diff --git a/hash/c64_cart.xml b/hash/c64_cart.xml
index cabf30490f9..d8d940f9ae1 100644
--- a/hash/c64_cart.xml
+++ b/hash/c64_cart.xml
@@ -3218,14 +3218,12 @@ Fails detecting [VIC] collsion detection at the end of stage 2 "the tunnel of fe
 		</part>
 	</software>
 
-	<software name="pitfall2" supported="no">
+	<software name="pitfall2" supported="yes">
 		<description>Pitfall II: The Lost Caverns</description>
 		<year>1984</year>
 		<publisher>Activision</publisher>
-		<notes><![CDATA[
-Black screen, drives CPU port out of cart ROM during bootstrap at PC=8017
-]]></notes>
 		<info name="serial" value="DC-007-04" />
+		<info name="usage" value="Requires joystick in port 1" />
 		<part name="cart" interface="c64_cart">
 			<feature name="exrom" value="0" />
 			<feature name="game" value="0" />
diff --git a/src/devices/cpu/m6502/m4510.cpp b/src/devices/cpu/m6502/m4510.cpp
index 02fde4bf88c..4e6f97b56e4 100644
--- a/src/devices/cpu/m6502/m4510.cpp
+++ b/src/devices/cpu/m6502/m4510.cpp
@@ -73,9 +73,9 @@ void m4510_device::device_reset()
 	nomap = true;
 
 	m65ce02_device::device_reset();
-	dir = 0x00;
-	port = 0x00;
-	drive = 0x00;
+	dir = 0xff;
+	port = 0xff;
+	drive = 0xff;
 	update_port();
 }
 
diff --git a/src/devices/cpu/m6502/m6510.cpp b/src/devices/cpu/m6502/m6510.cpp
index fa9d36731c5..c54965a2f04 100644
--- a/src/devices/cpu/m6502/m6510.cpp
+++ b/src/devices/cpu/m6502/m6510.cpp
@@ -64,9 +64,9 @@ void m6510_device::device_start()
 void m6510_device::device_reset()
 {
 	m6502_device::device_reset();
-	dir = 0x00;
-	port = 0x00;
-	drive = 0x00;
+	dir = 0xff;
+	port = 0xff;
+	drive = 0xff;
 	update_port();
 }