mirror of
https://github.com/forth-ev/VolksForth.git
synced 2024-11-25 10:30:57 +00:00
681 lines
42 KiB
Forth
681 lines
42 KiB
Forth
\ *** Block No. 0 Hexblock 0
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\\ *** volksFORTH-84 Target-Compiler ***
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Mit dem Target-Compiler l„žt sich ein neues System aus dem
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Quelltext FORTH_83.SCR 'hochziehen'.
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\ *** Block No. 1 Hexblock 1
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\ Target compiler loadscr 09sep86we
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\ Idea and first Implementation by ks/bp
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\ Implemented on 6502 by ks/bp
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\ ultraFORTH83-Version by bp/we
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\ Atari 520 ST - Version by we
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Onlyforth Assembler nonrelocate
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07 Constant imagepage \ Virtual memory bank
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Vocabulary Ttools
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Vocabulary Defining
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: .stat .blk .s ; ' .stat Is .status
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\ : 65( [compile] ( ; immediate
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: 65( ; immediate : ) ; immediate \ cpu-addressing|lbyte|hbyte|
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1 $14 +thru \ Target compiler
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$15 $17 +thru \ Target Tools
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$18 $1A +thru \ Redefinitions
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save $1B $25 +thru \ Predefinitions
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\ *** Block No. 2 Hexblock 2
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\ Target header pointers bp05mar86we
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Variable tdp : there tdp @ ;
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Variable displace
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Variable ?thead 0 ?thead !
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Variable tlast 0 tlast !
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Variable glast' 0 glast' !
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Variable tdoes>
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Variable >in:
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Variable tvoc 0 tvoc !
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Variable tvoc-link 0 tvoc-link !
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Variable tnext-link 0 tnext-link !
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Variable tdodo
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Variable tfile-link 0 tfile-link !
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: c+! ( 8b addr -- ) dup c@ rot + swap c! ;
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\ *** Block No. 3 Hexblock 3
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\ Image and byteorder 15sep86we
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: >image ( addr1 - addr2 ) displace @ - ;
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: >heap ( from quan - )
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heap over - 1 and + \ 68000-align
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dup hallot heap swap cmove ;
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\ : >ascii 2drop ; ' noop Alias C64>ascii
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Code Lc@ ( laddr -- 8b )
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.l SP )+ A0 move .w D0 clr .b A0 ) D0 move
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.w D0 SP -) move Next end-code
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Code Lc! ( 8b addr -- )
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.l SP )+ A0 move .w SP )+ D0 move .b D0 A0 ) move
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Next end-code
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\ *** Block No. 4 Hexblock 4
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\ Ghost-creating 05mar86we
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0 | Constant <forw> 0 | Constant <res>
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| : Make.ghost ( - cfa.ghost )
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here dup 1 and allot here
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state @ IF context @ ELSE current THEN @
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dup @ , name
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dup c@ 1 $1F uwithin not abort" inval.Gname"
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dup c@ 1+ over c!
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c@ dup 1+ allot 1 and 0= IF bl c, THEN
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here 2 pick - -rot
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<forw> , 0 , 0 ,
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swap here over - >heap
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heap swap ! swap dp !
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heap + ;
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\ *** Block No. 5 Hexblock 5
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\ ghost words 05mar86we
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: gfind ( string - cfa tf / string ff )
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dup count + 1+ bl swap c!
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dup >r 1 over c+! find -1 r> c+! ;
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: ghost ( - cfa )
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>in @ name gfind IF nip exit THEN
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drop >in ! Make.ghost ;
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: Word, ghost execute ;
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: gdoes> ( cfa.ghost - cfa.does )
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4+ dup @ IF @ exit THEN
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here dup <forw> , 0 , 4 >heap
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dp ! heap dup rot ! ;
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\ *** Block No. 6 Hexblock 6
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\ ghost utilities 04dec85we
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: g' name gfind 0= abort" ?" ;
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: '.
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g' dup @ <forw> case?
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IF ." forw" ELSE <res> - abort" ??" ." res" THEN
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2+ dup @ 5 u.r
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2+ @ ?dup
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IF dup @ <forw> case?
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IF ." fdef" ELSE <res> - abort" ??" ." rdef" THEN
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2+ @ 5 u.r THEN ;
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' ' Alias h'
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\ *** Block No. 7 Hexblock 7
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\ .unresolved 05mar86we
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| : forward? ( cfa - cfa / exit&true )
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dup @ <forw> = over 2+ @ and IF drop true rdrop exit THEN ;
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| : unresolved? ( addr - f )
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2+ dup c@ $1F and over + c@ BL =
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IF name> forward? 4+ @ dup IF forward? THEN
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THEN drop false ;
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| : unresolved-words
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BEGIN @ ?dup WHILE dup unresolved?
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IF dup 2+ .name ?cr THEN REPEAT ;
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: .unresolved voc-link @
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BEGIN dup 4- unresolved-words @ ?dup 0= UNTIL ;
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\ *** Block No. 8 Hexblock 8
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\ Extending Vocabularys for Target-Compilation 05mar86we
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: Vocabulary Vocabulary 0 , here tvoc @ , tvoc ! ;
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Vocabulary Transient 0 tvoc !
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Only definitions Forth also
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: T Transient ; immediate
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: H Forth ; immediate
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definitions
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\ *** Block No. 9 Hexblock 9
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\ Transient primitives 05mar86we
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Code byte> ( 8bh 8bl -- 16b )
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SP )+ D1 move SP ) D0 move 8 # D0 lsl .b D1 D0 move
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.w D0 SP ) move Next end-code
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Code >byte ( 16b -- 8bl 8bh )
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SP )+ D0 move D0 D1 move $FF D0 andi 8 # D1 lsr
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D0 SP -) move D1 SP -) move Next end-code
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Transient definitions
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: c@ H >image imagepage lc@ ;
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: c! H >image imagepage lc! ;
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: @ dup T c@ swap 1+ T c@ 65( swap ) byte> ;
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: ! >r >byte 65( swap ) r@ T c! r> 1+ T c! ;
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: cmove ( from.mem to.target quan -)
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bounds ?DO dup H c@ I T c! H 1+ LOOP drop ;
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: place ( addr len to --)
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over >r rot over 1+ r> T cmove c! H ;
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\ *** Block No. 10 Hexblock A
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\ Transient primitives bp05mar86we
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: here there ;
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: allot Tdp +! ;
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: c, T here c! 1 allot H ;
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: , T here ! 2 allot H ;
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: ," Ascii " parse dup T c,
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under there swap cmove
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.( dup 1 and 0= IF 1+ THEN ) allot H ;
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: fill ( addr quan 8b -)
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-rot bounds ?DO dup I T c! H LOOP drop ;
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: erase 0 T fill ;
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: blank bl T fill ;
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: here! H Tdp ! ;
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\ *** Block No. 11 Hexblock B
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\ Resolving 08dec85we
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Forth definitions
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: resolve ( cfa.ghost cfa.target -)
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over dup @ <res> =
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IF space dup >name .name ." exists " ?cr 2+ ! drop exit THEN
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>r >r 2+ @ ?dup
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IF BEGIN dup T @ H 2dup = abort" resolve loop" r@ rot T !
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H ?dup 0= UNTIL
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THEN r> r> <res> over ! 2+ ! ;
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: resdoes> ( cfa.ghost cfa.target -)
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swap gdoes> dup @ <res> = IF 2+ ! exit THEN swap resolve ;
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] Does> [ here 4- 0 ] dup @ there rot ! T , H ;
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' <forw> >body !
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] Does> [ here 4- 0 ] @ T , H ;
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' <res> >body !
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\ *** Block No. 12 Hexblock C
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\ move-threads 68000-align 13jun86we
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: move-threads Tvoc @ Tvoc-link @
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BEGIN over ?dup
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WHILE 2- @ over 2- T ! @ H swap @ swap REPEAT
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error" some undef. Target-Vocs left" drop ;
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| : tlatest ( - addr) current @ 6 + ;
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\\
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wird fuer 6502 nicht gebraucht
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| : 68000-talign ( cfa -- ) 1 and IF 1 T allot H THEN ;
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\ *** Block No. 13 Hexblock D
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\ save-target 09sep86we
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Dos definitions
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Code (filewrite ( buff len handle -- n)
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SP )+ D0 move .l D2 clr .w SP )+ D2 move
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.l 0 imagepage # D1 move .w SP )+ D1 move
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.l D1 A7 -) move \ buffer adress
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.l D2 A7 -) move \ buffer length
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.w D0 A7 -) move \ handle
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$40 # A7 -) move \ call WRITE
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1 trap $0C # A7 adda
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.w D0 SP -) move Next end-code Forth definitions
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\ *** Block No. 14 Hexblock E
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\ save Target-System 09sep86we
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: save-target [ Dos ]
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bl word count dup 0= abort" missing filename"
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over + off (createfile dup >r 0< abort" no device "
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T here $1C - 4 ! 0 , 0 , H [ Dos ] \ Programm header
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0 there r@ (filewrite there - abort" write error"
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r> (closefile 0< abort" close error" ;
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\ *** Block No. 15 Hexblock F
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\ 8086-ALIGN
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: even ( addr -- addr1 ) ; immediate
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: align ( -- ) ; immediate
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: halign ( -- ) ; immediate
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\ *** Block No. 16 Hexblock 10
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\\ Create Variable ks 19 m„r 88
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Defer makeview ' 0 Is makeview
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: Create align here makeview , current @ @ ,
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name c@ dup 1 $20 uwithin not Abort" invalid name"
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here last ! 1+ allot align ?exists
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?head @ IF 1 ?head +! dup , \ Pointer to Code
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halign heapmove $20 flag! dup dp !
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THEN drop reveal 0 ,
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;Code ( -- addr ) D push 2 W D) D lea Next end-code
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: Variable Create 0 , ;
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\ *** Block No. 17 Hexblock 11
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\ compiling names into targ. 05mar86we
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: (theader
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?thead @ IF 1 ?thead +!
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.( there $FF and $FF = IF 1 T allot H THEN ) exit THEN
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>in @ name swap >in !
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dup c@ 1 $20 uwithin not abort" inval. Tname"
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.( dup c@ 3 + there + $FF and $FF =
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there 2+ $FF and $FF = or IF 1 T allot H THEN )
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blk @ T , H there tlatest dup @ T , H ! there dup tlast !
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over c@ 1+ .( even ) dup T allot cmove H ;
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: Theader tlast off
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(theader Ghost dup glast' !
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there resolve ;
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\ *** Block No. 18 Hexblock 12
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\ prebuild defining words bp27jun85we
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| : executable? ( adr - adr f ) dup ;
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| : tpfa, there , ;
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| : (prebuild ( cfa.adr -- )
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>in @ Create >in ! here 2- ! ;
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: prebuild ( adr 0.from.: - 0 )
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0 ?pairs executable? dup >r
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IF [compile] Literal compile (prebuild ELSE drop THEN
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compile Theader Ghost gdoes> ,
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r> IF compile tpfa, THEN 0 ; immediate restrict
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\ *** Block No. 19 Hexblock 13
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\ code portion of def.words bp11sep86we
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: dummy 0 ;
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: DO> ( - adr.of.jmp.dodoes> 0 )
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[compile] Does> here 4- compile @ 0 ] ;
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\ *** Block No. 20 Hexblock 14
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\ the 68000 Assembler 11sep86we
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Forth definitions
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| Create relocate ] T c, , c@ here allot ! c! H [
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Transient definitions
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: Assembler H [ Tassembler ] relocate >codes !
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Tassembler ;
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: >label ( 16b -) H >in @ name gfind rot >in !
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IF over resolve dup THEN drop Constant ;
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: Label T .( here 1 and allot ) here >label Assembler H ;
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: Code H Theader there 2+ T , Assembler H ;
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\ *** Block No. 21 Hexblock 15
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\ immed. restr. ' \ compile bp05mar86we
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: ?pairs ( n1 n2 -- ) H - abort" unstructured" ;
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: >mark ( - addr ) H there T 0 , H ;
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: >resolve ( addr - ) H there over - swap T ! H ;
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: <mark ( - addr ) H there ;
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: <resolve ( addr - ) H there - T , H ;
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: immediate H Tlast @ ?dup
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IF dup T c@ $40 or swap c! H THEN ;
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: restrict H Tlast @ ?dup
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IF dup T c@ $80 or swap c! H THEN ;
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: ' ( <name> - cfa ) H g' dup @ <res> - abort" ?" 2+ @ ;
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: | H ?thead @ ?exit ?thead on ;
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: compile H Ghost , ; immediate restrict
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\ *** Block No. 22 Hexblock 16
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\ Target tools ks05mar86we
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Onlyforth Ttools also definitions
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| : ttype ( adr n -) bounds ?DO I T c@ H dup
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bl > IF emit ELSE drop Ascii . emit THEN LOOP ;
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: .name ( nfa -) ?dup IF dup 1+ swap T c@ H $1F and ttype
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ELSE ." ??? " THEN space ?cr ;
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| : nfa? ( cfa lfa - nfa / cfa ff)
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BEGIN dup WHILE 2dup 2+ dup T c@ H $1F and + 1+ .( even ) =
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IF 2+ nip exit THEN
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T @ H REPEAT ;
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: >name ( cfa - nfa / ff)
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Tvoc BEGIN @ dup WHILE under 2- @ nfa? ?dup
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IF nip exit THEN
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swap REPEAT nip ;
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\ *** Block No. 23 Hexblock 17
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\ Ttools for decompiling ks05mar86we
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| : ?: dup 4 u.r ." :" ;
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| : @? dup T @ H 6 u.r ;
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| : c? dup T c@ H 3 .r ;
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: s ( addr - addr+ ) ?: space c? 3 spaces
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dup 1+ over T c@ H ttype dup T c@ H + 1+ ;
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: n ( addr - addr+2 ) ?: @? 2 spaces
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dup T @ H [ Ttools ] >name .name H 2+ ;
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: d ( addr n - addr+n ) 2dup swap ?: swap 0 DO c? 1+ LOOP
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2 spaces -rot ttype ;
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\ *** Block No. 24 Hexblock 18
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\ Tools for decompiling bp05mar86we
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: l ( addr -- addr+2 ) ?: 5 spaces @? 2+ ;
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: c ( addr -- addr+1 ) 1 d ;
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: b ( addr -- addr+1 ) ?: @? dup T @ H over + 5 u.r 2+ ;
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: dump ( adr n -) bounds ?DO cr I $10 d drop
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stop? IF LEAVE THEN $10 +LOOP ;
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: view T ' H [ Ttools ] >name ?dup
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IF 4- T @ H l THEN ;
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\ *** Block No. 25 Hexblock 19
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\ reinterpretation def.-words 05mar86we
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Onlyforth
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: redefinition
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tdoes> @ IF >in push [ ' >interpret >body ] Literal push
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state push context push >in: @ >in !
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name [ ' Transient 2+ ] Literal (find nip 0=
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IF cr ." Redefinition: " here .name
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>in: @ >in ! : Defining interpret THEN
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THEN 0 tdoes> ! ;
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\ *** Block No. 26 Hexblock 1A
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\ Create..does> structure bp05mar86we
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| : (;tcode
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Tlast @ dup T c@ .( dup 1 and - ) 1+ + ! H rdrop ;
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| : changecfa compile lit tdoes> @ , compile (;tcode ;
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Defining definitions
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: ;code 0 ?pairs changecfa reveal rdrop ;
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immediate restrict
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Defining ' ;code Alias does> immediate restrict
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: ; [compile] ; rdrop ; immediate restrict
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\ *** Block No. 27 Hexblock 1B
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\ redefinition conditionals bp27jun85we
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' DO Alias DO immediate restrict
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' ?DO Alias ?DO immediate restrict
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' LOOP Alias LOOP immediate restrict
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' IF Alias IF immediate restrict
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' THEN Alias THEN immediate restrict
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' ELSE Alias ELSE immediate restrict
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' BEGIN Alias BEGIN immediate restrict
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' UNTIL Alias UNTIL immediate restrict
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' WHILE Alias WHILE immediate restrict
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' REPEAT Alias REPEAT immediate restrict
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\ *** Block No. 28 Hexblock 1C
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\ clear Liter. Ascii ['] ." bp05mar86we
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Onlyforth Transient definitions
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: clear true abort" There are ghosts" ;
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: Literal ( 16b -- )
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dup $FF00 and IF T compile lit , H exit THEN
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T compile clit c, H ; immediate restrict
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: Ascii H bl word 1+ c@ state @
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IF T [compile] Literal H THEN ; immediate
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: ['] T ' [compile] Literal H ; immediate restrict
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: " T compile (" ," align H ; immediate restrict
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: ." T compile (." ," align H ; immediate restrict
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\ *** Block No. 29 Hexblock 1D
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\ Target compilation ] [ bp05mar86we
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Forth definitions
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: tcompile
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?stack >in @ name find ?dup
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IF 0> IF nip execute >interpret THEN
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drop dup >in ! name
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THEN gfind IF nip execute >interpret THEN
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nullstring? IF drop exit THEN
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number? ?dup IF 0> IF swap T [compile] Literal THEN
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[compile] Literal H drop >interpret THEN
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drop >in ! Word, >interpret ;
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Transient definitions
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: ] H state on ['] tcompile is >interpret ;
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\ *** Block No. 30 Hexblock 1E
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\ Target conditionals bp05mar86we
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: IF T compile ?branch >mark H 1 ; immediate restrict
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: THEN abs 1 T ?pairs >resolve H ; immediate restrict
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: ELSE T 1 ?pairs compile branch >mark swap >resolve
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H -1 ; immediate restrict
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: BEGIN T <mark H 2 ; immediate restrict
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: WHILE T 2 ?pairs 2 compile ?branch >mark -2 H 2swap ;
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immediate restrict
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| : (repeat T 2 ?pairs <resolve H BEGIN dup -2 =
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WHILE drop T >resolve H REPEAT ;
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: UNTIL T compile ?branch (repeat H ; immediate restrict
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: REPEAT T compile branch (repeat H ; immediate restrict
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\ *** Block No. 31 Hexblock 1F
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\ Target conditionals bp27jun85we
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: DO T compile (do >mark H 3 ; immediate restrict
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: ?DO T compile (?do >mark H 3 ; immediate restrict
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: LOOP T 3 ?pairs compile (loop compile endloop
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>resolve H ; immediate restrict
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: +LOOP T 3 ?pairs compile (+loop compile endloop
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>resolve H ; immediate restrict
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\ *** Block No. 32 Hexblock 20
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\ predefinitions bp05mar86we
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: abort" T compile (abort" ," H ; immediate
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: error" T compile (error" ," H ; immediate
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Forth definitions
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Variable torigin
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Variable tudp 0 Tudp !
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: >user T c@ H torigin @ + ;
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: >udefer T @ H torigin @ + ;
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\ *** Block No. 33 Hexblock 21
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\ Datatypes bp05mar86we
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Transient definitions
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: origin! H torigin ! ;
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: user' ( -- n ) T ' >body c@ H ;
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: uallot ( n -- ) H tudp @ swap tudp +! ;
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DO> >user ;
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: User prebuild User 2 T uallot c, ;
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DO> ;
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: Create prebuild Create ;
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DO> T @ H ;
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: Constant prebuild Constant T , ;
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: Variable Create 2 T allot ;
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\ *** Block No. 34 Hexblock 22
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\ Datatypes bp05mar86we
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dummy
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: Vocabulary
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H >in @ Vocabulary >in ! T prebuild Vocabulary 0 , 0 ,
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here H tvoc-link @ T , H tvoc-link ! ;
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: off ( tadr -- ) H false swap T ! H ;
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: on ( tadr -- ) H true swap T ! H ;
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Forth definitions
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: Fcbytes ( n1 len -- n2 ) Create over H c, + Does> c@ + ;
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\ *** Block No. 35 Hexblock 23
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\ File >file ks 23 m„r 88
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&30 Constant tfnamelen \ default length in FCB
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\ first field for file-link
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2 1 Fcbytes tf.no \ must be first field
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2 Fcbytes tf.handle
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2 Fcbytes tf.date
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2 Fcbytes tf.time
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4 Fcbytes tf.size
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tfnamelen Fcbytes tf.name Constant tb/fcb
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Transient definitions
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dummy
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: File H >in @ >r prebuild File H tfile-link @
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there tfile-link ! T , H
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there [ tb/fcb 2 - ] Literal dup T allot erase H
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tfile-link @ dup T @ H tf.no T c@ H 1+ over tf.no T c!
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H r> >in ! name count $1F and rot tf.name T place ;
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\ *** Block No. 36 Hexblock 24
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\ target defining words bp08sep86we
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\ Do> ;
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\ : Defer prebuild Defer 2 T allot ;
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\ : Is T ' H >body state @ IF T compile (is , H
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\ ELSE T ! H THEN ; immediate
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Do> ;
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: Defer prebuild Defer 2 T uallot , ;
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: Is T ' H >body state @ IF T compile (is T @ , H
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ELSE >udefer T ! H THEN ; immediate
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| : dodoes> T compile (;code H Glast' @
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there resdoes> there tdoes> ! ;
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: ;code 0 T ?pairs dodoes> Assembler H [compile] [
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redefinition ; immediate restrict
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: does> T dodoes> $E9 C, \ JMP Code
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H tdodo @ there 2+ - T , H ; immediate restrict
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\ *** Block No. 37 Hexblock 25
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\ : Alias ; bp25mar86we
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: Create: T Create H current @ context ! T ] H 0 ;
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dummy
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: : H tdoes> off >in @ >in: ! T prebuild :
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H current @ context ! T ] H 0 ;
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: Alias ( n -- ) H Tlast off (theader Ghost over resolve
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tlast @ T c@ H $20 or tlast @ T c! , H ;
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: ; T 0 ?pairs compile unnest
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[compile] [ H redefinition ; immediate restrict
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\ *** Block No. 38 Hexblock 26
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\ predefinitions bp11sep86we
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: compile T compile compile H ; immediate restrict
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: Host H Onlyforth Ttools also ;
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: Compiler T Host H Transient also definitions ;
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: [compile] H Word, ; immediate restrict
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: Onlypatch H there 3 - 0 tdoes> ! 0 ;
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Onlyforth
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: Target Onlyforth Transient also definitions ;
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Transient definitions
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Ghost c, drop
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\ *** Block No. 39 Hexblock 27
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