(MESS) c64: Added support for the VizaStar cartridge. [Curt Coder]

mamedev · Feb 10, 2013 · ae95192 · ae95192
1 parent 11607bf
commit ae95192
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diff --git a/.gitattributes b/.gitattributes
@@ -6984,6 +6984,8 @@ src/mess/machine/c64_tdos.c svneol=native#text/plain
 src/mess/machine/c64_tdos.h svneol=native#text/plain
 src/mess/machine/c64_turbo232.c svneol=native#text/plain
 src/mess/machine/c64_turbo232.h svneol=native#text/plain
+src/mess/machine/c64_vizastar.c svneol=native#text/plain
+src/mess/machine/c64_vizastar.h svneol=native#text/plain
 src/mess/machine/c64_vw64.c svneol=native#text/plain
 src/mess/machine/c64_vw64.h svneol=native#text/plain
 src/mess/machine/c64_warp_speed.c svneol=native#text/plain

diff --git a/hash/c64_cart.xml b/hash/c64_cart.xml
@@ -6574,6 +6574,29 @@
 		</part>
 	</software>
 
+	<software name="vizastar">
+		<description>VizaStar XL4</description>
+		<year>1984</year>
+		<publisher>Viza</publisher>
+		<sharedfeat name="compatibility" value="NTSC,PAL"/>
+
+		<part name="cart" interface="c64_cart">
+			<feature name="slot" value="vizastar" />
+			<feature name="game" value="1" />
+			<feature name="exrom" value="0" />
+
+			<dataarea name="roml" size="0x1000">
+				<rom name="v" size="0x1000" crc="d17689a0" sha1="4df4d254d7fae916c473d421515b2b74d77e9fd9" offset="0" />
+			</dataarea>
+		</part>
+
+		<part name="flop1" interface="floppy_5_25">
+			<dataarea name="flop" size="350952">
+				<rom name="vizastar.g64" size="350952" crc="c4f327ac" sha1="c4d35b895f73d7133a72a5d7642e3a588df5370f" offset="0" />
+			</dataarea>
+		</part>
+	</software>
+
 	<!-- Dummy cartridge entries to allow requirement mappings from c64_flop -->
 
 	<software name="cpm">

diff --git a/src/mess/machine/c64_vizastar.c b/src/mess/machine/c64_vizastar.c
@@ -0,0 +1,90 @@
+/**********************************************************************
+
+    VizaWrite 64 cartridge emulation
+
+    Copyright MESS Team.
+    Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+/*
+
+    PCB Layout
+    ----------
+	RB84 (C) MICROPORT
+    |===========================|
+    |=|                         |
+    |=|                         |
+    |=|                         |
+    |=|                         |
+    |=|                   ROM   |
+    |=|                         |
+    |=|                         |
+    |=|                         |
+    |===========================|
+
+    ROM     - Hitachi HN462732G EPROM "V"
+
+*/
+
+#include "c64_vizastar.h"
+
+
+
+//**************************************************************************
+//  MACROS/CONSTANTS
+//**************************************************************************
+
+#define UNSCRAMBLE_ADDRESS(_offset) \
+	BITSWAP16(_offset,15,14,13,12,5,0,7,10,11,9,8,6,4,3,2,1)
+
+#define UNSCRAMBLE_DATA(_data) \
+	BITSWAP8(_data,7,6,0,5,1,4,2,3)
+
+
+
+//**************************************************************************
+//  DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_VIZASTAR = &device_creator<c64_vizastar_cartridge_device>;
+
+
+
+//**************************************************************************
+//  LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+//  c64_vizastar_cartridge_device - constructor
+//-------------------------------------------------
+
+c64_vizastar_cartridge_device::c64_vizastar_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+	device_t(mconfig, C64_VIZASTAR, "VizaStar 64", tag, owner, clock),
+	device_c64_expansion_card_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+//  device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_vizastar_cartridge_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+//  c64_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 c64_vizastar_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+	if (!roml)
+	{
+		data = UNSCRAMBLE_DATA(m_roml[UNSCRAMBLE_ADDRESS(offset & 0xfff)]);
+	}
+
+	return data;
+}
diff --git a/src/mess/machine/c64_vizastar.h b/src/mess/machine/c64_vizastar.h
@@ -0,0 +1,48 @@
+/**********************************************************************
+
+    VizaStar 64 cartridge emulation
+
+    Copyright MESS Team.
+    Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __VIZASTAR__
+#define __VIZASTAR__
+
+
+#include "emu.h"
+#include "machine/c64exp.h"
+
+
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> c64_vizastar_cartridge_device
+
+class c64_vizastar_cartridge_device : public device_t,
+										public device_c64_expansion_card_interface
+{
+public:
+	// construction/destruction
+	c64_vizastar_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+protected:
+	// device-level overrides
+	virtual void device_config_complete() { m_shortname = "c64_vizastar"; }
+	virtual void device_start();
+
+	// device_c64_expansion_card_interface overrides
+	virtual UINT8 c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2);
+};
+
+
+// device type definition
+extern const device_type C64_VIZASTAR;
+
+
+#endif
diff --git a/src/mess/machine/cbmipt.c b/src/mess/machine/cbmipt.c
@@ -1171,6 +1171,7 @@ SLOT_INTERFACE_START( c64_expansion_cards )
 	SLOT_INTERFACE_INTERNAL("sw8k", C64_SW8K)
 	SLOT_INTERFACE_INTERNAL("system3", C64_SYSTEM3)
 	SLOT_INTERFACE_INTERNAL("tdos", C64_TDOS)
+	SLOT_INTERFACE_INTERNAL("vizastar", C64_VIZASTAR)
 	SLOT_INTERFACE_INTERNAL("vizawrite", C64_VW64)
 	SLOT_INTERFACE_INTERNAL("warp_speed", C64_WARP_SPEED)
 	SLOT_INTERFACE_INTERNAL("westermann", C64_WESTERMANN)

diff --git a/src/mess/machine/cbmipt.h b/src/mess/machine/cbmipt.h
@@ -60,6 +60,7 @@
 #include "machine/c64_system3.h"
 #include "machine/c64_tdos.h"
 #include "machine/c64_turbo232.h"
+#include "machine/c64_vizastar.h"
 #include "machine/c64_vw64.h"
 #include "machine/c64_warp_speed.h"
 #include "machine/c64_westermann.h"

diff --git a/src/mess/mess.mak b/src/mess/mess.mak
@@ -896,6 +896,7 @@ $(MESSOBJ)/cbm.a:               \
 	$(MESS_MACHINE)/c64_system3.o   \
 	$(MESS_MACHINE)/c64_tdos.o  \
 	$(MESS_MACHINE)/c64_turbo232.o  \
+	$(MESS_MACHINE)/c64_vizastar.o  \
 	$(MESS_MACHINE)/c64_vw64.o  \
 	$(MESS_MACHINE)/c64_warp_speed.o    \
 	$(MESS_MACHINE)/c64_westermann.o    \