// license: // copyright-holders: /*************************************************************************** ***************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "emupal.h" #include "screen.h" #include "speaker.h" #define MAIN_CLOCK XTAL(8'000'000) class xxx_state : public driver_device { public: xxx_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_palette(*this, "palette") { } void xxx(machine_config &config); protected: // driver_device overrides virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; private: // screen updates uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void xxx_palette(palette_device &palette) const; void xxx_io(address_map &map); void xxx_map(address_map &map); // devices required_device m_maincpu; required_device m_palette; }; void xxx_state::video_start() { } uint32_t xxx_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect ) { return 0; } void xxx_state::xxx_map(address_map &map) { map(0x0000, 0x7fff).rom(); } void xxx_state::xxx_io(address_map &map) { map.global_mask(0xff); } static INPUT_PORTS_START( xxx ) /* dummy active high structure */ PORT_START("SYSA") PORT_DIPNAME( 0x01, 0x00, "SYSA" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x01, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x02, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x04, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x08, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x40, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x80, DEF_STR( On ) ) /* dummy active low structure */ PORT_START("DSWA") PORT_DIPNAME( 0x01, 0x01, "DSWA" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) INPUT_PORTS_END static const gfx_layout charlayout = { 8,8, RGN_FRAC(1,1), 1, { RGN_FRAC(0,1) }, { 0, 1, 2, 3, 4, 5, 6, 7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*8 }; static GFXDECODE_START( gfx_xxx ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) GFXDECODE_END void xxx_state::machine_start() { } void xxx_state::machine_reset() { } void xxx_state::xxx_palette(palette_device &palette) const { } void xxx_state::xxx(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, MAIN_CLOCK/2); m_maincpu->set_addrmap(AS_PROGRAM, &xxx_state::xxx_map); m_maincpu->set_addrmap(AS_IO, &xxx_state::xxx_io); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_screen_update(FUNC(xxx_state::screen_update)); screen.set_raw(MAIN_CLOCK/2, 442, 0, 320, 264, 0, 240); /* generic NTSC video timing at 320x240 */ screen.set_palette(m_palette); GFXDECODE(config, "gfxdecode", m_palette, gfx_xxx); PALETTE(config, m_palette, FUNC(xxx_state::xxx_palette), 8); /* sound hardware */ SPEAKER(config, "mono").front_center(); } /*************************************************************************** Machine driver(s) ***************************************************************************/ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) ROM_REGION( 0x10000, "gfx1", ROMREGION_ERASE00 ) // See src/emu/gamedrv.h for details // For a game: // GAME(YEAR,NAME,PARENT,MACHINE,INPUT,CLASS,DRIVER_INIT,MONITOR,COMPANY,FULLNAME,FLAGS) // For a console: // CONS(YEAR,NAME,PARENT,COMPAT,MACHINE,INPUT,CLASS,DRIVER_INIT,COMPANY,FULLNAME,FLAGS) // For a computer: // COMP(YEAR,NAME,PARENT,COMPAT,MACHINE,INPUT,CLASS,DRIVER_INIT,COMPANY,FULLNAME,FLAGS) // For a generic system: // SYST(YEAR,NAME,PARENT,COMPAT,MACHINE,INPUT,CLASS,DRIVER_INIT,COMPANY,FULLNAME,FLAGS) GAME( 198?, xxx, 0, xxx, xxx, xxx_state, empty_init, ROT0, "", "", MACHINE_IS_SKELETON )