diff options
author | 2012-08-21 10:41:19 +0000 | |
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committer | 2012-08-21 10:41:19 +0000 | |
commit | 7285b359d259b2ae0fdf85096571c386ec8c991a (patch) | |
tree | a027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/drivers/pc8001.c | |
parent | 67c425e90757876a6716b7867df30c0149912e74 (diff) |
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/drivers/pc8001.c')
-rw-r--r-- | src/mess/drivers/pc8001.c | 652 |
1 files changed, 652 insertions, 0 deletions
diff --git a/src/mess/drivers/pc8001.c b/src/mess/drivers/pc8001.c new file mode 100644 index 00000000000..117006b2d5a --- /dev/null +++ b/src/mess/drivers/pc8001.c @@ -0,0 +1,652 @@ +/* + + 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_centronics->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 + + */ +} + +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_r(); + data |= m_centronics->ack_r() << 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->strobe_w(BIT(data, 0)); + + m_rtc->clk_w(BIT(data, 2)); + m_rtc->stb_w(BIT(data, 1)); + + speaker_level_w(m_speaker, 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("KEY0") + AM_RANGE(0x01, 0x01) AM_READ_PORT("KEY1") + AM_RANGE(0x02, 0x02) AM_READ_PORT("KEY2") + AM_RANGE(0x03, 0x03) AM_READ_PORT("KEY3") + AM_RANGE(0x04, 0x04) AM_READ_PORT("KEY4") + AM_RANGE(0x05, 0x05) AM_READ_PORT("KEY5") + AM_RANGE(0x06, 0x06) AM_READ_PORT("KEY6") + AM_RANGE(0x07, 0x07) AM_READ_PORT("KEY7") + AM_RANGE(0x08, 0x08) AM_READ_PORT("KEY8") + AM_RANGE(0x09, 0x09) AM_READ_PORT("KEY9") + 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_LEGACY(I8257_TAG, 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_LEGACY(PC8011_CH1_I8251_TAG, i8251_device, data_r, data_w) +// AM_RANGE(0xc1, 0xc1) AM_DEVREADWRITE_LEGACY(PC8011_CH1_I8251_TAG, i8251_device, status_r, control_w) +// AM_RANGE(0xc2, 0xc2) AM_DEVREADWRITE_LEGACY(PC8011_CH2_I8251_TAG, i8251_device, data_r, data_w) +// AM_RANGE(0xc3, 0xc3) AM_DEVREADWRITE_LEGACY(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_LEGACY(PC8011_IEEE488_I8255A_TAG, i8255a_r, i8255a_w) +// 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("KEY0") + 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("KEY1") + 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("KEY2") + 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("KEY3") + 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("KEY4") + 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("KEY5") + 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("KEY6") + 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("KEY7") + 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("KEY8") + 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("KEY9") + 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 + +/* Video */ + +static PALETTE_INIT( pc8001 ) +{ +} + +void pc8001_state::video_start() +{ + // find memory regions + m_char_rom = memregion("chargen")->base(); +} + +/* uPD3301 Interface */ + +static UPD3301_DISPLAY_PIXELS( pc8001_display_pixels ) +{ + pc8001_state *state = device->machine().driver_data<pc8001_state>(); + + UINT8 data = state->m_char_rom[(cc << 3) | lc]; + int i; + + if (lc >= 8) return; + if (csr) data = 0xff; + + if (state->m_width80) + { + for (i = 0; i < 8; i++) + { + int color = BIT(data, 7) ^ rvv; + + bitmap.pix16(y, (sx * 8) + i) = color ? 7 : 0; + + data <<= 1; + } + } + else + { + if (sx % 2) return; + + for (i = 0; i < 8; i++) + { + int color = BIT(data, 7) ^ rvv; + + bitmap.pix16(y, (sx/2 * 16) + (i * 2)) = color ? 7 : 0; + bitmap.pix16(y, (sx/2 * 16) + (i * 2) + 1) = color ? 7 : 0; + + data <<= 1; + } + } +} + +static UPD3301_INTERFACE( pc8001_upd3301_intf ) +{ + SCREEN_TAG, + 8, + pc8001_display_pixels, + DEVCB_NULL, + DEVCB_DEVICE_LINE(I8257_TAG, i8257_drq2_w), + DEVCB_NULL, + DEVCB_NULL +}; + +/* 8251 Interface */ + +static const i8251_interface uart_intf = +{ + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL +}; + +/* 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 */ + i8257_hlda_w(m_dma, 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->memory().space(AS_PROGRAM); + + return program->read_byte(offset); +} + +WRITE8_MEMBER( pc8001_state::dma_io_w ) +{ + address_space *program = m_maincpu->memory().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) }, +}; + +/* uPD1990A Interface */ + +static UPD1990A_INTERFACE( rtc_intf ) +{ + DEVCB_NULL, + DEVCB_NULL +}; + +/* Machine Initialization */ + +void pc8001_state::machine_start() +{ + address_space *program = m_maincpu->memory().space(AS_PROGRAM); + + /* initialize RTC */ + m_rtc->cs_w(1); + m_rtc->oe_w(1); + + /* initialize DMA */ + i8257_ready_w(m_dma, 1); + + /* setup memory banking */ + UINT8 *ram = m_ram->pointer(); + + membank("bank1")->configure_entry(1, memregion("n80")->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) + + MCFG_PALETTE_LENGTH(8) + MCFG_PALETTE_INIT(pc8001) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) + + /* devices */ + MCFG_I8251_ADD(I8251_TAG, uart_intf) + MCFG_I8255A_ADD(I8255A_TAG, ppi_intf) + MCFG_I8257_ADD(I8257_TAG, 4000000, dmac_intf) + MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, rtc_intf) + MCFG_UPD3301_ADD(UPD3301_TAG, 14318180, pc8001_upd3301_intf) + + MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, standard_centronics) + MCFG_CASSETTE_ADD(CASSETTE_TAG, 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) + + MCFG_PALETTE_LENGTH(8) + MCFG_PALETTE_INIT(pc8001) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) + + /* devices */ + MCFG_I8251_ADD(I8251_TAG, uart_intf) + MCFG_I8255A_ADD(I8255A_TAG, ppi_intf) + MCFG_I8257_ADD(I8257_TAG, 4000000, dmac_intf) + MCFG_UPD1990A_ADD(UPD1990A_TAG, XTAL_32_768kHz, rtc_intf) + MCFG_UPD3301_ADD(UPD3301_TAG, 14318180, pc8001_upd3301_intf) + + MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, standard_centronics) + MCFG_CASSETTE_ADD(CASSETTE_TAG, pc8001_cassette_interface) + + MCFG_RAM_ADD(RAM_TAG) + MCFG_RAM_DEFAULT_SIZE("64K") +MACHINE_CONFIG_END + +/* ROMs */ + +ROM_START( pc8001 ) + ROM_REGION( 0x6000, "n80", 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, "chargen", 0) + ROM_LOAD( "font.rom", 0x000, 0x800, CRC(56653188) SHA1(84b90f69671d4b72e8f219e1fe7cd667e976cf7f) ) +ROM_END + +ROM_START( pc8001mk2 ) + ROM_REGION( 0x8000, "n80", 0 ) + ROM_LOAD( "n80_2.rom", 0x00000, 0x8000, CRC(03cce7b6) SHA1(c12d34e42021110930fed45a8af98db52136f1fb) ) + + ROM_REGION( 0x800, "chargen", 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 ) |