diff --git a/disassem.pl b/disassem.pl
index 6e0984e..736bbc7 100755
--- a/disassem.pl
+++ b/disassem.pl
@@ -77,12 +77,12 @@ $output = 0;
 	0x01 => "PDR1",
 	0x02 => "PDR2",
 	0x03 => "PDR3",
-	0x04 => "PDR3",
-	0x05 => "PDR3",
-	0x06 => "PDR3",
-	0x07 => "PDR3",
-	0x08 => "PDR3",
-	0x09 => "PDR3",
+	0x04 => "PDR4",
+	0x05 => "PDR5",
+	0x06 => "PDR6",
+	0x07 => "PDR7",
+	0x08 => "PDR8",
+	0x09 => "PDR9",
 	0x0A => "PDRA",
 	0x11 => "DDR1",
 	0x12 => "DDR2",