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Diffstat (limited to 'src/mame/drivers/mips.cpp')
-rw-r--r-- | src/mame/drivers/mips.cpp | 1050 |
1 files changed, 0 insertions, 1050 deletions
diff --git a/src/mame/drivers/mips.cpp b/src/mame/drivers/mips.cpp deleted file mode 100644 index d6766ac8499..00000000000 --- a/src/mame/drivers/mips.cpp +++ /dev/null @@ -1,1050 +0,0 @@ -// 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: - * - * Model Board CPU Clock Slots Disk Package Other - * M/500 R2300 R2000 5MHz VME ESDI - * M/800 R2600 R2000 8MHz VME ESDI - * M/1000 R2800 R2000 10MHz VME ESDI - * M/120-3 R2400 R2000 12.5MHz PC-AT SCSI Deskside aka Intrepid - * M/120-5 R2400 R2000 16MHz PC-AT SCSI Deskside - * M/180 R2400 - * M/2000-6 R3200 R3000 20MHz VMEx13 SMD Rack Cabinet - * M/2000-8 R3200 R3000 25MHz VMEx13 SMD Rack Cabinet - * M/2000-? RB3125 R3000 33MHz - * RC2030 I2000 R2000 16MHz SCSI Desktop aka M/12, Jupiter - * RS2030 I2000 R2000 16MHz SCSI Desktop aka M/12, Jupiter - * RC3230 R3030 R3000 25MHz PC-ATx1 SCSI Desktop aka M/20, Pizazz - * RS3230 R3030 R3000 25MHz PC-ATx1 SCSI Desktop aka M/20, Pizazz, Magnum 3000 - * RC3240 R3000 25MHz 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 RB3133 R3000 33MHz VME SCSI Pedestal - * RC3370 RB3133 - * RC6260 R6300 R6000 66MHz VME SCSI Pedestal - * RC6280 R6300 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 - * http://www.prumpleffer.de/~miod/machineroom/machines/mips/magnum/index.html - * https://web.archive.org/web/20140518203135/http://no-l.org/pages/riscos.html - * - * TODO (rx3230) - * - verify/complete address maps - * - keyboard controller and interrupts - * - isa slot and colour graphics board - * - idprom - * - * Ref Part Function - * - * I2000 system board: - * - * MIPS R2000A Main CPU - * PACEMIPS PR2010A Floating point unit - * 33.3330 MHz crystal CPU clock - * DL15CC200 - * DDU7F-25 Delay line (10 taps @ 2.5ns per tap) - * VLSI VL85C30-08PC Serial port controller - * ST Z8038AB1 FIO Parallel port controller - * 1.8432 MHz crystal Serial clock - * NEC D70216L-10 I/O processor - * Adaptec AIC-6250DL SCSI controller - * AMD AM7990DCB/80 Ethernet controller - * 20 MHz crystal - * 2VP5U9 DC/DC converter (Ethernet transceiver power?) - * WDC WD37C65BJW Floppy controller - * Intel P8742AH Keyboard controller - * Dallas DS1287 RTC and NVRAM - * buzzer Connected to keyboard controller? - * - * P4C164-25PC Cache RAM? (8Kx8, total 112KiB) - * U?-U? 14 parts - * - * 27C512 64K EPROM V50 IPL (64Kx8, total 256KiB) - * U139-U142 4 parts - * - * M5M4464 V50 RAM (64Kx4, total 128KiB) - * U164-U167 4 parts - * - * - * Jupiter video board: - * - * Idt75C458 256x24 Color RAMDAC - * Bt438KC Clock generator - * 108.180 MHz crystal - * - * D41264V-12 Video RAM (64Kx4, total 1280KiB) - * U?-U? 40 parts - * - * - * R3030 system board (Assy. No. 03-00082- rev J): - * - * N2B1 IDT 79R3000-25G CPU - * L6B1 IDT 79R3010L-25OJ FPU - * C3A2 50.0000 MHz crystal - * G2B8 MIPS 32-00039-000 RAMBO DMA/timer ASIC? - * H8B8 MIPS 32-00038-000 Cache control/write buffer ASIC? - * H8A3 MIPS 32-00038-000 Cache control/write buffer ASIC? - * E3H7 NCR 53C94 SCSI controller - * C410 Intel N82072 Floppy controller - * B510 Z85C3010VSC Serial controller - * C232 AMD AM7990JC/80 Ethernet controller - * AMD AM7992BDC Ethernet serial interface - * M48T02 RTC and NVRAM (labelled B6B93) - * MCS-48? Keyboard controller - * A7A7 DP8530V Clock generator - * AM27C1024 IPL EPROM (128KiB, MSW) - * 50-314-003 - * 3230 RIGHT - * CKSM / B098BB9 - * TMS27C210 IPL EPROM (128KiB, LSW) - * 50-314-003 - * 3230 LEFT - * CKSM / 045A - * - * - * Colour graphics board (assy. no. 03-00087- rev D): - * - * UF4 Bt459KG110 256x24 Color RAMDAC - * UC4 Bt435KPJ Clock generator? - * OSC3 108.1800 MHz crystal Pixel clock - * - * ? Video RAM (total 1280KiB?) - * UJ11-UM11 8 parts - * UJ13-UM13 8 parts - */ -/* - * Rx2030 WIP - * - * - keyboard reset failure - * - * V50 internal peripherals: - * base = 0xfe00 - * serial (sula): fe00 - * timer (tula): fe08 - * int (iula): fe10 - * dma (dula): fe20 - * - * V50 IPL diagnostic routines - * NVRAM f8dc4 - * Ethernet ID f8b58 - * Parallel f8c5c - * Keyboard f4cbc - * SCC ec0fc - * Floppy ee3ea - * SCSI f426e - * LANCE f8f68 - * - * V50 interrupts: - * intp1 <- SCU - * intp2 <- CPU interface - * intp3 <- SCC - * intp4 <- FIO - * intp5 <- LANCE - * intp6 <- floppy? - * intp7 <- SCSI - * - * R2000 interrupts: - * int0 <- ? - * int1 <- iop keyboard - * int2 <- ? - * int4 <- iop clock - * int5 <- vblank - */ -/* - * Rx3230 WIP - * - * status: boots RISC/os from network, panics during installation - * - * R3000 interrupts - * 0 <- lance, scc, slot, keyboard - * 1 <- scsi - * 2 <- timer - * 3 <- fpu - * 4 <- fdc - * 5 <- parity error - * - * Keyboard controller output port - * 4: select 1M/4M SIMMs? - * - * PON failures - * kseg0/kseg1 cache - * instruction cache functionality (skipped) - * instruction cache mats+ (skipped) - * data cache block refill - * instruction cache block refill (skipped) - * scc - requires z80scc zero count interrupt - * tod - loop <1 second real time? - * color frame buffer (skipped) - * dma controller chip - * scsi controller chip - * tlb (skipped) - all pass except tlb_n (requires cpu data cache) - * exception (skipped) - * parity - * dma parity (skipped) - * at serial board (skipped) - */ - -#include "emu.h" - -#include "includes/mips.h" - -#include "imagedev/floppy.h" - -#include "debugger.h" - -#define LOG_GENERAL (1U << 0) -#define LOG_MMU (1U << 1) -#define LOG_IOCB (1U << 2) - -#define VERBOSE 0 -#include "logmacro.h" - -namespace { - -FLOPPY_FORMATS_MEMBER(mips_floppy_formats) - FLOPPY_PC_FORMAT -FLOPPY_FORMATS_END - -} // anonymous namespace - -void rx2030_state::machine_start() -{ - save_item(NAME(m_mmu)); - save_item(NAME(m_iop_interface)); -} - -void rx2030_state::machine_reset() -{ - m_cpu->set_input_line(INPUT_LINE_RESET, 1); -} - -void rx2030_state::rx2030_init() -{ - m_iop_interface = IOP_NERR | DBG_ABSENT; - - // map the configured ram and vram - m_cpu->space(0).install_ram(0x00000000, m_ram->mask(), m_ram->pointer()); - - // page zero of prom space is mapped to ram page zero - m_cpu->space(0).install_rom(0x1fc00000, 0x1fc00fff, m_ram->pointer()); - - if (!m_vram) - m_iop_interface |= VID_ABSENT; - - /* - * HACK: the prom bfs code broadcasts to the network address (i.e. the - * host portion is "all zeroes"), instead of to the standard "all ones". - * This makes it very difficult to receive the bfs request in a modern host - * OS; the patch changes the code to broadcast to the standard broadcast - * address instead. - * - * Technique is identical to that described for the rx3230 below. - */ - switch (system_bios()) - { - case 1: - m_rom[0x1ab68 >> 1] = 0x0624; - m_rom[0x1ab6a >> 1] = 0xffff; - break; - - case 2: - m_rom[0x1a7f8 >> 1] = 0x0624; - m_rom[0x1a7fa >> 1] = 0xffff; - break; - } -} - -u16 rx2030_state::mmu_r(offs_t offset, u16 mem_mask) -{ - offs_t const address = (m_mmu[(offset >> 11) & 0x1f] << 12) | ((offset << 1) & 0xfff); - - u16 const data = (m_ram->read(BYTE4_XOR_BE(address + 1)) << 8) | m_ram->read(BYTE4_XOR_BE(address + 0)); - - LOGMASKED(LOG_MMU, "mmu_r offset 0x%06x reg %d page 0x%04x mapped 0x%06x data 0x%04x\n", - (offset << 1), (offset >> 11) & 0x1f, m_mmu[(offset >> 11) & 0x1f], address, data); - - return data; -} - -void rx2030_state::mmu_w(offs_t offset, u16 data, u16 mem_mask) -{ - offs_t const address = (m_mmu[(offset >> 11) & 0x1f] << 12) | ((offset << 1) & 0xfff); - - LOGMASKED(LOG_MMU, "mmu_w offset 0x%06x reg %d page 0x%04x mapped 0x%06x data 0x%04x (%s)\n", - (offset << 1), (offset >> 11) & 0x1f, m_mmu[(offset >> 11) & 0x1f], address, data, machine().describe_context()); - - if (ACCESSING_BITS_0_7) - m_ram->write(BYTE4_XOR_BE(address + 0), data); - - if (ACCESSING_BITS_8_15) - m_ram->write(BYTE4_XOR_BE(address + 1), data >> 8); -} - -void rx2030_state::iop_program_map(address_map &map) -{ - // 00000:1ffff 128k ram (64kx4, 4 parts) - // 20000:3ffff 128k shared (32x4k mapped pages, bits 0-11 offset, bits 12-16 mmu register) - // 80000:fffff 512k eprom (256k x 2 copies) - - map(0x00000, 0x1ffff).ram(); - map(0x20000, 0x3ffff).rw(FUNC(rx2030_state::mmu_r), FUNC(rx2030_state::mmu_w)); - - map(0x80000, 0xbffff).rom().region("rx2030", 0).mirror(0x40000); -} - -void rx2030_state::iop_io_map(address_map &map) -{ - map(0x0000, 0x003f).lrw16( - NAME([this] (offs_t offset, u16 mem_mask) { return m_mmu[offset]; }), - NAME([this] (offs_t offset, u16 data, u16 mem_mask) { m_mmu[offset] = data; })); - - map(0x0040, 0x0043).m(m_fdc, FUNC(wd37c65c_device::map)).umask16(0xff); - map(0x0044, 0x0045).w(m_fdc, FUNC(wd37c65c_device::dor_w)).umask16(0xff); - map(0x0048, 0x0049).w(m_fdc, FUNC(wd37c65c_device::ccr_w)).umask16(0xff); - //map(0x004c, 0x004d).r(m_fdc, FUNC(?)).umask16(0xff); - - map(0x0080, 0x0083).rw(m_scsi, FUNC(aic6250_device::read), FUNC(aic6250_device::write)).umask16(0xff); - - /* - * HACK: Substitute the keyboard "set defaults" command for the "reset" - * command to avoid an issue where the keyboard is still busy performing - * the reset and does not accept commands being sent to it to change the - * scan code set. Possibly caused by imperfect V50 timing and/or memory - * wait states that make the IOP code execute more slowly than emulated. - */ - map(0x00c0, 0x00c1).lrw8(NAME([this] () { return m_kbdc->data_r(); }), NAME([this] (u8 data) { m_kbdc->data_w(data == 0xff ? 0xf6 : data); })).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(0x0100, 0x0107).rw(m_scc, FUNC(z80scc_device::ab_dc_r), FUNC(z80scc_device::ab_dc_w)).umask16(0xff); - - map(0x0140, 0x0143).rw(m_net, FUNC(am7990_device::regs_r), FUNC(am7990_device::regs_w)); - - map(0x0180, 0x018b).lr8( - [] (offs_t offset) - { - // Ethernet MAC address (LSB first) - static u8 const mac[] = { 0x00, 0x00, 0x6b, 0x12, 0x34, 0x56 }; - - return mac[offset]; - }, "mac_r").umask16(0xff); - - // iop tests bits 0x04, 0x10 and 0x20 - map(0x01c0, 0x01c1).lr8(NAME([this] () { return m_iop_interface; })); // maybe? - - map(0x0200, 0x0201).rw(m_fio, FUNC(z8038_device::fifo_r<1>), FUNC(z8038_device::fifo_w<1>)).umask16(0xff); - map(0x0202, 0x0203).rw(m_fio, FUNC(z8038_device::reg_r<1>), FUNC(z8038_device::reg_w<1>)).umask16(0xff); - - map(0x0240, 0x0241).lw8(NAME([this] (u8 data) { m_rtc->write(0, data); })).umask16(0xff00); - map(0x0280, 0x0281).lrw8( - NAME([this] () { return m_rtc->read(1); }), - NAME([this] (u8 data) { m_rtc->write(1, data); })).umask16(0xff00); - - map(0x02c0, 0x2c1).lw8([this](u8 data) - { - switch (data) - { - case 0: LOG("cpu interrupt 0 asserted\n"); m_cpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE); break; - case 1: LOG("cpu interrupt 1 asserted\n"); m_cpu->set_input_line(INPUT_LINE_IRQ1, ASSERT_LINE); break; - case 2: LOG("cpu interrupt 2 asserted\n"); m_cpu->set_input_line(INPUT_LINE_IRQ2, ASSERT_LINE); break; - case 3: LOG("cpu interrupt 4 asserted\n"); m_cpu->set_input_line(INPUT_LINE_IRQ4, ASSERT_LINE); break; - - case 4: - if (m_cpu->suspended()) - { - LOG("cpu reset released\n"); - m_cpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE); - } - else - m_iop->set_input_line(INPUT_LINE_IRQ2, CLEAR_LINE); - m_iop_interface |= IOP_IACK; - m_iop_interface &= ~IOP_IRQ; - break; - - default: - LOG("cpu interface command 0x%02x\n", data); - break; - - //case 5: break; // unknown - //case 6: - //case 7: - // something to do with shared memory access? - //break; - } - }, "cpu_interface_w").umask16(0xff); - - map(0x0380, 0x0381).lw8(NAME([this](u8 data) { logerror("led_w 0x%02x\n", data); })).umask16(0xff00); -} - -void rx2030_state::rx2030_map(address_map &map) -{ - map(0x02000000, 0x02000003).lrw8( - NAME([this]() { return m_iop_interface; }), - [this](u8 data) - { - switch (data) - { - case 0: LOG("cpu interrupt 0 cleared\n"); m_cpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE); break; - case 1: LOG("cpu interrupt 1 cleared\n"); m_cpu->set_input_line(INPUT_LINE_IRQ1, CLEAR_LINE); break; - case 2: LOG("cpu interrupt 2 cleared\n"); m_cpu->set_input_line(INPUT_LINE_IRQ2, CLEAR_LINE); break; - case 3: LOG("cpu interrupt 4 cleared\n"); m_cpu->set_input_line(INPUT_LINE_IRQ4, CLEAR_LINE); break; - break; - - case 4: - if (VERBOSE & LOG_IOCB) - { - static char const *const iop_commands[] = - { - "IOP", "UART0", "UART1", "NVRAM", "LED", "CLOCK", "TOD", "SCSI0", - "SCSI1", "SCSI2", "SCSI3", "SCSI4", "SCSI5", "SCSI6", "SCSI7", "FLOPPY0", - "FLOPPY1", "LANCE", "PP", "KYBD", "MOUSE", "BUZZER", "UNK22", "UNK23" - }; - static char const *const iop_lance[] = - { - "", "PROBE", "INIT", "STOP", "STRT", "RECV", "XMIT", "XMIT_DONE", - "STAT", "INIT_DONE", "RESET", "DBG_ON", "DBG_OFF", "MISS" - }; - - for (int iocb = 0; iocb < 24; iocb++) - { - // check if command semaphore set - if (m_ram->read(0x1000 + iocb * 16 + 10) || m_ram->read(0x1000 + iocb * 16 + 11)) - { - u32 const iocb_cmdparam = m_ram->read(0x1000 + iocb * 16 + 0) - | (m_ram->read(0x1000 + iocb * 16 + 1) << 8) - | (m_ram->read(0x1000 + iocb * 16 + 2) << 16) - | (m_ram->read(0x1000 + iocb * 16 + 3) << 24); - - u16 const iop_cmd = m_ram->read(0x1000 + iocb_cmdparam + 2) | (m_ram->read(0x1000 + iocb_cmdparam + 3) << 8); - - switch (iocb) - { - case 5: // clock - LOGMASKED(LOG_IOCB, "iocb %s command 0x%04x (%s)\n", - iop_commands[iocb], m_ram->read(0x1000 + iocb_cmdparam + 6) | (m_ram->read(0x1000 + iocb_cmdparam + 7) << 8), - machine().describe_context()); - break; - - case 17: // lance - LOGMASKED(LOG_IOCB, "iocb %s command %s (%s)\n", - iop_commands[iocb], iop_lance[iocb_cmdparam], - machine().describe_context()); - break; - - case 19: // keyboard - LOGMASKED(LOG_IOCB, "iocb %s command 0x%04x data 0x%02x (%s)\n", - iop_commands[iocb], iop_cmd, - m_ram->read(0x1000 + iocb_cmdparam + 7), - machine().describe_context()); - break; - - default: - LOGMASKED(LOG_IOCB, "iocb %s command 0x%04x (%s)\n", - iop_commands[iocb], iop_cmd, - machine().describe_context()); - break; - } - } - } - } - - // interrupt the iop - m_iop_interface &= ~IOP_IACK; - m_iop_interface |= IOP_IRQ; - m_iop->set_input_line(INPUT_LINE_IRQ2, ASSERT_LINE); - break; - - case 6: LOG("led on\n"); break; - case 7: LOG("led off\n"); break; - - default: - LOG("iop interface command 0x%02x (%s)\n", data, machine().describe_context()); - break; - } - }, "iop_interface_w" - ).umask32(0xff); -} - -void rx2030_state::rs2030_map(address_map &map) -{ - rx2030_map(map); - - // video hardware - map(0x01000000, 0x011fffff).ram().share("vram"); - map(0x01ffff00, 0x01ffffff).m(m_ramdac, FUNC(bt458_device::map)).umask32(0xff); - - //map(0x01ff1000, 0x01ff1001).w() // graphics register? - //map(0x01ff0080, 0x01ff0081).w() // graphics register? -} - -u16 rx2030_state::lance_r(offs_t offset, u16 mem_mask) -{ - u16 const data = - (m_ram->read(BYTE4_XOR_BE(offset + 1)) << 8) | - m_ram->read(BYTE4_XOR_BE(offset + 0)); - - return data; -} - -void rx2030_state::lance_w(offs_t offset, u16 data, u16 mem_mask) -{ - if (ACCESSING_BITS_0_7) - m_ram->write(BYTE4_XOR_BE(offset + 0), data); - - if (ACCESSING_BITS_8_15) - m_ram->write(BYTE4_XOR_BE(offset + 1), data >> 8); -} - -static void mips_scsi_devices(device_slot_interface &device) -{ - device.option_add("harddisk", NSCSI_HARDDISK); - device.option_add("cdrom", NSCSI_CDROM); -} - -void rx2030_state::rx2030(machine_config &config) -{ - R2000A(config, m_cpu, 33.333_MHz_XTAL / 2, 32768, 32768); - m_cpu->set_fpu(mips1_device_base::MIPS_R2010A); - m_cpu->in_brcond<0>().set([]() { return 1; }); // writeback complete - - V50(config, m_iop, 20_MHz_XTAL); - m_iop->set_addrmap(AS_PROGRAM, &rx2030_state::iop_program_map); - m_iop->set_addrmap(AS_IO, &rx2030_state::iop_io_map); - m_iop->out_handler<2>().set(m_buzzer, FUNC(speaker_sound_device::level_w)); - - // general dma configuration - m_iop->out_hreq_cb().set(m_iop, FUNC(v50_device::hack_w)); - m_iop->in_mem16r_cb().set(FUNC(rx2030_state::mmu_r)); - m_iop->out_mem16w_cb().set(FUNC(rx2030_state::mmu_w)); - - // dma channel 1: scsi - m_iop->in_io16r_cb<1>().set(m_scsi, FUNC(aic6250_device::dma16_r)); - m_iop->out_io16w_cb<1>().set(m_scsi, FUNC(aic6250_device::dma16_w)); - m_iop->out_dack_cb<1>().set(m_scsi, FUNC(aic6250_device::back_w)); - - 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); - - // parallel port - Z8038(config, m_fio, 0); - m_fio->out_int_cb<1>().set_inputline(m_iop, INPUT_LINE_IRQ4); - - // keyboard connector - pc_kbdc_device &kbd_con(PC_KBDC(config, "kbd_con", 0)); - kbd_con.out_clock_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_clk_w)); - kbd_con.out_data_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_data_w)); - - // keyboard port - PC_KBDC_SLOT(config, m_kbd, pc_at_keyboards, nullptr); - m_kbd->set_pc_kbdc_slot(&kbd_con); - - // keyboard controller - 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(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->set_default_bios_tag("award15"); - - SCC85C30(config, m_scc, 1.8432_MHz_XTAL); - m_scc->configure_channels(m_scc->clock(), m_scc->clock(), m_scc->clock(), m_scc->clock()); - m_scc->out_int_callback().set_inputline(m_iop, INPUT_LINE_IRQ3); - - // 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)); - - // 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)); - - // floppy controller and drive - WD37C65C(config, m_fdc, 16_MHz_XTAL); - m_fdc->intrq_wr_callback().set_inputline(m_iop, INPUT_LINE_IRQ6); - //m_fdc->drq_wr_callback().set(); - FLOPPY_CONNECTOR(config, "fdc:0", "35hd", FLOPPY_35_HD, true, mips_floppy_formats).enable_sound(false); - - // scsi bus and devices - NSCSI_BUS(config, m_scsibus); - NSCSI_CONNECTOR(config, "scsi:0", mips_scsi_devices, "harddisk"); - NSCSI_CONNECTOR(config, "scsi:1", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:2", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:3", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:4", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:5", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:6", mips_scsi_devices, nullptr); - - // scsi host adapter (clock assumed) - NSCSI_CONNECTOR(config, "scsi:7").option_set("aic6250", AIC6250).clock(10_MHz_XTAL).machine_config( - [this](device_t *device) - { - aic6250_device &adapter = downcast<aic6250_device &>(*device); - - adapter.int_cb().set_inputline(m_iop, INPUT_LINE_IRQ7).invert(); - adapter.breq_cb().set(m_iop, FUNC(v50_device::dreq_w<1>)); - }); - - // ethernet - AM7990(config, m_net); - m_net->intr_out().set_inputline(m_iop, INPUT_LINE_IRQ5).invert(); - m_net->dma_in().set(FUNC(rx2030_state::lance_r)); - m_net->dma_out().set(FUNC(rx2030_state::lance_w)); - - // buzzer - SPEAKER(config, "mono").front_center(); - SPEAKER_SOUND(config, m_buzzer); - m_buzzer->add_route(ALL_OUTPUTS, "mono", 0.50); -} - -void rx2030_state::rc2030(machine_config &config) -{ - rx2030(config); - - m_cpu->set_addrmap(AS_PROGRAM, &rx2030_state::rx2030_map); - - m_tty[1]->set_default_option("terminal"); -} - -void rx2030_state::rs2030(machine_config &config) -{ - rx2030(config); - - m_cpu->set_addrmap(AS_PROGRAM, &rx2030_state::rs2030_map); - - m_kbd->set_default_option(STR_KBD_MICROSOFT_NATURAL); - - // video hardware (1280x1024x8bpp @ 60Hz), 40 parts vram - u32 const 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_inputline(m_cpu, INPUT_LINE_IRQ5); - - BT458(config, m_ramdac, pixclock); -} - -u32 rx2030_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, rectangle const &cliprect) -{ - /* - * The graphics board has 1280KiB of video ram fitted, which is organised - * such that each 1280 pixel line occupies 2048 bytes of the address space; - * the remaining 768 addresses are presumably not mapped to anything. - */ - u32 *pixel_pointer = m_vram; - - 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 += 4) - { - u32 const pixel_data = *pixel_pointer++; - - bitmap.pix(y, x + 0) = m_ramdac->pen_color((pixel_data >> 24) & 0xff); - bitmap.pix(y, x + 1) = m_ramdac->pen_color((pixel_data >> 16) & 0xff); - bitmap.pix(y, x + 2) = m_ramdac->pen_color((pixel_data >> 8) & 0xff); - bitmap.pix(y, x + 3) = m_ramdac->pen_color((pixel_data >> 0) & 0xff); - } - - // compensate by 2048 - 1280 pixels per line - pixel_pointer += 0xc0; - } - - return 0; -} - -void rx3230_state::rx3230_map(address_map &map) -{ - map(0x00000000, 0x07ffffff).noprw(); // silence ram - - //map(0x10000000, 0x13ffffff); // restricted AT I/O space - //map(0x14000000, 0x17ffffff); // restricted AT memory space - - map(0x16080004, 0x16080007).nopr(); // silence graphics register - - map(0x18000000, 0x1800003f).m(m_scsi, FUNC(ncr53c94_device::map)).umask32(0xff); - map(0x19000000, 0x19000003).rw(m_kbdc, FUNC(at_keyboard_controller_device::data_r), FUNC(at_keyboard_controller_device::data_w)).umask32(0xff); - map(0x19000004, 0x19000007).rw(m_kbdc, FUNC(at_keyboard_controller_device::status_r), FUNC(at_keyboard_controller_device::command_w)).umask32(0xff); - map(0x19800000, 0x19800003).lr8(NAME([this]() { return m_int_reg; })).umask32(0xff); - map(0x1a000000, 0x1a000007).rw(m_net, FUNC(am7990_device::regs_r), FUNC(am7990_device::regs_w)).umask32(0xffff); - map(0x1b000000, 0x1b00001f).rw(m_scc, FUNC(z80scc_device::ab_dc_r), FUNC(z80scc_device::ab_dc_w)).umask32(0xff); // TODO: order? - - map(0x1c000000, 0x1c000fff).m(m_rambo, FUNC(mips_rambo_device::map)); - - map(0x1d000000, 0x1d001fff).rw(m_rtc, FUNC(m48t02_device::read), FUNC(m48t02_device::write)).umask32(0xff); - map(0x1e000000, 0x1e000007).m(m_fdc, FUNC(i82072_device::map)).umask32(0xff); - //map(0x1e800000, 0x1e800003).umask32(0xff); // fdc tc - - map(0x1fc00000, 0x1fc3ffff).rom().region("rx3230", 0); - map(0x1ff00000, 0x1ff3ffff).rom().region("rx3230", 0); // mirror -} - -void rx3230_state::rs3230_map(address_map &map) -{ - rx3230_map(map); - - map(0x10000000, 0x12ffffff).lrw32( - NAME([this](offs_t offset) - { - u32 const ram_offset = ((offset >> 13) * 0x500) + ((offset & 0x1ff) << 2); - - u32 const data = - u32(m_vram->read(ram_offset | 0)) << 24 | - u32(m_vram->read(ram_offset | 1)) << 16 | - u32(m_vram->read(ram_offset | 2)) << 8 | - u32(m_vram->read(ram_offset | 3)) << 0; - - return data; - }), - NAME([this](offs_t offset, u32 data) - { - u32 const ram_offset = ((offset >> 13) * 0x500) + ((offset & 0x1ff) << 2); - - m_vram->write(ram_offset | 0, data >> 24); - m_vram->write(ram_offset | 1, data >> 16); - m_vram->write(ram_offset | 2, data >> 8); - m_vram->write(ram_offset | 3, data >> 0); - })); - - map(0x14000000, 0x14000003).rw(m_ramdac, FUNC(bt459_device::address_lo_r), FUNC(bt459_device::address_lo_w)).umask32(0xff); - map(0x14080000, 0x14080003).rw(m_ramdac, FUNC(bt459_device::address_hi_r), FUNC(bt459_device::address_hi_w)).umask32(0xff); - map(0x14100000, 0x14100003).rw(m_ramdac, FUNC(bt459_device::register_r), FUNC(bt459_device::register_w)).umask32(0xff); - map(0x14180000, 0x14180003).rw(m_ramdac, FUNC(bt459_device::palette_r), FUNC(bt459_device::palette_w)).umask32(0xff); - - map(0x16080004, 0x16080007).lr8(NAME([this] () - { - u8 const data = (m_screen->vblank() ? GFX_V_BLANK : 0) | (m_screen->hblank() ? GFX_H_BLANK : 0); - - return data; - })).umask32(0xff); // also write 0 - - //map(0x16000004, 0x16000007).w(); // write 0x00000001 - //map(0x16100000, 0x16100003).w(); // write 0xffffffff -} - -void rx3230_state::machine_start() -{ - save_item(NAME(m_int_reg)); - save_item(NAME(m_int0_state)); - save_item(NAME(m_int1_state)); -} - -void rx3230_state::machine_reset() -{ - m_int_reg = INT_CLR; - m_int0_state = 1; - m_int1_state = 1; -} - -void rx3230_state::rx3230_init() -{ - // map the configured ram - m_cpu->space(0).install_ram(0x00000000, m_ram->mask(), m_ram->pointer()); - - /* - * HACK: the prom bootp code broadcasts to the network address (i.e. the - * host portion is "all zeroes"), instead of to the standard "all ones". - * This makes it very difficult to receive the bootp request in a host OS, - * so this patch changes the code to broadcast to the standard broadcast - * address instead. - * - * 0xbfc1f1b0: addu r6,0,0 - * jal $bfc0be10 # set host portion from r6 - * - * This patch changes the first instruction to one which loads r6 with - * 0xffffffff, which is then or'd into the host part of the address, i.e.: - * - * addiu r6,0,-$1 - */ - m_rom[0x1f1b0 >> 2] = 0x2406ffff; -} - -void rx3230_state::rx3230(machine_config &config) -{ - R3000A(config, m_cpu, 50_MHz_XTAL / 2, 32768, 32768); - m_cpu->set_addrmap(AS_PROGRAM, &rx3230_state::rx3230_map); - m_cpu->set_fpu(mips1_device_base::MIPS_R3010A); - m_cpu->in_brcond<0>().set([]() { return 1; }); // writeback complete - - // 32 SIMM slots, 8-128MB memory, banks of 8 1MB or 4MB SIMMs - RAM(config, m_ram); - m_ram->set_default_size("32M"); - m_ram->set_extra_options("16M,64M,128M"); - m_ram->set_default_value(0); - - MIPS_RAMBO(config, m_rambo, 25_MHz_XTAL / 4); - m_rambo->timer_out().set_inputline(m_cpu, INPUT_LINE_IRQ2); - m_rambo->irq_out().set_inputline(m_cpu, INPUT_LINE_IRQ1); - m_rambo->parity_out().set_inputline(m_cpu, INPUT_LINE_IRQ5); - //m_rambo->buzzer_out().set(m_buzzer, FUNC(speaker_sound_device::level_w)); - m_rambo->set_ram(m_ram); - m_rambo->dma_r<0>().set("scsi:7:ncr53c94", FUNC(ncr53c94_device::dma16_r)); - m_rambo->dma_w<0>().set("scsi:7:ncr53c94", FUNC(ncr53c94_device::dma16_w)); - - // scsi bus and devices - NSCSI_BUS(config, m_scsibus); - NSCSI_CONNECTOR(config, "scsi:0", mips_scsi_devices, "harddisk"); - NSCSI_CONNECTOR(config, "scsi:1", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:2", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:3", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:4", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:5", mips_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi:6", mips_scsi_devices, nullptr); - - // 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.set_busmd(ncr53c94_device::busmd_t::BUSMD_1); - adapter.irq_handler_cb().set(*this, FUNC(rx3230_state::irq_w<INT_SCSI>)).invert(); - adapter.drq_handler_cb().set(m_rambo, FUNC(mips_rambo_device::drq_w<0>)); - }); - - // ethernet - AM7990(config, m_net); - m_net->intr_out().set(FUNC(rx3230_state::irq_w<INT_NET>)); - m_net->dma_in().set(FUNC(rx3230_state::lance_r)); - m_net->dma_out().set(FUNC(rx3230_state::lance_w)); - - SCC85C30(config, m_scc, 9.8304_MHz_XTAL); // TODO: clock working but unverified - m_scc->out_int_callback().set(FUNC(rx3230_state::irq_w<INT_SCC>)).invert(); - - // 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)); - - // 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)); - - M48T02(config, m_rtc); - - // floppy controller and drive - I82072(config, m_fdc, 16_MHz_XTAL); - m_fdc->intrq_wr_callback().set_inputline(m_cpu, INPUT_LINE_IRQ4); - //m_fdc->drq_wr_callback().set(); - FLOPPY_CONNECTOR(config, "fdc:0", "35hd", FLOPPY_35_HD, true, mips_floppy_formats).enable_sound(false); - - // keyboard connector - pc_kbdc_device &kbd_con(PC_KBDC(config, "kbd_con", 0)); - kbd_con.out_clock_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_clk_w)); - kbd_con.out_data_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_data_w)); - - // keyboard port - PC_KBDC_SLOT(config, m_kbd, pc_at_keyboards, nullptr); - m_kbd->set_pc_kbdc_slot(&kbd_con); - - // keyboard controller - AT_KEYBOARD_CONTROLLER(config, m_kbdc, 12_MHz_XTAL); // TODO: confirm - 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(FUNC(rx3230_state::irq_w<INT_KBD>)); - - // buzzer - SPEAKER(config, "mono").front_center(); - SPEAKER_SOUND(config, m_buzzer); - m_buzzer->add_route(ALL_OUTPUTS, "mono", 0.50); - - // motherboard monochrome video (1152x900 @ 72Hz) - u32 const pixclock = 74'649'600; - - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_raw(pixclock, 1152, 0, 1152, 900, 0, 900); - m_screen->set_screen_update(m_rambo.finder_tag(), FUNC(mips_rambo_device::screen_update)); - - // TODO: slot - motherboard can accept either the colour graphics board, or - // a riser which presents an ISA 16-bit slot. -} - -void rx3230_state::rc3230(machine_config &config) -{ - rx3230(config); - - m_cpu->set_addrmap(AS_PROGRAM, &rx3230_state::rx3230_map); - - m_kbd->set_default_option(STR_KBD_MICROSOFT_NATURAL); - //m_tty[1]->set_default_option("terminal"); -} - -void rx3230_state::rs3230(machine_config &config) -{ - rx3230(config); - - m_kbd->set_default_option(STR_KBD_MICROSOFT_NATURAL); - - // FIXME: colour video board disabled for now - if (false) - { - m_cpu->set_addrmap(AS_PROGRAM, &rx3230_state::rs3230_map); - - // video hardware (1280x1024x8bpp @ 60Hz), 16 parts vram - u32 const pixclock = 108'180'000; - - // timing from VESA 1280x1024 @ 60Hz - m_screen->set_raw(pixclock, 1688, 248, 1528, 1066, 38, 1062); - m_screen->set_screen_update(FUNC(rx3230_state::screen_update)); - //m_screen->screen_vblank().set_inputline(m_cpu, INPUT_LINE_IRQ5); - - BT459(config, m_ramdac, pixclock); - - RAM(config, m_vram); - m_vram->set_default_size("2M"); - m_vram->set_default_value(0); - } -} - -template <u8 Source> WRITE_LINE_MEMBER(rx3230_state::irq_w) -{ - if (state) - m_int_reg |= Source; - else - m_int_reg &= ~Source; - - switch (Source) - { - case INT_SLOT: - case INT_KBD: - case INT_SCC: - case INT_NET: - if (m_int0_state != state) - { - m_int0_state = state; - m_cpu->set_input_line(INPUT_LINE_IRQ0, !state); - } - break; - - case INT_SCSI: - if (m_int1_state != state) - { - m_int1_state = state; - m_cpu->set_input_line(INPUT_LINE_IRQ1, !state); - } - break; - } -} - -u32 rx3230_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, rectangle const &cliprect) -{ - m_ramdac->screen_update(screen, bitmap, cliprect, m_vram->pointer()); - - return 0; -} - -u16 rx3230_state::lance_r(offs_t offset, u16 mem_mask) -{ - u16 const data = - (m_ram->read(BYTE4_XOR_BE(offset + 0)) << 8) | - m_ram->read(BYTE4_XOR_BE(offset + 1)); - - return data; -} - -void rx3230_state::lance_w(offs_t offset, u16 data, u16 mem_mask) -{ - if (ACCESSING_BITS_0_7) - m_ram->write(BYTE4_XOR_BE(offset + 1), data); - - if (ACCESSING_BITS_8_15) - m_ram->write(BYTE4_XOR_BE(offset + 0), data >> 8); -} - -ROM_START(rx2030) - ROM_REGION16_LE(0x40000, "rx2030", 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)) - - /* - * The following isn't a real dump, but a hand-made nvram image that allows - * entry to the boot monitor. Variables can be adjusted via the monitor, - * and are laid out as follows: - * - * Offset Length Variable - * 0x0e 4 netaddr - * 0x12 1 lbaud - * 0x13 1 rbaud - * 0x14 20 bootfile - * 0x28 1 bootmode - * 0x29 1 console - * 0x2a 1 ponmask? or something similar - * 0x2b 3 unused? - * 0x2e 4 resetepc - * 0x32 4 resetra - * 0x36 1 keyswtch - * 0x37 1 flag - * 0x38 8 unused? - * - */ - ROM_REGION(0x40, "rtc", 0) - ROM_LOAD("ds1287.bin", 0x00, 0x40, CRC(28369bf3) SHA1(64f24e1d8fb7103ab0bd3023c66490447bdcbf89)) -ROM_END -#define rom_rc2030 rom_rx2030 -#define rom_rs2030 rom_rx2030 - -ROM_START(rx3230) - ROM_REGION32_BE(0x40000, "rx3230", 0) - ROM_SYSTEM_BIOS(0, "v5.40", "Rx3230 v5.40, Jun 1990") - ROMX_LOAD("50-314-003__3230_left.bin", 0x00002, 0x20000, CRC(77ce42c9) SHA1(b2d5e5a386ed0ff840646647ba90b3c36732a7fe), ROM_BIOS(0) | ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2)) - ROMX_LOAD("50-314-003__3230_right.bin", 0x00000, 0x20000, CRC(5bc1ce2f) SHA1(38661234bf40b76395393459de49e48619b2b454), ROM_BIOS(0) | ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2)) - - ROM_SYSTEM_BIOS(1, "v5.42", "Rx3230 v5.42, Mar 1991") - ROMX_LOAD("unknown.bin", 0x00002, 0x20000, NO_DUMP, ROM_BIOS(1) | ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2)) - ROMX_LOAD("unknown.bin", 0x00000, 0x20000, NO_DUMP, ROM_BIOS(1) | ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2)) - - //ROM_REGION(0x800, "i8042", 0) - //ROM_LOAD("unknown.bin", 0x000, 0x800, NO_DUMP) - - //ROM_REGION(0x800, "rtc", 0) - //ROM_LOAD("m48t02.bin", 0x000, 0x800, NO_DUMP) -ROM_END -#define rom_rc3230 rom_rx3230 -#define rom_rs3230 rom_rx3230 - -/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -COMP(1989, rc2030, 0, 0, rc2030, 0, rx2030_state, rx2030_init, "MIPS", "RC2030", 0) -COMP(1989, rs2030, 0, 0, rs2030, 0, rx2030_state, rx2030_init, "MIPS", "RS2030", 0) -COMP(1990, rc3230, 0, 0, rc3230, 0, rx3230_state, rx3230_init, "MIPS", "RC3230", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) -COMP(1990, rs3230, 0, 0, rs3230, 0, rx3230_state, rx3230_init, "MIPS", "Magnum 3000", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |