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/***************************************************************************
ITT 3030
***************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#define MAIN_CLOCK XTAL_8MHz
class itt3030_state : public driver_device
{
public:
itt3030_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu")
{ }
// devices
required_device<cpu_device> m_maincpu;
// screen updates
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// driver_device overrides
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
public:
DECLARE_READ8_MEMBER(unk1_r);
DECLARE_READ8_MEMBER(unk2_r);
private:
UINT8 m_unk;
};
void itt3030_state::video_start()
{
m_unk = 0x80;
}
READ8_MEMBER(itt3030_state::unk1_r)
{
UINT8 ret = m_unk;
m_unk ^= 0x80;
return ret;
}
READ8_MEMBER(itt3030_state::unk2_r)
{
return 0x40;
}
UINT32 itt3030_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
address_space &space = machine().device("maincpu")->memory().space(AS_PROGRAM);
for(int y = 0; y < 24; y++ )
{
for(int x = 0; x < 80; x++ )
{
UINT8 code = space.read_byte(0x3000 + x + y*128);
drawgfx_opaque(bitmap, cliprect, machine().gfx[0], code , 0, 0,0, x*8,y*16);
}
}
return 0;
}
static ADDRESS_MAP_START( itt3030_map, AS_PROGRAM, 8, itt3030_state )
AM_RANGE(0x0000, 0x07ff) AM_ROM
AM_RANGE(0x0800, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( itt3030_io, AS_IO, 8, itt3030_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x0031, 0x0031) AM_READ(unk2_r)
AM_RANGE(0x0035, 0x0035) AM_READ(unk1_r)
ADDRESS_MAP_END
static INPUT_PORTS_START( itt3030 )
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8, 16, /* 8x16 characters */
128, /* 128 characters */
1, /* 1 bits per pixel */
{0}, /* no bitplanes; 1 bit per pixel */
{7, 6, 5, 4, 3, 2, 1, 0},
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
8*16 /* size of one char */
};
static GFXDECODE_START( itt3030 )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 )
GFXDECODE_END
void itt3030_state::machine_start()
{
}
void itt3030_state::machine_reset()
{
}
static MACHINE_CONFIG_START( itt3030, itt3030_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80,XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(itt3030_map)
MCFG_CPU_IO_MAP(itt3030_io)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_UPDATE_DRIVER(itt3030_state, screen_update)
MCFG_SCREEN_SIZE(80*8, 24*16)
MCFG_SCREEN_VISIBLE_AREA(0, 80*8-1, 0, 24*16-1)
MCFG_GFXDECODE(itt3030)
MCFG_PALETTE_LENGTH(2)
MCFG_PALETTE_INIT(black_and_white)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( itt3030 )
ROM_REGION( 0x0800, "maincpu", ROMREGION_ERASE00 )
ROM_LOAD( "bootv1.2.bin", 0x0000, 0x0800, CRC(90279d45) SHA1(a39a3f31f4f98980b1ef50805870837fbf72261d))
ROM_REGION( 0x0800, "gfx1", ROMREGION_ERASE00 )
ROM_LOAD( "gb136-0.bin", 0x0000, 0x0800, CRC(6a3895a8) SHA1(f3b977ffa2f54c346521c9ef034830de8f404621))
ROM_REGION( 0x0400, "gfxcpu", ROMREGION_ERASE00 )
ROM_LOAD( "8741ad.bin", 0x0000, 0x0400, CRC(cabf4394) SHA1(e5d1416b568efa32b578ca295a29b7b5d20c0def))
ROM_END
GAME( 1982, itt3030, 0, itt3030, itt3030, driver_device, 0, ROT0, "ITT RFA", "ITT3030", GAME_NOT_WORKING | GAME_NO_SOUND )
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