/*************************************************************************** Science of Cambridge MK-14 20/11/2009 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/scmp/scmp.h" #include "machine/ins8154.h" #include "mk14.lh" class mk14_state : public driver_device { public: mk14_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } DECLARE_READ8_MEMBER(keyboard_r); DECLARE_WRITE8_MEMBER(display_w); virtual void machine_reset(); required_device m_maincpu; }; /* 000-1FF 512 byte SCIOS ROM Decoded by 0xxx 200-3FF ROM Shadow / Expansion RAM 400-5FF ROM Shadow / Expansion RAM 600-7FF ROM Shadow / Expansion RAM 800-87F 128 bytes I/O chip RAM Decoded by 1xx0 880-8FF I/O Ports Decoded by 1xx0 900-9FF Keyboard & Display Decoded by 1x01 A00-AFF I/O Port & RAM Shadow B00-BFF 256 bytes RAM (Extended) / VDU RAM Decoded by 1011 C00-CFF I/O Port & RAM Shadow D00-DFF Keyboard & Display Shadow E00-EFF I/O Port & RAM Shadow F00-FFF 256 bytes RAM (Standard) / VDU RAM Decoded by 1111 */ READ8_MEMBER( mk14_state::keyboard_r ) { if (offset < 8) { char kbdrow[6]; sprintf(kbdrow,"X%X",offset); return ioport(kbdrow)->read(); } else return 0xff; } WRITE8_MEMBER( mk14_state::display_w ) { if (offset < 8 ) output_set_digit_value(offset, data); else { //logerror("write %02x to %02x\n",data,offset); } } static ADDRESS_MAP_START(mk14_mem, AS_PROGRAM, 8, mk14_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0x0fff) AM_RANGE(0x000, 0x1ff) AM_ROM AM_MIRROR(0x600) // ROM AM_RANGE(0x800, 0x87f) AM_RAM AM_MIRROR(0x600) // 128 I/O chip RAM AM_RANGE(0x880, 0x8ff) AM_DEVREADWRITE("ic8", ins8154_device, ins8154_r, ins8154_w) AM_MIRROR(0x600) // I/O AM_RANGE(0x900, 0x9ff) AM_READWRITE(keyboard_r, display_w) AM_MIRROR(0x400) AM_RANGE(0xb00, 0xbff) AM_RAM // VDU RAM AM_RANGE(0xf00, 0xfff) AM_RAM // Standard RAM ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( mk14 ) PORT_START("X0") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_START("X1") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_START("X2") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("GO") PORT_CODE(KEYCODE_F1) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_START("X3") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("MEM") PORT_CODE(KEYCODE_F2) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_START("X4") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("AB") PORT_CODE(KEYCODE_F3) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_START("X5") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_START("X6") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_START("X7") PORT_BIT(0x0F, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TERM") PORT_CODE(KEYCODE_F4) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) INPUT_PORTS_END void mk14_state::machine_reset() { } static MACHINE_CONFIG_START( mk14, mk14_state ) /* basic machine hardware */ // IC1 1SP-8A/600 (8060) SC/MP Microprocessor MCFG_CPU_ADD("maincpu", INS8060, XTAL_4_433619MHz) MCFG_CPU_PROGRAM_MAP(mk14_mem) /* video hardware */ MCFG_DEFAULT_LAYOUT(layout_mk14) /* devices */ MCFG_DEVICE_ADD("ic8", INS8154, 0) MACHINE_CONFIG_END /* ROM definition */ ROM_START( mk14 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) // IC2,3 74S571 512 x 4 bit ROM ROM_LOAD( "scios.bin", 0x0000, 0x0200, CRC(8b667daa) SHA1(802dc637ce5391a2a6627f76f919b12a869b56ef)) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1977, mk14, 0, 0, mk14, mk14, driver_device, 0, "Science of Cambridge", "MK-14", GAME_NO_SOUND)