297 lines
8.9 KiB
Tal
297 lines
8.9 KiB
Tal
( a blank file )
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( TODO fix ugly stack effects )
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%+ { ADD } %- { SUB } %* { MUL } %/ { DIV }
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%< { LTH } %> { GTH } %= { EQU } %! { NEQ }
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%++ { ADD2 } %-- { SUB2 } %** { MUL2 } %// { DIV2 }
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%<< { LTH2 } %>> { GTH2 } %== { EQU2 } %!! { NEQ2 }
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%2* { #10 SFT } %2/ { #01 SFT } %2** { #10 SFT2 } %2// { #01 SFT2 }
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%4* { #20 SFT } %4/ { #02 SFT } %4** { #20 SFT2 } %4// { #02 SFT2 }
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%8* { #30 SFT } %8/ { #03 SFT } %8** { #30 SFT2 } %8// { #03 SFT2 }
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%10* { #40 SFT } %10/ { #04 SFT } %10** { #40 SFT2 } %10// { #04 SFT2 }
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%20* { #50 SFT } %20/ { #05 SFT } %20** { #50 SFT2 } %20// { #05 SFT2 }
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%2MOD { #01 AND } %2MOD2 { #0001 AND2 }
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%4MOD { #03 AND } %4MOD2 { #0003 AND2 }
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%8MOD { #07 AND } %8MOD2 { #0007 AND2 }
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%10MOD { #0f AND } %10MOD2 { #000f AND2 }
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%DEBUG { ;print-hex/byte JSR2 #0a18 DEO }
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%DEBUG2 { ;print-hex JSR2 #0a18 DEO }
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%RTN { JMP2r }
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%MOD { DIVk MUL SUB }
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%MOD2 { DIV2k MUL2 SUB2 }
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( devices )
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|00 @System &vector $2 &wst $1 &rst $1 &eaddr $2 &ecode $1 &pad $1 &r $2 &g $2 &b $2 &debug $1 &halt $1
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|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
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|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
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|30 @Audio0 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
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|40 @Audio1 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
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|50 @Audio2 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
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|60 @Audio3 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
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|80 @Controller &vector $2 &button $1 &key $1 &func $1
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|90 @Mouse &vector $2 &x $2 &y $2 &state $1 &pad $3 &scrollx $2 &scrolly $2
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|a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
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|b0 @DateTime &year $2 &month $1 &day $1 &hour $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1
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( variables )
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|0000
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@kalama
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&module $2 ( pointer to start of module file )
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&loopflags $1 ( if different channels are set to loop )
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&instruments $2 ( address that instruments start at )
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&tick $1
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&line $1
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&speed $1
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&songloop $1 ( if song loops or not )
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&songpos $2 ( position in song table )
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@tracker
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&selected-pattern $1
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( program )
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|0100 ( -> )
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( theme )
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#0fe5 .System/r DEO2
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#0fc5 .System/g DEO2
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#0f25 .System/b DEO2
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;module ;k-init-module/run JSR2
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;on-input .Controller/vector DEO2
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;redraw JSR2
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BRK
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@redraw ( -> )
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#0000 .Screen/x DEO2
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#0008 .Screen/y DEO2
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;draw-song JSR2
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#0008 .Screen/y DEO2
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#0080 .Screen/x DEO2
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;get-selected-song-line-address JSR2 ;draw-patterns JSR2
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BRK
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@on-input ( -> )
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.Controller/button DEI
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DUP #10 AND ,&up JCN
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#20 AND ,&down JCN
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BRK
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&up
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.tracker/selected-pattern LDZ #01 SUB .tracker/selected-pattern STZ
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,&end JMP
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&down
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.tracker/selected-pattern LDZ #01 ADD .tracker/selected-pattern STZ
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,&end JMP
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&end
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;redraw JSR2
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BRK
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@draw-patterns ( addr* )
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DUP2
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LDA ;draw-pattern JSR2
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#0008 .Screen/y DEO2
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.Screen/x DEI2 #0040 ADD2 .Screen/x DEO2
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DUP2 #0001 ADD2 LDA ;draw-pattern JSR2
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#0008 .Screen/y DEO2
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.Screen/x DEI2 #0040 ADD2 .Screen/x DEO2
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DUP2 #0002 ADD2 LDA ;draw-pattern JSR2
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#0008 .Screen/y DEO2
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.Screen/x DEI2 #0040 ADD2 .Screen/x DEO2
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#0003 ADD2 LDA ;draw-pattern JSR2
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RTN
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@get-selected-song-line-address ( -- addr* )
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.tracker/selected-pattern LDZ #00 SWP #0004 MUL2
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.kalama/module LDZ2 #0005 ADD2 ADD2
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RTN
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@draw-song
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.Screen/x DEI2 ,&pos STR2
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#0005 .kalama/module LDZ2 ADD2 DUP2 ( first song line )
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#0003 .kalama/module LDZ2 ADD2 LDA2 ( song length ) ADD2 STH2 ( stash end address )
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&loop ( start-addr* )
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DUP2
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DUP2 ;get-selected-song-line-address JSR2 EQU2 ( if selected address is this one, use color 08. If not, use 01 ) ,&if JCN
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,&else JMP
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&if
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#08 ,&end JMP
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&else
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#01
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&end
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;draw-song-line JSR2
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,&pos LDR2 .Screen/x DEO2
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.Screen/y DEI2 #0008 ADD2 .Screen/y DEO2
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#0004 ADD2 DUP2
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STHrk2 NEQ2 ,&loop JCN
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POP2r POP2
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RTN
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&pos $2
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&start-addr $2
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@draw-song-line ( addr* color )
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,&color STR
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DUP2 #0004 ADD2 STH2 ( stash end address )
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&loop ( start-addr* )
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DUP2 LDA ,&color LDR ;draw-hex JSR2
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#00 .Screen/sprite DEO
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INC2 DUP2
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STHrk2 NEQ2 ,&loop JCN
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POP2r POP2
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RTN
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&color $1
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@draw-pattern ( p )
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.Screen/x DEI2 ,&x STR2
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;k-get-pattern JSR2
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DUP2 #0030 ADD2 STH2 ( stash address of end of pattern )
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&loop ( addr )
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DUP2 ;draw-pattern-line JSR2 ( addr )
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#00 .Screen/auto DEO ( clear auto byte )
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.Screen/y DEI2 #0008 ADD2 .Screen/y DEO2
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,&x LDR2 .Screen/x DEO2
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#0003 ADD2 ( addr+3 ) DUP2 STH2rk ( addr+3 addr+3 end ) NEQ2 ,&loop JCN
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POP2 POP2r
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RTN
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&x $2
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@draw-pattern-line ( addr )
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#01 .Screen/auto DEO
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DUP2 LDA #01 ;draw-note JSR2 ( draw note name )
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#00 .Screen/sprite DEO ( space )
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DUP2 #0001 ADD2 ( effect letter )
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LDA #00 SWP ;&effect-letters ADD2 LDA #20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( draw effect letter )
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#01 .Screen/sprite DEO
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#0002 ADD2 LDA #01 ;draw-hex JSR2 ( draw effect argument )
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RTN
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&effect-letters '- 'V 'I 'A 'D 'S 'R 'T
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@draw-note ( n color -- )
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#01 .Screen/auto DEO
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STH ( stash color )
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DUP #ff EQU ;¬e-off JCN2
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DUP #00 EQU ;&blank JCN2
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DUP #0c MOD ( note minus octave )
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#00 SWP #0002 MUL2
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;¬es ADD2 LDA2 SWP
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#20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( first note character )
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STHrk .Screen/sprite DEO
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#20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( second note character )
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STHrk .Screen/sprite DEO
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#0c DIV #10 ADD #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( octave number )
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STHr .Screen/sprite DEO
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RTN
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¬es "C- "C# "D- "D# "E- "F- "F# "G- "G# "A- "A# "B-
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¬e-off
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#5b #20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( [ )
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STHrk .Screen/sprite DEO
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#00 .Screen/sprite DEO
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#5d #20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( ] )
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STHr .Screen/sprite DEO
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POP
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RTN
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&blank
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#2d #20 SUB #00 SWP #0008 MUL2 ;font ADD2 .Screen/addr DEO2 ( - )
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STHr
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DUP .Screen/sprite DEO ( three times )
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DUP .Screen/sprite DEO
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.Screen/sprite DEO
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POP
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RTN
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@draw-hex ( n color -- )
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#01 .Screen/auto DEO
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STH ( stash color )
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DUP
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#f0 AND #04 SFT ,&get-char JSR #0008 MUL2 ;font ADD2 .Screen/addr DEO2
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STHrk .Screen/sprite DEO
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#0f AND ,&get-char JSR #0008 MUL2 ;font ADD2 .Screen/addr DEO2
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STHr .Screen/sprite DEO
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RTN
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&get-char ( d -- c* )
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DUP #09 GTH ,&hex JCN
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#10 ADD #00 SWP
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RTN
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&hex
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#37 ADD #00 SWP
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RTN
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@print-hex ( value* -- )
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SWP ,&byte JSR
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&byte ( byte -- )
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STHk #04 SFT ,&parse JSR #18 DEO
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STHr #0f AND ,&parse JSR #18 DEO
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RTN
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&parse ( byte -- char ) DUP #09 GTH ,&above JCN #30 + RTN
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&above #57 + RTN
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RTN
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~engine.tal
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@font ( bbcmicro )
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0000 0000 0000 0000 1818 1818 1800 1800
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6c6c 6c00 0000 0000 3636 7f36 7f36 3600
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0c3f 683e 0b7e 1800 6066 0c18 3066 0600
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386c 6c38 6d66 3b00 0c18 3000 0000 0000
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0c18 3030 3018 0c00 3018 0c0c 0c18 3000
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0018 7e3c 7e18 0000 0018 187e 1818 0000
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0000 0000 0018 1830 0000 007e 0000 0000
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0000 0000 0018 1800 0006 0c18 3060 0000
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3c66 6e7e 7666 3c00 1838 1818 1818 7e00
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3c66 060c 1830 7e00 3c66 061c 0666 3c00
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0c1c 3c6c 7e0c 0c00 7e60 7c06 0666 3c00
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1c30 607c 6666 3c00 7e06 0c18 3030 3000
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3c66 663c 6666 3c00 3c66 663e 060c 3800
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0000 1818 0018 1800 0000 1818 0018 1830
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0c18 3060 3018 0c00 0000 7e00 7e00 0000
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3018 0c06 0c18 3000 3c66 0c18 1800 1800
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3c66 6e6a 6e60 3c00 3c66 667e 6666 6600
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7c66 667c 6666 7c00 3c66 6060 6066 3c00
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786c 6666 666c 7800 7e60 607c 6060 7e00
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7e60 607c 6060 6000 3c66 606e 6666 3c00
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6666 667e 6666 6600 7e18 1818 1818 7e00
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3e0c 0c0c 0c6c 3800 666c 7870 786c 6600
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6060 6060 6060 7e00 6377 7f6b 6b63 6300
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6666 767e 6e66 6600 3c66 6666 6666 3c00
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7c66 667c 6060 6000 3c66 6666 6a6c 3600
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7c66 667c 6c66 6600 3c66 603c 0666 3c00
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7e18 1818 1818 1800 6666 6666 6666 3c00
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6666 6666 663c 1800 6363 6b6b 7f77 6300
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6666 3c18 3c66 6600 6666 663c 1818 1800
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7e06 0c18 3060 7e00 7c60 6060 6060 7c00
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0060 3018 0c06 0000 3e06 0606 0606 3e00
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183c 6642 0000 0000 0000 0000 0000 00ff
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1c36 307c 3030 7e00 0000 3c06 3e66 3e00
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6060 7c66 6666 7c00 0000 3c66 6066 3c00
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0606 3e66 6666 3e00 0000 3c66 7e60 3c00
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1c30 307c 3030 3000 0000 3e66 663e 063c
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6060 7c66 6666 6600 1800 3818 1818 3c00
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1800 3818 1818 1870 6060 666c 786c 6600
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3818 1818 1818 3c00 0000 367f 6b6b 6300
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0000 7c66 6666 6600 0000 3c66 6666 3c00
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0000 7c66 667c 6060 0000 3e66 663e 0607
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0000 6c76 6060 6000 0000 3e60 3c06 7c00
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3030 7c30 3030 1c00 0000 6666 6666 3e00
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0000 6666 663c 1800 0000 636b 6b7f 3600
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0000 663c 183c 6600 0000 6666 663e 063c
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0000 7e0c 1830 7e00 0c18 1870 1818 0c00
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1818 1800 1818 1800 3018 180e 1818 3000
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316b 4600 0000 0000 ffff ffff ffff ffff
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@module
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~testmodule.tal
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