// license:MAME
// copyright-holders:Robbbert
/***************************************************************************

Forward Technology FT-68M Multibus card.

2013-09-26 Skeleton driver

Chips: HD68000-10, uPD7201C, AM9513APC. Crystal: 19.6608 MHz

Interrupts: INT6 is output of Timer 2, INT7 is output of Timer 3 (refresh),
            INT5 comes from SIO.

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

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

class ft68m_state : public driver_device
{
public:
	ft68m_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag)
		, m_p_base(*this, "rambase")
		, m_maincpu(*this, "maincpu")
		, m_terminal(*this, TERMINAL_TAG)
	{ }

	DECLARE_WRITE8_MEMBER(kbd_put);
	DECLARE_READ16_MEMBER(keyin_r);
	DECLARE_READ16_MEMBER(status_r);
	DECLARE_READ16_MEMBER(switches_r);
private:
	UINT8 m_term_data;
	virtual void machine_reset();
	required_shared_ptr<UINT16> m_p_base;
	required_device<cpu_device> m_maincpu;
	required_device<generic_terminal_device> m_terminal;
};

READ16_MEMBER( ft68m_state::keyin_r )
{
	UINT16 ret = m_term_data;
	m_term_data = 0;
	return ret << 8;
}

READ16_MEMBER( ft68m_state::status_r )
{
	return (m_term_data) ? 0x500 : 0x400;
}

READ16_MEMBER( ft68m_state::switches_r )
{
	return 0x7c00; // bypass self test
}


static ADDRESS_MAP_START(ft68m_mem, AS_PROGRAM, 16, ft68m_state)
	ADDRESS_MAP_UNMAP_HIGH
	ADDRESS_MAP_GLOBAL_MASK(0xffffff)
	AM_RANGE(0x000000, 0x1fffff) AM_RAM AM_SHARE("rambase")
	AM_RANGE(0x200000, 0x201fff) AM_ROM AM_REGION("roms", 0x0000)
	AM_RANGE(0x400000, 0x401fff) AM_ROM AM_REGION("roms", 0x2000)
	AM_RANGE(0x600000, 0x600001) AM_READ(keyin_r) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff00)
	AM_RANGE(0x600002, 0x600003) AM_READ(status_r)
	//AM_RANGE(0x600000, 0x600003) AM_MIRROR(0x1ffffc) uPD7201 SIO
	//AM_RANGE(0x800000, 0x800003) AM_MIRROR(0x1ffffc) AM9513 Timer
	AM_RANGE(0xa00000, 0xbfffff) AM_RAM //Page Map
	AM_RANGE(0xc00000, 0xdfffff) AM_RAM //Segment Map
	AM_RANGE(0xe00000, 0xffffff) AM_READ(switches_r) //Context Register
ADDRESS_MAP_END


/* Input ports */
static INPUT_PORTS_START( ft68m )
INPUT_PORTS_END


void ft68m_state::machine_reset()
{
	UINT8* ROM = memregion("roms")->base();
	memcpy(m_p_base, ROM, 8);
	m_maincpu->reset();
}

WRITE8_MEMBER( ft68m_state::kbd_put )
{
	m_term_data = data;
}

static GENERIC_TERMINAL_INTERFACE( terminal_intf )
{
	DEVCB_DRIVER_MEMBER(ft68m_state, kbd_put)
};

static MACHINE_CONFIG_START( ft68m, ft68m_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", M68000, XTAL_19_6608MHz / 2)
	MCFG_CPU_PROGRAM_MAP(ft68m_mem)

	/* video hardware */
	MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
MACHINE_CONFIG_END

/* ROM definition */
ROM_START( ft68m )
	ROM_REGION16_BE(0x4000, "roms", 0)
	ROM_LOAD16_BYTE("23-0009-01c.a4", 0x0000, 0x1000, CRC(0d45fc8d) SHA1(59587cb1c151bfd0d69e708716ed3b0a78aa85ea) )
	ROM_LOAD16_BYTE("23-0008-01c.a1", 0x0001, 0x1000, CRC(d1aa1164) SHA1(05e10f1c594e2acd369949b873a524a9cc37829f) )
	ROM_LOAD16_BYTE( "33-01.a6", 0x2000, 0x1000, CRC(53fe3c73) SHA1(ad15c74cd8edef9d9716ad0d16f7a95ff2af901f) )
	ROM_LOAD16_BYTE( "33-00.a3", 0x2001, 0x1000, CRC(06b1cc77) SHA1(12e3314e92f800b3c4ebdf55dcd5351230224788) )

	ROM_REGION(0x700, "proms", 0)
	ROM_LOAD("23-0010-00.a15", 0x000, 0x020, CRC(20eb1183) SHA1(9b268792b28d858d6b6a1b6c4148af88a8d6b735) )
	ROM_LOAD("23-0011-00.a14", 0x100, 0x200, CRC(12d9a6be) SHA1(fca99f9c5afc630ac67cbd4e5ba4e5242b826848) )
	ROM_LOAD("23-0012-00.a16", 0x300, 0x020, CRC(ee1e5a14) SHA1(0d3346cb3b647fa2475bd7b4fa36ea6ecfdaf805) )
	ROM_LOAD("23-0034-00.e4",  0x400, 0x100, CRC(1a573887) SHA1(459bd2d8dc8c4b1c0a529984ae8e38d0c81a084c) )
	ROM_LOAD("23-0037-00.e7",  0x500, 0x100, CRC(9ed4b7f6) SHA1(136a74567094d8462c3a4de1b7e6eb8f30fe71ca) )
	ROM_LOAD("23-0038-00.f1",  0x600, 0x100, CRC(3e56cce5) SHA1(f30a8d5d744bfc25493cd1e92961bbb75f9e0d05) )
ROM_END


/* Driver */

/*    YEAR  NAME   PARENT  COMPAT  MACHINE INPUT   CLASS          INIT COMPANY               FULLNAME  FLAGS */
COMP( 198?, ft68m, 0,      0,      ft68m,  ft68m,  driver_device, 0,   "Forward Technology", "FT-68M", GAME_NOT_WORKING | GAME_NO_SOUND_HW )
