// 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, i8257_r, i8257_w) // 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; } } } /* 8255 Interface */ static I8255A_INTERFACE( ppi_intf ) { DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL }; /* 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->i8257_hlda_w(state); } WRITE8_MEMBER( pc8001_state::dma_mem_w ) { //if (channel == 2) { m_crtc->dack_w(space, offset, data); } } READ8_MEMBER( pc8001_state::dma_io_r ) { address_space &program = m_maincpu->space(AS_PROGRAM); return program.read_byte(offset); } WRITE8_MEMBER( pc8001_state::dma_io_w ) { address_space &program = m_maincpu->space(AS_PROGRAM); program.write_byte(offset, data); } static I8257_INTERFACE( dmac_intf ) { DEVCB_DRIVER_LINE_MEMBER(pc8001_state, hrq_w), DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_DRIVER_MEMBER(pc8001_state, dma_mem_w), { DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_r), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_r), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_r), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_r) }, { DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_w), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_w), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_w), DEVCB_DRIVER_MEMBER(pc8001_state, dma_io_w) }, }; /* 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->i8257_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)); } /* Cassette Configuration */ static const cassette_interface pc8001_cassette_interface = { cassette_default_formats, NULL, (cassette_state)(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED), NULL, NULL }; /* 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_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ 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_I8255A_ADD(I8255A_TAG, ppi_intf) MCFG_I8257_ADD(I8257_TAG, 4000000, dmac_intf) MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, NULL, NULL) 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, i8257_drq2_w)) MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_printers, "image") 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", pc8001_cassette_interface) 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_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ 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_I8255A_ADD(I8255A_TAG, ppi_intf) MCFG_I8257_ADD(I8257_TAG, 4000000, dmac_intf) MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, NULL, NULL) 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, i8257_drq2_w)) MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_printers, "image") MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", CENTRONICS_TAG) MCFG_CASSETTE_ADD("cassette", pc8001_cassette_interface) 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", GAME_NOT_WORKING ) COMP( 1983, pc8001mk2, pc8001, 0, pc8001mk2, pc8001, driver_device, 0, "Nippon Electronic Company", "PC-8001mkII", GAME_NOT_WORKING )