// license:MAME // copyright-holders:Robbbert /*************************************************************************** Jonos Escort 2013-09-12 Skeleton driver This computer is some sort of portable Z80-based system. Haven't found any info. ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" class jonos_state : public driver_device { public: jonos_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") { } DECLARE_DRIVER_INIT(jonos); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_shared_ptr m_p_videoram; private: const UINT8 *m_p_chargen; virtual void machine_reset(); virtual void video_start(); required_device m_maincpu; }; static ADDRESS_MAP_START(jonos_mem, AS_PROGRAM, 8, jonos_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x0fff) AM_ROM AM_REGION("roms", 0) AM_RANGE(0x1000, 0x17ff) AM_RAM AM_RANGE(0x1800, 0x1fff) AM_RAM AM_SHARE("videoram") AM_RANGE(0x2000, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START( jonos_io, AS_IO, 8, jonos_state) ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( jonos ) INPUT_PORTS_END void jonos_state::machine_reset() { } void jonos_state::video_start() { m_p_chargen = memregion("chargen")->base(); } UINT32 jonos_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 < 25; y++) { for (ra = 0; ra < 12; ra++) { UINT16 *p = &bitmap.pix16(sy++); for (x = ma; x < ma + 80; x++) { chr = m_p_videoram[x]; if (ra < 8) gfx = m_p_chargen[(chr<<3) | ra ]; else gfx = m_p_chargen[(chr<<3) | (ra&7) | 0x400]; /* 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+=80; } return 0; } /* F4 Character Displayer */ static const gfx_layout jonos_charlayout = { 8, 12, /* 8 x 12 characters */ 128, /* 128 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 7, 6, 5, 4, 3, 2, 1, 0 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 1024*8, 1025*8, 1026*8, 1027*8 }, 8*8 /* every char takes 8 bytes */ }; static GFXDECODE_START( jonos ) GFXDECODE_ENTRY( "chargen", 0x0000, jonos_charlayout, 0, 1 ) GFXDECODE_END static MACHINE_CONFIG_START( jonos, jonos_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", Z80, XTAL_16MHz / 4) MCFG_CPU_PROGRAM_MAP(jonos_mem) MCFG_CPU_IO_MAP(jonos_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(jonos_state, screen_update) MCFG_SCREEN_SIZE(640, 300) MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 299) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", jonos) MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") MACHINE_CONFIG_END DRIVER_INIT_MEMBER(jonos_state,jonos) { } /* ROM definition */ ROM_START( jonos ) ROM_REGION( 0x1000, "roms", 0 ) ROM_LOAD( "jocrts04.rom", 0x0000, 0x1000, CRC(6a3d4048) SHA1(bdb0bc2c8c4e54261376e4ea3c2827d00d3d89bc) ) ROM_REGION( 0x0800, "user1", 0 ) // Z80 code for serial & parallel ports ROM_LOAD( "joz80.rom", 0x0000, 0x0800, CRC(de1e8998) SHA1(270df08caf30cc8f18e740ef05dc8727a925a5da) ) ROM_REGION( 0x0800, "chargen", 0 ) ROM_LOAD( "jochset0.rom", 0x0000, 0x0800, CRC(1d8e9640) SHA1(74f3604acc71f9bc1e1f9479f6438feda79293a2) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 198?, jonos, 0, 0, jonos, jonos, jonos_state, jonos, "Jonos", "Escort", GAME_NOT_WORKING | GAME_NO_SOUND)