Added clear canvas routine

projects/software/left.usm

@@ -713,4 +713,4 @@ RTN
 |FF60 ;File { pad 8 name 2 length 2 load 2 save 2 }
 
 |FFF0 .RESET .FRAME .ERROR ( vectors )
-|FFF8 [ 30ff e0f3 b0f3 ] ( palette )
+|FFF8 [ ed0f 3d0f 3d0f ]   ( palette )

projects/software/noodle.usm

@@ -11,7 +11,6 @@
 		- Only draw-canvas when mouse has changed
 		- Only draw-canvas target tile
 		- Resize buttons
-		- Clear all button
 		- Limit size
 		- Draw point inbetween
 		- Pixel cleanup brush
@@ -161,10 +160,12 @@ BRK
 	#00 NEQ ,draw-canvas ROT JSR2?
 	
 	,$no-keys ~Keys #00 EQU JMP2?
-		,$no-keys-toogle-zoom ~Keys #20 NEQ JMP2?
-			~zoom.active #00 EQU =zoom.active
-			,redraw JSR2
-		$no-keys-toogle-zoom 
+		~Keys 
+		DUP #20 NEQ ,$no-space ROT JMP2?
+			( toggle zoom ) ~zoom.active #00 EQU =zoom.active ,redraw JSR2 $no-space 
+		DUP #08 NEQ ,$no-backspace ROT JMP2?
+			( erase ) ,clear JSR2 $no-backspace
+		POP
 		( release ) #00 =Keys
 	$no-keys
 
@@ -173,6 +174,19 @@ BRK
 
 BRK
 
+@clear
+	
+	( from ) ,data
+	( to ) ~canvas.w ~canvas.h MUL2 #0008 MUL2 ,data ADD2
+	$loop NOP
+		OVR2 #00 ROT ROT STR
+		( incr ) SWP2 #0001 ADD2 SWP2
+		OVR2 OVR2 LTH2 ^$loop SWP JMP?
+	POP2 POP2
+	,redraw JSR2
+
+RTN
+
 @load-file ( path )
 
 	=File.name ~canvas.w ~canvas.h MUL2 #0008 MUL2 =File.length ,data =File.load