diff --git a/tcc/day9.tal b/tcc/day9.tal
new file mode 100644
index 0000000..15f8d06
--- /dev/null
+++ b/tcc/day9.tal
@@ -0,0 +1,177 @@
+|00 @System &vector $2 &pad $6 &r $2 &g $2 &b $2
+|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
+|90 @Mouse &vector $2 &x $2 &y $2 &state $1 &chord $1
+
+|0000
+
+	@f $2
+	@cursor &x $2 &y $2
+
+|0100
+
+	( theme )
+	#ff09 .System/r DEO2
+	#0fa6 .System/g DEO2
+	#0f25 .System/b DEO2
+	( size )
+	#0100 .Screen/width DEO2
+	#0080 .Screen/height DEO2
+	( animate )
+	#01 .Screen/auto DEO
+	;on-frame .Screen/vector DEO2
+	;on-mouse .Mouse/vector DEO2
+
+BRK
+
+(
+@|vectors )
+
+@on-mouse ( -> )
+
+	#40 ;draw-cursor JSR2
+
+	( draw new cursor )
+	.Mouse/x DEI2 .cursor/x STZ2
+	.Mouse/y DEI2 .cursor/y STZ2
+	;cursor-icn .Screen/addr DEO2
+	#41 .Mouse/state DEI #00 NEQ ADD ;draw-cursor JSR2
+
+	.Mouse/state DEI #00 NEQ JMP BRK
+
+	.Mouse/x DEI2 .Mouse/y DEI2 ;paint-pixel JSR2
+
+BRK
+
+@cursor-icn
+	80c0 e0f0 f8e0 1000
+
+@draw-cursor ( color -- )
+
+	#00 .Screen/auto DEO
+	.cursor/x LDZ2 .Screen/x DEO2
+	.cursor/y LDZ2 .Screen/y DEO2
+	.Screen/sprite DEO
+
+JMP2r
+
+@on-frame ( -> )
+
+	( paint pixels )
+	.f LDZ2k INC2 #007f AND2 ROT STZ2
+
+BRK
+
+(
+@|helpers )
+
+@get-pixel ( x* y* -- color )
+
+	( channel 1 )
+	OVR2 SWP2 ,get-pixel-addr JSR [ STH2k ] LDA
+	ROT ROT NIP #07 AND [ STHk ]
+	#07 SWP SUB SFT #01 AND
+	( channel 2 )
+	[ STHr ] [ STH2r ] #0008 ADD2 LDA SWP
+	#07 SWP SUB SFT #01 AND
+	DUP ADD
+	ADD
+
+JMP2r
+
+@get-pixel-addr ( x* y* -- addr* )
+
+	( get row )
+	DUP2 #0007 AND2
+	( get tile )
+	( width ) SWP2 #93 SFT2 ADD2
+	( height ) SWP2 #43 SFT2 ADD2
+	;texture ADD2
+
+JMP2r
+
+@put-pixel ( x* y* color -- )
+
+	STH
+	OVR2 SWP2 ,get-pixel-addr JSR
+	( ch1 ) OVR2 OVR2 STHkr #00 ,toggle-pixel JSR
+	( ch2 ) #0008 ADD2 STHr #01
+
+@toggle-pixel ( x* addr* color -- )
+
+	STH2
+	LDAk
+	STH SWP2 NIP
+	STHr SWP
+	STH2r SFT #01 AND ,&do-set JCN
+		( mask ) #0107 ROT #07 AND SUB #40 SFT SFT #ff EOR AND
+		( save ) ROT ROT STA
+		JMP2r
+	&do-set
+		( mask ) #0107 ROT #07 AND SUB #40 SFT SFT ORA
+		( save ) ROT ROT STA
+
+JMP2r
+
+@paint-pixel ( x* y* -- )
+
+	OVR2 OVR2 ;get-pixel JSR2 INC2 #03 AND ;put-pixel JSR2
+	;draw-texture JSR2
+
+JMP2r
+
+@draw-texture ( -- )
+
+	#05 .Screen/auto DEO
+	#0000 .Screen/y DEO2
+	;texture .Screen/addr DEO2
+	#1000 ( height )
+	&h
+		#0000 .Screen/x DEO2
+		#2000 ( width )
+		&w
+			#81 .Screen/sprite DEO
+			INC GTHk ,&w JCN
+		POP2
+		.Screen/y DEI2k #0008 ADD2 ROT DEO2
+		INC GTHk ,&h JCN
+	POP2
+
+JMP2r
+
+(
+@|assets )
+
+@print ( short* -- )
+
+	SWP ,&byte JSR
+	&byte ( byte -- ) DUP #04 SFT ,&char JSR
+	&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
+
+JMP2r
+
+@tile-icn
+	ffff ffff ffff ffff
+@circle-icn
+	030f 3f3f 7f7f ffff c0f0 fcfc fefe ffff
+	ffff 7f7f 3f3f 0f03 ffff fefe fcfc f0c0
+
+@cos ( cos256 )
+ffff ffff ffff fefe fdfc fcfb faf9 f8f7 
+f6f5 f3f2 f0ef edec eae8 e6e4 e2e0 dedc 
+dad8 d5d3 d1ce ccc9 c7c4 c1bf bcb9 b6b3 
+b0ae aba8 a5a2 9f9c 9895 928f 8c89 8683 
+807c 7976 7370 6d6a 6763 605d 5a57 5451 
+4f4c 4946 4340 3e3b 3836 3331 2e2c 2a27 
+2523 211f 1d1b 1917 1513 1210 0f0d 0c0a 
+0908 0706 0504 0303 0201 0100 0000 0000 
+0000 0000 0000 0101 0203 0304 0506 0708 
+090a 0c0d 0f10 1213 1517 191b 1d1f 2123 
+2527 2a2c 2e31 3336 383b 3e40 4346 494c 
+4f51 5457 5a5d 6063 676a 6d70 7376 797c 
+7f83 8689 8c8f 9295 989c 9fa2 a5a8 abae 
+b0b3 b6b9 bcbf c1c4 c7c9 ccce d1d3 d5d8 
+dadc dee0 e2e4 e6e8 eaec edef f0f2 f3f5 
+f6f7 f8f9 fafb fcfc fdfe feff ffff ffff
+
+@texture
+