diff --git a/README.md b/README.md
index 7781725..0cd373c 100644
--- a/README.md
+++ b/README.md
@@ -53,11 +53,10 @@ evaluxn(u, u->vframe); /* Each frame
 ```
 ( hello world )
 
-:dev/w fff9 ( const write port )
+&Console { pad 8 stdio 1 }
 
 |0100 @RESET 
 	
-	#00 =dev/w ( set dev/write to console ) 
 	,text1 ,print-label JSR ( print to console )
 
 BRK
@@ -65,7 +64,7 @@ BRK
 @print-label ( text )
 
 	@cliloop
-		DUP2 LDR IOW                             ( write pointer value to console )
+		DUP2 LDR =dev/console.stdio              ( write pointer value to console )
 		#0001 ADD2                               ( increment string pointer )
 		DUP2 LDR #00 NEQ ,cliloop ROT JMP? POP2  ( while *ptr!=0 goto loop )
 	POP2
@@ -77,6 +76,8 @@ RTS
 |c000 @FRAME
 |d000 @ERROR 
 
+|FF00 ;dev/console Console
+
 |FFF0 [ f3f0 f30b f30a ] ( palette )
 |FFFA .RESET .FRAME .ERROR
 ```
@@ -113,10 +114,6 @@ A device that works like a NES controller, each button is a bit from a single by
 - GUI:
 	- Line routine
 
-### Devices redesign
-
-- Possibly remove
-
 ### Assembler
 
 - Includes
diff --git a/assembler.c b/assembler.c
index 69118f8..a151410 100644
--- a/assembler.c
+++ b/assembler.c
@@ -44,7 +44,7 @@ Program p;
 /* clang-format off */
 
 char ops[][4] = {
-	"BRK", "NOP", "LIT", "---", "IOR", "IOW", "LDR", "STR",
+	"BRK", "NOP", "LIT", "---", "---", "---", "LDR", "STR",
 	"JMP", "JSR", "---", "RTS", "AND", "ORA", "ROL", "ROR",
 	"POP", "DUP", "SWP", "OVR", "ROT", "WSR", "RSW", "---",
 	"ADD", "SUB", "MUL", "DIV", "EQU", "NEQ", "GTH", "LTH"
diff --git a/emulator.c b/emulator.c
index f4f9797..596aa92 100644
--- a/emulator.c
+++ b/emulator.c
@@ -65,7 +65,7 @@ SDL_Texture *gTexture;
 Uint32 *pixels;
 
 Screen screen;
-Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller;
+Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devctrl;
 
 #pragma mark - Helpers
 
@@ -256,7 +256,7 @@ void
 domouse(Uxn *u, SDL_Event *event)
 {
 	Uint8 flag = 0x00;
-	Uint16 addr = 0xff50; /* TODO: get dynamically */
+	Uint16 addr = devmouse->addr;
 	Uint16 x = clamp(event->motion.x / ZOOM - PAD * 8, 0, HOR * 8 - 1);
 	Uint16 y = clamp(event->motion.y / ZOOM - PAD * 8, 0, VER * 8 - 1);
 	u->ram.dat[addr + 0] = (x >> 8) & 0xff;
@@ -283,16 +283,17 @@ domouse(Uxn *u, SDL_Event *event)
 }
 
 void
-dotext(SDL_Event *event)
+dotext(Uxn *u, SDL_Event *event)
 {
 	int i;
+	Uint16 addr = devkey->addr;
 	if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
 		return;
 	for(i = 0; i < SDL_TEXTINPUTEVENT_TEXT_SIZE; ++i) {
 		char c = event->text.text[i];
 		if(c < ' ' || c > '~')
 			break;
-		devkey->mem[0] = c;
+		u->ram.dat[addr] = c;
 	}
 }
 
@@ -300,8 +301,8 @@ void
 doctrl(Uxn *u, SDL_Event *event, int z)
 {
 	Uint8 flag = 0x00;
-	Uint16 addr = 0xff30; /* TODO: get dynamically */
-	if(z && event->key.keysym.sym == SDLK_h)
+	Uint16 addr = devctrl->addr;
+	if(z && event->key.keysym.sym == SDLK_h && SDL_GetModState() & KMOD_LCTRL)
 		GUIDES = !GUIDES;
 	if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
 		flag = 0x01;
@@ -310,11 +311,11 @@ doctrl(Uxn *u, SDL_Event *event, int z)
 	switch(event->key.keysym.sym) {
 	case SDLK_BACKSPACE:
 		flag = 0x04;
-		if(z) devkey->mem[0] = 0x08;
+		if(z) u->ram.dat[0xff40] = 0x08;
 		break;
 	case SDLK_RETURN:
 		flag = 0x08;
-		if(z) devkey->mem[0] = 0x0d;
+		if(z) u->ram.dat[0xff40] = 0x0d;
 		break;
 	case SDLK_UP: flag = 0x10; break;
 	case SDLK_DOWN: flag = 0x20; break;
@@ -378,44 +379,6 @@ ppnil(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1)
 	return b1;
 }
 
-Uint8
-defaultrw(Device *d, Memory *m, Uint8 b)
-{
-	(void)m;
-	return d->mem[b];
-}
-
-Uint8
-consolew(Device *d, Memory *m, Uint8 b)
-{
-	if(b)
-		printf("%c", b);
-	fflush(stdout);
-	(void)d;
-	(void)m;
-	return 0;
-}
-
-Uint8
-spritew(Device *d, Memory *m, Uint8 b)
-{
-	d->mem[d->ptr++] = b;
-	if(d->ptr == 7) {
-		Uint16 x = (d->mem[2] << 8) + d->mem[3];
-		Uint16 y = (d->mem[0] << 8) + d->mem[1];
-		Uint16 a = (d->mem[4] << 8) + d->mem[5];
-		Uint8 source = d->mem[6] >> 4 & 0xf;
-		Uint8 *layer = source % 2 ? screen.fg : screen.bg;
-		if(source / 2)
-			paintchr(layer, x, y, &m->dat[a]);
-		else
-			painticn(layer, x, y, &m->dat[a], d->mem[6] & 0xf);
-		screen.reqdraw = 1;
-		d->ptr = 0;
-	}
-	return 0;
-}
-
 #pragma mark - Generics
 
 int
@@ -432,14 +395,13 @@ start(Uxn *u)
 		if(tick < ticknext)
 			SDL_Delay(ticknext - tick);
 		ticknext = tick + (1000 / FPS);
-		devkey->mem[0] = 0x00; /* TODO: cleanup */
 		while(SDL_PollEvent(&event) != 0) {
 			switch(event.type) {
 			case SDL_QUIT: quit(); break;
 			case SDL_MOUSEBUTTONUP:
 			case SDL_MOUSEBUTTONDOWN:
 			case SDL_MOUSEMOTION: domouse(u, &event); break;
-			case SDL_TEXTINPUT: dotext(&event); break;
+			case SDL_TEXTINPUT: dotext(u, &event); break;
 			case SDL_KEYDOWN: doctrl(u, &event, 1); break;
 			case SDL_KEYUP: doctrl(u, &event, 0); break;
 			case SDL_WINDOWEVENT:
@@ -468,12 +430,12 @@ main(int argc, char **argv)
 	if(!init())
 		return error("Init", "Failed");
 
-	devconsole = portuxn(&u, "console", defaultrw, consolew, ppnil, console_poke);
-	devscreen = portuxn(&u, "screen", defaultrw, defaultrw, ppnil, screen_poke);
-	devsprite = portuxn(&u, "sprite", defaultrw, spritew, ppnil, sprite_poke);
-	devcontroller = portuxn(&u, "controller", defaultrw, defaultrw, ppnil, ppnil);
-	devkey = portuxn(&u, "key", defaultrw, consolew, ppnil, ppnil);
-	devmouse = portuxn(&u, "mouse", defaultrw, defaultrw, ppnil, ppnil);
+	devconsole = portuxn(&u, "console", ppnil, console_poke);
+	devscreen = portuxn(&u, "screen", ppnil, screen_poke);
+	devsprite = portuxn(&u, "sprite", ppnil, sprite_poke);
+	devctrl = portuxn(&u, "controller", ppnil, ppnil);
+	devkey = portuxn(&u, "key", ppnil, ppnil);
+	devmouse = portuxn(&u, "mouse", ppnil, ppnil);
 
 	u.ram.dat[0xff10] = (HOR * 8 >> 8) & 0xff;
 	u.ram.dat[0xff11] = HOR * 8 & 0xff;
diff --git a/examples/dev.ctrl.usm b/examples/dev.ctrl.usm
index 951e3ee..49cf176 100644
--- a/examples/dev.ctrl.usm
+++ b/examples/dev.ctrl.usm
@@ -1,4 +1,4 @@
-( controller )
+( dev/ctrl )
 
 &Screen     { width 2 height 2 pad 4 y 2 x 2 color 1 }
 &Sprite     { pad 8 x 2 y 2 addr 2 color 1 }
diff --git a/examples/dev.key.usm b/examples/dev.key.usm
new file mode 100644
index 0000000..67d540c
--- /dev/null
+++ b/examples/dev.key.usm
@@ -0,0 +1,134 @@
+( dev/key )
+
+&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
+&Sprite { pad 8 x 2 y 2 addr 2 color 1 }
+&Keyboard { key 1 }
+
+&Point2d { x 2 y 2 }
+&Rect2d { x1 2 y1 2 x2 2 y2 2 }
+
+;pos Point2d
+;rect Rect2d
+;color 1
+;textlen 2
+
+|0100 @RESET 
+
+	,redraw JSR
+
+BRK
+
+|c000 @FRAME
+
+	~dev/key #00 EQU ,key-end ROT JMP? POP2
+		( is backspace )
+		~dev/key #08 NEQ ,no-key-back ROT JMP? POP2
+			#00 ,body ~textlen ADD2 STR
+			~textlen #0001 SUB2 =textlen
+			,key-end JMP
+		@no-key-back
+
+		~textlen #0001 ADD2 =textlen
+		~dev/key ,body ~textlen ADD2 STR
+		,redraw JSR
+		#00 =dev/key ( release key )
+	@key-end
+
+BRK
+
+@redraw
+
+	#02 =color
+	#0040 #0040 #0090 #0090 ,fill-rect JSR
+	#06 =color
+	,body #0040 #0040 ,draw-label-multiline JSR
+
+RTS
+
+@draw-label-multiline ( text x1 y1 )
+	=pos.y =pos.x
+	@draw-label-multiline-loop
+		( draw ) DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 =dev/sprite.addr 
+		~pos.y =dev/sprite.y
+		~pos.x =dev/sprite.x
+		~color =dev/sprite.color
+		( incr ) #0001 ADD2
+		( incr ) ~pos.x #0008 ADD2 =pos.x
+
+		( detect linebreaks )
+		DUP2 LDR #0d NEQ ,no-return ROT JMP? POP2
+			#0048 =pos.x
+			~pos.y #0008 ADD2 =pos.y
+		@no-return
+
+		DUP2 LDR #00 NEQ ,draw-label-multiline-loop ROT JMP? POP2
+	POP2
+RTS
+
+@fill-rect ( x1 y1 x2 y2 )
+	=rect.y2 =rect.x2 ( stash x1 y1 ) =rect.y1 DUP2 WSR2 =rect.x1
+	@fill-rect-ver
+		RSW2 DUP2 =rect.x1 WSR2
+		~rect.y1 =dev/screen.y
+		@fill-rect-hor
+			( draw ) ~rect.x1 =dev/screen.x ~color =dev/screen.color
+			( incr ) ~rect.x1 #0001 ADD2 DUP2 =rect.x1  
+			~rect.x2 LTH2 ,fill-rect-hor ROT JMP? POP2
+		~rect.y1 #0001 ADD2 DUP2 =rect.y1
+		~rect.y2 LTH2 ,fill-rect-ver ROT JMP? POP2
+	RSW2 POP2
+RTS
+
+@draw-sprite
+	=dev/sprite.x
+	=dev/sprite.y
+	=dev/sprite.addr
+	=dev/sprite.color
+	RTS
+
+@font ( spectrum-zx font ) 
+[
+	0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
+	0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
+	007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
+	0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
+	0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
+	003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
+	0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
+	0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
+	0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
+	0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
+	0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
+	0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
+	003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
+	0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
+	003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
+	0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
+	003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
+	0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
+	0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
+	0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
+	007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
+	00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
+	0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
+	0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
+	0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
+	0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
+	0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
+	0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
+	0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
+	0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
+	0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
+	0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
+]
+
+@body          [  ]
+
+|d000 @ERROR BRK 
+
+|FF10 ;dev/screen Screen
+|FF20 ;dev/sprite Sprite
+|FF40 ;dev/key    Keyboard
+
+|FFF0 [ f0ff f00f f00f ] ( palette )
+|FFFA .RESET .FRAME .ERROR
diff --git a/examples/dev.mouse.usm b/examples/dev.mouse.usm
index b473e01..878f5a3 100644
--- a/examples/dev.mouse.usm
+++ b/examples/dev.mouse.usm
@@ -1,4 +1,4 @@
-( mouse )
+( dev/mouse )
 
 &Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
 &Sprite { pad 8 x 2 y 2 addr 2 color 1 }
diff --git a/examples/dev.screen.usm b/examples/dev.screen.usm
index 14fe7b1..15ed524 100644
--- a/examples/dev.screen.usm
+++ b/examples/dev.screen.usm
@@ -1,4 +1,4 @@
-( screen )
+( dev/screen )
 
 &Screen { width 2 height 2 pad 4 x 2 y 2 color 1 }
 
diff --git a/examples/devkey.usm b/examples/devkey.usm
deleted file mode 100644
index a1f46df..0000000
--- a/examples/devkey.usm
+++ /dev/null
@@ -1,233 +0,0 @@
-( mouse )
-
-:dev/r fff8 ( std read port )
-:dev/w fff9 ( std write port )
-
-&Point2d { x 2 y 2 }
-&Window2d { x1 2 y1 2 x2 2 y2 2 }
-
-;pos Point2d
-;mouse Point2d
-;scenter Point2d
-;win Window2d
-
-( drawing ) ;color 1 ;x1 2 ;x2 2 ;y1 2 ;y2 2 ;i 2
-;state 1 ;textlen 2
-
-|0100 @RESET 
-
-	#01 =dev/r ( read screen for size )
-	#02 =dev/w ( write to screen )
-
-	#08 =color
-	,paint-pattern JSR
-
-	#01 =dev/w ( write to screen )
-
-	#00 IOR2 #0002 DIV2 =scenter.x
-	#02 IOR2 #0002 DIV2 =scenter.y
-
-	~scenter.x #0050 SUB2 
-	~scenter.y #0030 SUB2 
-	~scenter.x #0050 ADD2 
-	~scenter.y #0030 ADD2 ,paint-window JSR
-
-	#05 =dev/r ( set dev/read mouse )
-	#02 =dev/w ( set dev/write to sprite ) 
-
-	#09 =color
-
-BRK
-
-|c000 @FRAME
-
-	( clear last cursor )
-	#10 ,clear_icn ~mouse.x ~mouse.y ,draw-sprite JSR
-	( record mouse positions )
-	#05 =dev/r ( set dev/read mouse )
-	#00 IOR2 =mouse.x 
-	#02 IOR2 =mouse.y
-	#11 =state
-
-	#04 IOR #01 NEQ ,no-touch ROT JMP? POP2
-		#13 =state
-	@no-touch
-
-	( clear window )
-
-	#04 =dev/r ( set dev/read mouse )
-	#00 IOR #00 EQU ,key-end ROT JMP? POP2
-
-		( is backspace )
-		#00 IOR #08 NEQ ,no-key-back ROT JMP? POP2
-			#00 ,body ~textlen ADD2 STR
-			~textlen #0001 SUB2 =textlen
-			,redraw-body-label JSR
-			,key-end JMP
-		@no-key-back
-
-		~textlen #0001 ADD2 =textlen
-		#00 IOR ,body ~textlen ADD2 STR
-		,redraw-body-label JSR
-	@key-end
-
-	( draw mouse )
-	~state ,cursor_icn ~mouse.x ~mouse.y ,draw-sprite JSR
-
-BRK
-
-@redraw-body-label
-
-	#02 =color
-	#01 =dev/w ( write to screen )
-	~win.x1 #0004 ADD2 ~win.y1 #0004 ADD2 ~win.x2 #0010 SUB2 ~win.y2 #0010 SUB2 ,fill-rect JSR
-	#02 =dev/w ( write to sprite )
-	#06 =color
-	,body ~win.x1 #0018 ADD2 ~scenter.y ,draw-label JSR
-
-RTS
-
-@paint-pattern ( nil )
-
-	#01 =dev/r ( read screen for size )
-	#02 =dev/w ( write to sprite )
-
-	#0000 
-	@paint-pattern-loop-hor
-	#0000
-	@paint-pattern-loop
-		( draw ) OVR2 IOW2 DUP2 IOW2 ,pattern IOW2 ~color IOW
-		( incr ) #0008 ADD2 DUP2
-		#00 IOR2 LTH2 ,paint-pattern-loop ROT JMP? POP2
-		POP2
-	( incr ) #0008 ADD2 DUP2
-	#02 IOR2 LTH2 ,paint-pattern-loop-hor ROT JMP? POP2
-	POP2
-
-RTS
-
-@paint-window ( name wx1 wy1 wx2 wy2 )
-
-	=win.y2 =win.x2 =win.y1 =win.x1
-
-	( Draw shadow )
-	#01 =color
-	~win.x2 ~win.y1 #0003 ADD2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
-	~win.x1 #0003 ADD2 ~win.y2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
-	( Fill background )
-	#02 =color
-	~win.x1 ~win.y1 ~win.x2 ~win.y2 ,fill-rect JSR
-	( draw outline )
-	#01 =color
-	~win.x1 ~win.y1 ~win.x2 ~win.y2 ,line-rect JSR
-	#01 =color
-	~win.x1 #0002 ADD2 ~win.y1 #0002 ADD2 ~win.x2 #0002 SUB2 ~win.y2 #0002 SUB2 ,line-rect JSR
-
-RTS
-
-@draw-label ( text x1 y1 )
-
-	=pos.y =pos.x
-	@draw-label-loop
-
-		( draw ) ~pos.x ~pos.y IOW2 IOW2 DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 IOW2 ~color IOW
-		( incr ) #0001 ADD2
-		( incr ) ~pos.x #0008 ADD2 =pos.x
-
-		( detect linebreaks )
-		DUP2 LDR #0d NEQ ,no-return ROT JMP? POP2
-			#0048 =pos.x
-		( incr ) ~pos.y #0008 ADD2 =pos.y
-		@no-return
-
-		DUP2 LDR #00 NEQ ,draw-label-loop ROT JMP? POP2
-	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
-
-@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
-
-@draw-sprite
-	IOW2 ( y byte )
-	IOW2 ( x byte )
-	IOW2 ( sprite address )
-	IOW ( layer-color )
-	RTS
-
-@pattern     [ 4281 1824 2418 8142 ]
-
-@clear_icn   [ 0000 0000 0000 0000 ]
-@cursor_icn  [ 80c0 e0f0 f8e0 1000 ]
-
-@mouse0_icn  [ 7c82 92ee 8282 4438 ]
-@mouse1_icn  [ 7cf2 f2ee 8282 4438 ]
-@mouse2_icn  [ 7c9e 9eee 8282 4438 ]
-@mouse12_icn [ 7cfe feee 8282 4438 ]
-
-@font ( spectrum-zx font ) 
-[
-	0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
-	0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
-	007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
-	0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
-	0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
-	003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
-	0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
-	0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
-	0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
-	0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
-	0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
-	0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
-	003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
-	0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
-	003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
-	0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
-	003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
-	0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
-	0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
-	0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
-	007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
-	00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
-	0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
-	0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
-	0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
-	0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
-	0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
-	0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
-	0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
-	0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
-	0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
-	0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
-]
-
-@body          [  ]
-
-|d000 @ERROR BRK 
-|FFF0 [ f0ff f00f f00f ] ( palette )
-|FFFA .RESET .FRAME .ERROR
diff --git a/uxn.c b/uxn.c
index 7690ea3..4ac62b7 100644
--- a/uxn.c
+++ b/uxn.c
@@ -34,8 +34,6 @@ Uint16 peek16(Stack *s, Uint8 a) { return peek8(s, a * 2) + (peek8(s, a * 2 + 1)
 void op_brk(Uxn *u) { setflag(&u->status, FLAG_HALT, 1); }
 void op_lit(Uxn *u) { u->literal += 1; }
 void op_nop(Uxn *u) { printf("0x%02x \n", pop8(&u->wst)); fflush(stdout); }
-void op_ior(Uxn *u) { Device *dev = &u->dev[mempeek8(u, u->devr)]; if(dev) push8(&u->wst, dev->read(dev, &u->ram, pop8(&u->wst))); }
-void op_iow(Uxn *u) { Uint8 a = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devw)]; if(dev) dev->write(dev, &u->ram, a); }
 void op_ldr(Uxn *u) { Uint16 a = pop16(&u->wst); push8(&u->wst, mempeek8(u, a)); }
 void op_str(Uxn *u) { Uint16 a = pop16(&u->wst); Uint8 b = pop8(&u->wst); mempoke8(u, a, b); }
 /* Logic */
@@ -66,8 +64,6 @@ void op_lth(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst,
 /* --- */
 void op_lit16(Uxn *u) { u->literal += 2; }
 void op_nop16(Uxn *u) { printf("%04x\n", pop16(&u->wst)); }
-void op_ior16(Uxn *u) { Uint8 a = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devr)]; if(dev) push16(&u->wst, (dev->read(dev, &u->ram, a) << 8) + dev->read(dev, &u->ram, a + 1)); }
-void op_iow16(Uxn *u) { Uint8 a = pop8(&u->wst); Uint8 b = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devw)]; if(dev) { dev->write(dev, &u->ram, b); dev->write(dev, &u->ram, a); } }
 void op_ldr16(Uxn *u) { Uint16 a = pop16(&u->wst); push16(&u->wst, mempeek16(u, a)); }
 void op_str16(Uxn *u) { Uint16 a = pop16(&u->wst); Uint16 b = pop16(&u->wst); mempoke16(u, a, b); }
 void op_and16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b & a); }
@@ -93,12 +89,12 @@ void op_gth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u-
 void op_lth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u->wst, getflag(&u->status, FLAG_SIGN) ? (Sint16)b < (Sint16)a : b < a); }
 
 void (*ops[])(Uxn *u) = {
-	op_brk, op_nop, op_lit, op_nop, op_ior, op_iow, op_ldr, op_str, 
+	op_brk, op_nop, op_lit, op_nop, op_nop, op_nop, op_ldr, op_str, 
 	op_jmp, op_jsr, op_nop, op_rts, op_and, op_ora, op_rol, op_ror, 
 	op_pop, op_dup, op_swp, op_ovr, op_rot, op_wsr, op_rsw, op_nop,
 	op_add, op_sub, op_mul, op_div, op_equ, op_neq, op_gth, op_lth,
 	/* 16-bit */
-	op_brk,   op_nop16, op_lit16, op_nop,   op_ior16, op_iow16, op_ldr16, op_str16, 
+	op_brk,   op_nop16, op_lit16, op_nop,   op_nop,   op_nop,   op_ldr16, op_str16, 
 	op_jmp,   op_jsr,   op_nop,   op_rts,   op_and16, op_ora16, op_rol16, op_ror16, 
 	op_pop16, op_dup16, op_swp16, op_ovr16, op_rot16, op_wsr16, op_rsw16, op_nop,
 	op_add16, op_sub16, op_mul16, op_div16, op_equ16, op_neq16, op_gth16, op_lth16
@@ -211,14 +207,12 @@ loaduxn(Uxn *u, char *filepath)
 }
 
 Device *
-portuxn(Uxn *u, char *name, Uint8 (*rfn)(Device *, Memory *, Uint8), Uint8 (*wfn)(Device *, Memory *, Uint8), Uint8 (*pefn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1), Uint8 (*pofn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1))
+portuxn(Uxn *u, char *name, Uint8 (*pefn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1), Uint8 (*pofn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1))
 {
 	Device *d = &u->dev[u->devices++];
-	d->read = rfn;
-	d->write = wfn;
+	d->addr = 0xff00 + (u->devices - 1) * 0x10;
 	d->peek = pefn;
 	d->poke = pofn;
-	d->ptr = 0;
-	printf("Device #%d: %s \n", u->devices - 1, name);
+	printf("Device #%d: %s, at 0x%04x \n", u->devices - 1, name, d->addr);
 	return d;
 }
diff --git a/uxn.h b/uxn.h
index e670e38..320ff37 100644
--- a/uxn.h
+++ b/uxn.h
@@ -32,9 +32,7 @@ typedef struct {
 } Memory;
 
 typedef struct Device {
-	Uint8 ptr, mem[8];
-	Uint8 (*read)(struct Device *, Memory *, Uint8);
-	Uint8 (*write)(struct Device *, Memory *, Uint8);
+	Uint16 addr;
 	Uint8 (*peek)(Uint8 *, Uint16, Uint8, Uint8);
 	Uint8 (*poke)(Uint8 *, Uint16, Uint8, Uint8);
 } Device;
@@ -44,7 +42,7 @@ typedef struct {
 	Uint16 counter, devr, devw, vreset, vframe, verror;
 	Stack wst, rst;
 	Memory ram;
-	Device dev[256];
+	Device dev[8];
 } Uxn;
 
 void setflag(Uint8 *status, char flag, int b);
@@ -52,4 +50,4 @@ int getflag(Uint8 *status, char flag);
 int loaduxn(Uxn *c, char *filepath);
 int bootuxn(Uxn *c);
 int evaluxn(Uxn *u, Uint16 vec);
-Device *portuxn(Uxn *u, char *name, Uint8 (*rfn)(Device *, Memory *, Uint8), Uint8 (*wfn)(Device *, Memory *, Uint8), Uint8 (*pefn)(Uint8 *, Uint16, Uint8, Uint8), Uint8 (*pofn)(Uint8 *, Uint16, Uint8, Uint8));
+Device *portuxn(Uxn *u, char *name, Uint8 (*pefn)(Uint8 *, Uint16, Uint8, Uint8), Uint8 (*pofn)(Uint8 *, Uint16, Uint8, Uint8));