New NOT_WORKING machine (#8122)

* New NOT_WORKING machine
----------------------
Super Chexx (EM Bubble Hockey) [ClawGrip]

scripts/target/mame/arcade.lua

@@ -5091,6 +5091,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/savquest.cpp",
 	MAME_DIR .. "src/mame/drivers/sanremo.cpp",
 	MAME_DIR .. "src/mame/drivers/sanremmg.cpp",
+	MAME_DIR .. "src/mame/drivers/schexx4gen.cpp",
 	MAME_DIR .. "src/mame/drivers/scm_500.cpp",
 	MAME_DIR .. "src/mame/drivers/sealy.cpp",
 	MAME_DIR .. "src/mame/drivers/sealy_fr.cpp",

src/mame/arcade.flt

@@ -1095,6 +1095,7 @@ sbmjb.cpp
 sbowling.cpp
 sbrkout.cpp
 sbugger.cpp
+schexx4gen.cpp
 schick.cpp
 scm_500.cpp
 scobra.cpp

src/mame/drivers/schexx4gen.cpp

@@ -0,0 +1,46 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/****************************************************************************
+
+    Skeleton driver for 4th Generation "Super Chexx" bubble jockey
+    electromechanical machines
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/mc68hc11/mc68hc11.h"
+
+namespace {
+
+class schexx_state : public driver_device
+{
+
+public:
+	schexx_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+		, m_maincpu(*this, "maincpu")
+	{
+	}
+
+	void schexx(machine_config &config);
+
+private:
+	required_device<mc68hc11_cpu_device> m_maincpu;
+};
+
+INPUT_PORTS_START(schexx)
+INPUT_PORTS_END
+
+void schexx_state::schexx(machine_config &config)
+{
+	MC68HC11A1(config, m_maincpu, 8_MHz_XTAL);
+}
+
+ROM_START(schexx)
+	ROM_REGION(0x80000, "program", 0)
+	ROM_LOAD("schexx1_2_040.u4", 0x0000, 0x80000, CRC(8cbb7172) SHA1(ba59f7d8dd7e08c837181e18ce15e3c976f8f00b))
+ROM_END
+
+} // Anonymous namespace
+
+GAME(1996, schexx, 0, schexx, schexx, schexx_state, empty_init, ROT0, "ICE", "Super Chexx (EM Bubble Hockey)", MACHINE_IS_SKELETON_MECHANICAL)

src/mame/mame.lst

@@ -36803,6 +36803,9 @@ sc2a                            //
 @source:schick.cpp
 schick                          // Microhard
 
+@source:schexx4gen.cpp
+schexx                          // (c) 1996 ICE
+
 @source:scm_500.cpp
 scm_500                         //