New games added as MACHINE_NOT_WORKING

--------------------------------------
Unknown medal game GS471 [Phil Bennett, R. Belmont]

scripts/target/mame/arcade.lua

@@ -2540,6 +2540,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/konblands.cpp",
 	MAME_DIR .. "src/mame/drivers/kongs470.cpp",
 	MAME_DIR .. "src/mame/drivers/konmedal.cpp",
+	MAME_DIR .. "src/mame/drivers/konmedal_020.cpp",
 	MAME_DIR .. "src/mame/drivers/konmedal68k.cpp",
 	MAME_DIR .. "src/mame/drivers/kontest.cpp",
 	MAME_DIR .. "src/mame/drivers/konendev.cpp",

src/mame/drivers/konmedal020.cpp

@@ -0,0 +1,124 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/***************************************************************************
+
+    konmedal020.cpp: Konami 68EC020/VGA based medal games
+
+    Mighty Joker?
+    GS471
+    (c) 1997 Konami
+
+    Major ICs:
+    MC68EC020-25 CPU
+    YMZ280B sound
+    16552 serial UART
+    Oak OTI64111 "Spitfire" Super VGA video
+    K056879 input/EEPROM interface
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/m68000/m68000.h"
+#include "machine/eepromser.h"
+#include "machine/gen_latch.h"
+#include "machine/nvram.h"
+#include "machine/timer.h"
+#include "sound/ymz280b.h"
+#include "video/pc_vga.h"
+#include "emupal.h"
+#include "screen.h"
+#include "speaker.h"
+
+namespace {
+
+class konmedal020_state : public driver_device
+{
+public:
+	konmedal020_state(const machine_config &mconfig, device_type type, const char *tag) :
+		driver_device(mconfig, type, tag),
+		m_maincpu(*this, "maincpu"),
+		m_vga(*this, "vga"),
+		m_ymz(*this, "ymz")
+	{ }
+
+	void gs471(machine_config &config);
+
+protected:
+	virtual void machine_start() override;
+	virtual void machine_reset() override;
+	virtual void video_start() override;
+
+	required_device<cpu_device> m_maincpu;
+	required_device<vga_device> m_vga;
+	required_device<ymz280b_device> m_ymz;
+
+private:
+	void gs471_main(address_map &map);
+};
+
+void konmedal020_state::video_start()
+{
+}
+
+void konmedal020_state::gs471_main(address_map &map)
+{
+	map(0x000000, 0x1fffff).rom().region("maincpu", 0);
+	map(0x200000, 0x23ffff).ram();
+	// Watchdog and system control at 0x380000
+	map(0x3e0000, 0x3e1fff).ram();  // NVRAM?
+	map(0x800000, 0x8fffff).ram();  // VGA VRAM, probably
+	map(0xf003b0, 0xf003bf).rw(m_vga, FUNC(vga_device::port_03b0_r), FUNC(vga_device::port_03b0_w));
+	map(0xf003c0, 0xf003cf).rw(m_vga, FUNC(vga_device::port_03c0_r), FUNC(vga_device::port_03c0_w));
+	map(0xf003d0, 0xf003df).rw(m_vga, FUNC(vga_device::port_03d0_r), FUNC(vga_device::port_03d0_w));
+}
+
+static INPUT_PORTS_START( gs471 )
+INPUT_PORTS_END
+
+
+void konmedal020_state::machine_start()
+{
+}
+
+void konmedal020_state::machine_reset()
+{
+}
+
+void konmedal020_state::gs471(machine_config &config)
+{
+	/* basic machine hardware */
+	M68EC020(config, m_maincpu, XTAL(25'000'000));
+	m_maincpu->set_addrmap(AS_PROGRAM, &konmedal020_state::gs471_main);
+	//NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
+
+	/* video hardware */
+	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+	screen.set_raw(25.175_MHz_XTAL, 800, 0, 640, 524, 0, 480);
+	screen.set_screen_update(m_vga, FUNC(vga_device::screen_update));
+
+	VGA(config, m_vga, 0).set_screen("screen");
+
+	/* sound hardware */
+	SPEAKER(config, "lspeaker").front_left();
+	SPEAKER(config, "rspeaker").front_right();
+
+	YMZ280B(config, m_ymz, XTAL(16'934'400)); // 16.9344 MHz xtal verified on PCB
+	m_ymz->add_route(0, "lspeaker", 0.75);
+	m_ymz->add_route(1, "rspeaker", 0.75);
+}
+
+ROM_START( gs471 )
+	ROM_REGION( 0x200000, "maincpu", 0 ) /* main program */
+	ROM_LOAD32_WORD_SWAP("471-b04.15t", 0x000000, 0x080000, CRC(78f071b1) SHA1(4dac30917ea903e0fe803a988351992a30de668a))
+	ROM_LOAD32_WORD_SWAP("471-b05.17t-2", 0x000002, 0x080000, CRC(45b1febf) SHA1(b504153631d11f7a9ebfb47fea6b09ce10b95654))
+	ROM_LOAD32_WORD_SWAP("471-b06.20t", 0x100000, 0x080000, CRC(7bc5f090) SHA1(f25095883c1b747fd7971c8841000ef33878081d))
+	ROM_LOAD32_WORD_SWAP("471-b07.22t", 0x100002, 0x080000, CRC(7d9153b5) SHA1(cebfbd1531e479b27ae8f176a47d928be9cfab88))
+
+	ROM_REGION( 0x100000, "ymz", 0 )
+	ROM_LOAD("471-b01.15l", 0x000000, 0x080000, CRC(064c4830) SHA1(a4051a16d7bed7a5aab0dafc570b9bc0ddb0fac5))
+	ROM_LOAD("471-b02.18l", 0x080000, 0x080000, CRC(4a3f6c74) SHA1(d631d988a3334de0a4d13bd2b1bfa2133da7507e))
+ROM_END
+
+} // Anonymous namespace
+
+GAME( 1997, gs471,  0, gs471,  gs471, konmedal020_state, empty_init, ROT0, "Konami", "Unknown medal game GS471", MACHINE_NOT_WORKING )

src/mame/mame.lst

@@ -19429,6 +19429,9 @@ tsukande
 tsupenta
 tsururin
 
+@source:konmedal020.cpp
+gs471
+
 @source:konmedal68k.cpp
 crossmg2
 dobouchn