(
	app/nasu : spritesheet editor

	arrows - move selection
	ctrl+arrows - change page
	left-click  - add pixel
	right-click  - remove pixel
	1 2 3  - select brush

	TODO:
		Copy in 2 bits mode, copies 2 tiles
		Modify up to 4 pages
		Save/load/rename
		Select paint color for 2-bit mode
)

%RTN { JMP2r }
%STEP8 { #0033 SFT2 }

%++ { #0001 ADD2 } %-- { #0001 SUB2 }
%2/ { #0001 SFT2 } %2* { #0010 SFT2 }
%8/ { #0003 SFT2 } %8* { #0030 SFT2 }
%8- { #0008 SUB2 } %8+ { #0008 ADD2 }
%SFL { #40 SFT SFT }
%MOD { DUP2 DIV MUL SUB }
%LTS2  { #8000 ADD2 SWP2 #8000 ADD2 GTH2 }
%GTS2  { #8000 ADD2 SWP2 #8000 ADD2 LTH2 }

%SIZE-TO-RECT {
	STH2 STH2 OVR2 STH2r ADD2 OVR2 STH2r ADD2
} ( x y w h -- x1 y1 x2 y2 )

%SET-RECT {
	DUP2 ROT2 SWP2 #0006 ADD2 PUT2
	DUP2 ROT2 SWP2 #0004 ADD2 PUT2
	DUP2 ROT2 SWP2 #0002 ADD2 PUT2
	DUP2 ROT2 SWP2 PUT2
	POP2
} ( x1 y1 x2 y2 addr -- )

%BANK { #2000 }

( devices )

|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
|10 @Console [ &vector $2 &pad $6 &char $1 &byte $1 &short $2 &string $2 ]
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
|80 @Controller [ &vector $2 &button $1 &key $1 ]
|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ]
|a0 @File [ &vector $2 &success $2 &offset $2 &pad $2 &name $2 &length $2 &load $2 &save $2 ]

( variables )

|0000

@settings [ &blending $1 &depth $1 &brush $1 &page $2 &tile $2 ]

@frame [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 &width $2 &height $2 ]
@bankview [ &x $2 &y $2 &mode $1 &selection $1 ]
@tileview [ &x $2 &y $2 ]
@colorview [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@blendview [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@dataview [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@rect [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@mouse [ &x $2 &y $2 ]
@color [ &byte $1 ]
@i [ &byte $1 ]
@pt [ &x $1 &y $1 ]
@addr [ &short $2 ]
@pos [ &x $2 &y $2 ]

( program )

|0100

	( theme ) #0efc .System/r DEO2 #03cc .System/g DEO2 #03ac .System/b DEO2
	( vectors ) ;on-button .Controller/vector DEO2
	( vectors ) ;on-mouse .Mouse/vector DEO2
	( vectors ) ;on-transfer .File/vector DEO2

	( set frame )
	#0130 .frame/width POK2
	#00a8 .frame/height POK2
	#01 .settings/brush POK

	.Screen/width DEI2 2/ .frame/width PEK2 2/ SUB2
	.Screen/height DEI2 2/ .frame/height PEK2 2/ SUB2 #0010 ADD2
	.frame/width PEK2 .frame/height PEK2
	SIZE-TO-RECT ;frame SET-RECT

	.frame/x1 PEK2 #0010 ADD2 .bankview/x POK2
	.frame/y1 PEK2 .bankview/y POK2
	BANK .settings/page POK2

	.frame/x2 PEK2 #0098 SUB2 .tileview/x POK2
	.frame/y1 PEK2 .tileview/y POK2
	BANK #0448 ADD2 .settings/tile POK2

	.frame/x1 PEK2 #0010 ADD2 .frame/y2 PEK2 #0020 SUB2 #0020 #0020 SIZE-TO-RECT ;blendview SET-RECT
	.frame/x1 PEK2 #0038 ADD2 .frame/y2 PEK2 #0020 SUB2 #0020 #0020 SIZE-TO-RECT ;colorview SET-RECT
	.frame/x2 PEK2 #0010 SUB2 .frame/y1 PEK2 #0010 #0080 SIZE-TO-RECT ;dataview SET-RECT

	#01 .settings/blending POK

	;filepath1 .File/name DEO2 #0800 .File/length DEO2 BANK .File/load DEO2
	;filepath2 .File/name DEO2 #0800 .File/length DEO2 BANK #0800 ADD2 .File/load DEO2
	;filepath3 .File/name DEO2 #1000 .File/length DEO2 BANK #1000 ADD2 .File/load DEO2
	;filepath4 .File/name DEO2 #1000 .File/length DEO2 BANK #2000 ADD2 .File/load DEO2
	;filepath5 .File/name DEO2 #1000 .File/length DEO2 BANK #2800 ADD2 .File/load DEO2
	;filepath6 .File/name DEO2 #1000 .File/length DEO2 BANK #3800 ADD2 .File/load DEO2

	#40 DUP .bankview/selection POK ;select-tile JSR2

	( ~frame.x1 ~frame.y1 ~frame.x2 ~frame.y2 #01 ,line-rect JSR2 )

BRK

@on-transfer ( -> )
	
	;redraw JSR2
	
BRK

@on-button ( -> )
	
	( arrow button )
	.Controller/button DEI #00 EQU ;&no-button JNZ2
		.Controller/button DEI #11 NEQ ,&no-pageup JNZ .settings/page PEK2
			#0800 SUB2 .settings/page POK2 ;redraw JSR2 BRK &no-pageup
		.Controller/button DEI #21 NEQ ,&no-pagedown JNZ .settings/page PEK2
			#0800 ADD2 .settings/page POK2 ;redraw JSR2 BRK &no-pagedown
		.Controller/button DEI #f0 AND
		DUP #04 SFT #01 AND #01 NEQ ,&no-up JNZ
			( move ) .bankview/selection PEK #10 SUB .bankview/selection POK &no-up
		DUP #05 SFT #01 AND #01 NEQ ,&no-down JNZ
			( move ) .bankview/selection PEK #10 ADD .bankview/selection POK &no-down
		DUP #06 SFT #01 AND #01 NEQ ,&no-left JNZ
			( move ) .bankview/selection PEK #01 SUB .bankview/selection POK &no-left
		DUP #07 SFT #01 AND #01 NEQ ,&no-right JNZ
			( move ) .bankview/selection PEK #01 ADD .bankview/selection POK &no-right
		POP
		.bankview/selection PEK ;select-tile JSR2
	&no-button

	.Controller/key DEI #00 EQU ,&no-key JNZ
		.Controller/key DEI #31 LTH ,&no-number JNZ
		.Controller/key DEI #33 GTH ,&no-number JNZ
		( select ) .Controller/key DEI #31 SUB .bankview/mode POK
			;redraw JSR2
		&no-number
		.Controller/key DEI #20 NEQ ,&no-space JNZ
			;toggle-depth JSR2
			;redraw JSR2
		&no-space
	&no-key

BRK

@on-mouse ( -> )
	
	;draw-cursor JSR2

	.Mouse/state DEI #00 NEQ ,&no-touch JNZ BRK &no-touch

	( toolbar )
	.Mouse/y DEI2 .bankview/y PEK2 #0010 SUB2 SUB2 8/ #0000 NEQ2 ;&no-toolbar-click JNZ2
		( brush )
		.Mouse/x DEI2 .bankview/x PEK2 SUB2 8/ #000d LTH2 ,&no-brush-click JNZ
		.Mouse/x DEI2 .bankview/x PEK2 SUB2 8/ #000f GTH2 ,&no-brush-click JNZ
			( select ) .mouse/x PEK2 .bankview/x PEK2 SUB2 8/ #000d SUB2 SWP POP .bankview/mode POK
		&no-brush-click
		.Mouse/x DEI2 .bankview/x PEK2 SUB2 8/ #0005 NEQ2 ,&no-toggle-depth JNZ
			;toggle-depth JSR2
		&no-toggle-depth
			( release ) #00 .Mouse/state DEO
			;redraw JSR2 BRK
	&no-toolbar-click

	( bankview )
	.Mouse/x DEI2 .bankview/x PEK2 GTH2 .Mouse/x DEI2 .bankview/x PEK2 #0080 ADD2 LTH2 #0101 EQU2
	.Mouse/y DEI2 .bankview/y PEK2 GTH2 .Mouse/y DEI2 .bankview/y PEK2 #0080 ADD2 LTH2 #0101 EQU2
	#0101 EQU2 ;on-touch-bankview JNZ2

	( tileview )
	.Mouse/x DEI2 .tileview/x PEK2 GTH2 .Mouse/x DEI2 .tileview/x PEK2 #0080 ADD2 LTH2 #0101 EQU2
	.Mouse/y DEI2 .tileview/y PEK2 GTH2 .Mouse/y DEI2 .tileview/y PEK2 #0080 ADD2 LTH2 #0101 EQU2
	#0101 EQU2 ;on-touch-tileview JNZ2

	( dataview )
	.Mouse/x DEI2 DUP2 .dataview/x1 PEK2 GTH2 ROT ROT .dataview/x2 PEK2 LTH2 #0101 EQU2
	.Mouse/y DEI2 DUP2 .dataview/y1 PEK2 GTH2 ROT ROT .dataview/y2 PEK2 LTH2 #0101 EQU2
	#0101 EQU2 ;on-touch-dataview JNZ2

	( blendbiew )
	.Mouse/x DEI2 DUP2 .blendview/x1 PEK2 GTH2 ROT ROT .blendview/x2 PEK2 LTH2 #0101 EQU2
	.Mouse/y DEI2 DUP2 .blendview/y1 PEK2 GTH2 ROT ROT .blendview/y2 PEK2 LTH2 #0101 EQU2
	#0101 EQU2 ;on-touch-blendview JNZ2

	( colorview )
	.Mouse/x DEI2 DUP2 .colorview/x1 PEK2 GTH2 ROT ROT .colorview/x2 PEK2 LTH2 #0101 EQU2
	.Mouse/y DEI2 DUP2 .colorview/y1 PEK2 GTH2 ROT ROT .colorview/y2 PEK2 LTH2 #0101 EQU2
	#0101 EQU2 ;on-touch-colorview JNZ2

BRK

@on-touch-bankview ( -> )
	
	.bankview/mode PEK #01 NEQ ,&not-copy-mode JNZ
		#00 .i POK
		&copy-loop
			( load ) .settings/tile PEK2 .i PEK ADD GET
			( get touch addr )
			.Mouse/x DEI2 .bankview/x PEK2 SUB2 STEP8
			.Mouse/y DEI2 .bankview/y PEK2 SUB2 STEP8 #0010 MUL2 ADD2
			( 2-bit mode ) #00 .settings/depth PEK #01 ADD MUL2
			.settings/page PEK2 ADD2 #00 .i PEK ADD2 PUT
			( incr ) .i PEK #01 ADD .i POK
			.i PEK #08 LTH ,&copy-loop JNZ
		;redraw JSR2 BRK
	&not-copy-mode

	.bankview/mode PEK #02 NEQ ,&not-erase-mode JNZ
		#00 .i POK
		&erase-loop
			#00
			( get touch addr )
			.Mouse/x DEI2 .bankview/x PEK2 SUB2 STEP8
			.Mouse/y DEI2 .bankview/y PEK2 SUB2 STEP8 #0010 MUL2 ADD2
			( 2-bit mode ) #00 .settings/depth PEK #01 ADD MUL2
			.settings/page PEK2 ADD2 #00 .i PEK ADD2 PUT
			( incr ) .i PEK #01 ADD .i POK
			.i PEK #08 LTH ,&erase-loop JNZ
		;redraw JSR2 BRK
	&not-erase-mode

	( select )

	.Mouse/x DEI2 .bankview/x PEK2 SUB2 8/ SWP POP
	.Mouse/y DEI2 .bankview/y PEK2 SUB2 8/ SWP POP #40 SFT ADD
	DUP .bankview/selection POK
	;select-tile JSR2

BRK

@on-touch-tileview ( -> )
	
	.Mouse/x DEI2 .tileview/x PEK2 SUB2 STEP8 #0040 DIV2
	.Mouse/y DEI2 .tileview/y PEK2 SUB2 STEP8 #0040 DIV2 2* ADD2
	8*
	.settings/tile PEK2 ADD2 .addr POK2 ( addr offset )
	.Mouse/x DEI2 .tileview/x PEK2 SUB2 .Mouse/x DEI2 .tileview/x PEK2 SUB2 #0040 DIV2 #0040 MUL2 SUB2 .pos/x POK2
	.Mouse/y DEI2 .tileview/y PEK2 SUB2 .Mouse/y DEI2 .tileview/y PEK2 SUB2 #0040 DIV2 #0040 MUL2 SUB2 .pos/y POK2
	.Mouse/state DEI #10 NEQ ,&no-erase-mode JNZ
		( load ) .addr PEK2 .pos/y PEK2 8/ ADD2 GET
		( mask ) #01 #07 .pos/x PEK2 8/ SWP POP SUB SFL
		#ff EOR AND
		( save ) .addr PEK2 .pos/y PEK2 8/ ADD2 PUT
		;redraw JSR2 BRK
	&no-erase-mode
	( load ) .addr PEK2 .pos/y PEK2 8/ ADD2 GET
	( mask ) #01 #07 .pos/x PEK2 8/ SWP POP SUB SFL
	ORA
	( save ) .addr PEK2 .pos/y PEK2 8/ ADD2 PUT
	;redraw JSR2

BRK

@on-touch-dataview ( -> )

	.Mouse/y DEI2 .dataview/y1 PEK2 SUB2 STEP8 SWP POP #60 EQU ,&skip JNZ BRK &skip
	.Mouse/x DEI2 .dataview/x1 PEK2 SUB2 #0008 DIV2 SWP POP
	DUP #00 NEQ ,&no-move-up JNZ
		;op_shiftup JSR2
		( release ) #00 .Mouse/state DEO
		;redraw JSR2 POP BRK &no-move-up
	DUP #01 NEQ ,&no-move-down JNZ
		;op_shiftdown JSR2
		( release ) #00 .Mouse/state DEO
		;redraw JSR2 POP BRK &no-move-down
	POP

BRK

@on-touch-blendview ( -> )

	.Mouse/x DEI2 .blendview/x1 PEK2 SUB2 8/ SWP POP
	.Mouse/y DEI2 .blendview/y1 PEK2 SUB2 8/ SWP POP #04 MUL ADD
	.settings/blending POK
	( release ) #00 .Mouse/state DEO
	;redraw JSR2

BRK

@on-touch-colorview ( -> )

	( channel ) .Mouse/y DEI2 .colorview/y1 PEK2 SUB2 8/ SWP POP STH
	( rgb ) .Mouse/x DEI2 .colorview/x1 PEK2 SUB2 8/ SWP POP
	DUP #00 NEQ ,&no-brush JNZ
		DUPr STHr .settings/brush POK &no-brush
	DUP #01 NEQ ,&no-red JNZ
		DUPr STHr .System/r ;set-color JSR2 &no-red
	DUP #02 NEQ ,&no-green JNZ
		DUPr STHr .System/g ;set-color JSR2 &no-green
	DUP #03 NEQ ,&no-blue JNZ
		DUPr STHr .System/b ;set-color JSR2 &no-blue
	POP POPr
	( release ) #00 .Mouse/state DEO
	;redraw JSR2

BRK

@set-color ( color rgb -- )
	
	STH
	DUP #00 NEQ ,&no-red0 JNZ
		DUPr STHr DEI DUP #04 SFT #01 ADD
		( add/sub ) .Mouse/state DEI #10 EQU #fe MUL ADD
		( resume ) #40 SFT SWP #0f AND ADD DUPr STHr DEO
		&no-red0
	DUP #01 NEQ ,&no-red1 JNZ
		DUPr STHr DEI DUP #0f AND #01 ADD
		( add/sub ) .Mouse/state DEI #10 EQU #fe MUL ADD
		( resume ) #0f AND SWP #f0 AND ADD DUPr STHr DEO
		&no-red1
	DUP #02 NEQ ,&no-red2 JNZ
		DUPr STHr #01 ADD DEI DUP #04 SFT #01 ADD
		( add/sub ) .Mouse/state DEI #10 EQU #fe MUL ADD
		( resume ) #40 SFT SWP #0f AND ADD DUPr STHr #01 ADD DEO
		&no-red2
	DUP #03 NEQ ,&no-red3 JNZ
		DUPr STHr #01 ADD DEI DUP #0f AND #01 ADD
		( add/sub ) .Mouse/state DEI #10 EQU #fe MUL ADD
		( resume ) #0f AND SWP #f0 AND ADD DUPr STHr #01 ADD DEO
		&no-red3
	POP
	POPr

RTN

@select-tile ( pos -- )

	( x y ) DUP #0f AND SWP #04 SFT
	( y ) #10 MOD #10 MUL #00 SWP 8*
	( x ) ROT #10 MOD #00 SWP 8* ADD2
	( 2-bit mode ) #00 .settings/depth PEK #01 ADD MUL2
	( offset ) .settings/page PEK2 ADD2 .settings/tile POK2
	;redraw JSR2

RTN

@toggle-depth ( -- )
	
	.bankview/selection PEK
	.settings/depth PEK #00 EQU .settings/depth POK
	;select-tile JSR2

RTN

@op_shiftup
	
	.settings/tile PEK2 GET
	.settings/tile PEK2 #0001 ADD2 GET .settings/tile PEK2 PUT
	.settings/tile PEK2 #0002 ADD2 GET .settings/tile PEK2 #0001 ADD2 PUT
	.settings/tile PEK2 #0003 ADD2 GET .settings/tile PEK2 #0002 ADD2 PUT
	.settings/tile PEK2 #0004 ADD2 GET .settings/tile PEK2 #0003 ADD2 PUT
	.settings/tile PEK2 #0005 ADD2 GET .settings/tile PEK2 #0004 ADD2 PUT
	.settings/tile PEK2 #0006 ADD2 GET .settings/tile PEK2 #0005 ADD2 PUT
	.settings/tile PEK2 #0007 ADD2 GET .settings/tile PEK2 #0006 ADD2 PUT
	.settings/tile PEK2 #0007 ADD2 PUT

RTN

@op_shiftdown
	
	.settings/tile PEK2 #0007 ADD2 GET
	.settings/tile PEK2 #0006 ADD2 GET .settings/tile PEK2 #0007 ADD2 PUT
	.settings/tile PEK2 #0005 ADD2 GET .settings/tile PEK2 #0006 ADD2 PUT
	.settings/tile PEK2 #0004 ADD2 GET .settings/tile PEK2 #0005 ADD2 PUT
	.settings/tile PEK2 #0003 ADD2 GET .settings/tile PEK2 #0004 ADD2 PUT
	.settings/tile PEK2 #0002 ADD2 GET .settings/tile PEK2 #0003 ADD2 PUT
	.settings/tile PEK2 #0001 ADD2 GET .settings/tile PEK2 #0002 ADD2 PUT
	.settings/tile PEK2 GET .settings/tile PEK2 #0001 ADD2 PUT
	.settings/tile PEK2 PUT

RTN

@redraw
	
	;draw-bankview JSR2
	;draw-tileview JSR2
	;draw-blendview JSR2
	;draw-colorview JSR2
	;draw-dataview JSR2

RTN

@draw-bankview
	
	.bankview/x PEK2 #0002 SUB2 .bankview/y PEK2 #0002 SUB2 .bankview/x PEK2 #0081 ADD2 .bankview/y PEK2 #0081 ADD2 #03 ;line-rect JSR2

	( position )

	.bankview/x PEK2 .Screen/x DEO2
	.bankview/y PEK2 #0010 SUB2 .Screen/y DEO2
	.settings/page PEK2 ;draw-short JSR2

	( toolbar )

	.bankview/y PEK2 #0010 SUB2 .Screen/y DEO2

	.bankview/x PEK2 #0028 ADD2 .Screen/x DEO2
	;depth_icns #00 .settings/depth PEK 8* ADD2 .Screen/addr DEO2
	#23 .Screen/color DEO

	.bankview/x PEK2 #0068 ADD2 .Screen/x DEO2
	;tool_selector .Screen/addr DEO2
	#21 .bankview/mode PEK #00 EQU ADD .Screen/color DEO

	.Screen/x DEI2 8+ .Screen/x DEO2
	;tool_hand .Screen/addr DEO2
	#21 .bankview/mode PEK #01 EQU ADD .Screen/color DEO

	.Screen/x DEI2 8+ .Screen/x DEO2
	;tool_eraser .Screen/addr DEO2
	#21 .bankview/mode PEK #02 EQU ADD .Screen/color DEO

	( guides )

	.bankview/x PEK2 #0010 SUB2 .Screen/x DEO2
	.bankview/y PEK2 .Screen/y DEO2
	;font_hex .Screen/addr DEO2
	#00 #10
	&guides
		( draw ) OVR .bankview/selection PEK #04 SFT EQU #22 ADD .Screen/color DEO
		.Screen/addr DEI2 8+ .Screen/addr DEO2
		.Screen/y DEI2 8+ .Screen/y DEO2
		SWP #01 ADD SWP
		DUP2 LTH ,&guides JNZ
	POP2

	( draw page )

	( load ) .settings/page PEK2 .Screen/addr DEO2
	.bankview/y PEK2 DUP2 #0080 ADD2
	&ver
		( save ) OVR2 .Screen/y DEO2
		.bankview/x PEK2 DUP2 #0080 ADD2
		&hor
			( save ) OVR2 .Screen/x DEO2
			( get selected ) .Screen/addr DEI2 .settings/tile PEK2 EQU2
			( get blending ) .settings/blending PEK
			( get depth ) .settings/depth PEK #20 MUL
			( draw ) #20 ADD ADD ADD .Screen/color DEO
			( incr ) SWP2 8+ SWP2
			( incr ) .Screen/addr DEI2 8+ #00 .settings/depth PEK #0008 MUL2 ADD2 .Screen/addr DEO2
			OVR2 OVR2 LTH2 ,&hor JNZ
		POP2 POP2
		( incr ) SWP2 8+ SWP2
		OVR2 OVR2 LTH2 ,&ver JNZ
	POP2 POP2

RTN

@draw-tileview

	.tileview/x PEK2 #0002 SUB2 .tileview/y PEK2 #0002 SUB2 .tileview/x PEK2 #0080 ADD2 .tileview/y PEK2 #0081 ADD2 #03 ;line-rect JSR2

	.tileview/x PEK2 #0028 ADD2 .Screen/x DEO2
	.tileview/y PEK2 #0010 SUB2 .Screen/y DEO2
	.settings/tile PEK2 .Screen/addr DEO2

	( get blending ) .settings/blending PEK
	( get depth ) .settings/depth PEK #20 MUL
	( draw ) #20 ADD ADD .Screen/color DEO

	( position )

	.tileview/x PEK2 .Screen/x DEO2
	.tileview/y PEK2 #0010 SUB2 .Screen/y DEO2
	.settings/tile PEK2 ;draw-short JSR2

	( body )

	.tileview/x PEK2 .Screen/x DEO2
	.tileview/y PEK2 .Screen/y DEO2
	.settings/tile PEK2 .settings/tile POK2
	;draw-tileview-icn JSR2

	.tileview/x PEK2 #0040 ADD2 .Screen/x DEO2
	.tileview/y PEK2 .Screen/y DEO2
	.settings/tile PEK2 8+ .settings/tile POK2
	;draw-tileview-icn JSR2

	.tileview/x PEK2 .Screen/x DEO2
	.tileview/y PEK2 #0040 ADD2 .Screen/y DEO2
	.settings/tile PEK2 8+ .settings/tile POK2
	;draw-tileview-icn JSR2

	.tileview/x PEK2 #0040 ADD2 .Screen/x DEO2
	.tileview/y PEK2 #0040 ADD2 .Screen/y DEO2
	.settings/tile PEK2 8+ .settings/tile POK2
	;draw-tileview-icn JSR2

	( line hor )
	.tileview/y PEK2 #003f ADD2 .Screen/y DEO2
	.tileview/x PEK2 .Screen/x DEO2
	&line-hor
		( draw ) #03 .Screen/color DEO
		( incr ) .Screen/x DEI2 #0002 ADD2 .Screen/x DEO2
	.Screen/x DEI2 .tileview/x PEK2 #0082 ADD2 LTH2 ,&line-hor JNZ

	( line ver )
	.tileview/y PEK2 .Screen/y DEO2
	.tileview/x PEK2 #003f ADD2 .Screen/x DEO2
	&line-ver
		( draw ) #03 .Screen/color DEO
		( incr ) .Screen/y DEI2 #0002 ADD2 .Screen/y DEO2
	.Screen/y DEI2 .tileview/y PEK2 #0081 ADD2 LTH2 ,&line-ver JNZ

	( rewind ) .settings/tile PEK2 #0018 SUB2 .settings/tile POK2

RTN

@draw-tileview-icn

	#00 .pt/x POK #00 .pt/y POK
	&ver
		#00 .pt/x POK
		&hor
			( get bit )
			;blank_icn #00
			.settings/tile PEK2 #00 .pt/y PEK ADD2 GET #07 .pt/x PEK SUB SFT #01 AND ( get bit )
			8* ADD2 .Screen/addr DEO2 ( add *8 )
			( draw ) #21 .Screen/color DEO
			( incr ) .Screen/x DEI2 8+ .Screen/x DEO2
			( incr ) .pt/x PEK #01 ADD .pt/x POK
			.pt/x PEK #08 LTH ;&hor JNZ2
		( incr ) .Screen/y DEI2 8+ .Screen/y DEO2
		( incr ) .pt/y PEK #01 ADD .pt/y POK
		.Screen/x DEI2 #0040 SUB2 .Screen/x DEO2
		.pt/y PEK #08 LTH ;&ver JNZ2

RTN

@draw-blendview ( -- )
	
	.blendview/x1 PEK2 #0002 SUB2 .blendview/y1 PEK2 #0002 SUB2 .blendview/x2 PEK2 #0001 ADD2 .blendview/y2 PEK2 #0001 ADD2 #03 ;line-rect JSR2

	.settings/tile PEK2 .Screen/addr DEO2
	#00 #10
	&loop
		OVR #04 MOD #00 SWP #0008 MUL2 .blendview/x1 PEK2 ADD2 .Screen/x DEO2
		OVR #04 DIV #00 SWP #0008 MUL2 .blendview/y1 PEK2 ADD2 .Screen/y DEO2
		#20 .Screen/color DEO
		OVR #20 ADD .settings/depth PEK #20 MUL ADD .Screen/color DEO
		SWP #01 ADD SWP
		DUP2 LTH ,&loop JNZ
	POP2

	.blendview/x1 PEK2 #0002 SUB2 .blendview/y2 PEK2 #0001 ADD2 .blendview/x1 PEK2 #000e ADD2 .blendview/y2 PEK2 #0009 ADD2 #03 ;line-rect JSR2
	.blendview/x1 PEK2 #0001 SUB2 .Screen/x DEO2
	.blendview/y2 PEK2 #0001 ADD2 .Screen/y DEO2

	( get blending ) .settings/blending PEK
	( get depth ) .settings/depth PEK #20 MUL
	( draw ) #20 ADD ADD #2c ;draw-byte JSR2

RTN

@draw-dataview ( -- )

	( bytes )

	.tileview/y PEK2 #0018 ADD2 .Screen/y DEO2
	#00 .i POK
	&bytes
		.tileview/x PEK2 #0088 ADD2 .Screen/x DEO2
		.settings/tile PEK2 #00 .i PEK ADD2 GET #22 ;draw-byte JSR2
		( incr ) .i PEK #01 ADD .i POK
		( incr ) .Screen/y DEI2 8+ .Screen/y DEO2
	.i PEK #08 LTH ;&bytes JNZ2

	( operations )

	.Screen/y DEI2 8+ .Screen/y DEO2
	;movedown_icn .Screen/addr DEO2
	#21 .Screen/color DEO
	.Screen/x DEI2 8- .Screen/x DEO2
	;moveup_icn .Screen/addr DEO2
	#21 .Screen/color DEO

	( draw tiles 2x2 )
	.tileview/y PEK2 .Screen/y DEO2
	#00 .pt/x POK #00 .pt/y POK .settings/tile PEK2 .Screen/addr DEO2

	&tiles-ver
		#00 .pt/x POK
		.tileview/x PEK2 #0088 ADD2 .Screen/x DEO2
		&tiles-hor
			( draw ) #23 .Screen/color DEO
			( incr ) .Screen/x DEI2 8+ .Screen/x DEO2
			( incr ) .Screen/addr DEI2 8+ .Screen/addr DEO2
			( incr ) .pt/x PEK #01 ADD .pt/x POK
			.pt/x PEK #02 LTH ;&tiles-hor JNZ2
		( incr ) .pt/y PEK #01 ADD .pt/y POK
		( incr ) .Screen/y DEI2 8+ .Screen/y DEO2
		.pt/y PEK #02 LTH ;&tiles-ver JNZ2

RTN

@draw-colorview ( -- )
	
	.colorview/y1 PEK2 #18 ADD .Screen/y DEO2
	.colorview/x1 PEK2 #08 ADD .Screen/x DEO2
	.System/r DEI2 ;draw-color-code JSR2
	.colorview/y1 PEK2 #18 ADD .Screen/y DEO2
	.colorview/x1 PEK2 #10 ADD .Screen/x DEO2
	.System/g DEI2 ;draw-color-code JSR2
	.colorview/y1 PEK2 #18 ADD .Screen/y DEO2
	.colorview/x1 PEK2 #18 ADD .Screen/x DEO2
	.System/b DEI2 ;draw-color-code JSR2	

	.colorview/x1 PEK2 .Screen/x DEO2
	;circle_icns .Screen/addr DEO2

	#00 #04
	&loop
		OVR .settings/brush PEK EQU #00 SWP #0008 MUL2 ;circle_icns ADD2 .Screen/addr DEO2
		OVR .colorview/y1 PEK2 ROT #00 SWP #0008 MUL2 ADD2 .Screen/y DEO2
		OVR #20 ADD .Screen/color DEO
		SWP #01 ADD SWP
		DUP2 LTH ,&loop JNZ
	POP2

RTN

@draw-color-code ( color* -- )
	
	DUP ;font_hex ROT #0f AND #08 MUL #00 SWP ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.colorview/y1 PEK2 #10 ADD .Screen/y DEO2
	;font_hex ROT #04 SFT #08 MUL #00 SWP ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.colorview/y1 PEK2 #08 ADD .Screen/y DEO2
	DUP ;font_hex ROT #0f AND #08 MUL #00 SWP ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.colorview/y1 PEK2 .Screen/y DEO2
	;font_hex ROT #04 SFT #08 MUL #00 SWP ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO

RTN

@draw-cursor

	( clear last cursor )
	.mouse/x PEK2 .Screen/x DEO2
	.mouse/y PEK2 .Screen/y DEO2
	;blank_icn .Screen/addr DEO2
	#30 .Screen/color DEO

	( record mouse positions )
	.Mouse/x DEI2 .mouse/x POK2
	.Mouse/y DEI2 .mouse/y POK2

	( draw new cursor )
	.mouse/x PEK2 .Screen/x DEO2
	.mouse/y PEK2 .Screen/y DEO2
	;tool_selector #00 .bankview/mode PEK #08 MUL ADD2 .Screen/addr DEO2
	#32 .Mouse/state DEI #00 NEQ ADD .Screen/color DEO

RTN

@draw-byte ( byte color -- )
	
	.color POK STH
	;font_hex #00 DUPr STHr #f0 AND #04 SFT #08 MUL ADD2 .Screen/addr DEO2
	( draw ) .color PEK .Screen/color DEO
	.Screen/x DEI2 8+ .Screen/x DEO2
	;font_hex #00 STHr #0f AND #08 MUL ADD2 .Screen/addr DEO2
	( draw ) .color PEK .Screen/color DEO

RTN

@draw-short ( short -- )

	.addr POK2
	;font_hex #00 ;addr GET #f0 AND #04 SFT #08 MUL ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.Screen/x DEI2 8+ .Screen/x DEO2
	;font_hex #00 ;addr GET #0f AND #08 MUL ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.Screen/x DEI2 8+ .Screen/x DEO2
	;font_hex #00 ;addr ++ GET #f0 AND #04 SFT #08 MUL ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO
	.Screen/x DEI2 8+ .Screen/x DEO2
	;font_hex #00 ;addr ++ GET #0f AND #08 MUL ADD2 .Screen/addr DEO2
	( draw ) #22 .Screen/color DEO

RTN

( Utils )

@line-rect ( x1 y1 x2 y2 color -- )

	( load ) .color POK DUP2 STH2 .rect/y2 POK2 .rect/x2 POK2 DUP2 STH2 .rect/y1 POK2 .rect/x1 POK2
	STH2r STH2r
	&ver
		( save ) OVR2 .Screen/y DEO2
		( draw ) .rect/x1 PEK2 .Screen/x DEO2 .color PEK DUP .Screen/color DEO
		( draw ) .rect/x2 PEK2 .Screen/x DEO2 .Screen/color DEO
		( incr ) SWP2 ++ SWP2
		OVR2 OVR2 LTS2 ,&ver JNZ
	POP2 POP2
	.rect/x1 PEK2 .rect/x2 PEK2
	&hor
		( save ) OVR2 .Screen/x DEO2
		( draw ) .rect/y1 PEK2 .Screen/y DEO2 .color PEK DUP .Screen/color DEO
		( draw ) .rect/y2 PEK2 .Screen/y DEO2 .Screen/color DEO
		( incr ) SWP2 ++ SWP2
		OVR2 OVR2 ++ LTS2 ,&hor JNZ
	POP2 POP2

RTN

@circle_icns
	[ 0038 7cfe fefe 7c38 ] ( full )
	[ 0038 4482 8282 4438 ] ( line )
@eye_icns
	[ 0038 4492 2810 0000 ] ( open )
	[ 0000 0082 4438 0000 ] ( closed )
@tool_selector [ 80c0 e0f0 f8e0 1000 ]
@tool_hand     [ 2020 20b8 7c7c 3838 ]
@tool_eraser   [ 2050 b87c 3e1c 0800 ]
@moveup_icn    [ 0010 387c fe10 1000 ]
@movedown_icn  [ 0010 1010 fe7c 3810 ]
@blank_icn     [
	0000 0000 0000 0000
	7cfe fefe fefe 7c00
]
@depth_icns [
	00fe 8282 fe82 82fe
	00fe 9292 fe92 92fe
]
@filepath1     [ "projects/fonts/specter8.bit 00 ]
@filepath2     [ "projects/pictures/cibo.bit 00 ]
@filepath3     [ "projects/pictures/zerotwo10x10.chr 00 ]
@filepath4     [ "projects/fonts/katahira8.bit 00 ]
@filepath5     [ "projects/pictures/ako10x10.chr 00 ]
@filepath6     [ "projects/pictures/cyr4x4.chr 00 ]

@font_hex ( 0-F )
[
	007c 8282 8282 827c 0030 1010 1010 1010
	007c 8202 7c80 80fe 007c 8202 1c02 827c
	000c 1424 4484 fe04 00fe 8080 7c02 827c
	007c 8280 fc82 827c 007c 8202 1e02 0202
	007c 8282 7c82 827c 007c 8282 7e02 827c
	007c 8202 7e82 827e 00fc 8282 fc82 82fc
	007c 8280 8080 827c 00fc 8282 8282 82fc
	007c 8280 f080 827c 007c 8280 f080 8080
]