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