mirror of https://git.sr.ht/~rabbits/uxn
62 lines
1.1 KiB
Plaintext
62 lines
1.1 KiB
Plaintext
( controller )
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:dev/r fff8 ( const read port )
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:dev/w fff9 ( const write port )
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;x 2 ;y 2 ;sprite 2
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|0100 @RESET
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#03 =dev/r ( set dev/read to controller )
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#02 =dev/w ( set dev/write to sprite )
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#0080 =x #0040 =y ( origin )
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#02 ,up_icn ~x ~y ,draw-sprite JSR
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BRK
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|c000 @FRAME
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#03 =dev/r ( set dev/read to controller )
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,default_icn =sprite
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#00 IOR #10 NEQ ,next1 ROT JMP? POP2
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,up_icn =sprite
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~y #0001 SUB2 =y
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@next1
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#00 IOR #20 NEQ ,next2 ROT JMP? POP2
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,down_icn =sprite
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~y #0001 ADD2 =y
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@next2
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#00 IOR #40 NEQ ,next3 ROT JMP? POP2
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,left_icn =sprite
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~x #0001 SUB2 =x
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@next3
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#00 IOR #80 NEQ ,end ROT JMP? POP2
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,right_icn =sprite
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~x #0001 ADD2 =x
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@end
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( redraw )
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#03 ~sprite ~x ~y ,draw-sprite JSR
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BRK
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@default_icn [ 3c7e ffdb ffe7 7e3c ]
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@up_icn [ 2466 e7db ffff 7e3c ]
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@down_icn [ 3c7e ffff dbe7 6624 ]
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@left_icn [ 3c7e ef1f 1fef 7e3c ]
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@right_icn [ 3c7e f7f8 f8f7 7e3c ]
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@draw-sprite
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IOW2 ( y byte )
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IOW2 ( x byte )
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IOW2 ( sprite address )
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IOW ( layer-color )
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RTS
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|d000 @ERROR BRK
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|FFF0 [ 02ac 05bb 0b53 ] ( palette )
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|FFFA .RESET .FRAME .ERROR
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