uxn/examples/draw.usm

( 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
;x0 2 ;y0 2 ;x1 2 ;y1 2 ;dx 2 ;dy 2 ;err1 2 ;err2 2 ( line )

|0100 @RESET

	( set dev/write to screen ) 
	#01 =dev/w ( set dev/write to sprite ) 

	#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

	,redraw JSR

BRK

@fillrect
	,h STR2 ,w STR2 ,y STR2 ,x STR2
	,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2
	@fillrectrow
		,x LDR2 ,x_ STR2
		@fillrectcol
			( draw ) ,x_ LDR2 ,y_ LDR2 ,putpixel JSR
			,x_ LDR2 #0001 ADD2 ,x_ STR2 
			,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 LTH2 ,fillrectcol ROT JMP? POP2
		,y_ LDR2 #0001 ADD2 ,y_ STR2 
		,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,fillrectrow ROT JMP? POP2
	RTS

@linerect
	,h STR2 ,w STR2 ,y STR2 ,x STR2
	,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2
	@linerectcol
		( draw ) ,x LDR2 ,y_ LDR2 ,putpixel JSR
		( draw ) ,x LDR2 ,w LDR2 ADD2 ,y_ LDR2 ,putpixel JSR
		,y_ LDR2 #0001 ADD2 ,y_ STR2 
		,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,linerectcol ROT JMP? POP2
	@linerectrow
		( draw ) ,x_ LDR2 ,y LDR2 ,putpixel JSR
		( draw ) ,x_ LDR2 ,y LDR2 ,h LDR2 ADD2 ,putpixel JSR
		,x_ LDR2 #0001 ADD2 ,x_ STR2 
		,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 #0001 ADD2 LTH2 ,linerectrow ROT JMP? POP2
	RTS

@diff16
	OVR2 OVR2 GTH2 ,diff16sub ROT JMP? POP2
	SWP2 @diff16sub SUB2
RTS

@redraw
	#0000 IOW2
	#0000 IOW2
	#00 IOW
	#01 IOW
	RTS

@putpixel 
	IOW2 ( y short )
	IOW2 ( x short )
	,color LDR IOW  ( color byte )
	#00 IOW  ( redraw byte )
	RTS

|c000 @FRAME BRK 
|d000 @ERROR BRK 
|FFFA .RESET .FRAME .ERROR
FillRect example 2021-02-11 16:28:13 -05:00			`( draw routines )`

			`:dev/r fff8 ( std read port )`
			`:dev/w fff9 ( std write port )`

FillRect 2021-02-11 16:56:27 -05:00			`;x_ 2 ;y_ 2 ;x 2 ;y 2 ;w 2 ;h 2 ;color 1`
Improved draw example 2021-02-12 22:51:39 -05:00			`;x0 2 ;y0 2 ;x1 2 ;y1 2 ;dx 2 ;dy 2 ;err1 2 ;err2 2 ( line )`
FillRect example 2021-02-11 16:28:13 -05:00
			`\|0100 @RESET`

			`( set dev/write to screen )`
Reordered devices 2021-02-14 22:43:33 -05:00			`#01 =dev/w ( set dev/write to sprite )`
FillRect example 2021-02-11 16:28:13 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#01 ,color STR`
FillRect example 2021-02-11 16:28:13 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0020 #0020 #0060 #0040 ,fillrect JSR`
FillRect example 2021-02-11 16:28:13 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#02 ,color STR`
FillRect example 2021-02-11 16:28:13 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0030 #0030 #0040 #0060 ,fillrect JSR`
FillRect example 2021-02-11 16:28:13 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#03 ,color STR`
FillRect example 2021-02-11 16:28:13 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0040 #0040 #0060 #0040 ,fillrect JSR`
FillRect example 2021-02-11 16:28:13 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#01 ,color STR`
FillRect 2021-02-11 16:56:27 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#00a0 #0010 #0020 #0020 ,fillrect JSR`
FillRect 2021-02-11 16:56:27 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#02 ,color STR`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#00b0 #0040 #0020 #0020 ,linerect JSR`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#03 ,color STR`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0058 #0028 #0050 #0050 ,linerect JSR`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#01 ,color STR`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`( fill rect x y w h )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0028 #0038 #0050 #0030 ,linerect JSR`
Improved draw example 2021-02-12 22:51:39 -05:00
FillRect example 2021-02-11 16:28:13 -05:00			`,redraw JSR`

			`BRK`

FillRect 2021-02-11 16:56:27 -05:00			`@fillrect`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,h STR2 ,w STR2 ,y STR2 ,x STR2`
			`,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2`
FillRect 2021-02-11 16:56:27 -05:00			`@fillrectrow`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,x LDR2 ,x_ STR2`
FillRect 2021-02-11 16:56:27 -05:00			`@fillrectcol`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`( draw ) ,x_ LDR2 ,y_ LDR2 ,putpixel JSR`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`,x_ LDR2 #0001 ADD2 ,x_ STR2`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 LTH2 ,fillrectcol ROT JMP? POP2`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`,y_ LDR2 #0001 ADD2 ,y_ STR2`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,fillrectrow ROT JMP? POP2`
FillRect 2021-02-11 16:56:27 -05:00			`RTS`

Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`@linerect`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,h STR2 ,w STR2 ,y STR2 ,x STR2`
			`,x LDR2 ,x_ STR2 ,y LDR2 ,y_ STR2`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`@linerectcol`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`( draw ) ,x LDR2 ,y_ LDR2 ,putpixel JSR`
			`( draw ) ,x LDR2 ,w LDR2 ADD2 ,y_ LDR2 ,putpixel JSR`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`,y_ LDR2 #0001 ADD2 ,y_ STR2`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`,y_ LDR2 ,h LDR2 ,y LDR2 ADD2 LTH2 ,linerectcol ROT JMP? POP2`
Added lineRect subroutine 2021-02-11 21:48:45 -05:00			`@linerectrow`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`( draw ) ,x_ LDR2 ,y LDR2 ,putpixel JSR`
			`( draw ) ,x_ LDR2 ,y LDR2 ,h LDR2 ADD2 ,putpixel JSR`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`,x_ LDR2 #0001 ADD2 ,x_ STR2`
			`,x_ LDR2 ,w LDR2 ,x LDR2 ADD2 #0001 ADD2 LTH2 ,linerectrow ROT JMP? POP2`
Improved draw example 2021-02-12 22:51:39 -05:00			`RTS`

			`@diff16`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`OVR2 OVR2 GTH2 ,diff16sub ROT JMP? POP2`
			`SWP2 @diff16sub SUB2`
Improved draw example 2021-02-12 22:51:39 -05:00			`RTS`

FillRect example 2021-02-11 16:28:13 -05:00			`@redraw`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#0000 IOW2`
			`#0000 IOW2`
			`#00 IOW`
			`#01 IOW`
FillRect example 2021-02-11 16:28:13 -05:00			`RTS`

			`@putpixel`
Minor changes to the asm syntax 2021-02-13 11:38:23 -05:00			`IOW2 ( y short )`
			`IOW2 ( x short )`
FillRect example 2021-02-11 16:28:13 -05:00			`,color LDR IOW ( color byte )`
Rewrote hello world to not use the stack 2021-02-13 19:37:03 -05:00			`#00 IOW ( redraw byte )`
FillRect example 2021-02-11 16:28:13 -05:00			`RTS`

			`\|c000 @FRAME BRK`
			`\|d000 @ERROR BRK`
			`\|FFFA .RESET .FRAME .ERROR`