mirror of
https://git.sr.ht/~rabbits/uxn
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283 lines
6.2 KiB
Tal
283 lines
6.2 KiB
Tal
( Game Of Life
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Any live cell with fewer than two live neighbours dies, as if by underpopulation.
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Any live cell with two or three live neighbours lives on to the next generation.
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Any live cell with more than three live neighbours dies, as if by overpopulation.
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Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction. )
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%+ { ADD } %- { SUB }
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%< { LTH } %> { GTH } %= { EQU } %! { NEQ }
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%++ { ADD2 } %-- { SUB2 }
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%<< { LTH2 } %>> { GTH2 } %== { EQU2 } %!! { NEQ2 }
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%2/ { #01 SFT }
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%8/ { #03 SFT }
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%2// { #01 SFT2 } %8// { #03 SFT2 }
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%2** { #10 SFT2 } %8** { #30 SFT2 }
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%40** { #60 SFT2 }
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%8MOD { #07 AND } %2MOD { #01 AND }
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%TOS { #00 SWP }
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%RTN { JMP2r }
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%SFL { #40 SFT SFT }
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%WIDTH { #40 } %HEIGHT { #40 }
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%WIDTH-MOD { #3f AND } %HEIGHT-MOD { #3f AND }
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%BANK1 { #8000 } %BANK2 { #a000 }
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%GET-SIZE { WIDTH TOS 8// 40** }
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%GET-ITERATORS { SWP2k POP NIP }
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%GET-ITER { OVR2 NIP OVR SWP }
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( devices )
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|00 @System [ &vector $2 &wst $1 &rst $1 &pad $4 &r $2 &g $2 &b $2 ]
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|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &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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|80 @Controller [ &vector $2 &button $1 &key $1 ]
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|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &wheel $1 ]
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( variables )
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|0000
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@world [ &frame $1 &count $2 ]
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@anchor [ &x $2 &y $2 ]
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@pointer [ &x $2 &y $2 ]
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( program )
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|0100 ( -> )
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( theme )
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#02cf .System/r DEO2
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#02ff .System/g DEO2
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#024f .System/b DEO2
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( vectors )
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;on-frame .Screen/vector DEO2
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;on-mouse .Mouse/vector DEO2
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;on-control .Controller/vector DEO2
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( glider )
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#07 #03 ;set-cell JSR2
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#07 #04 ;set-cell JSR2
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#05 #04 ;set-cell JSR2
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#07 #05 ;set-cell JSR2
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#06 #05 ;set-cell JSR2
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.Screen/width DEI2 2// WIDTH TOS -- .anchor/x STZ2
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.Screen/height DEI2 2// HEIGHT TOS -- .anchor/y STZ2
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BRK
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@on-frame-paused ( -> )
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BRK
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@on-frame ( -> )
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.Mouse/state DEI #00 = #01 JCN [ BRK ]
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( incr frame ) .world/frame LDZ INC [ DUP ] .world/frame STZ
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( reset count ) #0000 .world/count STZ2
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#03 AND #00 = #01 JCN [ BRK ]
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( clear buffer )
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BANK2 STH2k GET-SIZE ++ STH2r
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&clear-loop
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DUP2 #0000 SWP2 STA2
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INC2 INC2 GTH2k ,&clear-loop JCN
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POP2 POP2
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( run grid )
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#00 HEIGHT
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&ver
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#00 WIDTH
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&hor
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GET-ITERATORS
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( x y ) DUP2
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( neighbours ) DUP2 ;get-neighbours JSR2
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( state ) ROT ROT ;get-cell JSR2
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,run-cell JSR
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SWP INC SWP
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LTHk ,&hor JCN
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POP2
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SWP INC SWP
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LTHk ,&ver JCN
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POP2
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( move buffer )
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BANK2 DUP2 GET-SIZE ++ SWP2
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©-loop
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DUP2 LDA2k
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SWP2 #2000 -- STA2
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INC2 INC2 GTH2k ,©-loop JCN
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POP2 POP2
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;draw-grid JSR2
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BRK
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@run-cell ( x y neighbours state -- )
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#00 = ,&dead JCN
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&alive
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DUP #02 < ,&dies JCN
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DUP #03 > ,&dies JCN
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&lives POP ,save-cell JSR RTN
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&dies POP POP2 RTN
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&dead
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DUP #03 = ,&birth JCN POP POP2 RTN
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&birth POP ,save-cell JSR RTN
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RTN
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@save-cell ( x y -- )
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( get index )
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HEIGHT-MOD SWP WIDTH-MOD SWP
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TOS 8** ROT 8/ TOS ++ [ BANK2 ++ ]
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( incr count )
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.world/count LDZ2 INC2 .world/count STZ2
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( save in buffer )
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STH2
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DUP2 POP 8MOD #01 SWP SFL
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LDAkr STHr SWP ORA
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STH2r STA
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RTN
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@on-mouse ( -> )
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( clear last cursor )
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;cursor .Screen/addr DEO2
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.pointer/x LDZ2 .Screen/x DEO2
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.pointer/y LDZ2 .Screen/y DEO2
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#40 .Screen/sprite DEO
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( record pointer positions )
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.Mouse/x DEI2 DUP2 .pointer/x STZ2 .Screen/x DEO2
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.Mouse/y DEI2 DUP2 .pointer/y STZ2 .Screen/y DEO2
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( colorize on state )
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#42 [ .Mouse/state DEI #00 ! ] + .Screen/sprite DEO
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.Mouse/state DEI #00 ! #01 JCN [ BRK ]
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.Mouse/x DEI2 DUP2 .anchor/x LDZ2 >> ROT ROT .anchor/x LDZ2 WIDTH DUP ADD TOS ++ INC2 << #0101 ==
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.Mouse/y DEI2 DUP2 .anchor/y LDZ2 >> ROT ROT .anchor/y LDZ2 HEIGHT DUP ADD TOS ++ << #0101 ==
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#0101 == #01 JCN [ BRK ]
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.Mouse/x DEI2 .anchor/x LDZ2 SUB2 2/ NIP
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.Mouse/y DEI2 .anchor/y LDZ2 SUB2 2/ NIP
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;set-cell JSR2
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;draw-grid JSR2
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BRK
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@on-control ( -> )
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.Controller/key DEI #00 ! #01 JCN [ BRK ]
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.Controller/key DEI #20 ! ,&no-toggle JCN
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;on-frame
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.Screen/vector DEI2 ;on-frame-paused == ,&swap JCN
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POP2 ;on-frame-paused
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&swap
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.Screen/vector DEO2
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&no-toggle
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BRK
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@draw-grid ( -- )
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( draw cell count )
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.anchor/x LDZ2 .Screen/x DEO2
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.anchor/y LDZ2 HEIGHT DUP ADD TOS ++ .Screen/y DEO2
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.world/count LDZ2 #03 ;draw-short JSR2
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HEIGHT #00
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&ver
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DUP TOS 2** .anchor/y LDZ2 ++ .Screen/y DEO2
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WIDTH #00
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&hor
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DUP TOS 2** .anchor/x LDZ2 ++ .Screen/x DEO2
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GET-ITER ,get-cell JSR INC .Screen/pixel DEO
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INC GTHk ,&hor JCN
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POP2
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INC GTHk ,&ver JCN
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POP2
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RTN
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@get-index ( x y -- index* )
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HEIGHT-MOD SWP WIDTH-MOD SWP
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TOS 8** ROT 8/ TOS ++ [ BANK1 ++ ]
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RTN
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@set-cell ( x y -- )
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DUP2 ,get-index JSR STH2
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POP 8MOD #01 SWP SFL
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LDAkr STHr SWP ORA
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STH2r STA
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RTN
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@get-cell ( x y -- cell )
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DUP2 ,get-index JSR LDA
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NIP SWP
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8MOD
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SFT 2MOD
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RTN
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@get-neighbours ( x y -- neighbours )
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( -1,-1 ) DUP2 #01 - [ SWP #01 - SWP ] ,get-cell JSR STH
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( 0,-1 ) DUP2 #01 - ,get-cell JSR STH ADDr
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( +1,-1 ) DUP2 #01 - [ SWP INC SWP ] ,get-cell JSR STH ADDr
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( -1, 0 ) DUP2 [ SWP #01 - SWP ] ,get-cell JSR STH ADDr
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( +1, 0 ) DUP2 [ SWP INC SWP ] ,get-cell JSR STH ADDr
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( -1,+1 ) DUP2 INC [ SWP #01 - SWP ] ,get-cell JSR STH ADDr
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( 0,+1 ) DUP2 INC ,get-cell JSR STH ADDr
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( +1,+1 ) INC [ SWP INC SWP ] ,get-cell JSR STH ADDr
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STHr
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RTN
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@draw-short ( short* color -- )
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STH SWP
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DUP #04 SFT TOS 8** ;font-hex ++ .Screen/addr DEO2
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( draw ) STHkr .Screen/sprite DEO
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#0f AND TOS 8** ;font-hex ++ .Screen/addr DEO2
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.Screen/x DEI2 #0008 ++ .Screen/x DEO2
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( draw ) STHkr .Screen/sprite DEO
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DUP #04 SFT TOS 8** ;font-hex ++ .Screen/addr DEO2
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.Screen/x DEI2 #0008 ++ .Screen/x DEO2
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( draw ) STHkr .Screen/sprite DEO
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#0f AND TOS 8** ;font-hex ++ .Screen/addr DEO2
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.Screen/x DEI2 #0008 ++ .Screen/x DEO2
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( draw ) STHr .Screen/sprite DEO
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RTN
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@cursor
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80c0 e0f0 f8e0 1000
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@font-hex
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007c 8282 8282 827c 0030 1010 1010 1010
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007c 8202 7c80 80fe 007c 8202 1c02 827c
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000c 1424 4484 fe04 00fe 8080 7c02 827c
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007c 8280 fc82 827c 007c 8202 1e02 0202
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007c 8282 7c82 827c 007c 8282 7e02 827c
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007c 8202 7e82 827e 00fc 8282 fc82 82fc
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007c 8280 8080 827c 00fc 8282 8282 82fc
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007c 8280 f080 827c 007c 8280 f080 8080
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