New machines marked as NOT_WORKING

----------------------------------
ACT Apricot XEN [John Elliott]

scripts/target/mame/mess.lua

@@ -1676,6 +1676,7 @@ files {
 	MAME_DIR .. "src/mame/drivers/apricot.cpp",
 	MAME_DIR .. "src/mame/drivers/apricotf.cpp",
 	MAME_DIR .. "src/mame/drivers/apricotp.cpp",
+	MAME_DIR .. "src/mame/drivers/apxen.cpp",
 	MAME_DIR .. "src/mame/machine/apricotkb.cpp",
 	MAME_DIR .. "src/mame/machine/apricotkb.h",
 	MAME_DIR .. "src/mame/drivers/victor9k.cpp",

src/mame/drivers/apxen.cpp

@@ -0,0 +1,214 @@
+// license: BSD-3-Clause
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+    ACT Apricot XEN
+
+    Codename "Candyfloss". The system is not IBM compatible but can run
+    MS-DOS (and Windows) as well as Xenix.
+
+    Models:
+    - XEN FD (512 KB RAM, 2x 720 KB floppy)
+    - XEN HD (1 MB RAM, 1x 720 KB or 1.2 MB floppy, 20M HDD)
+    - XEN WS (1 MB RAM, no drives)
+
+    TODO:
+    - Everything
+
+    Notes:
+    - Two graphics cards: Mono and colour boards
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/i86/i286.h"
+#include "machine/pic8259.h"
+#include "machine/wd_fdc.h"
+#include "machine/z80sio.h"
+#include "video/mc6845.h"
+#include "imagedev/floppy.h"
+#include "formats/apridisk.h"
+#include "emupal.h"
+#include "screen.h"
+
+
+namespace {
+
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+class apxen_state : public driver_device
+{
+public:
+	apxen_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag),
+		m_maincpu(*this, "maincpu"),
+		m_pic(*this, "pic%u", 0U),
+		m_crtc(*this, "crtc"),
+		m_mono_palette(*this, "mono_palette")
+	{ }
+
+	void apxen(machine_config &config);
+
+protected:
+	virtual void machine_start() override;
+	virtual void machine_reset() override;
+
+private:
+	required_device<i80286_cpu_device> m_maincpu;
+	required_device_array<pic8259_device, 2> m_pic;
+	required_device<hd6845s_device> m_crtc;
+	required_device<palette_device> m_mono_palette;
+
+	void mem_map(address_map &map);
+	void io_map(address_map &map);
+
+	uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+	MC6845_UPDATE_ROW(crtc_update_row);
+
+	uint8_t get_slave_ack(offs_t offset);
+};
+
+
+//**************************************************************************
+//  ADDRESS MAPS
+//**************************************************************************
+
+void apxen_state::mem_map(address_map &map)
+{
+	map(0x000000, 0x07ffff).ram();
+	map(0x0f0000, 0x0fffff).rom().region("bios", 0);
+	map(0xff0000, 0xffffff).rom().region("bios", 0);
+}
+
+void apxen_state::io_map(address_map &map)
+{
+	map(0x068, 0x068).w(m_crtc, FUNC(hd6845s_device::address_w));
+	map(0x06a, 0x06a).rw(m_crtc, FUNC(hd6845s_device::register_r), FUNC(hd6845s_device::register_w));
+//  map(0xc00, 0xc00) leds
+//  map(0xc20, 0xc20) printer
+//  map(0xc30, 0xc31) SN76489
+//  map(0xc40, 0xc47) CIO
+//  map(0xc50, 0xc57) SIO
+//  map(0xc60, 0xc6f) MM5827 RTC
+//  map(0xc80, 0xc87) FDC
+//  map(0xc90, 0xc93) uPD7261 HDC
+	map(0xca0, 0xca3).rw(m_pic[0], FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0x00ff);
+	map(0xca4, 0xca7).rw(m_pic[1], FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0x00ff);
+//  map(0xcb0, 0xcb7) PIT
+//  map(0xcc0, 0xccd) uPD71071 DMA 1
+//  map(0xcd0, 0xcdd) uPD71071 DMA 2
+//  map(0xce0, 0xce0) cpu control
+//  map(0xcf0, 0xcf0) cpu reset
+}
+
+
+//**************************************************************************
+//  INPUT DEFINITIONS
+//**************************************************************************
+
+static INPUT_PORTS_START( apxen )
+INPUT_PORTS_END
+
+
+//**************************************************************************
+//  VIDEO EMULATION
+//**************************************************************************
+
+uint32_t apxen_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+	return 0;
+}
+
+MC6845_UPDATE_ROW( apxen_state::crtc_update_row )
+{
+}
+
+
+//**************************************************************************
+//  MACHINE EMULATION
+//**************************************************************************
+
+void apxen_state::machine_start()
+{
+}
+
+void apxen_state::machine_reset()
+{
+}
+
+uint8_t apxen_state::get_slave_ack(offs_t offset)
+{
+	if (offset == 2)
+		return m_pic[1]->acknowledge();
+
+	return 0x00;
+}
+
+
+//**************************************************************************
+//  MACHINE DEFINTIONS
+//**************************************************************************
+
+void apxen_state::apxen(machine_config &config)
+{
+	I80286(config, m_maincpu, 15_MHz_XTAL / 2);
+	m_maincpu->set_addrmap(AS_PROGRAM, &apxen_state::mem_map);
+	m_maincpu->set_addrmap(AS_IO, &apxen_state::io_map);
+	m_maincpu->set_irq_acknowledge_callback(m_pic[0], FUNC(pic8259_device::inta_cb));
+
+	PIC8259(config, m_pic[0], 0);
+	m_pic[0]->out_int_callback().set_inputline(m_maincpu, 0);
+	m_pic[0]->in_sp_callback().set_constant(1);
+	m_pic[0]->read_slave_ack_callback().set(FUNC(apxen_state::get_slave_ack));
+
+	PIC8259(config, m_pic[1], 0);
+	m_pic[1]->out_int_callback().set(m_pic[0], FUNC(pic8259_device::ir2_w));
+	m_pic[1]->in_sp_callback().set_constant(0);
+
+	// video hardware
+	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+	screen.set_color(rgb_t::green());
+	screen.set_size(800, 400);
+	screen.set_visarea(0, 800-1, 0, 400-1);
+	screen.set_refresh_hz(72);
+	screen.set_screen_update(FUNC(apxen_state::screen_update));
+
+	PALETTE(config, m_mono_palette, palette_device::MONOCHROME_HIGHLIGHT);
+
+	HD6845S(config, m_crtc, 24_MHz_XTAL / 20); // actually MB89321B
+	m_crtc->set_screen("screen");
+	m_crtc->set_show_border_area(false);
+	m_crtc->set_char_width(10);
+	m_crtc->set_update_row_callback(FUNC(apxen_state::crtc_update_row));
+}
+
+
+//**************************************************************************
+//  ROM DEFINITIONS
+//**************************************************************************
+
+ROM_START( apxen )
+	ROM_REGION16_LE(0x10000, "bios", 0)
+	// LO-XEN  3.1.3 7143 (checksum matches)
+	ROM_LOAD16_BYTE("lo-xen_313.ic80", 0x0000, 0x8000, CRC(c2a1fd6e) SHA1(8dfc711dd910bc3d43c1120978ba199a13463068))
+	// HI-XEN  3.1.3 9BF0 (checksum matches)
+	ROM_LOAD16_BYTE("hi-xen_313.ic37", 0x0001, 0x8000, CRC(72ee2f09) SHA1(da11043d40a694802f6d3d27a4359067dd19c8e6))
+
+	// should probably be moved elsewhere
+	ROM_REGION(0x2000, "hdd", 0)
+	ROM_LOAD("rodime_ro3055.bin", 0x0000, 0x2000, CRC(61d1544a) SHA1(2177a4c6409c0ee3d3e3e6c659085adf236f8726))
+ROM_END
+
+
+} // anonymous namespace
+
+
+//**************************************************************************
+//  SYSTEM DRIVERS
+//**************************************************************************
+
+//    YEAR  NAME   PARENT  COMPAT  MACHINE  INPUT  CLASS        INIT        COMPANY  FULLNAME       FLAGS
+COMP( 1985, apxen, 0,      0,      apxen,   apxen, apxen_state, empty_init, "ACT",   "Apricot XEN", MACHINE_IS_SKELETON )

src/mame/mame.lst

@@ -1484,6 +1484,9 @@ f2                              //
 @source:apricotp.cpp
 fp                              //
 
+@source:apxen.cpp
+apxen                           // 1985 ACT
+
 @source:aquarium.cpp
 aquarium                        // (c) 1996 Excellent System
 aquariumj                       // (c) 1996 Excellent System

src/mame/mess.flt

@@ -80,6 +80,7 @@ applix.cpp
 apricot.cpp
 apricotf.cpp
 apricotp.cpp
+apxen.cpp
 aquarius.cpp
 arcadia.cpp
 argo.cpp