New machines marked as NOT_WORKING

----------------------------------
Hazeltine 1420 Video Display Terminal

scripts/target/mame/mess.lua

@@ -3703,6 +3703,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/grfd2301.cpp",
 	MAME_DIR .. "src/mame/drivers/harriet.cpp",
 	MAME_DIR .. "src/mame/drivers/hazeltin.cpp",
+	MAME_DIR .. "src/mame/drivers/hazl1420.cpp",
 	MAME_DIR .. "src/mame/drivers/hprot1.cpp",
 	MAME_DIR .. "src/mame/drivers/hpz80unk.cpp",
 	MAME_DIR .. "src/mame/drivers/ht68k.cpp",

src/mame/drivers/hazl1420.cpp

@@ -0,0 +1,93 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/****************************************************************************
+
+    Skeleton driver for Hazeltine 1420 terminal.
+
+****************************************************************************/
+
+#include "emu.h"
+//#include "bus/rs232/rs232.h"
+#include "cpu/mcs48/mcs48.h"
+//#include "machine/i8243.h"
+//#include "machine/ins8250.h"
+//#include "video/dp8350.h"
+#include "screen.h"
+
+class hazl1420_state : public driver_device
+{
+public:
+	hazl1420_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+		, m_maincpu(*this, "maincpu")
+	{
+	}
+
+	void hazl1420(machine_config &config);
+
+protected:
+	virtual void machine_start() override;
+
+private:
+	void prog_map(address_map &map);
+	void io_map(address_map &map);
+
+	u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+	required_device<mcs48_cpu_device> m_maincpu;
+	//required_device_array<i8243_device, 2> m_ioexp;
+};
+
+void hazl1420_state::prog_map(address_map &map)
+{
+	map(0x000, 0x7ff).rom().region("maincpu", 0);
+	map(0x800, 0xfff).rom().region("maincpu_ea", 0x800);
+}
+
+void hazl1420_state::io_map(address_map &map)
+{
+}
+
+void hazl1420_state::machine_start()
+{
+}
+
+u32 hazl1420_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+	return 0;
+}
+
+static INPUT_PORTS_START(hazl1420)
+INPUT_PORTS_END
+
+void hazl1420_state::hazl1420(machine_config &config)
+{
+	I8049(config, m_maincpu, 11_MHz_XTAL);
+	m_maincpu->set_addrmap(AS_PROGRAM, &hazl1420_state::prog_map);
+	m_maincpu->set_addrmap(AS_IO, &hazl1420_state::io_map);
+
+	//I8243(config, m_ioexp[0]);
+	//I8243(config, m_ioexp[1]);
+
+	//INS8250(config, "ace", 1'843'200);
+
+	//DP8350(config, "crtc", 10.92_MHz_XTAL);
+
+	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+	screen.set_raw(10.92_MHz_XTAL, 700, 0, 560, 260, 0, 240);
+	screen.set_screen_update(FUNC(hazl1420_state::screen_update));
+}
+
+ROM_START(hazl1420)
+	ROM_REGION(0x0800, "maincpu", 0)
+	ROM_LOAD("8049h.u19", 0x0000, 0x0800, CRC(81beb6de) SHA1(f272d1277f100af92384a4c4cec2c9db9424b603))
+
+	ROM_REGION(0x1000, "maincpu_ea", 0)
+	ROM_LOAD("2716.u10", 0x0000, 0x0800, CRC(7c40ba24) SHA1(7575225adf1a06d66b079efcf0f4f9ee77fbddd4))
+	ROM_LOAD("8316.u11", 0x0800, 0x0800, CRC(1c112f09) SHA1(fa4973e99c6d66809cffef009c4869787089a774))
+
+	ROM_REGION(0x0800, "chargen", 0)
+	ROM_LOAD("8316.u23", 0x0000, 0x0800, NO_DUMP)
+ROM_END
+
+COMP(1979, hazl1420, 0, 0, hazl1420, hazl1420, hazl1420_state, empty_init, "Hazeltine", "1420 Video Display Terminal", MACHINE_IS_SKELETON)

src/mame/mame.lst

@@ -14825,6 +14825,9 @@ hg_frd                          // Fruit Deuce
 @source:hazeltin.cpp
 hazl1500                        // Hazeltine 1500 (c) 1977
 
+@source:hazl1420.cpp
+hazl1420                        // Hazeltine 1420 (c) 1979
+
 @source:hcastle.cpp
 akumajou                        // GX768 (c) 1988 (Japan)
 akumajoun                       // GX768 (c) 1988 (Japan)

src/mame/mess.flt

@@ -267,6 +267,7 @@ h8.cpp
 h89.cpp
 harriet.cpp
 hazeltin.cpp
+hazl1420.cpp
 hec2hrp.cpp
 hh_amis2k.cpp
 hh_cop400.cpp