diff options
Diffstat (limited to 'src/mess/drivers/pc4.c')
-rw-r--r-- | src/mess/drivers/pc4.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/mess/drivers/pc4.c b/src/mess/drivers/pc4.c new file mode 100644 index 00000000000..7a2fee5c288 --- /dev/null +++ b/src/mess/drivers/pc4.c @@ -0,0 +1,242 @@ +/*************************************************************************** + + VTech Laser PC4 + + Driver by Sandro Ronco + + I found no documentations about this, if you have documentation or schematic + please let me know. + + Notes: + - the LCD controller seems similar to a HD44780, but with more ddram and + uses the bit 0 and 2 of the "Function Set" (0x2?) that are unused in + the specifications of the HD44780 datasheet. + - INT and NMI interrupt lines cause "LOW BATTERY" signal + - chargen are taken from other driver, a real dump is required + + More info: + http://www.8bit-micro.com/laser.htm + http://www.euskalnet.net/ingepal/images/Vtech_Laser_PC4_1988.jpg + http://www.oldcomputermuseum.com/laser_pc4.html + +****************************************************************************/ + + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/rp5c01.h" +#include "rendlay.h" +#include "includes/pc4.h" + + +READ8_MEMBER( pc4_state::kb_r ) +{ + static const char *const bitnames[] = {"LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7"}; + UINT8 data = 0xff; + + for (int line=0; line<8; line++) + if (!(offset & (1<<line))) + data &= ioport(bitnames[line])->read(); + + return data; +} + +WRITE8_MEMBER( pc4_state::bank_w ) +{ + //printf("set bank %x\n", data); + membank("rombank")->set_entry(data&0x07); +} + +WRITE8_MEMBER( pc4_state::beep_w ) +{ + beep_set_state(m_beep, data&0x40); +} + +static ADDRESS_MAP_START(pc4_mem, AS_PROGRAM, 8, pc4_state) + AM_RANGE(0x0000, 0x3fff) AM_ROM + AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("rombank") + AM_RANGE(0x8000, 0xffff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START(pc4_io, AS_IO, 8, pc4_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x000f) AM_DEVREADWRITE("rtc", rp5c01_device, read, write) + AM_RANGE(0x1000, 0x1000) AM_WRITE(beep_w) + AM_RANGE(0x1fff, 0x1fff) AM_WRITE(bank_w) + + AM_RANGE(0x3000, 0x3000) AM_WRITE(lcd_control_w) + AM_RANGE(0x3001, 0x3001) AM_WRITE(lcd_data_w) + AM_RANGE(0x3002, 0x3002) AM_READ(lcd_control_r) + AM_RANGE(0x3003, 0x3003) AM_READ(lcd_data_r) + AM_RANGE(0x3005, 0x3005) AM_WRITE(lcd_offset_w) + + //keyboard read, offset used as matrix + AM_RANGE(0x5000, 0x50ff) AM_READ(kb_r) +ADDRESS_MAP_END + +static INPUT_PORTS_START( pc4 ) + PORT_START("LINE0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE1") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('/') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPSLOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE2") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('?') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE3") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE4") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("'") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('\"') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(DEL)) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE5") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE6") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('+') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED + + PORT_START("LINE7") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("NUMLOck") PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_UNUSED +INPUT_PORTS_END + +static PALETTE_INIT( pc4 ) +{ + palette_set_color(machine, 0, MAKE_RGB(138, 146, 148)); + palette_set_color(machine, 1, MAKE_RGB(92, 83, 88)); +} + +static const gfx_layout pc4_charlayout = +{ + 5, 8, /* 5 x 8 characters */ + 256, /* 256 characters */ + 1, /* 1 bits per pixel */ + { 0 }, /* no bitplanes */ + { 3, 4, 5, 6, 7}, + { 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8}, + 8*8 /* 8 bytes */ +}; + +static GFXDECODE_START( pc4 ) + GFXDECODE_ENTRY( "charset", 0x0000, pc4_charlayout, 0, 1 ) +GFXDECODE_END + +void pc4_state::machine_start() +{ + UINT8* rom_base = (UINT8 *)machine().root_device().memregion("maincpu")->base(); + + membank("rombank")->configure_entries(0, 8, rom_base, 0x4000); + membank("rombank")->set_entry(0); + + m_busy_timer = timer_alloc(BUSY_TIMER); + m_blink_timer = timer_alloc(BLINKING_TIMER); + m_blink_timer->adjust(attotime::from_msec(409), 0, attotime::from_msec(409)); + + m_ac = 0; + m_ac_mode = 0; + m_data_bus_flag = 0; + m_cursor_pos = 0; + m_display_on = 0; + m_cursor_on = 0; + m_shift_on = 0; + m_blink_on = 0; + m_direction = 1; + m_disp_shift = 0; + m_blink = 0; +} + +static RP5C01_INTERFACE( rtc_intf ) +{ + DEVCB_NULL +}; + +static MACHINE_CONFIG_START( pc4, pc4_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", Z80, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(pc4_mem) + MCFG_CPU_IO_MAP(pc4_io) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", LCD) + MCFG_SCREEN_REFRESH_RATE(72) + MCFG_SCREEN_UPDATE_DRIVER(pc4_state, screen_update) + MCFG_SCREEN_SIZE(240, 36) + MCFG_SCREEN_VISIBLE_AREA(0, 240-1, 0, 36-1) + MCFG_DEFAULT_LAYOUT(layout_lcd) + MCFG_PALETTE_LENGTH(2) + MCFG_PALETTE_INIT(pc4) + MCFG_GFXDECODE(pc4) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO( "mono" ) + MCFG_SOUND_ADD( BEEPER_TAG, BEEP, 0 ) + MCFG_SOUND_ROUTE( ALL_OUTPUTS, "mono", 1.00 ) + + MCFG_RP5C01_ADD("rtc", XTAL_32_768kHz, rtc_intf) +MACHINE_CONFIG_END + +ROM_START( pc4 ) + ROM_REGION( 0x20000, "maincpu", 0 ) + ROM_LOAD( "laser pc4 v4.14a.u2", 0x00000, 0x20000, CRC(f8dabf5d) SHA1(6988517b3ccb42df2b8d6e1517ff04b24458d146) ) + ROM_REGION( 0x0860, "charset", ROMREGION_ERASE ) + ROM_LOAD( "44780a00.bin", 0x0000, 0x0860, BAD_DUMP CRC(3a89024c) SHA1(5a87b68422a916d1b37b5be1f7ad0b3fb3af5a8d)) +ROM_END + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1990, pc4, 0, 0, pc4, pc4, driver_device, 0, "Laser Computer", "Laser PC4", GAME_NOT_WORKING ) |