1130
s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1131 1132
\ contains the file-id of the documentation file

pazsan's avatar
pazsan committed
1133
: T-\G ( -- )
1134
    source >in @ /string doc-file-id write-line throw
pazsan's avatar
pazsan committed
1135
    postpone \ ;
1136

pazsan's avatar
pazsan committed
1137
Variable to-doc  to-doc on
1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149

: cross-doc-entry  ( -- )
    to-doc @ tlast @ 0<> and	\ not an anonymous (i.e. noname) header
    IF
	s" " doc-file-id write-line throw
	s" make-doc " doc-file-id write-file throw
	tlast @ >image count $1F and doc-file-id write-file throw
	>in @
	[char] ( parse 2drop
	[char] ) parse doc-file-id write-file throw
	s"  )" doc-file-id write-file throw
	[char] \ parse 2drop					
pazsan's avatar
pazsan committed
1150
	T-\G
1151
	>in !
pazsan's avatar
pazsan committed
1152
    THEN ;
1153

pazsan's avatar
pazsan committed
1154 1155
\ Target TAGS creation

pazsan's avatar
pazsan committed
1156
s" kernel.TAGS" r/w create-file throw value tag-file-id
pazsan's avatar
pazsan committed
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168
\ contains the file-id of the tags file

Create tag-beg 2 c,  7F c, bl c,
Create tag-end 2 c,  bl c, 01 c,
Create tag-bof 1 c,  0C c,

2variable last-loadfilename 0 0 last-loadfilename 2!
	    
: put-load-file-name ( -- )
    loadfilename 2@ last-loadfilename 2@ d<>
    IF
	tag-bof count tag-file-id write-line throw
1169
	sourcefilename 2dup
pazsan's avatar
pazsan committed
1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182
	tag-file-id write-file throw
	last-loadfilename 2!
	s" ,0" tag-file-id write-line throw
    THEN ;

: cross-tag-entry  ( -- )
    tlast @ 0<>	\ not an anonymous (i.e. noname) header
    IF
	put-load-file-name
	source >in @ min tag-file-id write-file throw
	tag-beg count tag-file-id write-file throw
	tlast @ >image count $1F and tag-file-id write-file throw
	tag-end count tag-file-id write-file throw
1183
	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
pazsan's avatar
pazsan committed
1184 1185 1186 1187 1188
\	>in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
	s" ,0" tag-file-id write-line throw
	base !
    THEN ;

pazsan's avatar
pazsan committed
1189 1190 1191 1192 1193
\ Check for words

Defer skip? ' false IS skip?

: defined? ( -- flag ) \ name
jwilke's avatar
jwilke committed
1194
    ghost forward? 0= ;
pazsan's avatar
pazsan committed
1195 1196

: needed? ( -- flag ) \ name
anton's avatar
anton committed
1197 1198 1199 1200 1201
\G returns a false flag when
\G a word is not defined
\G a forward reference exists
\G so the definition is not skipped!
    bl word gfind
jwilke's avatar
jwilke committed
1202
    IF dup forward?
anton's avatar
anton committed
1203 1204 1205
	nip
	0=
    ELSE  drop true  THEN ;
pazsan's avatar
pazsan committed
1206

1207 1208 1209
: doer? ( -- flag ) \ name
    ghost >magic @ <do:> = ;

pazsan's avatar
pazsan committed
1210 1211 1212
: skip-defs ( -- )
    BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;

pazsan's avatar
pazsan committed
1213 1214
\ Target header creation

pazsan's avatar
pazsan committed
1215 1216
Variable CreateFlag
CreateFlag off
jwilke's avatar
jwilke committed
1217

pazsan's avatar
pazsan committed
1218 1219
Variable NoHeaderFlag
NoHeaderFlag off
anton's avatar
anton committed
1220

pazsan's avatar
pazsan committed
1221 1222 1223 1224
: 0.r ( n1 n2 -- ) 
    base @ >r hex 
    0 swap <# 0 ?DO # LOOP #> type 
    r> base ! ;
jwilke's avatar
jwilke committed
1225 1226 1227 1228 1229 1230 1231
: .sym
  bounds 
  DO I c@ dup
	CASE	'/ OF drop ." \/" ENDOF
		'\ OF drop ." \\" ENDOF
		dup OF emit ENDOF
	ENDCASE
pazsan's avatar
pazsan committed
1232
    LOOP ;
jwilke's avatar
jwilke committed
1233

pazsan's avatar
pazsan committed
1234
: (Theader ( "name" -- ghost )
pazsan's avatar
pazsan committed
1235 1236 1237 1238 1239 1240 1241 1242
    \  >in @ bl word count type 2 spaces >in !
    \ wordheaders will always be compiled to rom
    switchrom
    \ build header in target
    NoHeaderFlag @
    IF  NoHeaderFlag off
    ELSE
	T align H view,
1243
	tlast @ dup 0> IF  T 1 cells - H THEN T A, H  there tlast !
pazsan's avatar
pazsan committed
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265
	1 headers-named +!	\ Statistic
	>in @ T name, H >in !
    THEN
    T cfalign here H tlastcfa !
    \ Symbol table
\    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
    CreateFlag @
    IF
	>in @ alias2 swap >in !         \ create alias in target
	>in @ ghost swap >in !
	swap also ghosts ' previous swap !     \ tick ghost and store in alias
	CreateFlag off
    ELSE ghost
    THEN
    dup Last-Header-Ghost !
    dup >magic ^imm !     \ a pointer for immediate
    Already @
    IF  dup >end tdoes !
    ELSE 0 tdoes !
    THEN
    80 flag!
    cross-doc-entry cross-tag-entry ;
anton's avatar
anton committed
1266 1267

VARIABLE ;Resolve 1 cells allot
jwilke's avatar
jwilke committed
1268 1269
\ this is the resolver information from ":"
\ resolving is done by ";"
anton's avatar
anton committed
1270

1271 1272
: Theader  ( "name" -- ghost )
  (THeader dup there resolve 0 ;Resolve ! ;
anton's avatar
anton committed
1273 1274 1275

>TARGET
: Alias    ( cfa -- ) \ name
pazsan's avatar
pazsan committed
1276
    >in @ skip? IF  2drop  EXIT  THEN  >in !
jwilke's avatar
jwilke committed
1277
    dup 0< s" prims" T $has? H 0= and
pazsan's avatar
pazsan committed
1278
    IF
jwilke's avatar
jwilke committed
1279
	.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
pazsan's avatar
pazsan committed
1280 1281
    THEN
    (THeader over resolve T A, H 80 flag! ;
1282
: Alias:   ( cfa -- ) \ name
pazsan's avatar
pazsan committed
1283
    >in @ skip? IF  2drop  EXIT  THEN  >in !
jwilke's avatar
jwilke committed
1284
    dup 0< s" prims" T $has? H 0= and
pazsan's avatar
pazsan committed
1285
    IF
jwilke's avatar
jwilke committed
1286
	.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
pazsan's avatar
pazsan committed
1287 1288
    THEN
    ghost tuck swap resolve <do:> swap >magic ! ;
1289 1290 1291 1292 1293

Variable prim#
: first-primitive ( n -- )  prim# ! ;
: Primitive  ( -- ) \ name
    prim# @ T Alias H  -1 prim# +! ;
anton's avatar
anton committed
1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320
>CROSS

\ Conditionals and Comments                            11may93jaw

: ;Cond
  postpone ;
  swap ! ;  immediate

: Cond: ( -- ) \ name {code } ;
  atonce on
  ghost
  >exec
  :NONAME ;

: restrict? ( -- )
\ aborts on interprete state - ae
  state @ 0= ABORT" CROSS: Restricted" ;

: Comment ( -- )
  >in @ atonce on ghost swap >in ! ' swap >exec ! ;

Comment (       Comment \

\ compile                                              10may93jaw

: compile  ( -- ) \ name
  restrict?
pazsan's avatar
pazsan committed
1321
  bl word gfind dup 0= ABORT" CROSS: Can't compile "
anton's avatar
anton committed
1322 1323 1324 1325 1326
  0> ( immediate? )
  IF    >exec @ compile,
  ELSE  postpone literal postpone gexecute  THEN ;
                                        immediate

jwilke's avatar
jwilke committed
1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353
: [G'] 
\G ticks a ghost and returns its address
  bl word gfind 0= ABORT" CROSS: Ghost don't exists"
  state @
  IF   postpone literal
  THEN ; immediate

: ghost>cfa
  dup forward? ABORT" CROSS: forward " >link @ ;
               
>TARGET

: '  ( -- cfa ) 
\ returns the target-cfa of a ghost
  bl word gfind 0= ABORT" CROSS: Ghost don't exists"
  ghost>cfa ;

Cond: [']  T ' H alit, ;Cond

>CROSS

: [T']
\ returns the target-cfa of a ghost, or compiles it as literal
  postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate

\ \ threading modell					13dec92py
\ modularized						14jun97jaw
1354

jwilke's avatar
jwilke committed
1355
: fillcfa   ( usedcells -- )
1356
  T cells H xt>body swap - 0 ?DO 0 T c, tchar H +LOOP ;
jwilke's avatar
jwilke committed
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376

: (>body)   ( cfa -- pfa ) xt>body + ;		' (>body) T IS >body H

: (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,

: (docol,)  ( -- ) [G'] :docol doer, ;		' (docol,) IS docol,

: (doprim,) ( -- )
  there xt>body + ca>native T a, H 1 fillcfa ;	' (doprim,) IS doprim,

: (doeshandler,) ( -- ) 
  T cfalign H compile :doesjump T 0 , H ; 	' (doeshandler,) IS doeshandler,

: (dodoes,) ( does-action-ghost -- )
  ]comp [G'] :dodoes gexecute comp[
  addr,
  T here H tcell - reloff 2 fillcfa ;		' (dodoes,) IS dodoes,

: (lit,) ( n -- )   compile lit T  ,  H ;	' (lit,) IS lit,

jwilke's avatar
jwilke committed
1377 1378 1379
\ if we dont produce relocatable code alit, defaults to lit, jaw
has? relocate
[IF]
pazsan's avatar
pazsan committed
1380
: (alit,) ( n -- )  compile lit T  a, H ;	' (alit,) IS alit,
jwilke's avatar
jwilke committed
1381 1382 1383
[ELSE]
: (alit,) ( n -- )  lit, ;			' (alit,) IS alit,
[THEN]
jwilke's avatar
jwilke committed
1384 1385

: (fini,)         compile ;s ;                ' (fini,) IS fini,
1386

pazsan's avatar
pazsan committed
1387 1388 1389 1390 1391
[IFUNDEF] (code) 
Defer (code)
Defer (end-code)
[THEN]

anton's avatar
anton committed
1392
>TARGET
pazsan's avatar
pazsan committed
1393
: Code
jwilke's avatar
jwilke committed
1394
  defempty?
anton's avatar
anton committed
1395
  (THeader there resolve
jwilke's avatar
jwilke committed
1396
  [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
jwilke's avatar
jwilke committed
1397
  doprim, 
anton's avatar
anton committed
1398 1399
  [THEN]
  depth (code) ;
pazsan's avatar
pazsan committed
1400 1401

: Code:
jwilke's avatar
jwilke committed
1402
  defempty?
anton's avatar
anton committed
1403
    ghost dup there ca>native resolve  <do:> swap >magic !
pazsan's avatar
pazsan committed
1404 1405 1406
    depth (code) ;

: end-code
jwilke's avatar
jwilke committed
1407
    (end-code)
pazsan's avatar
pazsan committed
1408 1409
    depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
    ELSE true ABORT" CROSS: Stack empty" THEN
jwilke's avatar
jwilke committed
1410
    ;
anton's avatar
anton committed
1411

1412
( Cond ) : chars tchar * ; ( Cond )
1413

anton's avatar
anton committed
1414 1415
>CROSS

jwilke's avatar
jwilke committed
1416
\ tLiteral                                             12dec92py
anton's avatar
anton committed
1417 1418

>TARGET
pazsan's avatar
pazsan committed
1419 1420
Cond: \G  T-\G ;Cond

anton's avatar
anton committed
1421 1422 1423 1424 1425 1426
Cond:  Literal ( n -- )   restrict? lit, ;Cond
Cond: ALiteral ( n -- )   restrict? alit, ;Cond

: Char ( "<char>" -- )  bl word char+ c@ ;
Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond

pazsan's avatar
pazsan committed
1427 1428
\ some special literals					27jan97jaw

jwilke's avatar
jwilke committed
1429 1430 1431
\ !! Known Bug: Special Literals and plug-ins work only correct
\ on 16 and 32 Bit Targets and 32 Bit Hosts!

pazsan's avatar
pazsan committed
1432
Cond: MAXU
jwilke's avatar
jwilke committed
1433 1434 1435 1436 1437
  restrict? 
  tcell 1 cells u> 
  IF	compile lit tcell 0 ?DO FF T c, H LOOP 
  ELSE	$ffffffff lit, THEN
  ;Cond
pazsan's avatar
pazsan committed
1438 1439

Cond: MINI
jwilke's avatar
jwilke committed
1440 1441 1442 1443 1444 1445 1446 1447
  restrict?
  tcell 1 cells u>
  IF	compile lit bigendian 
  	IF	80 T c, H tcell 1 ?DO 0 T c, H LOOP 
  	ELSE  	tcell 1 ?DO 0 T c, H LOOP 80 T c, H
  	THEN
  ELSE	tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN
  ;Cond
pazsan's avatar
pazsan committed
1448 1449
 
Cond: MAXI
jwilke's avatar
jwilke committed
1450 1451 1452 1453 1454 1455 1456
 restrict?
 tcell 1 cells u>
 IF	compile lit bigendian 
	IF 	7F T c, H tcell 1 ?DO FF T c, H LOOP
	ELSE 	tcell 1 ?DO FF T c, H LOOP 7F T c, H
 	THEN
 ELSE	tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN
pazsan's avatar
pazsan committed
1457 1458
 ;Cond

anton's avatar
anton committed
1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476
>CROSS
\ Target compiling loop                                12dec92py
\ ">tib trick thrown out                               10may93jaw
\ number? defined at the top                           11may93jaw

\ compiled word might leave items on stack!
: tcom ( in name -- )
  gfind  ?dup  IF    0> IF    nip >exec @ execute
                        ELSE  nip gexecute  THEN EXIT THEN
  number? dup  IF    0> IF swap lit,  THEN  lit,  drop
               ELSE  2drop >in !
               ghost gexecute THEN  ;

>TARGET
\ : ; DOES>                                            13dec92py
\ ]                                                     9may93py/jaw

: ] state on
pazsan's avatar
pazsan committed
1477
    Compiling comp-state !
anton's avatar
anton committed
1478
    BEGIN
pazsan's avatar
pazsan committed
1479
        BEGIN >in @ bl word
anton's avatar
anton committed
1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490