diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 8df945d71ea..31b9e185a37 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -1887,6 +1887,11 @@ files {
 	MAME_DIR .. "src/mame/drivers/ave_arb.cpp",
 }
 
+createMESSProjects(_target, _subtarget, "aviion")
+files {
+	MAME_DIR .. "src/mame/drivers/aviion88k.cpp",
+}
+
 createMESSProjects(_target, _subtarget, "bally")
 files {
 	MAME_DIR .. "src/mame/drivers/astrohome.cpp",
diff --git a/src/mame/drivers/aviion88k.cpp b/src/mame/drivers/aviion88k.cpp
new file mode 100644
index 00000000000..5b797c1e677
--- /dev/null
+++ b/src/mame/drivers/aviion88k.cpp
@@ -0,0 +1,250 @@
+// license:BSD-3-Clause
+// copyright-holders:Patrick Mackinlay
+
+/*
+ * Data General AViiON M88k systems.
+ *
+ * Sources:
+ *  - https://archive.org/details/Aviion530Docs/40020761
+ *
+ * TODO:
+ *  - everything
+ */
+
+#include "emu.h"
+
+// processors and memory
+#include "cpu/m88000/m88000.h"
+#include "machine/ram.h"
+#include "machine/28fxxx.h"
+
+// i/o devices
+#include "machine/timekpr.h"
+#include "machine/mc68681.h"
+#include "machine/53c7xx.h"
+#include "machine/scn_pci.h"
+#include "machine/scnxx562.h"
+
+// busses and connectors
+#include "machine/nscsi_bus.h"
+#include "bus/nscsi/cd.h"
+#include "bus/nscsi/hd.h"
+#include "bus/rs232/rs232.h"
+#include "bus/pc_kbd/pc_kbdc.h"
+#include "bus/pc_kbd/keyboards.h"
+
+#include "sound/spkrdev.h"
+#include "speaker.h"
+
+#include "debugger.h"
+
+#define LOG_GENERAL (1U << 0)
+
+#define VERBOSE 0
+#include "logmacro.h"
+
+namespace {
+
+class aviion88k_state : public driver_device
+{
+public:
+	aviion88k_state(machine_config const &mconfig, device_type type, char const *tag)
+		: driver_device(mconfig, type, tag)
+		, m_cpu(*this, "cpu")
+		, m_prom(*this, "prom%u", 0U)
+		, m_ram(*this, "ram")
+		, m_novram(*this, "novram")
+		, m_uart(*this, "uart")
+		, m_kbd(*this, "kbd")
+		, m_duart(*this, "duart%u", 0U)
+		, m_async(*this, { "console", "seriala", "mouse", "serialb" })
+		, m_duscc(*this, "duscc")
+		, m_scsibus(*this, "scsi")
+		, m_scsi(*this, "scsi:7:ncr53c700")
+		, m_speaker(*this, "speaker")
+		, m_leds(*this, "CR%u", 1U)
+		, m_mbus(*this, "mbus")
+	{
+	}
+
+	// machine config
+	void aviion_4600(machine_config &config);
+
+	void init();
+
+protected:
+	// driver_device overrides
+	virtual void machine_start() override;
+	virtual void machine_reset() override;
+
+	// address maps
+	void cpu_map(address_map &map);
+
+private:
+	// processors and memory
+	required_device<mc88100_device> m_cpu;
+	required_device_array<intel_28f010_device, 4> m_prom;
+	required_device<ram_device> m_ram;
+
+	// i/o devices
+	required_device<timekeeper_device> m_novram;
+	required_device<scn_pci_device> m_uart;
+	required_device<pc_kbdc_device> m_kbd;
+	required_device_array<scn2681_device, 2> m_duart;
+	required_device_array<rs232_port_device, 4> m_async;
+	required_device<duscc68562_device> m_duscc;
+	required_device<nscsi_bus_device> m_scsibus;
+	required_device<ncr53c7xx_device> m_scsi;
+	required_device<speaker_sound_device> m_speaker;
+
+	output_finder<3> m_leds;
+
+	memory_view m_mbus;
+};
+
+void aviion88k_state::machine_start()
+{
+	m_leds.resolve();
+}
+
+void aviion88k_state::machine_reset()
+{
+	// disable mbus address decode
+	m_mbus.select(0);
+}
+
+void aviion88k_state::init()
+{
+	// map the configured ram
+	m_mbus[1].install_ram(0x00000000, m_ram->mask(), m_ram->pointer());
+}
+
+void aviion88k_state::cpu_map(address_map &map)
+{
+	map(0x00000000, 0xffc7ffff).view(m_mbus);
+
+	// mbus address decode disabled
+	m_mbus[0](0x00000000, 0x0007ffff).rw(m_prom[0], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).mirror(0xffc00000).umask32(0xff000000);
+	m_mbus[0](0x00000000, 0x0007ffff).rw(m_prom[1], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).mirror(0xffc00000).umask32(0x00ff0000);
+	m_mbus[0](0x00000000, 0x0007ffff).rw(m_prom[2], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).mirror(0xffc00000).umask32(0x0000ff00);
+	m_mbus[0](0x00000000, 0x0007ffff).rw(m_prom[3], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).mirror(0xffc00000).umask32(0x000000ff);
+
+	// mbus address decode enabled
+	m_mbus[1](0xffc00000, 0xffc7ffff).rw(m_prom[0], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).umask32(0xff000000);
+	m_mbus[1](0xffc00000, 0xffc7ffff).rw(m_prom[1], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).umask32(0x00ff0000);
+	m_mbus[1](0xffc00000, 0xffc7ffff).rw(m_prom[2], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).umask32(0x0000ff00);
+	m_mbus[1](0xffc00000, 0xffc7ffff).rw(m_prom[3], FUNC(intel_28f010_device::read), FUNC(intel_28f010_device::write)).umask32(0x000000ff);
+
+	map(0xfff8'0000, 0xfff8'1fff).rw(m_novram, FUNC(mk48t12_device::read), FUNC(mk48t12_device::write)).umask32(0x000000ff);
+	map(0xfff8'2000, 0xfff8'203f).rw(m_duart[0], FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask32(0x000000ff);
+	map(0xfff8'2040, 0xfff8'207f).rw(m_duart[1], FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask32(0x000000ff);
+	map(0xfff8'2800, 0xfff8'280f).rw(m_uart, FUNC(scn2661a_device::read), FUNC(scn2661a_device::write)).umask32(0x000000ff);
+
+	map(0xfff8'3100, 0xfff8'3103).lw32(
+		[this](u32 data)
+		{
+			if (!BIT(data, 0))
+				m_duart[0]->reset();
+			if (!BIT(data, 1))
+				m_duart[1]->reset();
+
+			// reset the keyboard or the uart?
+			if (!BIT(data, 3))
+				m_uart->reset();
+		}, "srst_w");
+
+	map(0xfff8'8018, 0xfff8'801b).lr32([]() { return 0xa1; }, "whoami_r");
+}
+
+static void aviion88k_scsi_devices(device_slot_interface &device)
+{
+	device.option_add("harddisk", NSCSI_HARDDISK);
+	device.option_add("cdrom", NSCSI_CDROM);
+}
+
+void aviion88k_state::aviion_4600(machine_config &config)
+{
+	MC88100(config, m_cpu, 33'333'333);
+	m_cpu->set_addrmap(AS_PROGRAM, &aviion88k_state::cpu_map);
+
+	INTEL_28F010(config, m_prom[0]);
+	INTEL_28F010(config, m_prom[1]);
+	INTEL_28F010(config, m_prom[2]);
+	INTEL_28F010(config, m_prom[3]);
+
+	// 8 SIMM slots (populated with pairs of 4M or 16M modules)
+	RAM(config, m_ram);
+	m_ram->set_default_size("8M");
+	m_ram->set_extra_options("16M,24M,32M,40M,48M,56M,64M,72M,80M,96M,104M,128M");
+	m_ram->set_default_value(0);
+
+	MK48T12(config, m_novram);
+
+	// uart - keyboard interface
+	SCN2661A(config, m_uart, 0);
+
+	// keyboard connector
+	PC_KBDC(config, m_kbd, pc_at_keyboards, nullptr);
+	m_kbd->out_clock_cb().set(m_uart, FUNC(scn2661a_device::rxc_w)).invert();
+	m_kbd->out_clock_cb().append(m_uart, FUNC(scn2661a_device::txc_w)).invert();
+	m_kbd->out_data_cb().set(m_uart, FUNC(scn2661a_device::rxd_w));
+
+	// duart 1
+	SCN2681(config, m_duart[0], 14.7456_MHz_XTAL / 4); // SCC2692
+	RS232_PORT(config, m_async[0], default_rs232_devices, "terminal"); // console: DCD,RXD,TXD,DTR,RTS,CTS
+	RS232_PORT(config, m_async[1], default_rs232_devices, nullptr); // async A: DCD,RXD,TXD,DTR,DSR,RTS,CTS,RI
+
+	m_duart[0]->a_tx_cb().set(m_async[0], FUNC(rs232_port_device::write_txd));
+	m_duart[0]->b_tx_cb().set(m_async[1], FUNC(rs232_port_device::write_txd));
+	m_async[0]->rxd_handler().set(m_duart[0], FUNC(scn2681_device::rx_a_w));
+	m_async[1]->rxd_handler().set(m_duart[0], FUNC(scn2681_device::rx_b_w));
+
+	// duart 2
+	SCN2681(config, m_duart[1], 14.7456_MHz_XTAL / 4); // SCC2692
+	RS232_PORT(config, m_async[2], default_rs232_devices, nullptr); // mouse: RTS,DTR,TXD,RXD
+	RS232_PORT(config, m_async[3], default_rs232_devices, nullptr); // async B: DCD,RXD,TXD,DTR,DSR,RTS,CTS,RI
+
+	m_duart[1]->a_tx_cb().set(m_async[2], FUNC(rs232_port_device::write_txd));
+	m_duart[1]->b_tx_cb().set(m_async[3], FUNC(rs232_port_device::write_txd));
+	m_async[2]->rxd_handler().set(m_duart[1], FUNC(scn2681_device::rx_a_w));
+	m_async[3]->rxd_handler().set(m_duart[1], FUNC(scn2681_device::rx_b_w));
+
+	// duscc
+	DUSCC68562(config, m_duscc, 14.7456_MHz_XTAL);
+
+	// scsi bus and devices
+	NSCSI_BUS(config, m_scsibus);
+	NSCSI_CONNECTOR(config, "scsi:0", aviion88k_scsi_devices, "harddisk");
+	NSCSI_CONNECTOR(config, "scsi:1", aviion88k_scsi_devices, nullptr);
+	NSCSI_CONNECTOR(config, "scsi:2", aviion88k_scsi_devices, nullptr);
+	NSCSI_CONNECTOR(config, "scsi:3", aviion88k_scsi_devices, nullptr);
+	NSCSI_CONNECTOR(config, "scsi:4", aviion88k_scsi_devices, nullptr);
+	NSCSI_CONNECTOR(config, "scsi:5", aviion88k_scsi_devices, nullptr);
+	NSCSI_CONNECTOR(config, "scsi:6", aviion88k_scsi_devices, nullptr);
+
+	// scsi host adapter (NCR53C700)
+	NSCSI_CONNECTOR(config, "scsi:7").option_set("ncr53c700", NCR53C7XX).clock(66'000'000);
+
+	// TODO: ethernet (AM79C900)
+
+	// speaker
+	SPEAKER(config, "mono").front_center();
+	SPEAKER_SOUND(config, m_speaker);
+	m_speaker->add_route(ALL_OUTPUTS, "mono", 0.50);
+}
+
+ROM_START(aviion_4600)
+	ROM_REGION(0x20000, "prom0", 0)
+	ROM_LOAD("11513__x02__92-05.bin", 0, 0x20000, CRC(7031d7d4) SHA1(c1ca7567b764b7f48e53b9bc8df40407464f9f67))
+	ROM_REGION(0x20000, "prom1", 0)
+	ROM_LOAD("11514__x02__92-06.bin", 0, 0x20000, CRC(4fcf85e6) SHA1(9afeec63cf8098d4518dc0712ba92614d44cd859))
+	ROM_REGION(0x20000, "prom2", 0)
+	ROM_LOAD("11515__x02__92-05.bin", 0, 0x20000, CRC(c9ce39d7) SHA1(fbdd3287b9f9eb6a621d7c10d900ccaff02660c5))
+	ROM_REGION(0x20000, "prom3", 0)
+	ROM_LOAD("11516__x02__92-05.bin", 0, 0x20000, CRC(71b6d338) SHA1(eb85bd16a25b6cd790272f007b8117fcf13b6b40))
+ROM_END
+
+} // anonymous namespace
+
+/*   YEAR   NAME         PARENT  COMPAT  MACHINE      INPUT  CLASS            INIT  COMPANY         FULLNAME       FLAGS */
+COMP(1991,  aviion_4600, 0,      0,      aviion_4600, 0,     aviion88k_state, init, "Data General", "AViiON 4600", MACHINE_IS_SKELETON)
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 30ad5812762..e6dd4bd8b00 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -3117,6 +3117,9 @@ avigo_es                        // 1997 Avigo (Spanish)
 avigo_fr                        // 1997 Avigo (French)
 avigo_it                        // 1997 Avigo (Italian)
 
+@source:aviion88k.cpp
+aviion_4600                     // Data General AViiON 4600
+
 @source:avrmax.cpp
 avrmax
 avrmaxg
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 36ace1fa0c0..20ce43ddbc9 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -100,6 +100,7 @@ attache.cpp
 aussiebyte.cpp
 ave_arb.cpp
 avigo.cpp
+aviion88k.cpp
 avrmax.cpp
 ax20.cpp
 b16.cpp