// 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 )