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Rewrote rect routines

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This commit is contained in:
neauoire 2021-02-21 13:23:36 -08:00
parent e1a5cc6195
commit b01987b175
2 changed files with 57 additions and 61 deletions
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2
build.sh
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@ -20,5 +20,5 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werr
# cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
# run
./bin/assembler examples/shapes.usm bin/boot.rom
./bin/assembler examples/paint.usm bin/boot.rom
./bin/emulator bin/boot.rom

114
examples/shapes.usm
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@ -3,77 +3,73 @@
: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
;color 1 ;x1 2 ;x2 2 ;y1 2 ;y2 2
|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
#01 =color
#0020 #0020 #0060 #0060 ,fill-rect JSR
#02 =color
#0030 #0030 #0070 #0070 ,fill-rect JSR
#03 =color
#0040 #0040 #0080 #0080 ,fill-rect 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
#01 =color
#0090 #0020 #00d0 #0060 ,line-rect JSR
#02 =color
#00a0 #0030 #00e0 #0070 ,line-rect JSR
#03 =color
#00b0 #0040 #00f0 #0080 ,line-rect 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
@line-ver ( x1 y1 y2 )
=y2 =y1 =x1
@line-ver-loop
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
( incr ) ~y1 #0001 ADD2 DUP2 =y1
~y2 NEQ2 ,line-ver-loop 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
@line-hor ( x1 y1 x2 )
=x2 =y1 =x1
@line-hor-loop
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
( incr ) ~x1 #0001 ADD2 DUP2 =x1
~x2 NEQ2 ,line-hor-loop ROT JMP? POP2
RTS
@putpixel
IOW2 ( y short )
IOW2 ( x short )
,color LDR IOW ( color byte )
RTS
@line-rect ( x1 y1 x2 y2 )
=y2 =x2 ( stash x1 y1 ) DUP2 WSR2 =y1 DUP2 WSR2 =x1
@line-rect-hor
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
( draw ) ~x1 ~y2 IOW2 IOW2 ~color IOW
( incr ) ~x1 #0001 ADD2 DUP2 =x1
~x2 #0001 ADD2 LTH2 ,line-rect-hor ROT JMP? POP2
( restore x1 y1 ) RSW2 =x1 RSW2 =y1
@line-rect-ver
( incr ) ~y1 #0001 ADD2 DUP2 =y1
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
( draw ) ~x2 ~y1 IOW2 IOW2 ~color IOW
~y2 #0001 SUB2 LTH2 ,line-rect-ver ROT JMP? POP2
RTS
@fill-rect ( x1 y1 x2 y2 )
=y2 =x2 ( stash x1 y1 ) =y1 DUP2 WSR2 =x1
@fill-rect-ver
RSW2 DUP2 =x1 WSR2
@fill-rect-hor
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
( incr ) ~x1 #0001 ADD2 DUP2 =x1
~x2 LTH2 ,fill-rect-hor ROT JMP? POP2
~y1 #0001 ADD2 DUP2 =y1
~y2 LTH2 ,fill-rect-ver ROT JMP? POP2
RSW2 POP2
RTS
|c000 @FRAME BRK
|d000 @ERROR BRK
|FFF0 [ f2ac 35bb 2b53 ] ( palette )
|FFF0 [ f2ac 35bb 2b5f ] ( palette )
|FFFA .RESET .FRAME .ERROR ( vectors )