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path: root/src/mess/drivers/dual68.c
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/***************************************************************************

        Dual Systems 68000

        09/12/2009 Skeleton driver.

****************************************************************************/

#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "cpu/i8085/i8085.h"
#include "machine/terminal.h"

#define TERMINAL_TAG "terminal"

class dual68_state : public driver_device
{
public:
	dual68_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_terminal(*this, TERMINAL_TAG),
		m_p_ram(*this, "p_ram")
	{
	}

	required_device<cpu_device> m_maincpu;
	required_device<generic_terminal_device> m_terminal;
	DECLARE_WRITE8_MEMBER( kbd_put );
	DECLARE_WRITE16_MEMBER( dual68_terminal_w );
	//UINT8 m_term_data;
	required_shared_ptr<UINT16> m_p_ram;
	virtual void machine_reset();
};



WRITE16_MEMBER( dual68_state::dual68_terminal_w )
{
	m_terminal->write(space, 0, data >> 8);
}

static ADDRESS_MAP_START(dual68_mem, AS_PROGRAM, 16, dual68_state)
	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE(0x00000000, 0x0000ffff) AM_RAM AM_SHARE("p_ram")
	AM_RANGE(0x00080000, 0x00081fff) AM_ROM AM_REGION("user1",0)
	AM_RANGE(0x007f0000, 0x007f0001) AM_WRITE(dual68_terminal_w)
	AM_RANGE(0x00800000, 0x00801fff) AM_ROM AM_REGION("user1",0)
ADDRESS_MAP_END

static ADDRESS_MAP_START(sio4_mem, AS_PROGRAM, 8, dual68_state)
	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE(0x0000, 0x07ff) AM_ROM
	AM_RANGE(0x0800, 0xffff) AM_RAM
ADDRESS_MAP_END

static ADDRESS_MAP_START(sio4_io, AS_IO, 8, dual68_state)
	ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_END

/* Input ports */
static INPUT_PORTS_START( dual68 )
INPUT_PORTS_END


void dual68_state::machine_reset()
{
	UINT8* user1 = memregion("user1")->base();

	memcpy((UINT8*)m_p_ram.target(),user1,0x2000);

	m_maincpu->reset();
}

WRITE8_MEMBER( dual68_state::kbd_put )
{
	//m_term_data = data;
}

static MACHINE_CONFIG_START( dual68, dual68_state )
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", M68000, XTAL_16MHz / 2)
	MCFG_CPU_PROGRAM_MAP(dual68_mem)

	MCFG_CPU_ADD("siocpu", I8085A, XTAL_16MHz / 8)
	MCFG_CPU_PROGRAM_MAP(sio4_mem)
	MCFG_CPU_IO_MAP(sio4_io)


	/* video hardware */
	MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
	MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(dual68_state, kbd_put))
MACHINE_CONFIG_END

/* ROM definition */
ROM_START( dual68 )
	ROM_REGION( 0x2000, "user1", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS( 0, "v1", "2 * 4KB" )
	ROMX_LOAD( "dual_cpu68000_1.bin", 0x0001, 0x1000, CRC(d1785c08) SHA1(73c1f68875f1d8eb5e92f4347f509c61103da90f),ROM_SKIP(1) | ROM_BIOS(1))
	ROMX_LOAD( "dual_cpu68000_2.bin", 0x0000, 0x1000, CRC(b9f1ba3c) SHA1(8fd02936ad06d5a22d435d96f06e2442fc7d00ec),ROM_SKIP(1) | ROM_BIOS(1))

	ROM_SYSTEM_BIOS( 1, "v2", "2 * 2KB" )
	ROMX_LOAD( "dual.u2.bin", 0x0001, 0x0800, CRC(e9c44fcd) SHA1(d5cc609d6f5e6745d5f0af1aa6dc66012333ed60),ROM_SKIP(1) | ROM_BIOS(2))
	ROMX_LOAD( "dual.u3.bin", 0x0000, 0x0800, CRC(827b049f) SHA1(8209f8ab3d1068e5bab51e7eb12be46d4ea28354),ROM_SKIP(1) | ROM_BIOS(2))

	ROM_REGION( 0x10000, "siocpu", ROMREGION_ERASEFF )
	ROM_LOAD( "dual_sio4.bin", 0x0000, 0x0800, CRC(6b0a1965) SHA1(5d2dc6c6a315293ded4b9fc95c8ac1599bf31dd3))
ROM_END

/* Driver */

/*    YEAR  NAME    PARENT  COMPAT   MACHINE    INPUT    INIT    COMPANY                        FULLNAME       FLAGS */
COMP( 1981, dual68,  0,     0,       dual68,    dual68, driver_device,   0,  "Dual Systems Corporation", "Dual Systems 68000", GAME_NOT_WORKING | GAME_NO_SOUND)