/************************************************************************************************************ Control Data Corporation CDC 721 Terminal (Viking) 2013-08-13 Skeleton *************************************************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" class cdc721_state : public driver_device { public: cdc721_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_p_videoram(*this, "videoram") , m_maincpu(*this, "maincpu") { } public: virtual void machine_reset(); DECLARE_PALETTE_INIT(cdc721); const UINT8 *m_p_chargen; UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_shared_ptr m_p_videoram; private: required_device m_maincpu; }; static ADDRESS_MAP_START( cdc721_mem, AS_PROGRAM, 8, cdc721_state ) AM_RANGE(0x0000, 0x3fff) AM_ROM AM_REGION("maincpu", 0) AM_RANGE(0x4000, 0xf097) AM_RAM AM_RANGE(0xf098, 0xffff) AM_RAM AM_SHARE("videoram") ADDRESS_MAP_END static ADDRESS_MAP_START( cdc721_io, AS_IO, 8, cdc721_state ) ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_END static INPUT_PORTS_START( cdc721 ) INPUT_PORTS_END void cdc721_state::machine_reset() { m_p_chargen = memregion("chargen")->base(); } /* F4 Character Displayer */ static const gfx_layout cdc721_charlayout = { 8, 16, /* 8 x 16 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 7, 6, 5, 4, 3, 2, 1, 0 }, /* y offsets */ { 0*8, 0x100*8, 0x200*8, 0x300*8, 0x400*8, 0x500*8, 0x600*8, 0x700*8, 0x800*8, 0x900*8, 0xa00*8, 0xb00*8, 0xc00*8, 0xd00*8, 0xe00*8, 0xf00*8 }, 8 /* every char takes 16 x 1 bytes */ }; static GFXDECODE_START( cdc721 ) GFXDECODE_ENTRY( "chargen", 0x0000, cdc721_charlayout, 0, 1 ) GFXDECODE_END PALETTE_INIT_MEMBER( cdc721_state, cdc721 ) { palette.set_pen_color(0, 0, 0, 0 ); /* Black */ palette.set_pen_color(1, 0, 255, 0 ); /* Full */ palette.set_pen_color(2, 0, 128, 0 ); /* Dimmed */ } UINT32 cdc721_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { UINT8 y,ra,chr,gfx; UINT16 sy=0,ma=0,x; for (y = 0; y < 24; y++) { for (ra = 3; ra < 13; ra++) { UINT16 *p = &bitmap.pix16(sy++); for (x = 0; x < 160; x+=2) { chr = m_p_videoram[x+ma]; gfx = m_p_chargen[chr | (ra << 8) ]; /* Display a scanline of a character */ *p++ = BIT(gfx, 0); *p++ = BIT(gfx, 1); *p++ = BIT(gfx, 2); *p++ = BIT(gfx, 3); *p++ = BIT(gfx, 4); *p++ = BIT(gfx, 5); *p++ = BIT(gfx, 6); *p++ = BIT(gfx, 7); } } ma+=160; } return 0; } static MACHINE_CONFIG_START( cdc721, cdc721_state ) // basic machine hardware MCFG_CPU_ADD("maincpu", Z80, 4000000) MCFG_CPU_PROGRAM_MAP(cdc721_mem) MCFG_CPU_IO_MAP(cdc721_io) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_UPDATE_DRIVER(cdc721_state, screen_update) MCFG_SCREEN_SIZE(640, 240) MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 239) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 3) MCFG_PALETTE_INIT_OWNER(cdc721_state, cdc721) MCFG_GFXDECODE_ADD("gfxdecode", "palette", cdc721) MACHINE_CONFIG_END ROM_START( cdc721 ) ROM_REGION( 0x6000, "maincpu", 0 ) ROM_LOAD( "66315359", 0x0000, 0x2000, CRC(20ff3eb4) SHA1(5f15cb14893d75a46dc66d3042356bb054d632c2) ) ROM_LOAD( "66315361", 0x2000, 0x2000, CRC(21d59d09) SHA1(9c087537d68c600ddf1eb9b009cf458231c279f4) ) ROM_LOAD( "66315360", 0x4000, 0x1000, CRC(feaa0fc5) SHA1(f06196553a1f10c07b2f7e495823daf7ea26edee) ) // rom @ 4000 ROM_LOAD( "66307828", 0x5000, 0x1000, CRC(ac97136f) SHA1(0d280e1aa4b9502bd390d260f83af19bf24905cd) ) // keyboard ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "66315039", 0x0000, 0x1000, CRC(5c9aa968) SHA1(3ec7c5f25562579e6ed3fda7562428ff5e6b9550) ) // chargen ROM_END COMP( 1981, cdc721, 0, 0, cdc721, cdc721, driver_device, 0, "Control Data Corporation", "CDC721 Terminal", GAME_NOT_WORKING | GAME_NO_SOUND_HW )