diff options
Diffstat (limited to 'src/mame/drivers/mbc55x.cpp')
-rw-r--r-- | src/mame/drivers/mbc55x.cpp | 324 |
1 files changed, 147 insertions, 177 deletions
diff --git a/src/mame/drivers/mbc55x.cpp b/src/mame/drivers/mbc55x.cpp index aa8b1bb7041..73629a1945f 100644 --- a/src/mame/drivers/mbc55x.cpp +++ b/src/mame/drivers/mbc55x.cpp @@ -8,11 +8,6 @@ Phill Harvey-Smith 2011-01-29. - -ToDo: -- Fix the sound -- Add serial uart - */ @@ -22,27 +17,14 @@ ToDo: #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/i8087.h" #include "machine/input_merger.h" +#include "machine/mbc55x_kbd.h" #include "screen.h" #include "softlist.h" #include "speaker.h" -static constexpr rgb_t mbc55x_pens[SCREEN_NO_COLOURS] -{ - // 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) { @@ -82,155 +64,145 @@ void mbc55x_state::mbc55x_iodecode(address_map &map) 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)); + map(0x1c, 0x1d).mirror(0x02).rw(m_kb_uart, FUNC(i8251_device::read), 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) +uint8_t mbc55x_state::iodecode_r(offs_t offset) +{ + return m_iodecode->read8(offset >> 1); +} -INPUT_PORTS_END +void mbc55x_state::iodecode_w(offs_t offset, uint8_t data) +{ + m_iodecode->write8(offset >> 1, data); +} +/* 8255 Configuration */ -void mbc55x_state::mbc55x_palette(palette_device &palette) const +uint8_t mbc55x_state::game_io_r() { - logerror("initializing palette\n"); + return 0xff; +} - palette.set_pen_colors(0, mbc55x_pens); +void mbc55x_state::game_io_w(uint8_t data) +{ } +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)); +} + +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), 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), 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), BLUE_PLANE_TAG); +} + +void mbc55x_state::machine_reset() +{ + set_ram_size(); +} + +void mbc55x_state::machine_start() +{ + m_printer_status = 0xff; + + m_kb_uart->write_cts(0); +} + + +static INPUT_PORTS_START( mbc55x ) +INPUT_PORTS_END + FLOPPY_FORMATS_MEMBER( mbc55x_state::floppy_formats ) FLOPPY_PC_FORMAT @@ -250,7 +222,8 @@ static void mbc55x_floppies(device_slot_interface &device) } -MACHINE_CONFIG_START(mbc55x_state::mbc55x) +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); @@ -260,8 +233,7 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) 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_addrmap(AS_PROGRAM, &mbc55x_state::mbc55x_mem); - i8087.set_data_width(8); + 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); @@ -271,7 +243,8 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) m_iodecode->addr_width(5); m_iodecode->set_addrmap(0, &mbc55x_state::mbc55x_iodecode); - I8049(config, "kbdc", 6_MHz_XTAL).set_disable(); + 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)); @@ -292,7 +265,7 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) 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); + 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)); @@ -306,7 +279,7 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) 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); + PIC8259(config, m_pic); m_pic->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); I8255(config, m_ppi); @@ -328,18 +301,19 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) 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) + FLOPPY_CONNECTOR(config, m_floppy[0], mbc55x_floppies, "qd", mbc55x_state::floppy_formats); + FLOPPY_CONNECTOR(config, m_floppy[1], mbc55x_floppies, "qd", mbc55x_state::floppy_formats); + FLOPPY_CONNECTOR(config, m_floppy[2], mbc55x_floppies, "", mbc55x_state::floppy_formats); + FLOPPY_CONNECTOR(config, m_floppy[3], mbc55x_floppies, "", mbc55x_state::floppy_formats); /* Software list */ - MCFG_SOFTWARE_LIST_ADD("disk_list","mbc55x") + SOFTWARE_LIST(config, "disk_list").set_original("mbc55x"); isa8_device &isa(ISA8(config, "isa", 14.318181_MHz_XTAL / 4)); - isa.set_cputag(m_maincpu); + 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)); + isa.iochck_callback().set_inputline(m_maincpu, INPUT_LINE_NMI).invert(); ISA8_SLOT(config, "external", 0, "isa", pc_isa8_cards, nullptr, false); @@ -362,7 +336,7 @@ MACHINE_CONFIG_START(mbc55x_state::mbc55x) 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 ) @@ -370,11 +344,7 @@ ROM_START( mbc55x ) 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 ) |