diff --git a/cli/icnuf1/816-original.icn b/cli/icnuf1/816-original.icn
new file mode 100644
index 0000000..6eb300a
Binary files /dev/null and b/cli/icnuf1/816-original.icn differ
diff --git a/cli/icnuf1/816.icn b/cli/icnuf1/816.icn
index 0417868..e96d44b 100644
Binary files a/cli/icnuf1/816.icn and b/cli/icnuf1/816.icn differ
diff --git a/cli/icnuf1/icnuf1.tal b/cli/icnuf1/icnuf1.tal
index 9691184..acc66f8 100644
--- a/cli/icnuf1/icnuf1.tal
+++ b/cli/icnuf1/icnuf1.tal
@@ -1,5 +1,6 @@
 ( uxncli format-c.rom file.bin )
 
+|00 @System &vector $2 &expansion $2 &wst $1 &rst $1 &metadata $2 &r $2 &g $2 &b $2 &debug $1 &state $1
 |10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
 |a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
 
@@ -24,28 +25,38 @@
 	STH2r .File/name DEO2
 	#0800 .File/length DEO2
 	;icn .File/read DEO2
-	( | convert )
+	( | write )
 	<convert>
+	;src .File/name DEO2
+	;uf1 .File/write DEO2
+	#0800 .File/length DEO2
 	#800f DEO
 	BRK
 
+@get-addr ( a -- addr* )
+	STHk
+	( y ) #04 SFT #00 SWP #0080 MUL2
+	( x ) STHr #0f AND #00 SWP #0008 MUL2 ADD2 JMP2r
+
 @<copy-tiles> ( a b -- )
 	OVR phex/b #2018 DEO
-	DUP phex/b #0a18 DEO
-	POP2
-JMP2r
+	DUP phex/b #2018 DEO
+	( a -> a* ) OVR get-addr phex #2018 DEO
+	( b -> b* ) DUP get-addr phex #0a18 DEO
+	SWP get-addr ;icn ADD2 ,&src STR2
+	get-addr ;uf1 ADD2 ,&dst STR2
+	;&cmd .System/expansion DEO2
+	JMP2r
+	&cmd [ 01 0008 0000 &src $2 0000 &dst $2 ]
 
 @<convert> ( -- )
 	#0000
 	&l ( -- )
-		( | print pos )
 		( y ) DUP #15 SFT OVR #01 AND ADD #40 SFT STH
 		( x ) DUP #01 SFT #0f AND
-		( merge ) STHr ORA 
-		OVR <copy-tiles>
+		( merge ) STHr ORA OVR <copy-tiles>
 		INC DUP ?&l
-	POP2
-JMP2r
+	POP2 JMP2r
 
 @blank [ ffff ffff ffff ffff ]
 
@@ -79,4 +90,3 @@ JMP2r
 
 @uf1 $800
 
-