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Diffstat (limited to 'src/mame/drivers/mbc55x.cpp')
-rw-r--r-- | src/mame/drivers/mbc55x.cpp | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/src/mame/drivers/mbc55x.cpp b/src/mame/drivers/mbc55x.cpp deleted file mode 100644 index c9e644b9f07..00000000000 --- a/src/mame/drivers/mbc55x.cpp +++ /dev/null @@ -1,378 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Phill Harvey-Smith -/* - drivers/mbc55x.cpp - - Machine driver for the Sanyo MBC-550 and MBC-555. - - Phill Harvey-Smith - 2011-01-29. - -*/ - - -#include "emu.h" -#include "includes/mbc55x.h" -#include "bus/isa/isa.h" -#include "bus/isa/isa_cards.h" -#include "bus/rs232/rs232.h" -#include "machine/clock.h" -#include "machine/i8087.h" -#include "machine/input_merger.h" -#include "machine/mbc55x_kbd.h" -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - - -void mbc55x_state::mbc55x_mem(address_map &map) -{ - map(0x00000, 0x0FFFF).bankrw(RAM_BANK00_TAG); - map(0x10000, 0x1FFFF).bankrw(RAM_BANK01_TAG); - map(0x20000, 0x2FFFF).bankrw(RAM_BANK02_TAG); - map(0x30000, 0x3FFFF).bankrw(RAM_BANK03_TAG); - map(0x40000, 0x4FFFF).bankrw(RAM_BANK04_TAG); - map(0x50000, 0x5FFFF).bankrw(RAM_BANK05_TAG); - map(0x60000, 0x6FFFF).bankrw(RAM_BANK06_TAG); - map(0x70000, 0x7FFFF).bankrw(RAM_BANK07_TAG); - map(0x80000, 0x8FFFF).bankrw(RAM_BANK08_TAG); - map(0x90000, 0x9FFFF).bankrw(RAM_BANK09_TAG); - map(0xA0000, 0xAFFFF).bankrw(RAM_BANK0A_TAG); - map(0xB0000, 0xBFFFF).bankrw(RAM_BANK0B_TAG); - map(0xC0000, 0xCFFFF).bankrw(RAM_BANK0C_TAG); - map(0xD0000, 0xDFFFF).bankrw(RAM_BANK0D_TAG); - map(0xE0000, 0xEFFFF).bankrw(RAM_BANK0E_TAG); - map(0xF0000, 0xF3FFF).bankrw(RED_PLANE_TAG); - map(0xF4000, 0xF7FFF).bankrw(BLUE_PLANE_TAG); - map(0xF8000, 0xFBFFF).noprw(); - map(0xFC000, 0xFDFFF).rom().nopw().region(MAINCPU_TAG, 0x0000).mirror(0x002000); -} - -void mbc55x_state::mbc55x_io(address_map &map) -{ - map(0x0000, 0x0000).select(0x003e).rw(FUNC(mbc55x_state::iodecode_r), FUNC(mbc55x_state::iodecode_w)); -} - -void mbc55x_state::mbc55x_iodecode(address_map &map) -{ - map(0x00, 0x01).mirror(0x02).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); - map(0x04, 0x07).rw(m_fdc, FUNC(fd1793_device::read), FUNC(fd1793_device::write)); - map(0x08, 0x08).mirror(0x03).rw(FUNC(mbc55x_state::vram_page_r), FUNC(mbc55x_state::vram_page_w)); - map(0x0c, 0x0f).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write)); - map(0x10, 0x13).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); - map(0x14, 0x15).mirror(0x02).rw("sio", FUNC(i8251_device::read), FUNC(i8251_device::write)); - map(0x18, 0x18).mirror(0x02).rw(m_crtc, FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); - map(0x19, 0x19).mirror(0x02).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); - map(0x1c, 0x1d).mirror(0x02).rw(m_kb_uart, FUNC(i8251_device::read), FUNC(i8251_device::write)); -} - -uint8_t mbc55x_state::iodecode_r(offs_t offset) -{ - return m_iodecode->read8(offset >> 1); -} - -void mbc55x_state::iodecode_w(offs_t offset, uint8_t data) -{ - m_iodecode->write8(offset >> 1, data); -} - -/* 8255 Configuration */ - -uint8_t mbc55x_state::game_io_r() -{ - u8 result = m_gameio->sw3_r(); - result |= m_gameio->sw2_r() << 1; - result |= m_gameio->sw1_r() << 2; - result |= m_gameio->sw0_r() << 3; - - for (int i = 0; i < 4; i++) - if (machine().time().as_double() < m_ls123_clear_time[i]) - result |= 1 << (4 + i); - - return result; -} - -uint8_t mbc55x_state::printer_status_r() -{ - return m_printer_status; -} - -void mbc55x_state::printer_data_w(uint8_t data) -{ - m_printer->write_data7(!BIT(data, 7)); - m_printer->write_data6(!BIT(data, 6)); - m_printer->write_data5(!BIT(data, 5)); - m_printer->write_data4(!BIT(data, 4)); - m_printer->write_data3(!BIT(data, 3)); - m_printer->write_data2(!BIT(data, 2)); - m_printer->write_data1(!BIT(data, 1)); - m_printer->write_data0(!BIT(data, 0)); - - m_gameio->an0_w(!BIT(data, 0)); - m_gameio->an1_w(!BIT(data, 1)); - m_gameio->an2_w(!BIT(data, 2)); - m_gameio->an3_w(!BIT(data, 3)); - m_gameio->an4_w(!BIT(data, 4)); - m_gameio->strobe_w(!BIT(data, 5)); - - if (m_ls123_strobe != BIT(data, 7)) - { - if (BIT(data, 7)) - { - m_ls123_clear_time[0] = machine().time().as_double() + m_x_calibration * m_gameio->pdl0_r(); - m_ls123_clear_time[1] = machine().time().as_double() + m_y_calibration * m_gameio->pdl1_r(); - m_ls123_clear_time[2] = machine().time().as_double() + m_x_calibration * m_gameio->pdl2_r(); - m_ls123_clear_time[3] = machine().time().as_double() + m_y_calibration * m_gameio->pdl3_r(); - } - - m_ls123_strobe = BIT(data, 7); - } -} - -void mbc55x_state::disk_select_w(uint8_t data) -{ - floppy_image_device *floppy = nullptr; - - switch (data & 0x03) - { - case 0: floppy = m_floppy[0]->get_device(); break; - case 1: floppy = m_floppy[1]->get_device(); break; - case 2: floppy = m_floppy[2]->get_device(); break; - case 3: floppy = m_floppy[3]->get_device(); break; - } - - m_fdc->set_floppy(floppy); - - if (floppy) - { - floppy->mon_w(0); - floppy->ss_w(BIT(data, 2)); - } - - m_printer->write_strobe(!BIT(data, 3)); -} - -WRITE_LINE_MEMBER(mbc55x_state::printer_busy_w) -{ - m_printer_status = (m_printer_status & 0xef) | (state ? 0x10 : 0x00); -} - -WRITE_LINE_MEMBER(mbc55x_state::printer_paper_end_w) -{ - m_printer_status = (m_printer_status & 0xdf) | (state ? 0x20 : 0x00); -} - -WRITE_LINE_MEMBER(mbc55x_state::printer_select_w) -{ - m_printer_status = (m_printer_status & 0xbf) | (state ? 0x40 : 0x00); -} - - -void mbc55x_state::set_ram_size() -{ - address_space &space = m_maincpu->space( AS_PROGRAM ); - int ramsize = m_ram->size(); - int nobanks = ramsize / RAM_BANK_SIZE; - char bank[10]; - int bankno; - uint8_t *ram = &m_ram->pointer()[0]; - uint8_t *map_base; - int bank_base; - - - logerror("Ramsize is %d bytes\n",ramsize); - logerror("RAM_BANK_SIZE=%d, nobanks=%d\n",RAM_BANK_SIZE,nobanks); - - // Main memory mapping - - for(bankno=0; bankno<RAM_BANK_COUNT; bankno++) - { - sprintf(bank,"bank%x",bankno); - bank_base=bankno*RAM_BANK_SIZE; - map_base=&ram[bank_base]; - - if(bankno<nobanks) - { - membank(bank)->set_base(map_base); - space.install_readwrite_bank(bank_base, bank_base+(RAM_BANK_SIZE-1), membank(bank)); - logerror("Mapping bank %d at %05X to RAM\n",bankno,bank_base); - } - else - { - space.nop_readwrite(bank_base, bank_base+(RAM_BANK_SIZE-1)); - logerror("Mapping bank %d at %05X to NOP\n",bankno,bank_base); - } - } - - // Graphics red and blue plane memory mapping, green is in main memory - membank(RED_PLANE_TAG)->set_base(&m_video_mem[RED_PLANE_OFFSET]); - space.install_readwrite_bank(RED_PLANE_MEMBASE, RED_PLANE_MEMBASE+(COLOUR_PLANE_SIZE-1), membank(RED_PLANE_TAG)); - membank(BLUE_PLANE_TAG)->set_base(&m_video_mem[BLUE_PLANE_OFFSET]); - space.install_readwrite_bank(BLUE_PLANE_MEMBASE, BLUE_PLANE_MEMBASE+(COLOUR_PLANE_SIZE-1), membank(BLUE_PLANE_TAG)); -} - -void mbc55x_state::machine_reset() -{ - set_ram_size(); -} - -void mbc55x_state::machine_start() -{ - // FIXME: values copied from apple2.cpp - m_x_calibration = attotime::from_nsec(10800).as_double(); - m_y_calibration = attotime::from_nsec(10800).as_double(); - - m_printer_status = 0xff; - - m_ls123_strobe = true; - std::fill(std::begin(m_ls123_clear_time), std::end(m_ls123_clear_time), 0.0); - - m_kb_uart->write_cts(0); -} - - -static INPUT_PORTS_START( mbc55x ) -INPUT_PORTS_END - - -// MBC-550 : 1 x 5.25" disk-drive (160 KB) -// MBC-555 : 2 x 5.25" disk-drive (160 KB) -// MBC-555-2 : 2 x 5.25" disk-drive (360 KB) -// MBC-555-3 : 2 x 5.25" disk-drive (720 KB) - -static void mbc55x_floppies(device_slot_interface &device) -{ - device.option_add("ssdd", FLOPPY_525_SSDD); - device.option_add("dd", FLOPPY_525_DD); - device.option_add("qd", FLOPPY_525_QD); -} - - -void mbc55x_state::mbc55x(machine_config &config) -{ - /* basic machine hardware */ - I8088(config, m_maincpu, 14.318181_MHz_XTAL / 4); - m_maincpu->set_addrmap(AS_PROGRAM, &mbc55x_state::mbc55x_mem); - m_maincpu->set_addrmap(AS_IO, &mbc55x_state::mbc55x_io); - m_maincpu->set_irq_acknowledge_callback(PIC8259_TAG, FUNC(pic8259_device::inta_cb)); - m_maincpu->esc_opcode_handler().set("coproc", FUNC(i8087_device::insn_w)); - m_maincpu->esc_data_handler().set("coproc", FUNC(i8087_device::addr_w)); - - i8087_device &i8087(I8087(config, "coproc", 14.318181_MHz_XTAL / 4)); - i8087.set_space_88(m_maincpu, AS_PROGRAM); - i8087.irq().set(m_pic, FUNC(pic8259_device::ir6_w)); - i8087.busy().set_inputline("maincpu", INPUT_LINE_TEST); - - ADDRESS_MAP_BANK(config, m_iodecode); - m_iodecode->endianness(ENDIANNESS_LITTLE); - m_iodecode->data_width(8); - m_iodecode->addr_width(5); - m_iodecode->set_addrmap(0, &mbc55x_state::mbc55x_iodecode); - - mbc55x_keyboard_device &keyboard(MBC55X_KEYBOARD(config, "keyboard")); - keyboard.txd_callback().set(m_kb_uart, FUNC(i8251_device::write_rxd)); - - /* video hardware */ - screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER)); - screen.set_raw(14.318181_MHz_XTAL, 896, 0, 640, 262, 0, 200); - screen.set_screen_update(VID_MC6845_NAME, FUNC(mc6845_device::screen_update)); - - PALETTE(config, m_palette, FUNC(mbc55x_state::mbc55x_palette), SCREEN_NO_COLOURS * 3); - - RAM(config, RAM_TAG).set_default_size("128K").set_extra_options("128K,192K,256K,320K,384K,448K,512K,576K,640K"); - - /* sound hardware */ - SPEAKER(config, MONO_TAG).front_center(); - SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, MONO_TAG, 0.75); - - /* Devices */ - I8251(config, m_kb_uart, 14.318181_MHz_XTAL / 8); - m_kb_uart->txd_handler().set("speaker", FUNC(speaker_sound_device::level_w)).invert(); - m_kb_uart->rts_handler().set(m_printer, FUNC(centronics_device::write_init)).invert(); - m_kb_uart->rxrdy_handler().set(m_pic, FUNC(pic8259_device::ir3_w)); - - PIT8253(config, m_pit); - m_pit->out_handler<0>().set(m_pic, FUNC(pic8259_device::ir0_w)); - m_pit->out_handler<0>().append(m_pit, FUNC(pit8253_device::write_clk1)); - m_pit->out_handler<1>().set(m_pic, FUNC(pic8259_device::ir1_w)); - m_pit->set_clk<2>(14.318181_MHz_XTAL / 8); - m_pit->out_handler<2>().set("sio", FUNC(i8251_device::write_txc)); - m_pit->out_handler<2>().append("sio", FUNC(i8251_device::write_rxc)); - m_pit->out_handler<2>().append("line", FUNC(rs232_port_device::write_etc)); - - clock_device &clk_78_6khz(CLOCK(config, "clk_78.6khz", 14.318181_MHz_XTAL / 14 / 13)); - clk_78_6khz.signal_handler().set(m_pit, FUNC(pit8253_device::write_clk0)); - clk_78_6khz.signal_handler().append(m_kb_uart, FUNC(i8251_device::write_txc)); - clk_78_6khz.signal_handler().append(m_kb_uart, FUNC(i8251_device::write_rxc)); - - PIC8259(config, m_pic); - m_pic->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - - I8255(config, m_ppi); - m_ppi->in_pa_callback().set(FUNC(mbc55x_state::game_io_r)); - m_ppi->out_pb_callback().set(FUNC(mbc55x_state::printer_data_w)); - m_ppi->in_pc_callback().set(FUNC(mbc55x_state::printer_status_r)); - m_ppi->out_pc_callback().set(FUNC(mbc55x_state::disk_select_w)); - - HD6845S(config, m_crtc, 14.318181_MHz_XTAL / 8); // HD46505SP-1 - m_crtc->set_screen(SCREEN_TAG); - m_crtc->set_show_border_area(false); - m_crtc->set_char_width(8); - m_crtc->set_update_row_callback(FUNC(mbc55x_state::crtc_update_row)); - m_crtc->out_vsync_callback().set(FUNC(mbc55x_state::vid_vsync_changed)); - m_crtc->out_hsync_callback().set(FUNC(mbc55x_state::vid_hsync_changed)); - - /* Backing storage */ - FD1793(config, m_fdc, 14.318181_MHz_XTAL / 14); // M5W1793-02P (clock is nominally 1 MHz) - m_fdc->intrq_wr_callback().set(m_pic, FUNC(pic8259_device::ir5_w)); - - FLOPPY_CONNECTOR(config, m_floppy[0], mbc55x_floppies, "qd", floppy_image_device::default_pc_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy[1], mbc55x_floppies, "qd", floppy_image_device::default_pc_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy[2], mbc55x_floppies, nullptr, floppy_image_device::default_pc_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy[3], mbc55x_floppies, nullptr, floppy_image_device::default_pc_floppy_formats); - - /* Software list */ - SOFTWARE_LIST(config, "disk_list").set_original("mbc55x"); - - isa8_device &isa(ISA8(config, "isa", 14.318181_MHz_XTAL / 4)); - isa.set_memspace(m_maincpu, AS_PROGRAM); - isa.set_iospace(m_maincpu, AS_IO); - isa.irq7_callback().set(m_pic, FUNC(pic8259_device::ir7_w)); // all other IRQ and DRQ lines are NC - isa.iochck_callback().set_inputline(m_maincpu, INPUT_LINE_NMI).invert(); - - ISA8_SLOT(config, "external", 0, "isa", pc_isa8_cards, nullptr, false); - - i8251_device &sio(I8251(config, "sio", 14.318181_MHz_XTAL / 8)); // on separate board, through 20-pin header - sio.dtr_handler().set("line", FUNC(rs232_port_device::write_dtr)); - sio.txd_handler().set("line", FUNC(rs232_port_device::write_txd)); - sio.rts_handler().set("line", FUNC(rs232_port_device::write_rts)); - sio.rxrdy_handler().set("sioint", FUNC(input_merger_device::in_w<0>)); - sio.txrdy_handler().set("sioint", FUNC(input_merger_device::in_w<1>)); - - rs232_port_device &serial(RS232_PORT(config, "line", default_rs232_devices, nullptr)); - serial.rxd_handler().set("sio", FUNC(i8251_device::write_rxd)); - serial.dsr_handler().set("sio", FUNC(i8251_device::write_dsr)); - serial.cts_handler().set("sio", FUNC(i8251_device::write_cts)); - - INPUT_MERGER_ANY_HIGH(config, "sioint").output_handler().set(m_pic, FUNC(pic8259_device::ir2_w)); - - APPLE2_GAMEIO(config, m_gameio, apple2_gameio_device::default_options, nullptr); - m_gameio->set_sw_pullups(true); // 3300 ohm pullups to 5.0V on pins 2-4 and 16 - - CENTRONICS(config, m_printer, centronics_devices, nullptr); - m_printer->busy_handler().set(FUNC(mbc55x_state::printer_busy_w)).invert(); // LS14 Schmitt trigger - m_printer->busy_handler().append(m_pic, FUNC(pic8259_device::ir4_w)).invert(); - m_printer->perror_handler().set(FUNC(mbc55x_state::printer_paper_end_w)); - m_printer->select_handler().set(FUNC(mbc55x_state::printer_select_w)); -} - - -ROM_START( mbc55x ) - ROM_REGION(0x4000, MAINCPU_TAG, 0) - - ROM_SYSTEM_BIOS(0, "v120", "mbc55x BIOS v1.20 (1983)") - ROMX_LOAD("mbc55x-v120.rom", 0x0000, 0x2000, CRC(b439b4b8) SHA1(6e8df0f3868e3fd0229a5c2720d6c01e46815cab), ROM_BIOS(0)) -ROM_END - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1983, mbc55x, 0, 0, mbc55x, mbc55x, mbc55x_state, empty_init, "Sanyo", "MBC-55x", 0 ) |