mirror of https://git.sr.ht/~rabbits/uxn
97 lines
2.0 KiB
Plaintext
97 lines
2.0 KiB
Plaintext
( draw routines )
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:dev/r fff8 ( std read port )
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:dev/w fff9 ( std write port )
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;x_ 2 ;y_ 2 ;x 2 ;y 2 ;w 2 ;h 2 ;color 1
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;x0 2 ;y0 2 ;x1 2 ;y1 2 ;dx 2 ;dy 2 ;err1 2 ;err2 2 ( line )
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|0100 @RESET
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( set dev/write to screen )
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#01 =dev/w ( set dev/write to sprite )
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#01 ,color STR
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( fill rect x y w h )
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#0020 #0020 #0060 #0040 ,fillrect JSR
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#02 ,color STR
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( fill rect x y w h )
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#0030 #0030 #0040 #0060 ,fillrect JSR
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#03 ,color STR
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( fill rect x y w h )
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#0040 #0040 #0060 #0040 ,fillrect JSR
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#01 ,color STR
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( fill rect x y w h )
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#00a0 #0010 #0020 #0020 ,fillrect JSR
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#02 ,color STR
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( fill rect x y w h )
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#00b0 #0040 #0020 #0020 ,linerect JSR
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#03 ,color STR
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( fill rect x y w h )
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#0058 #0028 #0050 #0050 ,linerect JSR
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#01 ,color STR
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( fill rect x y w h )
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#0028 #0038 #0050 #0030 ,linerect JSR
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,redraw JSR
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BRK
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@fillrect
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,h STR2 ,w STR2 ,y STR2 ,x STR2
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,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2
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@fillrectrow
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,x LDR2 ,x_ STR2
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@fillrectcol
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( draw ) ,x_ LDR2 ,y_ LDR2 ,putpixel JSR
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,x_ LDR2 #0001 ADD2 ,x_ STR2
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,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 LTH2 ,fillrectcol ROT JMP? POP2
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,y_ LDR2 #0001 ADD2 ,y_ STR2
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,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,fillrectrow ROT JMP? POP2
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RTS
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@linerect
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,h STR2 ,w STR2 ,y STR2 ,x STR2
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,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2
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@linerectcol
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( draw ) ,x LDR2 ,y_ LDR2 ,putpixel JSR
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( draw ) ,x LDR2 ,w LDR2 ADD2 ,y_ LDR2 ,putpixel JSR
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,y_ LDR2 #0001 ADD2 ,y_ STR2
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,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,linerectcol ROT JMP? POP2
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@linerectrow
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( draw ) ,x_ LDR2 ,y LDR2 ,putpixel JSR
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( draw ) ,x_ LDR2 ,y LDR2 ,h LDR2 ADD2 ,putpixel JSR
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,x_ LDR2 #0001 ADD2 ,x_ STR2
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,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 #0001 ADD2 LTH2 ,linerectrow ROT JMP? POP2
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RTS
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@diff16
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OVR2 OVR2 GTH2 ,diff16sub ROT JMP? POP2
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SWP2 @diff16sub SUB2
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RTS
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@redraw
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#0000 IOW2
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#0000 IOW2
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#00 IOW
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#01 IOW
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RTS
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@putpixel
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IOW2 ( y short )
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IOW2 ( x short )
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,color LDR IOW ( color byte )
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#00 IOW ( redraw byte )
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RTS
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|c000 @FRAME BRK
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|d000 @ERROR BRK
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|FFF0 [ f2ac 35bb 2b53 ] ( palette )
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|FFFA .RESET .FRAME .ERROR
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