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author Patrick Mackinlay <pmackinlay@hotmail.com>2018-10-12 16:45:25 +0700
committer Patrick Mackinlay <pmackinlay@hotmail.com>2018-10-12 16:45:25 +0700
commitfc86a4ab09693801aaebea02cf4cfa36ad5fb66c (patch)
treea510afb17db54c311e56f9ccf754f182d2176cac
parent677ba1d50f46e3cb2dc16cc4abe7f56079441ca8 (diff)
mips: new skeleton driver
A driver for machines made by MIPS Computer Systems, which used MIPS R2000, R3000 and R6000 CPUs and ran RISC/os (a port of UNIX System V Release 3). Initial focus is the RC2030 headless workstation. As of this commit, it gets part-way through its I/O processor diagnostics with output to a serial terminal.
-rw-r--r--scripts/target/mame/mess.lua7
-rw-r--r--src/devices/cpu/mips/r3000.cpp14
-rw-r--r--src/devices/cpu/mips/r3000.h14
-rw-r--r--src/mame/drivers/mips.cpp303
-rw-r--r--src/mame/includes/mips.h100
-rw-r--r--src/mame/mame.lst4
-rw-r--r--src/mame/mess.flt1
7 files changed, 443 insertions, 0 deletions
diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 090fc2cadcc..b7199ceb480 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -1088,6 +1088,7 @@ function linkProjects_mame_mess(_target, _subtarget)
"mgu",
"microkey",
"microsoft",
+ "mips"
"mit",
"mits",
"mitsubishi",
@@ -2486,6 +2487,12 @@ files {
MAME_DIR .. "src/mame/includes/xbox_pci.h",
}
+createMESSProjects(_target, _subtarget, "mips")
+files {
+ MAME_DIR .. "src/mame/drivers/mips.cpp",
+ MAME_DIR .. "src/mame/includes/mips.h",
+}
+
createMESSProjects(_target, _subtarget, "mit")
files {
MAME_DIR .. "src/mame/drivers/tx0.cpp",
diff --git a/src/devices/cpu/mips/r3000.cpp b/src/devices/cpu/mips/r3000.cpp
index 6495c922f86..9ac90837ec2 100644
--- a/src/devices/cpu/mips/r3000.cpp
+++ b/src/devices/cpu/mips/r3000.cpp
@@ -115,6 +115,7 @@
// DEVICE INTERFACE
//**************************************************************************
+DEFINE_DEVICE_TYPE(R2000, r2000_device, "r2000", "MIPS R2000")
DEFINE_DEVICE_TYPE(R3041, r3041_device, "r3041", "MIPS R3041")
DEFINE_DEVICE_TYPE(R3051, r3051_device, "r3051", "MIPS R3051")
DEFINE_DEVICE_TYPE(R3052, r3052_device, "r3052", "MIPS R3052")
@@ -166,6 +167,13 @@ r3000_device::~r3000_device()
{
}
+//-------------------------------------------------
+// r2000_device - constructor
+//-------------------------------------------------
+
+r2000_device::r2000_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : r3000_device(mconfig, R2000, tag, owner, clock, CHIP_TYPE_R2000) { }
+
//-------------------------------------------------
// r3041_device - constructor
@@ -242,6 +250,12 @@ void r3000_device::device_start()
// determine the cache sizes
switch (m_chip_type)
{
+ case CHIP_TYPE_R2000:
+ {
+ m_icache_size = 32768; // external
+ m_dcache_size = 32768; // external
+ break;
+ }
case CHIP_TYPE_R3041:
{
m_icache_size = 2048;
diff --git a/src/devices/cpu/mips/r3000.h b/src/devices/cpu/mips/r3000.h
index db8313309e2..cf495d188df 100644
--- a/src/devices/cpu/mips/r3000.h
+++ b/src/devices/cpu/mips/r3000.h
@@ -79,10 +79,15 @@ public:
template <class Object> devcb_base &set_brcond1_input(Object &&cb) { return m_in_brcond1.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_brcond2_input(Object &&cb) { return m_in_brcond2.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_brcond3_input(Object &&cb) { return m_in_brcond3.set_callback(std::forward<Object>(cb)); }
+ auto in_brcond0() { return m_in_brcond0.bind(); }
+ auto in_brcond1() { return m_in_brcond1.bind(); }
+ auto in_brcond2() { return m_in_brcond2.bind(); }
+ auto in_brcond3() { return m_in_brcond3.bind(); }
protected:
enum chip_type
{
+ CHIP_TYPE_R2000,
CHIP_TYPE_R3041,
CHIP_TYPE_R3051,
CHIP_TYPE_R3052,
@@ -246,6 +251,14 @@ protected:
devcb_read_line m_in_brcond3;
};
+// ======================> r3041_device
+
+class r2000_device : public r3000_device
+{
+public:
+ r2000_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+};
+
// ======================> r3041_device
@@ -306,6 +319,7 @@ protected:
// device type definition
+DECLARE_DEVICE_TYPE(R2000, r2000_device)
DECLARE_DEVICE_TYPE(R3041, r3041_device)
DECLARE_DEVICE_TYPE(R3051, r3051_device)
DECLARE_DEVICE_TYPE(R3052, r3052_device)
diff --git a/src/mame/drivers/mips.cpp b/src/mame/drivers/mips.cpp
new file mode 100644
index 00000000000..777f5773b76
--- /dev/null
+++ b/src/mame/drivers/mips.cpp
@@ -0,0 +1,303 @@
+// license:BSD-3-Clause
+// copyright-holders:Patrick Mackinlay
+
+/*
+ * An emulation of systems designed and manufactured by MIPS Computer Systems,
+ * all of which use MIPS R2000, R3000 or R6000 CPUs, and run the RISC/os
+ * operating system.
+ *
+ * This driver is intended to eventually cover the following models:
+ *
+ * Name CPU Clock Slots Disk Package Other
+ * M/500 R2000 5MHz VME ESDI
+ * M/800 R2000 8MHz VME ESDI
+ * M/1000 R2000 10MHz VME ESDI
+ * M/120-3 R2000 12MHz PC-AT SCSI Deskside
+ * M/120-5 R2000 16MHz PC-AT SCSI Deskside
+ * M/2000-6 R3000 20MHz VMEx13 SMD Rack Cabinet
+ * M/2000-8 R3000 25MHz VMEx13 SMD Rack Cabinet
+ * RC2030 R2000 16MHz SCSI Desktop
+ * RS2030 R2000 16MHz SCSI Desktop aka M/12
+ * RC3230 R3000 25MHz PC-ATx1 SCSI Desktop
+ * RS3230 R3000 25MHz PC-ATx1 SCSI Desktop aka M/20, Magnum 3000
+ * RC3240 R3000 20MHz PC-ATx4 SCSI Deskside M/120 with CPU-board upgrade
+ * RC3330 R3000 33MHz PC-AT SCSI Desktop
+ * RS3330 R3000 33MHz PC-AT SCSI Desktop
+ * RC3260 R3000 25MHz VMEx7 SCSI Pedestal
+ * RC3360 R3000 33MHz VME SCSI Pedestal
+ * RC6260 R6000 66MHz VME SCSI Pedestal
+ * RC6280 R6000 66MHz VMEx6 SMD Data Center
+ * RC6380-100 R6000x1 66MHz VME SMD Data Center
+ * RC6380-200 R6000x2 66MHz VME SMD Data Center
+ * RC6380-400 R6000x4 66MHz VME SMD Data Center
+ *
+ * Sources:
+ *
+ * http://www.umips.net/
+ * http://www.geekdot.com/the-mips-rs2030/
+ * http://www.jp.netbsd.org/ports/mipsco/models.html
+ *
+ * TODO
+ * - everything (skeleton only)
+ *
+ * Ref Part Function
+ *
+ * System board:
+ *
+ * Video board:
+ *
+ */
+/*
+ * WIP notes
+ *
+ * nvram must be prepped with 0x74, 0x61 or 0x31 at offset 0x29
+ *
+ * Currently fails during IOP address path diagnostic. Bypass with:
+ * bp f7c51; g
+ * pc=f7c54; aw=0; g
+ *
+ * V50 internal peripherals:
+ * base = 0xfe00
+ * serial (sula): fe00
+ * timer (tula): fe08
+ * int (iula): fe10
+ * dma (dula): fe20 - unimplemented in uPD71037 mode (sctl & 2)
+ *
+ */
+
+#include "emu.h"
+
+#include "includes/mips.h"
+
+#include "debugger.h"
+
+#define VERBOSE 0
+#include "logmacro.h"
+
+void rx2030_state::machine_start()
+{
+}
+
+void rx2030_state::machine_reset()
+{
+}
+
+void rx2030_state::rx2030_init()
+{
+ // map the configured ram and vram
+ m_maincpu->space(0).install_ram(0x00000000, 0x00000000 | m_ram->mask(), m_ram->pointer());
+
+ if (m_vram)
+ m_maincpu->space(0).install_ram(0x01000000, 0x01000000 | m_vram->mask(), m_vram->pointer());
+}
+
+void rx2030_state::iop_program_map(address_map &map)
+{
+ map(0x00000, 0x1ffff).ram();
+
+ map(0x20000, 0xbffff).lrw16("shared",
+ [this](offs_t offset, u16 mem_mask)
+ {
+ offs_t const address = 0x1000 + (offset << 1);
+
+ u16 const data = (m_ram->read(address + 1) << 8) | m_ram->read(address + 0);
+ //logerror("shared_r 0x%04x data 0x%04x mask 0x%04x\n", address, data, mem_mask);
+ return data;
+ },
+ [this](offs_t offset, u16 data, u16 mem_mask)
+ {
+ offs_t const address = 0x1000 + (offset << 1);
+
+ //logerror("shared_w 0x%04x data 0x%04x mask 0x%04x\n", address, data, mem_mask);
+ m_ram->write(address + 0, data);
+ m_ram->write(address + 1, data >> 8);
+ });
+ map(0xc0000, 0xfffff).rom().region("eprom", 0);
+}
+
+void rx2030_state::iop_io_map(address_map &map)
+{
+ // 0x180-18a ? .umask16(0xff)
+ // 0x1c0 ?
+ // 0x044
+ // 0x2c0
+
+ map(0x0000, 0x003f).lrw16("mmu",
+ [this](offs_t offset, u16 mem_mask)
+ {
+ return m_mmu[offset];
+ },
+ [this](offs_t offset, u16 data, u16 mem_mask)
+ {
+ //logerror("mmu_w %d data 0x%04x\n", offset, data);
+
+ m_mmu[offset] = data;
+ });
+
+ map(0x00c0, 0x00c1).rw(m_kbdc, FUNC(at_keyboard_controller_device::data_r), FUNC(at_keyboard_controller_device::data_w)).umask16(0xff);
+ map(0x00c4, 0x00c5).rw(m_kbdc, FUNC(at_keyboard_controller_device::status_r), FUNC(at_keyboard_controller_device::command_w)).umask16(0xff);
+
+ map(0x0080, 0x0083).rw(m_scsi, FUNC(wd33c93_device::read), FUNC(wd33c93_device::write)).umask16(0xff);
+
+ map(0x0100, 0x0107).rw(m_scc, FUNC(z80scc_device::ba_cd_inv_r), FUNC(z80scc_device::ba_cd_inv_w)).umask16(0xff);
+ map(0x0140, 0x0143).rw(m_net, FUNC(am7990_device::regs_r), FUNC(am7990_device::regs_w));
+ //map(0x0200, 0x0203).rw(m_lpt, FUNC(::read), FUNC(::write));
+
+ map(0x0240, 0x0241).lw8("rtc", [this](address_space &space, offs_t offset, u8 data) { m_rtc->write(space, 0, data); }).umask16(0xff00);
+ map(0x0280, 0x0281).lrw8("rtc",
+ [this](address_space &space, offs_t offset) { return m_rtc->read(space, 1); },
+ [this](address_space &space, offs_t offset, u8 data) { m_rtc->write(space, 1, data); }).umask16(0xff00);
+
+ map(0x0380, 0x0381).lw8("led", [this](u8 data) { logerror("led_w 0x%02x\n", data); }).umask16(0xff00);
+}
+
+void rx2030_state::cpu_map(address_map &map)
+{
+ //map(0x01ff0000, 0x01ffffff).m() // ramdac
+ //map(0x1fc00000, 0x1fc3ffff).rom().region("eprom", 0);
+
+ //map(0x10003000, 0x1003ffff).rom().region("eprom", 0); // mirror?
+}
+
+void rx2030_state::rx2030(machine_config &config)
+{
+ // FIXME: main cpu disabled for now
+ R2000(config, m_maincpu, 16.6698_MHz_XTAL);
+ m_maincpu->set_addrmap(AS_PROGRAM, &rx2030_state::cpu_map);
+ m_maincpu->in_brcond0().set([]() { return ASSERT_LINE; });
+ m_maincpu->set_disable();
+
+ // TODO: mouse connects to v50 serial?
+ V53(config, m_iop, 20_MHz_XTAL / 2);
+ m_iop->set_addrmap(AS_PROGRAM, &rx2030_state::iop_program_map);
+ m_iop->set_addrmap(AS_IO, &rx2030_state::iop_io_map);
+
+ RAM(config, m_ram);
+ m_ram->set_default_size("16M");
+ m_ram->set_extra_options("4M,8M,12M");
+ m_ram->set_default_value(0);
+
+ // rtc and nvram
+ MC146818(config, m_rtc, 32.768_kHz_XTAL);
+
+ // TODO: ethernet id prom
+ // TODO: parallel port
+
+ // keyboard
+ pc_kbdc_device &kbdc(PC_KBDC(config, "pc_kbdc", 0));
+ kbdc.out_clock_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_clk_w));
+ kbdc.out_data_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_data_w));
+
+ PC_KBDC_SLOT(config, m_kbd, 0);
+ pc_at_keyboards(*m_kbd);
+ m_kbd->set_pc_kbdc_slot(&kbdc);
+
+ AT_KEYBOARD_CONTROLLER(config, m_kbdc, 12_MHz_XTAL);
+ //m_kbdc->hot_res().set_inputline(m_maincpu, INPUT_LINE_RESET);
+ m_kbdc->kbd_clk().set(kbdc, FUNC(pc_kbdc_device::clock_write_from_mb));
+ m_kbdc->kbd_data().set(kbdc, FUNC(pc_kbdc_device::data_write_from_mb));
+
+ // TODO: verify scc device and clock
+ SCC85C30(config, m_scc, 4.9152_MHz_XTAL);
+ m_scc->configure_channels(1'843'200, 1'843'200, 1'843'200, 1'843'200);
+ //m_scc->out_int_callback().set(m_iop, FUNC(v53_device::intp1_w));
+
+ // scc channel A (tty0)
+ RS232_PORT(config, m_tty[0], default_rs232_devices, nullptr);
+ m_tty[0]->cts_handler().set(m_scc, FUNC(z80scc_device::ctsa_w));
+ m_tty[0]->dcd_handler().set(m_scc, FUNC(z80scc_device::dcda_w));
+ m_tty[0]->rxd_handler().set(m_scc, FUNC(z80scc_device::rxa_w));
+ m_scc->out_rtsa_callback().set(m_tty[0], FUNC(rs232_port_device::write_rts));
+ m_scc->out_txda_callback().set(m_tty[0], FUNC(rs232_port_device::write_txd));
+ //m_scc->out_wreqa_callback().set(m_ioga, FUNC(interpro_ioga_device::drq_serial1)).invert();
+
+ // scc channel B (tty1)
+ RS232_PORT(config, m_tty[1], default_rs232_devices, nullptr);
+ m_tty[1]->cts_handler().set(m_scc, FUNC(z80scc_device::ctsb_w));
+ m_tty[1]->dcd_handler().set(m_scc, FUNC(z80scc_device::dcdb_w));
+ m_tty[1]->rxd_handler().set(m_scc, FUNC(z80scc_device::rxb_w));
+ m_scc->out_rtsb_callback().set(m_tty[1], FUNC(rs232_port_device::write_rts));
+ m_scc->out_txdb_callback().set(m_tty[1], FUNC(rs232_port_device::write_txd));
+ //m_scc->out_wreqb_callback().set(m_ioga, FUNC(interpro_ioga_device::drq_serial2)).invert();
+
+ // floppy controller and drive
+ WD37C65C(config, m_fdc, 16_MHz_XTAL);
+ //m_fdc->intrq_wr_callback().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<1>));
+ //m_fdc->drq_wr_callback().set(m_mct_adr, FUNC(jazz_mct_adr_device::drq<1>));
+ FLOPPY_CONNECTOR(config, "fdc:0", "35hd", FLOPPY_35_HD, true, &FLOPPY_PC_FORMAT).enable_sound(false);
+ //m_mct_adr->dma_r_cb<1>().set(m_fdc, FUNC(n82077aa_device::dma_r));
+ //m_mct_adr->dma_w_cb<1>().set(m_fdc, FUNC(n82077aa_device::dma_w));
+
+ // scsi controller and port
+ scsi_port_device &scsi_port(SCSI_PORT(config, "scsi_port"));
+ WD33C93(config, m_scsi);
+ m_scsi->set_scsi_port(scsi_port);
+ //m_scsi->irq_cb().set_inputline()
+
+ // ethernet
+ AM7990(config, m_net);
+ //m_net->dma_in().set(FUNC(rx2030_state::lance_dma_r));
+ //m_net->dma_out().set(FUNC(rx2030_state::lance_dma_w));
+}
+
+void rx2030_state::rc2030(machine_config &config)
+{
+ rx2030(config);
+
+ // no keyboard
+ m_kbd->set_default_option(nullptr);
+
+ m_tty[1]->set_default_option("terminal");
+}
+
+void rx2030_state::rs2030(machine_config &config)
+{
+ rx2030(config);
+
+ m_kbd->set_default_option(STR_KBD_MICROSOFT_NATURAL);
+
+ // video hardware (1280x1024x8bpp @ 60Hz), 40 parts vram
+ const u32 pixclock = 108'189'000;
+
+ // timing from VESA 1280x1024 @ 60Hz
+ SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
+ m_screen->set_raw(pixclock, 1688, 248, 1528, 1066, 38, 1062);
+ m_screen->set_screen_update(FUNC(rx2030_state::screen_update));
+ m_screen->screen_vblank().set([this](int state) {});
+
+ BT458(config, m_ramdac, pixclock);
+ RAM(config, m_vram, 0).set_default_size("2M");
+}
+
+u32 rx2030_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+ u8 *pixel_data = m_vram->pointer();
+
+ for (int y = screen.visible_area().min_y; y <= screen.visible_area().max_y; y++)
+ for (int x = screen.visible_area().min_x; x <= screen.visible_area().max_x; x++)
+ bitmap.pix(y, x) = m_ramdac->pen_color(*pixel_data++);
+
+ return 0;
+}
+
+ROM_START(rx2030)
+ ROM_REGION(0x40000, "eprom", 0)
+
+ ROM_SYSTEM_BIOS(0, "v4.32", "Rx2030 v4.32, Jan 1991")
+ ROMX_LOAD("50-00121__005.u139", 0x00000, 0x10000, CRC(b2f42665) SHA1(81c83aa6b8865338fda5c03733ede91749997648), ROM_BIOS(0) | ROM_SKIP(1))
+ ROMX_LOAD("50-00120__005.u140", 0x00001, 0x10000, CRC(0ffa485e) SHA1(7cdfb81d1a547c5ccc88e1e0ef73d447cd03e9e2), ROM_BIOS(0) | ROM_SKIP(1))
+ ROMX_LOAD("50-00119__005.u141", 0x20001, 0x10000, CRC(68fb219d) SHA1(7161ad8e5e0207d8730e09753ca74bfec0e782f8), ROM_BIOS(0) | ROM_SKIP(1))
+ ROMX_LOAD("50-00118__005.u142", 0x20000, 0x10000, CRC(b59426d3) SHA1(3fc09b0368f731c2c07cf29b481f30c01e330929), ROM_BIOS(0) | ROM_SKIP(1))
+
+ ROM_SYSTEM_BIOS(1, "v4.30", "Rx2030 v4.30, Jul 1989")
+ ROMX_LOAD("50-00121__003.u139", 0x00000, 0x10000, CRC(ebc580ac) SHA1(63f9a1d344d53f32ee769f5137820faf64ffa291), ROM_BIOS(1) | ROM_SKIP(1))
+ ROMX_LOAD("50-00120__003.u140", 0x00001, 0x10000, CRC(e1991721) SHA1(028d33be271c95f198473b650f7800f9ca4a60b2), ROM_BIOS(1) | ROM_SKIP(1))
+ ROMX_LOAD("50-00119__003.u141", 0x20001, 0x10000, CRC(c8469906) SHA1(69bbf4b5c415b2e2156a4467bf9cb30e79f586ef), ROM_BIOS(1) | ROM_SKIP(1))
+ ROMX_LOAD("50-00118__003.u142", 0x20000, 0x10000, CRC(18cc001a) SHA1(198023e92e1e3ba2fc8637f5dd6f370e7e023fdd), ROM_BIOS(1) | ROM_SKIP(1))
+ROM_END
+#define rom_rc2030 rom_rx2030
+#define rom_rs2030 rom_rx2030
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP(1989, rc2030, 0, 0, rc2030, 0, rx2030_state, rx2030_init, "MIPS", "RC2030", MACHINE_IS_SKELETON | MACHINE_NO_SOUND)
+COMP(1989, rs2030, 0, 0, rs2030, 0, rx2030_state, rx2030_init, "MIPS", "RS2030", MACHINE_IS_SKELETON | MACHINE_NO_SOUND)
diff --git a/src/mame/includes/mips.h b/src/mame/includes/mips.h
new file mode 100644
index 00000000000..0fb9ee547ee
--- /dev/null
+++ b/src/mame/includes/mips.h
@@ -0,0 +1,100 @@
+// license:BSD-3-Clause
+// copyright-holders:Patrick Mackinlay
+
+#ifndef MAME_INCLUDES_MIPS_H
+#define MAME_INCLUDES_MIPS_H
+
+#pragma once
+
+// processors and memory
+#include "cpu/mips/r3000.h"
+#include "cpu/nec/v53.h"
+#include "machine/ram.h"
+
+// i/o devices
+#include "machine/am79c90.h"
+#include "machine/at_keybc.h"
+#include "machine/mc146818.h"
+#include "machine/ncr5390.h"
+#include "machine/upd765.h"
+#include "machine/wd33c93.h"
+#include "machine/z80scc.h"
+
+// busses and connectors
+#include "bus/pc_kbd/pc_kbdc.h"
+#include "bus/pc_kbd/keyboards.h"
+#include "bus/rs232/rs232.h"
+
+// video
+#include "screen.h"
+#include "video/bt45x.h"
+
+#include "formats/pc_dsk.h"
+
+class rx2030_state : public driver_device
+{
+public:
+ rx2030_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "cpu")
+ , m_iop(*this, "iop")
+ , m_ram(*this, "ram")
+ , m_rtc(*this, "rtc")
+ , m_kbdc(*this, "kbdc")
+ , m_kbd(*this, "kbd")
+ , m_scc(*this, "scc")
+ , m_tty(*this, "tty%u", 0U)
+ , m_fdc(*this, "fdc")
+ , m_scsi(*this, "scsi")
+ , m_net(*this, "net")
+ , m_screen(*this, "screen")
+ , m_ramdac(*this, "ramdac")
+ , m_vram(*this, "vram")
+ {
+ }
+
+ // machine config
+ void rx2030(machine_config &config);
+ void rs2030(machine_config &config);
+ void rc2030(machine_config &config);
+
+ void rx2030_init();
+
+protected:
+ // driver_device overrides
+ virtual void machine_start() override;
+ virtual void machine_reset() override;
+
+ // address maps
+ void cpu_map(address_map &map);
+ void iop_program_map(address_map &map);
+ void iop_io_map(address_map &map);
+
+ u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+private:
+ // processors and memory
+ required_device<r2000_device> m_maincpu;
+ required_device<v53_device> m_iop;
+ required_device<ram_device> m_ram;
+
+ // i/o devices
+ required_device<mc146818_device> m_rtc;
+ required_device<at_keyboard_controller_device> m_kbdc;
+ required_device<pc_kbdc_slot_device> m_kbd;
+ required_device<z80scc_device> m_scc;
+ required_device_array<rs232_port_device, 2> m_tty;
+ required_device<wd37c65c_device> m_fdc;
+ required_device<wd33c93_device> m_scsi;
+ required_device<am7990_device> m_net;
+
+ // optional video board
+ optional_device<screen_device> m_screen;
+ optional_device<bt458_device> m_ramdac;
+ optional_device<ram_device> m_vram;
+
+ // machine state
+ u16 m_mmu[32];
+};
+
+#endif // MAME_INCLUDES_MIPS_H
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index ca509ea0120..6163d07d120 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -21419,6 +21419,10 @@ minitel2 //
@source:minivadr.cpp
minivadr // D26 cabinet test board
+@source:mips.cpp
+rc2030 // MIPS RC2030
+rs2030 // MIPS RS2030
+
@source:mirage.cpp
mirage // (c) 1994 Mitchell
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index b60d98d4c4d..dc33a8547e5 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -425,6 +425,7 @@ minicom.cpp
miniforce.cpp
miniframe.cpp
minitel_2_rpic.cpp
+mips.cpp
mits680b.cpp
mk1.cpp
mk14.cpp