/*************************************************************************** General Processor Modello T 10/12/2012 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" class modellot_state : public driver_device { public: modellot_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu") , m_video_ram(*this, "video_ram") { } required_device m_maincpu; required_shared_ptr m_video_ram; UINT32 screen_update_modellot(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); virtual void machine_reset(); DECLARE_READ8_MEMBER(modellot_77); DECLARE_READ8_MEMBER(modellot_ff); }; static ADDRESS_MAP_START(modellot_mem, AS_PROGRAM, 8, modellot_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0xbfff) AM_RAM AM_RANGE(0xc000, 0xc3ff) AM_RAM AM_SHARE("video_ram") AM_RANGE(0xe000, 0xffff) AM_ROM ADDRESS_MAP_END static ADDRESS_MAP_START(modellot_io, AS_IO, 8, modellot_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x77, 0x77) AM_READ(modellot_77) AM_RANGE(0xff, 0xff) AM_READ(modellot_ff) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( modellot ) INPUT_PORTS_END READ8_MEMBER( modellot_state::modellot_77) { return 0x04; } READ8_MEMBER( modellot_state::modellot_ff) { return 0x00; } void modellot_state::machine_reset() { m_maincpu->set_state_int(Z80_PC, 0xe000); } const gfx_layout modellot_charlayout = { 8, 16, /* 8x16 characters */ 128, /* 128 characters */ 1, /* 1 bits per pixel */ {0}, /* no bitplanes; 1 bit per pixel */ {0,1,2,3,4,5,6,7}, {0, 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 0x400*8, 0x401*8, 0x402*8, 0x403*8, 0x404*8, 0x405*8, 0x406*8, 0x407*8}, 8*8 /* space between characters */ }; static GFXDECODE_START( modellot ) GFXDECODE_ENTRY( "chargen", 0x0000, modellot_charlayout, 0, 1 ) GFXDECODE_END UINT32 modellot_state::screen_update_modellot(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int x,y; for(y = 0; y < 16; y++ ) { for(x = 0; x < 64; x++ ) { int code = m_video_ram[x + y*64]; drawgfx_opaque(bitmap, cliprect, machine().gfx[0], code, 0, 0, 0, x*8, y*16); } } return 0; } static MACHINE_CONFIG_START( modellot, modellot_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) MCFG_CPU_PROGRAM_MAP(modellot_mem) MCFG_CPU_IO_MAP(modellot_io) /* 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(64*8, 16*16) MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 16*16-1) MCFG_SCREEN_UPDATE_DRIVER(modellot_state, screen_update_modellot) MCFG_GFXDECODE( modellot ) MCFG_PALETTE_LENGTH(2) MCFG_PALETTE_INIT(black_and_white) MACHINE_CONFIG_END /* ROM definition */ ROM_START( modellot ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) //ROM_LOAD( "fdc8119.u3", 0x0000, 0x0400, CRC(a8aee944) SHA1(f2cc598ed2e7a1a620e2f3f53c1a573965f6af26)) ROM_LOAD( "dt49-48.u1", 0xe000, 0x0400, CRC(2441c438) SHA1(832994a4214a744b7e19e5f74000c95ae65e3759)) ROM_LOAD( "ht20.u2", 0xe400, 0x0400, CRC(497c0495) SHA1(d03beebc4c31284729f6eac3bdf1fbf44adf7fff)) ROM_REGION( 0x0800, "chargen", ROMREGION_INVERT ) ROM_LOAD( "gcem1.u3", 0x0000, 0x0200, CRC(e7739268) SHA1(091ef69282abe657d5f38c70a572964f5200a1d5)) ROM_CONTINUE(0x400, 0x200) ROM_LOAD( "gcem2.u4", 0x0200, 0x0200, CRC(6614330e) SHA1(880a541fb0ef6f37ac89439f9ea75a313c3e53d6)) ROM_CONTINUE(0x600, 0x200) ROM_END /* Driver */ COMP( 1979, modellot, 0, 0, modellot, modellot, driver_device, 0, "General Processor", "Modello T", GAME_IS_SKELETON)