// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*
http://www2.odn.ne.jp/~haf09260/Pc80/EnrPc.htm
http://home1.catvmics.ne.jp/~kanemoto/n80/inside.html
http://www.geocities.jp/retro_zzz/machines/nec/8001/index.html
*/
/*
TODO:
- uPD3301 attributes
- PCG1000
- Intel 8251
- cassette
- floppy
- PC-8011
- PC-8021
- PC-8031
*/
#include "includes/pc8001.h"
/* Read/Write Handlers */
WRITE8_MEMBER( pc8001_state::port10_w )
{
/*
bit description
0 RTC C0
1 RTC C1
2 RTC C2
3 RTC DATA IN
4
5
6
7
*/
// RTC
m_rtc->c0_w(BIT(data, 0));
m_rtc->c1_w(BIT(data, 1));
m_rtc->c2_w(BIT(data, 2));
m_rtc->data_in_w(BIT(data, 3));
// centronics
m_cent_data_out->write(space, 0, data);
}
WRITE8_MEMBER( pc8001_state::port30_w )
{
/*
bit description
0 characters per line (0=40, 1=80)
1 color mode (0=color, 1=B&W)
2 CMT CHIN
3 CMT MOTOR (1=on)
4 CMT BS1
5 CMT BS2
6 unused
7 unused
*/
/* characters per line */
m_width80 = BIT(data, 0);
/* color mode */
m_color = BIT(data, 1);
/* cassette motor */
m_cassette->change_state(BIT(data,3) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
}
WRITE8_MEMBER( pc8001mk2_state::port31_w )
{
/*
bit description
0 expansion ROM (0=expansion, 1=N80)
1 memory mode (0=ROM, 1=RAM)
2 color mode (0=attribute, 1=B&W)
3 graphics enable
4 resolution (0=640x200, 1=320x200)
5 background color
6 background color
7 background color
*/
}
WRITE_LINE_MEMBER( pc8001_state::write_centronics_busy )
{
m_centronics_busy = state;
}
WRITE_LINE_MEMBER( pc8001_state::write_centronics_ack )
{
m_centronics_ack = state;
}
READ8_MEMBER( pc8001_state::port40_r )
{
/*
bit description
0 BUSY
1 ACK
2 CMT CDIN
3 EXP /EXTON
4 RTC DATA OUT
5 VRTC
6
7
*/
UINT8 data = 0x08;
data |= m_centronics_busy;
data |= m_centronics_ack << 1;
data |= m_rtc->data_out_r() << 4;
data |= m_crtc->vrtc_r() << 5;
return data;
}
WRITE8_MEMBER( pc8001_state::port40_w )
{
/*
bit description
0 STROBE
1 RTC STB
2 RTC CLK
3 CRT /CLDS CLK
4
5 SPEAKER
6
7
*/
m_centronics->write_strobe(BIT(data, 0));
m_rtc->clk_w(BIT(data, 2));
m_rtc->stb_w(BIT(data, 1));
m_speaker->level_w(BIT(data, 5));
}
/* Memory Maps */
static ADDRESS_MAP_START( pc8001_mem, AS_PROGRAM, 8, pc8001_state )
AM_RANGE(0x0000, 0x5fff) AM_RAMBANK("bank1")
AM_RANGE(0x6000, 0x7fff) AM_RAMBANK("bank2")
AM_RANGE(0x8000, 0xffff) AM_RAMBANK("bank3")
ADDRESS_MAP_END
static ADDRESS_MAP_START( pc8001_io, AS_IO, 8, pc8001_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x00, 0x00) AM_READ_PORT("Y0")
AM_RANGE(0x01, 0x01) AM_READ_PORT("Y1")
AM_RANGE(0x02, 0x02) AM_READ_PORT("Y2")
AM_RANGE(0x03, 0x03) AM_READ_PORT("Y3")
AM_RANGE(0x04, 0x04) AM_READ_PORT("Y4")
AM_RANGE(0x05, 0x05) AM_READ_PORT("Y5")
AM_RANGE(0x06, 0x06) AM_READ_PORT("Y6")
AM_RANGE(0x07, 0x07) AM_READ_PORT("Y7")
AM_RANGE(0x08, 0x08) AM_READ_PORT("Y8")
AM_RANGE(0x09, 0x09) AM_READ_PORT("Y9")
AM_RANGE(0x10, 0x10) AM_MIRROR(0x0f) AM_WRITE(port10_w)
AM_RANGE(0x20, 0x20) AM_MIRROR(0x0e) AM_DEVREADWRITE(I8251_TAG, i8251_device, data_r, data_w)
AM_RANGE(0x21, 0x21) AM_MIRROR(0x0e) AM_DEVREADWRITE(I8251_TAG, i8251_device, status_r, control_w)
AM_RANGE(0x30, 0x30) AM_MIRROR(0x0f) AM_WRITE(port30_w)
AM_RANGE(0x40, 0x40) AM_MIRROR(0x0f) AM_READWRITE(port40_r, port40_w)
AM_RANGE(0x50, 0x51) AM_DEVREADWRITE(UPD3301_TAG, upd3301_device, read, write)
AM_RANGE(0x60, 0x68) AM_DEVREADWRITE(I8257_TAG, i8257_device, read, write)
// AM_RANGE(0x70, 0x7f) unused
// AM_RANGE(0x80, 0x80) AM_MIRROR(0x0f) AM_WRITE(pc8011_ext0_w)
// AM_RANGE(0x90, 0x90) AM_MIRROR(0x0f) AM_WRITE(pc8011_ext1_w)
// AM_RANGE(0xa0, 0xa0) AM_MIRROR(0x0f) AM_WRITE(pc8011_ext2_w)
// AM_RANGE(0xb0, 0xb0) AM_READ(pc8011_gpio8_r)
// AM_RANGE(0xb1, 0xb1) AM_WRITE(pc8011_gpio8_w)
// AM_RANGE(0xb2, 0xb2) AM_READ(pc8011_gpio4_r)
// AM_RANGE(0xb3, 0xb3) AM_WRITE(pc8011_gpio4_w)
// AM_RANGE(0xc0, 0xc0) AM_DEVREADWRITE(PC8011_CH1_I8251_TAG, i8251_device, data_r, data_w)
// AM_RANGE(0xc1, 0xc1) AM_DEVREADWRITE(PC8011_CH1_I8251_TAG, i8251_device, status_r, control_w)
// AM_RANGE(0xc2, 0xc2) AM_DEVREADWRITE(PC8011_CH2_I8251_TAG, i8251_device, data_r, data_w)
// AM_RANGE(0xc3, 0xc3) AM_DEVREADWRITE(PC8011_CH2_I8251_TAG, i8251_device, status_r, control_w)
// AM_RANGE(0xc8, 0xc8) RS-232 output enable?
// AM_RANGE(0xca, 0xca) RS-232 output disable?
// AM_RANGE(0xd0, 0xd3) AM_DEVREADWRITE(PC8011_IEEE488_I8255A_TAG, i8255_device, read, write)
// AM_RANGE(0xd8, 0xd8) AM_READ(pc8011_ieee488_control_signal_input_r)
// AM_RANGE(0xda, 0xda) AM_READ(pc8011_ieee488_bus_address_mode_r)
// AM_RANGE(0xdc, 0xdc) AM_WRITE(pc8011_ieee488_nrfd_w)
// AM_RANGE(0xde, 0xde) AM_WRITE(pc8011_ieee488_bus_mode_control_w)
// AM_RANGE(0xe0, 0xe3) AM_WRITE(expansion_storage_mode_w)
// AM_RANGE(0xe4, 0xe4) AM_MIRROR(0x01) AM_WRITE(irq_level_w)
// AM_RANGE(0xe6, 0xe6) AM_WRITE(irq_mask_w)
// AM_RANGE(0xe7, 0xe7) AM_WRITE(pc8012_memory_mode_w)
// AM_RANGE(0xe8, 0xfb) unused
AM_RANGE(0xfc, 0xff) AM_DEVREADWRITE(I8255A_TAG, i8255_device, read, write)
ADDRESS_MAP_END
static ADDRESS_MAP_START( pc8001mk2_mem, AS_PROGRAM, 8, pc8001mk2_state )
AM_RANGE(0x0000, 0x5fff) AM_RAMBANK("bank1")
AM_RANGE(0x6000, 0x7fff) AM_RAMBANK("bank2")
AM_RANGE(0x8000, 0xbfff) AM_RAMBANK("bank3")
AM_RANGE(0xc000, 0xffff) AM_RAMBANK("bank4")
ADDRESS_MAP_END
static ADDRESS_MAP_START( pc8001mk2_io, AS_IO, 8, pc8001mk2_state )
AM_IMPORT_FROM(pc8001_io)
AM_RANGE(0x30, 0x30) AM_WRITE(port30_w)
AM_RANGE(0x31, 0x31) AM_WRITE(port31_w)
// AM_RANGE(0x5c, 0x5c) AM_WRITE(gram_on_w)
// AM_RANGE(0x5f, 0x5f) AM_WRITE(gram_off_w)
// AM_RANGE(0xe8, 0xe8) kanji_address_lo_w, kanji_data_lo_r
// AM_RANGE(0xe9, 0xe9) kanji_address_hi_w, kanji_data_hi_r
// AM_RANGE(0xea, 0xea) kanji_readout_start_w
// AM_RANGE(0xeb, 0xeb) kanji_readout_end_w
// AM_RANGE(0xf3, 0xf3) DMA type disk unit interface selection port
// AM_RANGE(0xf4, 0xf4) DMA type 8 inch control
// AM_RANGE(0xf5, 0xf5) DMA type 8 inch margin control
// AM_RANGE(0xf6, 0xf6) DMA type 8 inch FDC status
// AM_RANGE(0xf7, 0xf7) DMA type 8 inch FDC data register
// AM_RANGE(0xf8, 0xf8) DMA type 5 inch control
// AM_RANGE(0xf9, 0xf9) DMA type 5 inch margin control
// AM_RANGE(0xfa, 0xfa) DMA type 5 inch FDC status
// AM_RANGE(0xfb, 0xfb) DMA type 5 inch FDC data register
ADDRESS_MAP_END
/* Input Ports */
static INPUT_PORTS_START( pc8001 )
PORT_START("Y0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD))
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD))
PORT_START("Y1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad =") PORT_CODE(KEYCODE_PGUP)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad ,") PORT_CODE(KEYCODE_PGDN)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD))
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13)
PORT_START("Y2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_START("Y3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_START("Y4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_START("Y5")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\xA5') PORT_CHAR('|')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_START("Y6")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_START("Y7")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(" _") PORT_CODE(KEYCODE_DEL) PORT_CHAR(0) PORT_CHAR('_')
PORT_START("Y8")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Clr Home") PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Del Ins") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_CHAR(UCHAR_MAMEKEY(INSERT))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Grph") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(F7))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Kana") PORT_CODE(KEYCODE_LCONTROL) PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(F6))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
PORT_START("Y9")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Stop") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_START("DSW1")
INPUT_PORTS_END
/* uPD3301 Interface */
static const rgb_t PALETTE_PC8001[] =
{
rgb_t::black,
rgb_t(0x00, 0x00, 0xff),
rgb_t(0xff, 0x00, 0x00),
rgb_t(0xff, 0x00, 0xff),
rgb_t(0x00, 0xff, 0x00),
rgb_t(0x00, 0xff, 0xff),
rgb_t(0xff, 0xff, 0x00),
rgb_t::white
};
UPD3301_DRAW_CHARACTER_MEMBER( pc8001_state::pc8001_display_pixels )
{
UINT8 data = m_char_rom->base()[(cc << 3) | lc];
int i;
if (lc >= 8) return;
if (csr) data = 0xff;
if (m_width80)
{
for (i = 0; i < 8; i++)
{
int color = BIT(data, 7) ^ rvv;
bitmap.pix32(y, (sx * 8) + i) = PALETTE_PC8001[color ? 7 : 0];
data <<= 1;
}
}
else
{
if (sx % 2) return;
for (i = 0; i < 8; i++)
{
int color = BIT(data, 7) ^ rvv;
bitmap.pix32(y, (sx/2 * 16) + (i * 2)) = PALETTE_PC8001[color ? 7 : 0];
bitmap.pix32(y, (sx/2 * 16) + (i * 2) + 1) = PALETTE_PC8001[color ? 7 : 0];
data <<= 1;
}
}
}
/* 8257 Interface */
WRITE_LINE_MEMBER( pc8001_state::hrq_w )
{
/* HACK - this should be connected to the BUSREQ line of Z80 */
m_maincpu->set_input_line(INPUT_LINE_HALT, state);
/* HACK - this should be connected to the BUSACK line of Z80 */
m_dma->hlda_w(state);
}
READ8_MEMBER( pc8001_state::dma_mem_r )
{
address_space &program = m_maincpu->space(AS_PROGRAM);
return program.read_byte(offset);
}
/* Machine Initialization */
void pc8001_state::machine_start()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
/* initialize RTC */
m_rtc->cs_w(1);
m_rtc->oe_w(1);
/* initialize DMA */
m_dma->ready_w(1);
/* setup memory banking */
UINT8 *ram = m_ram->pointer();
membank("bank1")->configure_entry(1, m_rom->base());
program.install_read_bank(0x0000, 0x5fff, "bank1");
program.unmap_write(0x0000, 0x5fff);
switch (m_ram->size())
{
case 16*1024:
membank("bank3")->configure_entry(0, ram);
program.unmap_readwrite(0x6000, 0xbfff);
program.unmap_readwrite(0x8000, 0xbfff);
program.install_readwrite_bank(0xc000, 0xffff, "bank3");
break;
case 32*1024:
membank("bank3")->configure_entry(0, ram);
program.unmap_readwrite(0x6000, 0xbfff);
program.install_readwrite_bank(0x8000, 0xffff, "bank3");
break;
case 64*1024:
membank("bank1")->configure_entry(0, ram);
membank("bank2")->configure_entry(0, ram + 0x6000);
membank("bank3")->configure_entry(0, ram + 0x8000);
program.install_readwrite_bank(0x0000, 0x5fff, "bank1");
program.install_readwrite_bank(0x6000, 0xbfff, "bank2");
program.install_readwrite_bank(0x8000, 0xffff, "bank3");
membank("bank2")->set_entry(0);
break;
}
membank("bank1")->set_entry(1);
membank("bank3")->set_entry(0);
/* register for state saving */
save_item(NAME(m_width80));
save_item(NAME(m_color));
}
/* Machine Drivers */
static MACHINE_CONFIG_START( pc8001, pc8001_state )
/* basic machine hardware */
MCFG_CPU_ADD(Z80_TAG, Z80, 4000000)
MCFG_CPU_PROGRAM_MAP(pc8001_mem)
MCFG_CPU_IO_MAP(pc8001_io)
/* video hardware */
MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_UPDATE_DEVICE(UPD3301_TAG, upd3301_device, screen_update)
MCFG_SCREEN_SIZE(640, 220)
MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 200-1)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
/* devices */
MCFG_DEVICE_ADD(I8251_TAG, I8251, 0)
MCFG_DEVICE_ADD(I8255A_TAG, I8255A, 0)
MCFG_DEVICE_ADD(I8257_TAG, I8257, 4000000)
MCFG_I8257_OUT_HRQ_CB(WRITELINE(pc8001_state, hrq_w))
MCFG_I8257_IN_MEMR_CB(READ8(pc8001_state, dma_mem_r))
MCFG_I8257_OUT_IOW_2_CB(DEVWRITE8(UPD3301_TAG, upd3301_device, dack_w))
MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, NOOP, NOOP)
MCFG_DEVICE_ADD(UPD3301_TAG, UPD3301, 14318180)
MCFG_UPD3301_CHARACTER_WIDTH(8)
MCFG_UPD3301_DRAW_CHARACTER_CALLBACK_OWNER(pc8001_state, pc8001_display_pixels)
MCFG_UPD3301_VRTC_CALLBACK(DEVWRITELINE(I8257_TAG, i8257_device, dreq2_w))
MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_devices, "printer")
MCFG_CENTRONICS_ACK_HANDLER(WRITELINE(pc8001_state, write_centronics_ack))
MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(pc8001_state, write_centronics_busy))
MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", CENTRONICS_TAG)
MCFG_CASSETTE_ADD("cassette")
MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED)
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("16K")
MCFG_RAM_EXTRA_OPTIONS("32K,64K")
MACHINE_CONFIG_END
static MACHINE_CONFIG_START( pc8001mk2, pc8001mk2_state )
/* basic machine hardware */
MCFG_CPU_ADD(Z80_TAG, Z80, 4000000)
MCFG_CPU_PROGRAM_MAP(pc8001mk2_mem)
MCFG_CPU_IO_MAP(pc8001mk2_io)
/* video hardware */
MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_UPDATE_DEVICE(UPD3301_TAG, upd3301_device, screen_update)
MCFG_SCREEN_SIZE(640, 220)
MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 200-1)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
/* devices */
MCFG_DEVICE_ADD(I8251_TAG, I8251, 0)
MCFG_DEVICE_ADD(I8255A_TAG, I8255A, 0)
MCFG_DEVICE_ADD(I8257_TAG, I8257, 4000000)
MCFG_I8257_OUT_HRQ_CB(WRITELINE(pc8001_state, hrq_w))
MCFG_I8257_IN_MEMR_CB(READ8(pc8001_state, dma_mem_r))
MCFG_I8257_OUT_IOW_2_CB(DEVWRITE8(UPD3301_TAG, upd3301_device, dack_w))
MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, NOOP, NOOP)
MCFG_DEVICE_ADD(UPD3301_TAG, UPD3301, 14318180)
MCFG_UPD3301_CHARACTER_WIDTH(8)
MCFG_UPD3301_DRAW_CHARACTER_CALLBACK_OWNER(pc8001_state, pc8001_display_pixels)
MCFG_UPD3301_VRTC_CALLBACK(DEVWRITELINE(I8257_TAG, i8257_device, dreq2_w))
MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_devices, "printer")
MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", CENTRONICS_TAG)
MCFG_CASSETTE_ADD("cassette")
MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED)
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
MACHINE_CONFIG_END
/* ROMs */
ROM_START( pc8001 )
ROM_REGION( 0x6000, Z80_TAG, 0 )
ROM_SYSTEM_BIOS( 0, "v101", "N-BASIC v1.01" )
ROMX_LOAD( "n80v101.rom", 0x00000, 0x6000, CRC(a2cc9f22) SHA1(6d2d838de7fea20ddf6601660d0525d5b17bf8a3), ROM_BIOS(1) )
ROM_SYSTEM_BIOS( 1, "v102", "N-BASIC v1.02" )
ROMX_LOAD( "n80v102.rom", 0x00000, 0x6000, CRC(ed01ca3f) SHA1(b34a98941499d5baf79e7c0e5578b81dbede4a58), ROM_BIOS(2) )
ROM_SYSTEM_BIOS( 2, "v110", "N-BASIC v1.10" )
ROMX_LOAD( "n80v110.rom", 0x00000, 0x6000, CRC(1e02d93f) SHA1(4603cdb7a3833e7feb257b29d8052c872369e713), ROM_BIOS(3) )
ROM_REGION( 0x800, UPD3301_TAG, 0)
ROM_LOAD( "font.rom", 0x000, 0x800, CRC(56653188) SHA1(84b90f69671d4b72e8f219e1fe7cd667e976cf7f) )
ROM_END
ROM_START( pc8001mk2 )
ROM_REGION( 0x8000, Z80_TAG, 0 )
ROM_LOAD( "n80_2.rom", 0x00000, 0x8000, CRC(03cce7b6) SHA1(c12d34e42021110930fed45a8af98db52136f1fb) )
ROM_REGION( 0x800, UPD3301_TAG, 0)
ROM_LOAD( "font.rom", 0x0000, 0x0800, CRC(56653188) SHA1(84b90f69671d4b72e8f219e1fe7cd667e976cf7f) )
ROM_REGION( 0x20000, "kanji", 0)
ROM_LOAD( "kanji1.rom", 0x00000, 0x20000, CRC(6178bd43) SHA1(82e11a177af6a5091dd67f50a2f4bafda84d6556) )
ROM_END
/* System Drivers */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1979, pc8001, 0, 0, pc8001, pc8001, driver_device, 0, "Nippon Electronic Company", "PC-8001", MACHINE_NOT_WORKING )
COMP( 1983, pc8001mk2, pc8001, 0, pc8001mk2, pc8001, driver_device, 0, "Nippon Electronic Company", "PC-8001mkII", MACHINE_NOT_WORKING )