uxn/examples/shapes.usm

79 lines
1.6 KiB
Plaintext
Raw Normal View History

2021-02-21 01:14:36 +00:00
( draw routines )
:dev/r fff8 ( std read port )
:dev/w fff9 ( std write port )
;x_ 2 ;y_ 2 ;x 2 ;y 2 ;w 2 ;h 2 ;color 1
|0100 @RESET
#01 =dev/w ( set dev/write to screen )
#01 ,color STR
( fill rect x y w h )
#0020 #0020 #0060 #0040 ,fillrect JSR
#02 ,color STR
( fill rect x y w h )
#0030 #0030 #0040 #0060 ,fillrect JSR
#03 ,color STR
( fill rect x y w h )
#0040 #0040 #0060 #0040 ,fillrect JSR
#01 ,color STR
( fill rect x y w h )
#00a0 #0010 #0020 #0020 ,fillrect JSR
#02 ,color STR
( fill rect x y w h )
#00b0 #0040 #0020 #0020 ,linerect JSR
#03 ,color STR
( fill rect x y w h )
#0058 #0028 #0050 #0050 ,linerect JSR
#01 ,color STR
( fill rect x y w h )
#0028 #0038 #0050 #0030 ,linerect JSR
BRK
@fillrect
=h =w =y =x
~x =x_ ~y =y_
@fillrectrow
~x =x_
@fillrectcol
( draw ) ~x_ ~y_ ,putpixel JSR
~x_ #0001 ADD2 =x_
~x_ ~w ~x ADD2 LTH2 ,fillrectcol ROT JMP? POP2
~y_ #0001 ADD2 =y_
~y_ ~h ~y ADD2 LTH2 ,fillrectrow ROT JMP? POP2
RTS
@linerect
=h =w =y =x
~x =x_ ~y =y_
@linerectcol
( draw ) ~x ~y_ ,putpixel JSR
( draw ) ~x ~w ADD2 ~y_ ,putpixel JSR
~y_ #0001 ADD2 =y_
~y_ ~h ~y ADD2 LTH2 ,linerectcol ROT JMP? POP2
@linerectrow
( draw ) ~x_ ~y ,putpixel JSR
( draw ) ~x_ ~y ~h ADD2 ,putpixel JSR
~x_ #0001 ADD2 =x_
~x_ ~w ~x ADD2 #0001 ADD2 LTH2 ,linerectrow ROT JMP? POP2
RTS
@putpixel
IOW2 ( y short )
IOW2 ( x short )
,color LDR IOW ( color byte )
RTS
|c000 @FRAME BRK
|d000 @ERROR BRK
|FFF0 [ f2ac 35bb 2b53 ] ( palette )
|FFFA .RESET .FRAME .ERROR ( vectors )