mirror of
https://git.sr.ht/~rabbits/uxn
synced 2024-11-08 07:15:04 +00:00
55 lines
1,002 B
Text
55 lines
1,002 B
Text
|
( comment )
|
||
|
|
|
||
|
|
:dev/r fff8 ( const read port )
|
||
|
|
:dev/w fff9 ( const write port )
|
||
|
|
|
||
|
|
;x 2 ;y 2
|
||
|
|
|
||
|
|
|0100 @RESET
|
||
|
|
|
||
|
|
#05 ,dev/r STR ( set dev/read to ctrl )
|
||
|
|
#04 ,dev/w STR ( set dev/write to ppu-sprite )
|
||
|
|
|
||
|
|
#0080 ,x STR2
|
||
|
|
#0040 ,y STR2
|
||
|
|
#01 ,cursor_icn ,x LDR2 ,y LDR2 ,putsprite JSR
|
||
|
|
|
||
|
|
BRK
|
||
|
|
|
||
|
|
|0200 @SPRITESHEET
|
||
|
|
|
||
|
|
@cursor_icn .80c0 .e0f0 .f8e0 .1000 .0000 .0000 .0000 .0000
|
||
|
|
@star_icn .1054 .28c6 .2854 .1000 .0000 .0000 .0000 .0000
|
||
|
|
|
||
|
|
BRK
|
||
|
|
|
||
|
|
|c000 @FRAME
|
||
|
|
|
||
|
|
#00 IOR #10 NEQ ,next0 ROT JMP? POP2
|
||
|
|
,y LDR2 #0001 SUB2 ,y STR2
|
||
|
|
@next0
|
||
|
|
#00 IOR #20 NEQ ,next1 ROT JMP? POP2
|
||
|
|
,y LDR2 #0001 ADD2 ,y STR2
|
||
|
|
@next1
|
||
|
|
#00 IOR #40 NEQ ,next2 ROT JMP? POP2
|
||
|
|
,x LDR2 #0001 SUB2 ,x STR2
|
||
|
|
@next2
|
||
|
|
#00 IOR #80 NEQ ,next3 ROT JMP? POP2
|
||
|
|
,x LDR2 #0001 ADD2 ,x STR2
|
||
|
|
@next3
|
||
|
|
( redraw )
|
||
|
|
#01 ,cursor_icn ,x LDR2 ,y LDR2 ,putsprite JSR
|
||
|
|
|
||
|
|
BRK
|
||
|
|
|
||
|
|
@putsprite
|
||
|
|
IOW2 ( y short )
|
||
|
|
IOW2 ( x short )
|
||
|
|
IOW2 ( sprite address )
|
||
|
|
IOW ( redraw byte )
|
||
|
|
RTS
|
||
|
|
|
||
|
|
|d000 @ERROR BRK
|
||
|
|
|
||
|
|
|FFFA .RESET .FRAME .ERROR
|