// 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. ToDo: - Fix the sound - Add serial uart */ #include "emu.h" #include "includes/mbc55x.h" #include "bus/isa/isa.h" #include "bus/isa/isa_cards.h" //#include "bus/pc_joy/pc_joy.h" #include "bus/rs232/rs232.h" #include "cpu/mcs48/mcs48.h" #include "machine/clock.h" #include "machine/input_merger.h" #include "screen.h" #include "softlist.h" #include "speaker.h" const unsigned char mbc55x_palette[SCREEN_NO_COLOURS][3] = { /*normal brightness */ { 0x00,0x00,0x00 }, /* black */ { 0x00,0x00,0x80 }, /* blue */ { 0x00,0x80,0x00 }, /* green */ { 0x00,0x80,0x80 }, /* cyan */ { 0x80,0x00,0x00 }, /* red */ { 0x80,0x00,0x80 }, /* magenta */ { 0x80,0x80,0x00 }, /* yellow */ { 0x80,0x80,0x80 }, /* light grey */ }; 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).r(FUNC(mbc55x_state::mbc55x_kb_usart_r)).w(m_kb_uart, FUNC(i8251_device::write)); } static INPUT_PORTS_START( mbc55x ) PORT_START("KEY0") /* Key row 0 scancodes 00..07 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_START("KEY1") /* Key row 1 scancodes 08..0F */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BSLASH") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_START("KEY2") /* Key row 2 scancodes 10..17 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_START("KEY3") /* Key row 3 scancodes 18..1F */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_START("KEY4") /* Key row 4 scancodes 20..27 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TILDE") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("#") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('#') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0D) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_START("KEY5") /* Key row 5 scancodes 28..2F */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_START("KEY6") /* Key row 6 scancodes 30..37 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(0x08) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) #if 0 PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BACKSLASH") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LSHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) // Ether control PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RSHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PRSCR") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('*') PORT_START("KEY7") /* Key row 7 scancodes 38..3F */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_START("KEY8") /* Key row 8 scancodes 40..47 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("NUMLK") PORT_CODE(KEYCODE_NUMLOCK) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SCRLK") PORT_CODE(KEYCODE_SCRLOCK) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7') PORT_START("KEY9") /* Key row 9 scancodes 48..4F */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP8") PORT_CODE(KEYCODE_8_PAD) //PORT_CHAR('8') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP9") PORT_CODE(KEYCODE_9_PAD) //PORT_CHAR('9') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP-") PORT_CODE(KEYCODE_MINUS_PAD) //PORT_CHAR('-') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP4") PORT_CODE(KEYCODE_4_PAD) //PORT_CHAR('4') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP5") PORT_CODE(KEYCODE_5_PAD) //PORT_CHAR('5') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP6") PORT_CODE(KEYCODE_6_PAD) //PORT_CHAR('6') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP+") PORT_CODE(KEYCODE_PLUS_PAD) //PORT_CHAR('+') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP1") PORT_CODE(KEYCODE_1_PAD) //PORT_CHAR('1') PORT_START("KEY10") /* Key row 10 scancodes 50..57 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP2") PORT_CODE(KEYCODE_2_PAD) //PORT_CHAR('2') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP3") PORT_CODE(KEYCODE_3_PAD) //PORT_CHAR('3') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP0") PORT_CODE(KEYCODE_0_PAD) //PORT_CHAR('0') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP.") PORT_CODE(KEYCODE_DEL_PAD) //PORT_CHAR('.') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) //PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5') //PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6') //PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP+") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+') //PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1') #endif PORT_START(KEY_SPECIAL_TAG) PORT_BIT(KEY_BIT_LSHIFT, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LSHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(KEY_BIT_RSHIFT, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RSHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(KEY_BIT_CTRL, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) // Ether control PORT_BIT(KEY_BIT_GRAPH, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("GRAPH") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) INPUT_PORTS_END PALETTE_INIT_MEMBER(mbc55x_state, mbc55x) { int colourno; logerror("initializing palette\n"); for ( colourno = 0; colourno < SCREEN_NO_COLOURS; colourno++ ) palette.set_pen_color(colourno, mbc55x_palette[colourno][RED], mbc55x_palette[colourno][GREEN], mbc55x_palette[colourno][BLUE]); } FLOPPY_FORMATS_MEMBER( mbc55x_state::floppy_formats ) FLOPPY_PC_FORMAT FLOPPY_FORMATS_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); } MACHINE_CONFIG_START(mbc55x_state::mbc55x) /* 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)); 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); I8049(config, "kbdc", 6_MHz_XTAL).set_disable(); /* 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)); MCFG_PALETTE_ADD("palette", SCREEN_NO_COLOURS * 3) MCFG_PALETTE_INIT_OWNER(mbc55x_state, mbc55x) 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, 0); 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, 0); 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_pa_callback().set(FUNC(mbc55x_state::game_io_w)); 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)); HD6845(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), this); 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)); MCFG_FLOPPY_DRIVE_ADD(m_floppy[0], mbc55x_floppies, "qd", mbc55x_state::floppy_formats) MCFG_FLOPPY_DRIVE_ADD(m_floppy[1], mbc55x_floppies, "qd", mbc55x_state::floppy_formats) MCFG_FLOPPY_DRIVE_ADD(m_floppy[2], mbc55x_floppies, "", mbc55x_state::floppy_formats) MCFG_FLOPPY_DRIVE_ADD(m_floppy[3], mbc55x_floppies, "", mbc55x_state::floppy_formats) /* Software list */ MCFG_SOFTWARE_LIST_ADD("disk_list","mbc55x") isa8_device &isa(ISA8(config, "isa", 0)); isa.set_cputag(m_maincpu); 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)); 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)); 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)); MACHINE_CONFIG_END 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_REGION(0x0800, "kbdc", 0) ROM_LOAD("d8049hc.m1", 0x0000, 0x0800, NO_DUMP) 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 )