diff --git a/test/asm/test.sh b/test/asm/test.sh
index 5d85142f..0cbc38ea 100755
--- a/test/asm/test.sh
+++ b/test/asm/test.sh
@@ -1,11 +1,23 @@
 #!/bin/sh
-fname=$(mktemp)
+o=$(mktemp)
+gb=$(mktemp)
+before=$(mktemp)
+after=$(mktemp)
 rc=0
 
 for i in *.asm; do
-	../../rgbasm $i >$fname 2>&1
-	diff -u $fname ${i%.asm}.out
+	../../rgbasm -o $o $i > $after 2>&1
+	diff -u ${i%.asm}.out $after
 	rc=$(($? || $rc))
+	bin=${i%.asm}.out.bin
+	if [ -f $bin ]; then
+		../../rgblink -o $gb $o > $after 2>&1
+		head -c $(wc -c < $bin) $gb > $after 2>&1
+		hexdump -C $after > $before && mv $before $after
+		hexdump -C $bin > $before
+		diff -u $before $after
+		rc=$(($? || $rc))
+	fi
 done
 
 exit $rc
diff --git a/test/asm/utf-8.out.bin b/test/asm/utf-8.out.bin
new file mode 100644
index 00000000..4b04fff5
--- /dev/null
+++ b/test/asm/utf-8.out.bin
@@ -0,0 +1 @@
+é
\ No newline at end of file