diff options
Diffstat (limited to 'src/mess/drivers/cvicny.c')
-rw-r--r-- | src/mess/drivers/cvicny.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mess/drivers/cvicny.c b/src/mess/drivers/cvicny.c new file mode 100644 index 00000000000..a49c0cad05d --- /dev/null +++ b/src/mess/drivers/cvicny.c @@ -0,0 +1,147 @@ +/*************************************************************************** + + CVICNY8080 - Practice-z80 - a homebrew from Czechoslavakia. + + More data at : + http://www.nostalcomp.cz/cvicny8080.php + + 21/OCT/2011 New working driver. [Robbbert] + + Keys: + 0-9,A-F : hexadecimal numbers + ADR : enter an address to work with. After the 4 digits are entered, + the data at that address shows, and you can modify the data. + + (inc) : Enter the data into memory, and increment the address by 1. + GO : execute the program located at the current address. + + Pasting: + 0-F : as is + + (inc) : ^ + ADR : - + GO : X + + Test Paste: + 11^22^33^44^55^66^77^88^99^-0800 + Now press up-arrow to confirm the data has been entered. + + ToDo: + - When ADR is pressed, sometimes a segment stays alight. Bug? + - Blank the display if digits aren't being refreshed + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "cvicny.lh" + +class cvicny_state : public driver_device +{ +public: + cvicny_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_digit_last(0) + { } + + required_device<cpu_device> m_maincpu; + DECLARE_READ8_MEMBER(key_r); + DECLARE_WRITE8_MEMBER(digit_w); + DECLARE_WRITE8_MEMBER(segment_w ); + UINT8 m_digit; + UINT8 m_digit_last; +}; + +WRITE8_MEMBER( cvicny_state::segment_w ) // output segments on the selected digit +{ + if (m_digit != m_digit_last) + output_set_digit_value(m_digit, data); + + m_digit_last = m_digit; +} + +WRITE8_MEMBER( cvicny_state::digit_w ) // set keyboard scanning row; set digit to display +{ + m_digit = data & 7; +} + +READ8_MEMBER( cvicny_state::key_r ) +{ + UINT8 data; + char kbdrow[6]; + sprintf(kbdrow,"X%d",m_digit); + data = ioport(kbdrow)->read(); + return ((data << 4) ^ 0xf0) | data; +} + +static ADDRESS_MAP_START( cvicny_mem, AS_PROGRAM, 8, cvicny_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_ROM // 1 x 2716 + AM_RANGE(0x0800, 0x0bff) AM_RAM AM_MIRROR(0x400) // 2x 2114 static ram + AM_RANGE(0x1000, 0x17ff) AM_READ(key_r) + AM_RANGE(0x1800, 0x1fff) AM_WRITE(digit_w) + AM_RANGE(0x2000, 0x27ff) AM_WRITE(segment_w) +ADDRESS_MAP_END + + +/* Input ports */ +static INPUT_PORTS_START( cvicny ) + PORT_START("X0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') + 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("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') + + PORT_START("X1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') + + PORT_START("X2") + 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("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') + + PORT_START("X3") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') + + PORT_START("X4") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ADR") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("GO") PORT_CODE(KEYCODE_X) PORT_CHAR('X') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("X5") + PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("X6") + PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("X7") + PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + + +static MACHINE_CONFIG_START( cvicny, cvicny_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_2MHz) + MCFG_CPU_PROGRAM_MAP(cvicny_mem) + + /* video hardware */ + MCFG_DEFAULT_LAYOUT(layout_cvicny) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( cvicny ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD("cvicny8080.bin", 0x0000, 0x05ea, CRC(e6119052) SHA1(d03c2cbfd047f0d090a787fbbde6353593cc2dd8) ) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1984, cvicny, 0, 0, cvicny, cvicny, driver_device, 0, "<unknown>", "Practice-z80", GAME_NO_SOUND_HW) |