New machines marked as NOT_WORKING

----------------------------------
Liberty Bell LB-4 [Al Kossow]

scripts/target/mame/mess.lua

@@ -3764,6 +3764,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/jade.cpp",
 	MAME_DIR .. "src/mame/drivers/jonos.cpp",
 	MAME_DIR .. "src/mame/drivers/kron.cpp",
+	MAME_DIR .. "src/mame/drivers/lb4.cpp",
 	MAME_DIR .. "src/mame/drivers/leapster.cpp",
 	MAME_DIR .. "src/mame/drivers/lee1214.cpp",
 	MAME_DIR .. "src/mame/drivers/learnwin.cpp",

src/mame/drivers/lb4.cpp

@@ -0,0 +1,102 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+/****************************************************************************
+
+    Liberty Electronics LB-4 serial terminal
+
+    Known hardware:
+    - Motorola 6800 CPU
+    - Hitachi HD46505 (Motorola 6845-compatible) CRTC
+    - Hitachi HD46850 (Motorola 6850-compatible) ACIA
+    - Zilog Z8430 CTC
+    - 16.6698MHz Crystal
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/m6800/m6800.h"
+#include "machine/6850acia.h"
+#include "machine/z80ctc.h"
+#include "video/mc6845.h"
+#include "screen.h"
+#include "emupal.h"
+
+#define MASTER_CLOCK	16.6698_MHz_XTAL
+
+class lb4_state : public driver_device
+{
+public:
+	lb4_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+		, m_maincpu(*this, "maincpu")
+		, m_acia(*this, "acia")
+		, m_ctc(*this, "ctc")
+		, m_crtc(*this, "crtc")
+		, m_gfxdecode(*this, "gfxdecode")
+		, m_palette(*this, "palette")
+	{ }
+
+	void lb4(machine_config &config);
+
+private:
+	void mem_map(address_map &map);
+
+	required_device<m6800_cpu_device> m_maincpu;
+	required_device<acia6850_device> m_acia;
+	required_device<z80ctc_device> m_ctc;
+	required_device<h46505_device> m_crtc;
+	required_device<gfxdecode_device> m_gfxdecode;
+	required_device<palette_device> m_palette;
+};
+
+
+void lb4_state::mem_map(address_map &map)
+{
+	map(0xe000, 0xffff).rom().region("maincpu", 0);
+}
+
+static const gfx_layout char_layout =
+{
+	8,16,
+	RGN_FRAC(1,1),
+	1,
+	{ 0 },
+	{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
+	8*16
+};
+
+static GFXDECODE_START(chars)
+	GFXDECODE_ENTRY("chars", 0, char_layout, 0, 1)
+GFXDECODE_END
+
+void lb4_state::lb4(machine_config &config)
+{
+	// All dividers unknown/guessed
+	M6800(config, m_maincpu, MASTER_CLOCK / 16);
+	m_maincpu->set_addrmap(AS_PROGRAM, &lb4_state::mem_map);
+
+	ACIA6850(config, m_acia, MASTER_CLOCK / 128);
+
+	Z80CTC(config, m_ctc, MASTER_CLOCK / 4);
+
+    H46505(config, m_crtc, MASTER_CLOCK);
+
+	GFXDECODE(config, m_gfxdecode, m_palette, chars);
+
+	PALETTE(config, m_palette, 2).set_init("palette", FUNC(palette_device::palette_init_monochrome));
+}
+
+static INPUT_PORTS_START( lb4 )
+INPUT_PORTS_END
+
+ROM_START( lb4 )
+	ROM_REGION( 0x10000, "maincpu", 0 )
+	ROM_LOAD( "u8.bin", 0xe000, 0x2000, CRC(2e375abc) SHA1(12ad1e49c5773c36c3a8d65845c9a50f9dec141f) )
+
+	ROM_REGION( 0x1000, "chars", 0 )
+	ROM_LOAD( "u32.bin", 0x0000, 0x1000, CRC(f6d86e87) SHA1(c0885e4a35095a730d760bf91a1cf4e8edd6a2bb) )
+ROM_END
+
+//    YEAR  NAME  PARENT  COMPAT  MACHINE  INPUT    CLASS      INIT        COMPANY                FULLNAME  FLAGS
+COMP( 197?, lb4,  0,      0,      lb4,     lb4,     lb4_state, empty_init, "Liberty Electronics", "LB-4",   MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )

src/mame/mame.lst

@@ -18028,6 +18028,9 @@ medlanes                        // [1977?]
 @source:lb186.cpp
 lb186                           // Ampro Little Board/186
 
+@source:lb4.cpp
+lb4                             // Liberty Electronics LB-4
+
 @source:lbeach.cpp
 lbeach                          // (c) 1979 Olympia / Seletron
 

src/mame/mess.flt

@@ -365,6 +365,7 @@ krz2000.cpp
 kyocera.cpp
 laser3k.cpp
 lb186.cpp
+lb4.cpp
 lc80.cpp
 lcmate2.cpp
 leapster.cpp