// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** DEC DCT11-EM 03/12/2010 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/t11/t11.h" class dct11em_state : public driver_device { public: dct11em_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } virtual void machine_reset() override; virtual void video_start() override; UINT32 screen_update_dct11em(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_device m_maincpu; }; static ADDRESS_MAP_START( dct11em_mem, AS_PROGRAM, 16, dct11em_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE( 0x0000, 0x0fff ) AM_RAM // RAM AM_RANGE( 0x2000, 0x2fff ) AM_RAM // Optional RAM AM_RANGE( 0xa000, 0xdfff ) AM_ROM // RAM ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( dct11em ) INPUT_PORTS_END void dct11em_state::machine_reset() { } void dct11em_state::video_start() { } UINT32 dct11em_state::screen_update_dct11em(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { return 0; } static MACHINE_CONFIG_START( dct11em, dct11em_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",T11, 7500000) // 7.5MHz XTAL MCFG_T11_INITIAL_MODE(0x1403) /* according to specs */ MCFG_CPU_PROGRAM_MAP(dct11em_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(dct11em_state, screen_update_dct11em) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_MONOCHROME("palette") MACHINE_CONFIG_END /* ROM definition */ ROM_START( dct11em ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) // Highest address line inverted ROM_LOAD16_BYTE( "23-213e4.bin", 0x8000, 0x2000, CRC(bdd82f39) SHA1(347deeff77596b67eee27a39a9c40075fcf5c10d)) ROM_LOAD16_BYTE( "23-214e4.bin", 0x8001, 0x2000, CRC(b523dae8) SHA1(cd1a64a2bce9730f7a9177d391663919c7f56073)) ROM_COPY("maincpu", 0x8000, 0xc000, 0x2000) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1983, dct11em, 0, 0, dct11em, dct11em, driver_device, 0, "Digital Equipment Corporation", "DCT11-EM", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)