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

        Indiana University 68030 board

        08/12/2009 Skeleton driver.

        If 6001F7 is held at 40, then '>' will appear on screen.
        System often reads/writes 6003D4/5, might be a cut-down 6845,
        as it only uses registers C,D,E,F.

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

#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "video/pc_vga.h"


class indiana_state : public driver_device
{
public:
	indiana_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) ,
		m_maincpu(*this, "maincpu") { }
	DECLARE_DRIVER_INIT(indiana);
	virtual void machine_reset();
	required_device<cpu_device> m_maincpu;
};


static ADDRESS_MAP_START(indiana_mem, AS_PROGRAM, 32, indiana_state)
	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE(0x00000000, 0x0000ffff) AM_MIRROR(0x7f800000) AM_ROM AM_REGION("user1",0) // 64Kb of EPROM
	AM_RANGE(0x00100000, 0x00107fff) AM_MIRROR(0x7f8f8000) AM_RAM // SRAM 32Kb of SRAM
	AM_RANGE(0x00200000, 0x002fffff) AM_MIRROR(0x7f800000) AM_RAM // MFP
	AM_RANGE(0x00400000, 0x004fffff) AM_MIRROR(0x7f800000) AM_RAM // 16 bit PC IO
	AM_RANGE(0x00500000, 0x005fffff) AM_MIRROR(0x7f800000) AM_RAM // 16 bit PC MEM
	AM_RANGE(0x00600000, 0x006fffff) AM_MIRROR(0x7f800000) AM_RAM // 8 bit PC IO
	AM_RANGE(0x00700000, 0x007fffff) AM_MIRROR(0x7f800000) AM_RAM // 8 bit PC MEM
	AM_RANGE(0x7f6003b0, 0x7f6003bf) AM_DEVREADWRITE8("vga", vga_device, port_03b0_r, port_03b0_w, 0xffffffff)
	AM_RANGE(0x7f6003c0, 0x7f6003cf) AM_DEVREADWRITE8("vga", vga_device, port_03c0_r, port_03c0_w, 0xffffffff)
	AM_RANGE(0x7f6003d0, 0x7f6003df) AM_DEVREADWRITE8("vga", vga_device, port_03d0_r, port_03d0_w, 0xffffffff)
	AM_RANGE(0x7f7a0000, 0x7f7bffff) AM_DEVREADWRITE8("vga", vga_device, mem_r, mem_w, 0xffffffff)
	AM_RANGE(0x80000000, 0x803fffff) AM_MIRROR(0x7fc00000) AM_RAM // 4 MB RAM
ADDRESS_MAP_END


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


void indiana_state::machine_reset()
{
}

/* F4 Character Displayer */
static const gfx_layout indiana_charlayout =
{
	8, 16,                  /* 8 x 16 characters */
	128,                    /* 128 characters */
	1,                  /* 1 bits per pixel */
	{ 0 },                  /* no bitplanes */
	/* x offsets */
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	/* y offsets */
	{ 3*8, 2*8, 1*8, 0*8, 7*8, 6*8, 5*8, 4*8, 11*8, 10*8, 9*8, 8*8, 15*8, 14*8, 13*8, 12*8 },
	8*16                    /* every char takes 16 bytes */
};

static GFXDECODE_START( indiana )
	GFXDECODE_ENTRY( "user1", 0x6710, indiana_charlayout, 0, 4 ) // offset is for -bios 0
GFXDECODE_END

static MACHINE_CONFIG_START( indiana, indiana_state )
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu",M68030, XTAL_16MHz)
	MCFG_CPU_PROGRAM_MAP(indiana_mem)


	/* video hardware */
	MCFG_GFXDECODE(indiana)
	MCFG_FRAGMENT_ADD( pcvideo_vga )
MACHINE_CONFIG_END

DRIVER_INIT_MEMBER(indiana_state,indiana)
{
}

/* ROM definition */
ROM_START( indiana )
	ROM_REGION32_BE( 0x10000, "user1", ROMREGION_ERASEFF )
	ROM_SYSTEM_BIOS( 0, "v9", "ver 0.9" )
	ROMX_LOAD( "prom0_9.bin", 0x0000, 0x10000, CRC(746ad75e) SHA1(7d5c123c8568b1e02ab683e8f3188d0fef78d740), ROM_BIOS(1))
	ROM_SYSTEM_BIOS( 1, "v8", "ver 0.8" )
	ROMX_LOAD( "prom0_8.bin", 0x0000, 0x10000, CRC(9d8dafee) SHA1(c824e5fe6eec08f51ef287c651a5034fe3c8b718), ROM_BIOS(2))
	ROM_SYSTEM_BIOS( 2, "v7", "ver 0.7" )
	ROMX_LOAD( "prom0_7.bin", 0x0000, 0x10000, CRC(d6a3b6bc) SHA1(01d8cee989ab29646d9d3f8b7262b10055653d41), ROM_BIOS(3))
ROM_END

/* Driver */

/*    YEAR  NAME    PARENT  COMPAT   MACHINE    INPUT    INIT    COMPANY                  FULLNAME                               FLAGS */
COMP( 1993, indiana,  0,       0,    indiana,   indiana, indiana_state,  indiana,  "Indiana University", "Indiana University 68030 board", GAME_NOT_WORKING | GAME_NO_SOUND)