tvgames/xavix_2000.cpp: Add preliminary support for Duel Masters: Duel Station (#12639)

* new NOT WORKING machines
---------------------------------------
Duel Masters: Duel Station (Japan) [David Haywood, Team Europe]

---------

Co-authored-by: DavidHaywood <hazemamewip@hotmail.com>

src/mame/mame.lst

@@ -45643,6 +45643,7 @@ domfitad                        //
 dombikec                        //
 
 @source:tvgames/xavix_2000.cpp
+duelmast                        //
 epo_ebox                        //
 epo_bowl                        //
 epo_sdb                         //

src/mame/tvgames/xavix.h

@@ -1000,5 +1000,16 @@ protected:
 
 };
 
+class xavix_duelmast_state : public xavix_i2c_state
+{
+public:
+	xavix_duelmast_state(const machine_config &mconfig, device_type type, const char *tag)
+		: xavix_i2c_state(mconfig, type, tag)
+	{ }
+
+protected:
+	virtual uint8_t read_io1(uint8_t direction) override;
+};
+
 
 #endif // MAME_TVGAMES_XAVIX_H

src/mame/tvgames/xavix_2000.cpp

@@ -140,6 +140,23 @@ static INPUT_PORTS_START( epo_bowl )
 	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("i2cmem", i2cmem_device, read_sda)
 INPUT_PORTS_END
 
+static INPUT_PORTS_START( duelmast )
+	PORT_INCLUDE(xavix)
+
+	PORT_MODIFY("IN0")
+	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
+	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)
+	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1)
+
+	PORT_MODIFY("IN1")
+	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("i2cmem", i2cmem_device, read_sda)
+INPUT_PORTS_END
+
+
 static INPUT_PORTS_START( epo_sdb )
 	PORT_INCLUDE(xavix)
 
@@ -274,11 +291,22 @@ ROM_START( ban_onep )
 	ROM_LOAD("onepiece.bin", 0x000000, 0x800000, CRC(c5cb5a5f) SHA1(db85f6cc48d77c5a4967b9b8e2999167e3dfc8c8) )
 ROM_END
 
+ROM_START( duelmast )
+	ROM_REGION(0x200000, "bios", ROMREGION_ERASE00)
+	ROM_LOAD("duelmasters.u4", 0x000000, 0x200000, CRC(2f11fcd7) SHA1(d8849c74833e77b8b309e845523f2cdc7ac68054) )
+ROM_END
+
+
 // doesn't use extra opcodes?
 CONS( 2002, epo_ebox, 0, 0, xavix2000_nv,        epo_ebox,    xavix_state,             init_xavix, "Epoch / SSD Company LTD",       "Excite Boxing (Japan)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) // doesn't use XaviX2000 extra opcodes, but had that type of CPU
  // die not confirmed, but uses extra opcodes.  (hangs on title screen due to combination of freq_timer_done nested interrupts tripping, and waiting on bits in input ports to change
 CONS( 2002, epo_bowl, 0, 0, xavix2000_i2c_24c04, epo_bowl,    xavix_i2c_state,         init_xavix, "Epoch / SSD Company LTD",       "Excite Bowling (Japan)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
 
+// takes a long time to boot to a card scanner error
+// This is a product in the Duel Masters line called Duel Station; the boot up screen calls it Duel Station, title logo is Duel Masters
+// It also has a cartridge slot in addition to the card scanner and at least 1 ROM cartridge was produced "デュエルマスターズ　デュエルステーション専用カートリッジ　Ver.1"
+CONS( 2003, duelmast, 0, 0, xavix2000_i2c_24c04, duelmast,    xavix_duelmast_state,    init_xavix, "Takara / SSD Company LTD",      "Duel Masters: Duel Station (Japan)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
+
 CONS( 2004, epo_sdb,  0, 0, xavix2000_nv_sdb,    epo_sdb,     xavix_2000_nv_sdb_state, init_xavix, "Epoch / SSD Company LTD",       "Super Dash Ball (Japan)",  MACHINE_IMPERFECT_SOUND )
 
 CONS( 2005, ttv_sw,   0, 0, xavix2000_i2c_24c02, ttv_lotr,    xavix_i2c_lotr_state,    init_xavix, "Tiger / SSD Company LTD",       "Star Wars Saga Edition - Lightsaber Battle Game", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )

src/mame/tvgames/xavix_m.cpp

@@ -453,6 +453,35 @@ uint8_t xavix_state::read_io1(uint8_t direction)
 	return m_in1->read();
 }
 
+uint8_t xavix_duelmast_state::read_io1(uint8_t direction)
+{
+	int pc = m_maincpu->pc();
+
+	// hacks to get it to boot.  It will still spin for a long time on a black
+	// screen before giving a card scanner error, you can bypass that with button 1
+	// but the game isn't playable
+
+	if (pc == 0x3c01)
+		return 0x00;
+
+	if (pc == 0x3c06)
+		return 0x02;
+
+	if (pc == 0x3c14)
+		return 0x04;
+
+	if (pc == 0x3c19)
+		return 0x00;
+
+	if (pc == 0x3c25)
+		return 0x04;
+
+	if (pc == 0x3c2a)
+		return 0x00;
+
+	return m_in1->read();
+}
+
 void xavix_state::write_io0(uint8_t data, uint8_t direction)
 {
 	// no special handling