From ee0469ad4a172698aa40c597654b73f542bfdd83 Mon Sep 17 00:00:00 2001
From: DavidHaywood <28625134+DavidHaywood@users.noreply.github.com>
Date: Thu, 3 May 2018 21:30:25 +0100
Subject: [PATCH] new NOT WORKING

---
 scripts/target/mame/arcade.lua |  1 +
 src/mame/drivers/y2.cpp        | 93 ++++++++++++++++++++++++++++++++++
 src/mame/mame.lst              |  3 ++
 3 files changed, 97 insertions(+)
 create mode 100644 src/mame/drivers/y2.cpp

diff --git a/scripts/target/mame/arcade.lua b/scripts/target/mame/arcade.lua
index 7337cd81adb..9f03c3711cd 100644
--- a/scripts/target/mame/arcade.lua
+++ b/scripts/target/mame/arcade.lua
@@ -3229,6 +3229,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/segasp.cpp",
 	MAME_DIR .. "src/mame/includes/segasp.h",
 	MAME_DIR .. "src/mame/machine/dc.cpp",
+	MAME_DIR .. "src/mame/drivers/y2.cpp",
 	MAME_DIR .. "src/mame/video/powervr2.cpp",
 	MAME_DIR .. "src/mame/video/powervr2.h",
 	MAME_DIR .. "src/mame/machine/naomi.cpp",
diff --git a/src/mame/drivers/y2.cpp b/src/mame/drivers/y2.cpp
new file mode 100644
index 00000000000..3164c42597e
--- /dev/null
+++ b/src/mame/drivers/y2.cpp
@@ -0,0 +1,93 @@
+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+/*
+
+System Board Y2
+
+'YATA-2 ASIC : 32-bit RISC processor @ 266 MHz'
+
+This SoC looks suspiciously like the ones used for some Dreamcast derivatives, suggesting that this too
+could be a DC / Naomi based platform, but with added encryption etc.
+
+The System Board Y2 was released by SI Electronics, LTD. in 2009, The hardware was developed after Kaga
+Electronics had acquired SI Electronics from Sega Sammy in 2008.  SI Electronics was also responsible
+for the Atomiswave manufacturing, again suggesting this could be DC based.
+
+The rest of the specs are quite close to DC / Naomi too.
+
+--
+
+ROMs are contained on a small sub-board
+
+*/
+
+#include "emu.h"
+#include "screen.h"
+#include "speaker.h"
+
+class system_board_y2_state : public driver_device
+{
+public:
+	system_board_y2_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+	{ }
+
+	virtual void video_start() override;
+	uint32_t screen_update_system_board_y2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+	void system_board_y2(machine_config &config);
+};
+
+void system_board_y2_state::video_start()
+{
+}
+
+uint32_t system_board_y2_state::screen_update_system_board_y2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	return 0;
+}
+
+static INPUT_PORTS_START( system_board_y2 )
+INPUT_PORTS_END
+
+
+MACHINE_CONFIG_START(system_board_y2_state::system_board_y2)
+	/*
+	MCFG_CPU_ADD("maincpu", SH4LE, 266666666)
+	MCFG_SH4_MD0(1)
+	MCFG_SH4_MD1(0)
+	MCFG_SH4_MD2(1)
+	MCFG_SH4_MD3(0)
+	MCFG_SH4_MD4(0)
+	MCFG_SH4_MD5(1)
+	MCFG_SH4_MD6(0)
+	MCFG_SH4_MD7(1)
+	MCFG_SH4_MD8(0)
+	MCFG_SH4_CLOCK(CPU_CLOCK)
+	*/
+
+	MCFG_SCREEN_ADD("screen", RASTER)
+	MCFG_SCREEN_REFRESH_RATE(60)
+	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+	MCFG_SCREEN_SIZE(640, 480)
+	MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
+	MCFG_SCREEN_UPDATE_DRIVER(system_board_y2_state, screen_update_system_board_y2)
+	MCFG_SCREEN_PALETTE("palette")
+
+	MCFG_PALETTE_ADD("palette", 0x1000)
+
+	MCFG_SPEAKER_STANDARD_MONO("mono")
+MACHINE_CONFIG_END
+
+ROM_START( kof2002um )
+	ROM_REGION( 0x8000000, "boot", 0 ) // presumably the boot code (encrypted?)
+	ROM_LOAD( "s29gl01gp11fcr2.u103", 0x0000000, 0x8000000, CRC(722cbad1) SHA1(0292be12255ee4bd586166a3f5cd108c5453295b) )
+	
+	ROM_REGION( 0x42000000, "nand_u101", 0 ) // presumably accessed like a filesystem (encrypted)
+	ROM_LOAD( "nand08gw3b2cn6.u101", 0x00000000, 0x42000000, CRC(ddeebb49) SHA1(6907205a0e0b69e2b37528f71647c70b4dd9e0f2) )
+	ROM_REGION( 0x42000000, "nand_u102", 0 )
+	ROM_LOAD( "nand08gw3b2cn6.u102", 0x00000000, 0x42000000, CRC(ac2dc586) SHA1(5168b4c0c6343b6c040a206da04fa7cdbc3b35b9) )
+ROM_END
+
+/* The title screen shows "The King of Fighters - Road to Revenge" (Chinese / English) while the speech on the title screen announcer says "The King of Fighters 2002 Unlimited Match"
+   There is a PS2 version with the Unlimited Match title screen, but unless it's used for a different region the arcade doesn't show that title, only announces it. */ 
+GAME( 2009, kof2002um,  0,    system_board_y2, system_board_y2,  system_board_y2_state, 0, ROT0, "SNK Playmore / New Channel", "The King of Fighters - Road to Revenge / The King of Fighters 2002 Unlimited Match", MACHINE_IS_SKELETON )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 929cbb4a8b0..ef7a6547084 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -39202,6 +39202,9 @@ xybotsg                         // 136054           (c) 1987
 @source:xyonix.cpp
 xyonix                          // [1989 Philko]
 
+@source:y2.cpp
+kof2002um                       // (c)2009 SNK Playmore / New Channel
+
 @source:yiear.cpp
 yiear                           // GX407 (c) 1985
 yiear2                          // GX407 (c) 1985