diff --git a/hash/pet_flop.xml b/hash/pet_flop.xml
index d989f21e63c..b51cee5563c 100644
--- a/hash/pet_flop.xml
+++ b/hash/pet_flop.xml
@@ -48,7 +48,46 @@
 		-->
 		<part name="flop1" interface="floppy_5_25">
 			<dataarea name="flop" size="174848">
-				<rom name="visicalc.d64" size="174848" crc="b41f3121" sha1="aad1254ca95f03430edd63997d995c3671bc6c55" offset="0" />
+				<rom name="20910-5511.d64" size="174848" crc="b41f3121" sha1="aad1254ca95f03430edd63997d995c3671bc6c55" offset="0" />
+			</dataarea>
+		</part>
+
+		<part name="rom" interface="pet_9000_rom">
+			<dataarea name="rom" size="0x1000">
+				<rom name="901472-04.bin" size="0x1000" crc="9bf3c9f8" sha1="62be6bcf3a3aa844d629e8a52b30e01864cc8266" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+
+	<software name="visicalc80" cloneof="visicalc">
+		<description>VisiCalc (8050 Version)</description>
+		<year>1981</year>
+		<publisher>Software Arts</publisher>
+		<info name="serial" value="20910-5612" />
+
+		<!--
+		VisiCalc(R)                                                 PET 2001, CBM 2001
+		Program Diskette                                         CBM 8032 and CBM 8096
+		                              [VisiCorp logo]          for 8050 Diskette Drive
+		One of the VisiTM programs                              by Software Arts, Inc.
+		from VisiCorp
+
+		                                VisiCorpTM
+		                            PERSONAL SOFTWARETM
+
+		Program Copyright (C) 1979, 1982
+		Software Arts, Inc. All Rights Reserved
+		                                                                    20910-5612
+		-->
+		<part name="flop1" interface="floppy_5_25">
+			<dataarea name="flop" size="533248">
+				<rom name="20910-5612.d80" size="533248" crc="9e0ab13f" sha1="27e6e95efbbbec00e07003a8322e9cd2cea736ad" offset="0" />
+			</dataarea>
+		</part>
+
+		<part name="rom" interface="pet_9000_rom">
+			<dataarea name="rom" size="0x1000">
+				<rom name="901472-04.bin" size="0x1000" crc="9bf3c9f8" sha1="62be6bcf3a3aa844d629e8a52b30e01864cc8266" offset="0" />
 			</dataarea>
 		</part>
 	</software>
diff --git a/hash/pet_rom.xml b/hash/pet_rom.xml
index 3e29bba3622..43943ee9065 100644
--- a/hash/pet_rom.xml
+++ b/hash/pet_rom.xml
@@ -188,18 +188,6 @@
 		</part>
 	</software>
 
-	<software name="visicalc">
-		<description>VisiCalc</description>
-		<year>198?</year>
-		<publisher>&lt;unknown&gt;</publisher>
-
-		<part name="rom" interface="pet_9000_rom">
-			<dataarea name="rom" size="0x1000">
-				<rom name="visicalc-9000.901472-04.bin" size="0x1000" crc="9bf3c9f8" sha1="62be6bcf3a3aa844d629e8a52b30e01864cc8266" offset="0" />
-			</dataarea>
-		</part>
-	</software>
-
 	<software name="wordcrft">
 		<description>Wordcraft</description>
 		<year>198?</year>
diff --git a/src/mess/drivers/pet.c b/src/mess/drivers/pet.c
index a741c662f43..1e9d1c9fc58 100644
--- a/src/mess/drivers/pet.c
+++ b/src/mess/drivers/pet.c
@@ -1759,9 +1759,18 @@ static MACHINE_CONFIG_START( pet80, pet80_state )
 	MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, user_intf, pet_user_port_cards, NULL)
 	MCFG_QUICKLOAD_ADD("quickload", pet_state, cbm_pet, "p00,prg", CBM_QUICKLOAD_DELAY_SECONDS)
 
+	MCFG_CARTSLOT_ADD("9000")
+	MCFG_CARTSLOT_EXTENSION_LIST("bin,rom")
+	MCFG_CARTSLOT_INTERFACE("pet_9000_rom")
+
+	MCFG_CARTSLOT_ADD("a000")
+	MCFG_CARTSLOT_EXTENSION_LIST("bin,rom")
+	MCFG_CARTSLOT_INTERFACE("pet_a000_rom")
+
 	// software lists
 	MCFG_SOFTWARE_LIST_ADD("cass_list", "pet_cass")
 	MCFG_SOFTWARE_LIST_ADD("flop_list", "pet_flop")
+	MCFG_SOFTWARE_LIST_ADD("rom_list", "pet_rom")
 MACHINE_CONFIG_END