// license:BSD-3-Clause // copyright-holders:Sandro Ronco /*************************************************************************** Schachcomputer SC2 Note: The HW is very similar to Fidelity Chess Challenger series (see fidelz80.c) 12/05/2009 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/z80pio.h" #include "sound/beep.h" #include "sc2.lh" class sc2_state : public driver_device { public: sc2_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_beep(*this, "beeper") , m_maincpu(*this, "maincpu") { } required_device m_beep; DECLARE_READ8_MEMBER(pio_port_a_r); DECLARE_READ8_MEMBER(pio_port_b_r); DECLARE_WRITE8_MEMBER(pio_port_a_w); DECLARE_WRITE8_MEMBER(pio_port_b_w); DECLARE_READ8_MEMBER(sc2_beep); UINT8 m_kp_matrix; UINT8 m_led_7seg_data[4]; UINT8 m_led_selected; UINT8 m_digit_data; UINT8 m_beep_state; void sc2_update_display(); virtual void machine_start(); virtual void machine_reset(); required_device m_maincpu; }; READ8_MEMBER( sc2_state::sc2_beep ) { //if (!space.debugger_access()) { m_beep_state = ~m_beep_state; m_beep->set_state(m_beep_state); } return 0xff; } static ADDRESS_MAP_START(sc2_mem, AS_PROGRAM, 8, sc2_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE( 0x0000, 0x0fff ) AM_ROM AM_RANGE( 0x1000, 0x13ff ) AM_RAM AM_RANGE( 0x2000, 0x33ff ) AM_ROM AM_RANGE( 0x3c00, 0x3c00 ) AM_READ(sc2_beep) ADDRESS_MAP_END static ADDRESS_MAP_START(sc2_io, AS_IO, 8, sc2_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x03) AM_MIRROR(0xfc) AM_DEVREADWRITE("z80pio", z80pio_device, read, write) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( sc2 ) PORT_START("LINE1") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_UNUSED PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_START("LINE2") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("A1") PORT_CODE(KEYCODE_1) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("B2") PORT_CODE(KEYCODE_2) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("C3") PORT_CODE(KEYCODE_3) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("D4") PORT_CODE(KEYCODE_4) PORT_START("LINE3") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("E5") PORT_CODE(KEYCODE_5) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("F6") PORT_CODE(KEYCODE_6) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("G7") PORT_CODE(KEYCODE_7) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("H8") PORT_CODE(KEYCODE_8) PORT_START("LINE4") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("P") PORT_CODE(KEYCODE_O) INPUT_PORTS_END void sc2_state::machine_start() { save_item(NAME(m_led_7seg_data)); save_item(NAME(m_kp_matrix)); save_item(NAME(m_led_selected)); save_item(NAME(m_digit_data)); save_item(NAME(m_beep_state)); } void sc2_state::machine_reset() { m_kp_matrix = 0; m_led_selected = 0; m_digit_data = 0; m_beep_state = 0; memset(m_led_7seg_data, 0, ARRAY_LENGTH(m_led_7seg_data)); } void sc2_state::sc2_update_display() { UINT8 digit_data = BITSWAP8( m_digit_data,7,0,1,2,3,4,5,6 ) & 0x7f; if (!BIT(m_led_selected, 0)) { output_set_digit_value(0, digit_data); m_led_7seg_data[0] = digit_data; output_set_led_value(0, BIT(m_digit_data, 7)); } if (!BIT(m_led_selected, 1)) { output_set_digit_value(1, digit_data); m_led_7seg_data[1] = digit_data; output_set_led_value(1, BIT(m_digit_data, 7)); } if (!BIT(m_led_selected, 2)) { output_set_digit_value(2, digit_data); m_led_7seg_data[2] = digit_data; } if (!BIT(m_led_selected, 3)) { output_set_digit_value(3, digit_data); m_led_7seg_data[3] = digit_data; } } READ8_MEMBER( sc2_state::pio_port_a_r ) { return m_digit_data; } READ8_MEMBER( sc2_state::pio_port_b_r ) { UINT8 data = m_led_selected & 0x0f; if (BIT(m_kp_matrix, 0)) { data |= ioport("LINE1")->read(); } if (BIT(m_kp_matrix, 1)) { data |= ioport("LINE2")->read(); } if (BIT(m_kp_matrix, 2)) { data |= ioport("LINE3")->read(); } if (BIT(m_kp_matrix, 3)) { data |= ioport("LINE4")->read(); } return data; } WRITE8_MEMBER( sc2_state::pio_port_a_w ) { m_digit_data = data; } WRITE8_MEMBER( sc2_state::pio_port_b_w ) { if (data != 0xf1 && data != 0xf2 && data != 0xf4 && data != 0xf8) { m_led_selected = data; sc2_update_display(); } else m_kp_matrix = data; }; static MACHINE_CONFIG_START( sc2, sc2_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) MCFG_CPU_PROGRAM_MAP(sc2_mem) MCFG_CPU_IO_MAP(sc2_io) /* video hardware */ MCFG_DEFAULT_LAYOUT(layout_sc2) /* devices */ MCFG_DEVICE_ADD("z80pio", Z80PIO, XTAL_4MHz) MCFG_Z80PIO_IN_PA_CB(READ8(sc2_state, pio_port_a_r)) MCFG_Z80PIO_OUT_PA_CB(WRITE8(sc2_state, pio_port_a_w)) MCFG_Z80PIO_IN_PB_CB(READ8(sc2_state, pio_port_b_r)) MCFG_Z80PIO_OUT_PB_CB(WRITE8(sc2_state, pio_port_b_w)) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO( "mono" ) MCFG_SOUND_ADD( "beeper", BEEP, 0 ) MCFG_SOUND_ROUTE( ALL_OUTPUTS, "mono", 0.50 ) MACHINE_CONFIG_END /* ROM definition */ ROM_START( sc2 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "bm008.bin", 0x0000, 0x0400, CRC(3023ea82) SHA1(07020d153d802c672c39e1af3c716dbe35e23f08)) ROM_LOAD( "bm009.bin", 0x0400, 0x0400, CRC(6a34814e) SHA1(e58ae6615297b028db135a48a8f9e186a4220f4f)) ROM_LOAD( "bm010.bin", 0x0800, 0x0400, CRC(deab0373) SHA1(81c9a7197eef8d9131e47ecd2ec35b943caee54e)) ROM_LOAD( "bm011.bin", 0x0c00, 0x0400, CRC(c8282339) SHA1(8d6b8861281e967a77609b6d77e80afd47d28ed2)) ROM_LOAD( "bm012.bin", 0x2000, 0x0400, CRC(2e6a4294) SHA1(7b9bd191c9ec73139a65c3a339ab88e1f3eb5ed2)) ROM_LOAD( "bm013.bin", 0x2400, 0x0400, CRC(3e02eb42) SHA1(2e4a9a8fd04c202c9518550d7e8cf9bfea394153)) ROM_LOAD( "bm014.bin", 0x2800, 0x0400, CRC(538d449e) SHA1(c4186995b69e97740e01eaff84a20d49d03d180f)) ROM_LOAD( "bm015.bin", 0x2c00, 0x0400, CRC(b4991dca) SHA1(6a6cdddf5c4afa24773acf693f58c34b99c8d328)) ROM_LOAD( "bm016.bin", 0x3000, 0x0400, CRC(4fe0853a) SHA1(c2253e320778b0ea468fb54f26ae83d07f9700e6)) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1981, sc2, 0, 0, sc2, sc2, driver_device, 0, "VEB Mikroelektronik Erfurt", "Schachcomputer SC2", GAME_SUPPORTS_SAVE)