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diff --git a/src/mame/drivers/jazz.cpp b/src/mame/drivers/jazz.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Patrick Mackinlay
-
-/*
- * An emulation of systems based on the Jazz computer architecture, originally
- * developed by Microsoft. Specific systems which implemented this architecture
- * include the MIPS Magnum/Millenium 4000 and Olivetti M700-10.
- *
- * References:
- *
- * https://www.linux-mips.org/wiki/Jazz
- * http://gunkies.org/wiki/MIPS_Magnum
- * http://www.sensi.org/~alec/mips/mips-history.html
- *
- * TODO
- * - make it boot Windows NT
- * - big-endian support for RISC/os
- * - EISA bus and slots
- * - slotify and improve graphics board
- *
- * Unconfirmed parts lists from ARCSystem reference design (which appears to
- * be very similar or identical to the Jazz system) taken from:
- * https://www.linux-mips.org/archives/riscy/1993-12/msg00013.html
- *
- * Ref Part Function
- *
- * System board:
- *
- * Dallas DS1287 RTC and NVRAM
- * Dallas DS1225Y 8k non-volatile SRAM
- * WD16C552 Dual serial and parallel port controller
- * Intel N82077A Floppy drive controller
- * National DP83932BFV Ethernet controller
- * Intel 82358 EISA Bus Controller
- * Intel 82357 EISA Integrated System Peripheral (ISP)
- * Intel 82352 x 2 EISA Bus Buffer (EBB)
- * Emulex FAS216 SCSI controller
- * 27C01 128k EPROM
- * 28F020 256k flash memory
- * NEC μPD31432 ARC address path ASIC
- * NEC μPD31431 x 2 ARC data path ASIC
- * NEC μPD30400 R4000PC/50 CPU
- *
- * Audio board:
- *
- * Crystal CS4215 Audio codec
- * Altera FPGA x 4 Audio DMA
- *
- * Video board:
- *
- * 27C010 128k EPROM
- * IMS G364-11S Video controller
- * NEC μPD42274V-80 x 16 256kx4 VRAM (2MiB)
- */
-
-#include "emu.h"
-
-#include "includes/jazz.h"
-
-#include "debugger.h"
-
-#define VERBOSE 0
-#include "logmacro.h"
-
-void jazz_state::machine_start()
-{
-}
-
-void jazz_state::machine_reset()
-{
- // HACK: make sure the RTC is running
- m_rtc->write_direct(0x0a, 0x20);
-}
-
-void jazz_state::init_common()
-{
- // map the configured ram and vram
- m_cpu->space(0).install_ram(0x00000000, 0x00000000 | m_ram->mask(), m_ram->pointer());
- // FIXME: video ram must be written in emulated cpu order
- m_cpu->space(0).install_ram(0x40000000, 0x40000000 | m_vram->mask(), m_vram->pointer());
-}
-
-void jazz_state::jazz_common_map(address_map &map)
-{
- map(0x1fc00000, 0x1fc3ffff).r(m_flash, FUNC(amd_28f020_device::read));
-
- // NOTE: defaults to console on serial1 if no video rom found
- map(0x60000000, 0x6000013f).lr8(
- [] (offs_t offset)
- {
- /*
- * Board_Identifier, PROM_Stride, PROM_Width, PROM_Size
- * 0=JazzVideoG300, 1=JazzVideoG364, 2=JazzVideoVxl, 0x10=MipsVideoG364, 0x11=MaximumJazzVideo (jazzvideog364 osc period == 123077, MipsVideoG364 = 200000)
- * Test_Byte_0 - Test_Byte_3
- * VideoMemorySize, VideoControlSize
- * CodeOffset, CodeSize
- * ID string
- */
- /*
- static u8 const jazz_g364[] =
- {
- 0x01, 0x08, 0x01, 0x20, 'J', 'a', 'z', 'z',
- 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x20, 0x00,
- 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
- 'J', 'a', 'z', 'z', ' ', 'G', '3', '6',
- '4', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
-
- static u8 const mips_g364[] =
- {
- 0x10, 0x08, 0x01, 0x20, 'J', 'a', 'z', 'z',
- 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x20, 0x00,
- 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
- 'M', 'i', 'p', 's', ' ', 'G', '3', '6',
- '4', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
- */
-
- // FIXME: this is the MIPS G364 with the PROM fields zeroed to
- // avoid a startup error, and should be replaced with the real
- // signature above when an actual PROM dump is located.
- static u8 const bogus_g364[] =
- {
- 0x10, 0x00, 0x00, 0x00, 'J', 'a', 'z', 'z',
- 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x20, 0x00,
- 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
- 'M', 'i', 'p', 's', ' ', 'G', '3', '6',
- '4', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
-
- return bogus_g364[offset];
- }, "bogus_g364_r").umask64(0xff);
-
- map(0x60080000, 0x60081fff).m(m_cvc, FUNC(g364_device::map));
- map(0x60180000, 0x60180007).lw32([this] (u32 data) { m_cvc->reset(); }, "g364_reset");
-
- map(0x80000000, 0x80000fff).m(m_mct_adr, FUNC(jazz_mct_adr_device::map));
-
- map(0x80001000, 0x800010ff).m(m_net, FUNC(dp83932c_device::map)).umask32(0x0000ffff);
- map(0x80002000, 0x8000200f).m(m_scsi, FUNC(ncr53c94_device::map));
- map(0x80003000, 0x8000300f).m(m_fdc, FUNC(n82077aa_device::map));
-
- // LE: only reads 4000
- // BE: read 400d, write 400d, write 400c
- map(0x80004000, 0x8000400f).lrw8(
- NAME([this] (offs_t offset) { return m_rtc->read(1); }),
- NAME([this] (offs_t offset, u8 data) { m_rtc->write(1, data); })).umask64(0xff);
- map(0x80005000, 0x80005007).rw(m_kbdc, FUNC(ps2_keyboard_controller_device::data_r), FUNC(ps2_keyboard_controller_device::data_w)).umask64(0x00ff);
- map(0x80005000, 0x80005007).rw(m_kbdc, FUNC(ps2_keyboard_controller_device::status_r), FUNC(ps2_keyboard_controller_device::command_w)).umask64(0xff00);
- map(0x80006000, 0x80006007).rw(m_ace[0], FUNC(ns16550_device::ins8250_r), FUNC(ns16550_device::ins8250_w));
- map(0x80007000, 0x80007007).rw(m_ace[1], FUNC(ns16550_device::ins8250_r), FUNC(ns16550_device::ins8250_w));
- map(0x80008000, 0x80008007).rw(m_lpt, FUNC(pc_lpt_device::read), FUNC(pc_lpt_device::write)).umask64(0xffffffff);
- map(0x80009000, 0x8000afff).ram().share("nvram"); // 9000-9fff unprotected/a000-afff protected?
- map(0x8000b000, 0x8000b007).lr8(
- [] (offs_t offset)
- {
- // mac address and checksum
- static u8 const mac[] = { 0x00, 0x00, 0x6b, 0x12, 0x34, 0x56, 0x00, 0xf7 };
-
- return mac[offset];
- },
- "mac");
- // 3 4k pages of nvram: read/write, protected, read-only
- // last page holds ethernet mac and checksum in bytes 0-7
-
- //map(0x8000c000, 0x8000cfff) // sound
- //map(0x8000d000, 0x8000dfff).noprw(); // dummy dma device?
- map(0x8000d600, 0x8000d607).nopw();
-
- map(0x8000f000, 0x8000f007).lrw8(
- NAME([this] () { return m_led; }),
- NAME([this] (u8 data)
- {
- logerror("led 0x%02x (%s)\n", data, machine().describe_context());
- m_led = data;
- })).umask64(0xff);
-
- // lots of byte data written to 800
- //map(0x800e0000, 0x800fffff).m() // dram config
-
- map(0x90000000, 0x90ffffff).m(m_isp, FUNC(i82357_device::map));
-
- //map(0x91000000, 0x91ffffff).m();
- //map(0x92000000, 0x92ffffff).m(); // EISA I/O ports?
- //map(0x93000000, 0x93ffffff).m(); // EISA memory
-
- map(0xf0000000, 0xf0000007).r(m_mct_adr, FUNC(jazz_mct_adr_device::isr_r)).umask64(0xffff);
- map(0xf0000000, 0xf0000007).rw(m_mct_adr, FUNC(jazz_mct_adr_device::imr_r), FUNC(jazz_mct_adr_device::imr_w)).umask64(0xffff0000);
-
- map(0xfff00000, 0xfff3ffff).r(m_flash, FUNC(amd_28f020_device::read)); // mirror?
-}
-
-static void jazz_scsi_devices(device_slot_interface &device)
-{
- device.option_add("harddisk", NSCSI_HARDDISK);
- device.option_add("cdrom", NSCSI_CDROM);
-}
-
-FLOPPY_FORMATS_MEMBER(jazz_state::floppy_formats)
- FLOPPY_PC_FORMAT
-FLOPPY_FORMATS_END
-
-void jazz_state::jazz(machine_config &config)
-{
- // FIXME: slow the cpu clock to get past session manager bugcheck
- R4000(config, m_cpu, 50_MHz_XTAL / 5);
- m_cpu->set_addrmap(0, &jazz_state::jazz_common_map);
-
- RAM(config, m_ram);
- m_ram->set_default_size("16M");
- m_ram->set_extra_options("32M,64M,128M,256M");
- m_ram->set_default_value(0);
-
- RAM(config, m_vram);
- m_vram->set_default_size("2M");
- m_vram->set_default_value(0);
-
- // local bus dma, timer and interrupt controller
- JAZZ_MCT_ADR(config, m_mct_adr, 0);
- m_mct_adr->set_bus(m_cpu, 0);
- m_mct_adr->out_int_dma_cb().set_inputline(m_cpu, INPUT_LINE_IRQ0);
- m_mct_adr->out_int_device_cb().set_inputline(m_cpu, INPUT_LINE_IRQ1);
- m_mct_adr->out_int_timer_cb().set_inputline(m_cpu, INPUT_LINE_IRQ4);
- m_mct_adr->eisa_iack_cb().set(m_isp, FUNC(i82357_device::eisa_irq_ack));
-
- // scsi bus and devices
- NSCSI_BUS(config, m_scsibus);
- NSCSI_CONNECTOR(config, "scsi:0", jazz_scsi_devices, "harddisk");
- NSCSI_CONNECTOR(config, "scsi:1", jazz_scsi_devices, nullptr);
- NSCSI_CONNECTOR(config, "scsi:2", jazz_scsi_devices, nullptr);
- NSCSI_CONNECTOR(config, "scsi:3", jazz_scsi_devices, nullptr);
- NSCSI_CONNECTOR(config, "scsi:4", jazz_scsi_devices, nullptr);
- NSCSI_CONNECTOR(config, "scsi:5", jazz_scsi_devices, nullptr);
- NSCSI_CONNECTOR(config, "scsi:6", jazz_scsi_devices, "cdrom");
-
- // scsi host adapter
- NSCSI_CONNECTOR(config, "scsi:7").option_set("ncr53c94", NCR53C94).clock(24_MHz_XTAL).machine_config(
- [this](device_t *device)
- {
- ncr53c94_device &adapter = downcast<ncr53c94_device &>(*device);
-
- adapter.irq_handler_cb().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<5>));;
- adapter.drq_handler_cb().set(m_mct_adr, FUNC(jazz_mct_adr_device::drq<0>));
-
- subdevice<jazz_mct_adr_device>(":mct_adr")->dma_r_cb<0>().set(adapter, FUNC(ncr53c94_device::dma_r));
- subdevice<jazz_mct_adr_device>(":mct_adr")->dma_w_cb<0>().set(adapter, FUNC(ncr53c94_device::dma_w));
- });
-
- // floppy controller and drive
- N82077AA(config, m_fdc, 24_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, jazz_state::floppy_formats).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));
-
- MC146818(config, m_rtc, 32.768_kHz_XTAL);
- m_rtc->set_epoch(1980);
-
- NVRAM(config, m_nvram, nvram_device::DEFAULT_ALL_0);
-
- AMD_28F020(config, m_flash);
-
- // pc keyboard connector
- pc_kbdc_device &kbd_con(PC_KBDC(config, "kbd_con", 0));
- kbd_con.out_clock_cb().set(m_kbdc, FUNC(ps2_keyboard_controller_device::kbd_clk_w));
- kbd_con.out_data_cb().set(m_kbdc, FUNC(ps2_keyboard_controller_device::kbd_data_w));
-
- // keyboard port
- pc_kbdc_slot_device &kbd(PC_KBDC_SLOT(config, "kbd", pc_at_keyboards, STR_KBD_MICROSOFT_NATURAL));
- kbd.set_pc_kbdc_slot(&kbd_con);
-
- // auxiliary connector
- pc_kbdc_device &aux_con(PC_KBDC(config, "aux_con", 0));
- aux_con.out_clock_cb().set(m_kbdc, FUNC(ps2_keyboard_controller_device::aux_clk_w));
- aux_con.out_data_cb().set(m_kbdc, FUNC(ps2_keyboard_controller_device::aux_data_w));
-
- // auxiliary port
- pc_kbdc_slot_device &aux(PC_KBDC_SLOT(config, "aux", ps2_mice, STR_HLE_PS2_MOUSE));
- aux.set_pc_kbdc_slot(&aux_con);
-
- // keyboard controller
- PS2_KEYBOARD_CONTROLLER(config, m_kbdc, 12_MHz_XTAL);
- // FIXME: reset is probably routed through the MCT-ADR
- m_kbdc->hot_res().set([this](int state) { logerror("reset %d\n", state); });
- m_kbdc->kbd_clk().set(kbd_con, FUNC(pc_kbdc_device::clock_write_from_mb));
- m_kbdc->kbd_data().set(kbd_con, FUNC(pc_kbdc_device::data_write_from_mb));
- m_kbdc->kbd_irq().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<6>));
- m_kbdc->aux_clk().set(aux_con, FUNC(pc_kbdc_device::clock_write_from_mb));
- m_kbdc->aux_data().set(aux_con, FUNC(pc_kbdc_device::data_write_from_mb));
- m_kbdc->aux_irq().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<7>));
-
- SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
- m_screen->set_raw(78643200, 1280, 0, 1280, 1024, 0, 1024);
- m_screen->set_screen_update("g364", FUNC(g364_device::screen_update));
- m_screen->screen_vblank().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<3>)); // maybe?
-
- G364(config, m_cvc, 5_MHz_XTAL); // FIXME: guessed clock
- m_cvc->set_screen(m_screen);
- m_cvc->set_vram(m_vram);
-
- // WD16C552 (two 16550 + pc_lpt)
- NS16550(config, m_ace[0], 4233600);
- rs232_port_device &serial0(RS232_PORT(config, "serial0", default_rs232_devices, nullptr));
-
- m_ace[0]->out_dtr_callback().set(serial0, FUNC(rs232_port_device::write_dtr));
- m_ace[0]->out_rts_callback().set(serial0, FUNC(rs232_port_device::write_rts));
- m_ace[0]->out_tx_callback().set(serial0, FUNC(rs232_port_device::write_txd));
- m_ace[0]->out_int_callback().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<8>));
-
- serial0.cts_handler().set(m_ace[0], FUNC(ns16550_device::cts_w));
- serial0.dcd_handler().set(m_ace[0], FUNC(ns16550_device::dcd_w));
- serial0.dsr_handler().set(m_ace[0], FUNC(ns16550_device::dsr_w));
- serial0.ri_handler().set(m_ace[0], FUNC(ns16550_device::ri_w));
- serial0.rxd_handler().set(m_ace[0], FUNC(ns16550_device::rx_w));
-
- NS16550(config, m_ace[1], 8_MHz_XTAL);
- rs232_port_device &serial1(RS232_PORT(config, "serial1", default_rs232_devices, nullptr));
-
- m_ace[1]->out_dtr_callback().set(serial1, FUNC(rs232_port_device::write_dtr));
- m_ace[1]->out_rts_callback().set(serial1, FUNC(rs232_port_device::write_rts));
- m_ace[1]->out_tx_callback().set(serial1, FUNC(rs232_port_device::write_txd));
- m_ace[1]->out_int_callback().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<9>));
-
- serial1.cts_handler().set(m_ace[1], FUNC(ns16550_device::cts_w));
- serial1.dcd_handler().set(m_ace[1], FUNC(ns16550_device::dcd_w));
- serial1.dsr_handler().set(m_ace[1], FUNC(ns16550_device::dsr_w));
- serial1.ri_handler().set(m_ace[1], FUNC(ns16550_device::ri_w));
- serial1.rxd_handler().set(m_ace[1], FUNC(ns16550_device::rx_w));
-
- PC_LPT(config, m_lpt, 0);
- m_lpt->irq_handler().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<0>));
-
- // TODO: sound, interrupt 2, drq 2(l) & 3(r)
-
- // buzzer
- SPEAKER(config, "mono").front_center();
- SPEAKER_SOUND(config, m_buzzer);
- m_buzzer->add_route(ALL_OUTPUTS, "mono", 0.50);
-
- DP83932C(config, m_net, 20_MHz_XTAL);
- m_net->out_int_cb().set(m_mct_adr, FUNC(jazz_mct_adr_device::irq<4>));
- m_net->set_ram(RAM_TAG);
-
- I82357(config, m_isp, 14.318181_MHz_XTAL);
- m_isp->out_rtc_cb().set(m_rtc, FUNC(mc146818_device::write));
- m_isp->out_int_cb().set_inputline(m_cpu, INPUT_LINE_IRQ2);
- m_isp->out_nmi_cb().set_inputline(m_cpu, INPUT_LINE_IRQ3);
- m_isp->out_spkr_cb().set(m_buzzer, FUNC(speaker_sound_device::level_w));
-
- // TODO: 4 EISA slots
-}
-
-void jazz_state::mmr4000be(machine_config &config)
-{
- jazz(config);
-
- m_cpu->set_config(r4000_device::CONFIG_BE, r4000_device::CONFIG_BE);
-}
-
-void jazz_state::mmr4000le(machine_config &config)
-{
- jazz(config);
-
- m_cpu->set_config(0, r4000_device::CONFIG_BE);
-}
-
-ROM_START(mmr4000be)
- ROM_REGION64_BE(0x40000, "flash", 0)
- ROM_SYSTEM_BIOS(0, "riscos", "R4000 RISC/os PROM")
- ROMX_LOAD("riscos.bin", 0x00000, 0x40000, CRC(cea6bc8f) SHA1(3e47b4ad5d1a0c7aac649e6aef3df1bf86fc938b), ROM_BIOS(0))
-ROM_END
-
-ROM_START(mmr4000le)
- ROM_REGION64_LE(0x40000, "flash", 0)
- ROM_SYSTEM_BIOS(0, "ntprom", "R4000 Windows NT PROM")
- ROMX_LOAD("ntprom.bin", 0x00000, 0x40000, CRC(d91018d7) SHA1(316de17820192c89b8ee6d9936ab8364a739ca53), ROM_BIOS(0))
-ROM_END
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1992, mmr4000be, 0, 0, mmr4000be, 0, jazz_state, init_common, "MIPS", "Magnum R4000 (big)", MACHINE_IS_SKELETON)
-COMP( 1992, mmr4000le, 0, 0, mmr4000le, 0, jazz_state, init_common, "MIPS", "Magnum R4000 (little)", MACHINE_IS_SKELETON)