/*************************************************************************** Elektronika MK-85 12/05/2009 Skeleton driver. http://www.taswegian.com/MOSCOW/mk-85.html This is a Soviet computer-calculator, very similar in looks to the Sharp. It has a LCD display. Models: MK-85: 2K of RAM MK-85M: 6K of RAM MK-85C: Military cryptographic device. Typing text into it produces a string of numbers. ****************************************************************************/ #include "emu.h" #include "cpu/t11/t11.h" class mk85_state : public driver_device { public: mk85_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } virtual void machine_reset(); virtual void video_start(); UINT32 screen_update_mk85(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_device m_maincpu; }; static ADDRESS_MAP_START(mk85_mem, AS_PROGRAM, 16, mk85_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE( 0x0000, 0x3fff ) AM_ROM AM_MIRROR(0x4000) AM_RANGE( 0x8000, 0xffff ) AM_RAM ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( mk85 ) INPUT_PORTS_END void mk85_state::machine_reset() { } void mk85_state::video_start() { } UINT32 mk85_state::screen_update_mk85(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { return 0; } static MACHINE_CONFIG_START( mk85, mk85_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",T11, XTAL_4MHz) MCFG_T11_INITIAL_MODE(5 << 13) /* start from 0000 */ MCFG_CPU_PROGRAM_MAP(mk85_mem) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(640, 480) MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1) MCFG_SCREEN_UPDATE_DRIVER(mk85_state, screen_update_mk85) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") MACHINE_CONFIG_END /* ROM definition */ ROM_START( mk85 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "mk85.rom", 0x0000, 0x4000, CRC(398e4fd1) SHA1(5e2f877d0f451b46840f01190004552bad5248c8)) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1986, mk85, 0, 0, mk85, mk85, driver_device, 0, "Elektronika", "MK-85", GAME_NOT_WORKING | GAME_NO_SOUND)