/******************************************************************************
 *	Sharp MZ700
 *
 *	system driver
 *
 *	Juergen Buchmueller <pullmoll@t-online.de>, Jul 2000
 *
 *  Reference: http://sharpmz.computingmuseum.com
 *
 *	MZ700 memory map
 *
 *	0000-0FFF	1Z-013A ROM or RAM
 *	1000-CFFF	RAM
 *	D000-D7FF	videoram or RAM
 *	D800-DFFF	colorram or RAM
 *	E000-FFFF	memory mapped IO or RAM
 *
 *		xxx0	PPI8255 port A (output)
 *				bit 7	556RST (reset NE556)
 *				bit 6-4 unused
 *				bit 3-0 keyboard row demux (LS145)
 *
 *		xxx1	PPI8255 port B (input)
 *				bit 7-0 keyboard matrix code
 *
 *		xxx2	PPI8255 port C (input/output)
 *				bit 7 R -VBLANK input
 *				bit 6 R 556OUT (1.5Hz)
 *				bit 5 R RDATA from cassette
 *				bit 4 R MOTOR from cassette
 *				bit 3 W M-ON control
 *				bit 2 W INTMASK 1=enable 0=disabel clock interrupt
 *				bit 1 W WDATA to cassette
 *				bit 0 W unused
 *
 *		xxx3	PPI8255 control
 *
 *		xxx4	PIT8253 timer 0 (clock input 1,108800 MHz)
 *		xxx5	PIT8253 timer 1 (clock input 15,611 kHz)
 *		xxx6	PIT8253 timer 2 (clock input OUT1 1Hz (default))
 *		xxx7	PIT8253 control/status
 *
 *		xxx8	bit 7 R -HBLANK
 *				bit 6 R unused
 *				bit 5 R unused
 *				bit 4 R joystick JB2
 *				bit 3 R joystick JB1
 *				bit 2 R joystick JA2
 *				bit 1 R joystick JA1
 *				bit 0 R NE556 OUT (32Hz IC BJ)
 *					  W gate0 of PIT8253 (sound enable)
 *
 *	MZ800 memory map
 *
 *	0000-0FFF	ROM or RAM
 *	1000-1FFF	PCG ROM or RAM
 *	2000-7FFF	RAM
 *	8000-9FFF	videoram or RAM
 *	A000-BFFF	videoram or RAM
 *	C000-CFFF	PCG RAM or RAM
 *	D000-DFFF	videoram or RAM
 *	E000-FFFF	memory mapped IO or RAM
 *
 *****************************************************************************/

#include "includes/mz700.h"
#include "devices/cassette.h"
#include "formats/mz_cas.h"

#ifndef VERBOSE
#define VERBOSE 1
#endif

#if VERBOSE
#define LOG(N,M,A)	\
	if(VERBOSE>=N){ if( M )logerror("%11.6f: %-24s",timer_get_time(),(char*)M ); logerror A; }
#else
#define LOG(N,M,A)
#endif

ADDRESS_MAP_START( readmem_mz700 , ADDRESS_SPACE_PROGRAM, 8)
	AM_RANGE( 0x00000, 0x00fff) AM_READ( MRA8_BANK1 )
	AM_RANGE( 0x01000, 0x0cfff) AM_READ( MRA8_RAM )
	AM_RANGE( 0x0d000, 0x0d7ff) AM_READ( MRA8_BANK6 )
	AM_RANGE( 0x0d800, 0x0dfff) AM_READ( MRA8_BANK7 )
	AM_RANGE( 0x0e000, 0x0ffff) AM_READ( MRA8_BANK8 )
#if 0 /*mame37b9 traps */
	AM_RANGE( 0x10000, 0x10fff) AM_READ( MRA8_ROM )
	AM_RANGE( 0x12000, 0x127ff) AM_READ( MRA8_RAM )
	AM_RANGE( 0x12800, 0x12fff) AM_READ( MRA8_RAM )
	AM_RANGE( 0x16000, 0x16fff) AM_READ( MRA8_RAM )
#endif
ADDRESS_MAP_END

ADDRESS_MAP_START( writemem_mz700 , ADDRESS_SPACE_PROGRAM, 8)
	AM_RANGE( 0x00000, 0x00fff) AM_WRITE( MWA8_BANK1 )
	AM_RANGE( 0x01000, 0x0cfff) AM_WRITE( MWA8_RAM )
	AM_RANGE( 0x0d000, 0x0d7ff) AM_WRITE( MWA8_BANK6 )
	AM_RANGE( 0x0d800, 0x0dfff) AM_WRITE( MWA8_BANK7 )
	AM_RANGE( 0x0e000, 0x0ffff) AM_WRITE( MWA8_BANK8 )
#if 0
	AM_RANGE( 0x12000, 0x127ff) AM_WRITE( videoram_w) AM_BASE( &videoram) AM_SIZE( &videoram_size )
	AM_RANGE( 0x12800, 0x12fff) AM_WRITE( colorram_w) AM_BASE( &colorram )
	AM_RANGE( 0x16000, 0x16fff) AM_WRITE( pcgram_w )
#endif
ADDRESS_MAP_END

ADDRESS_MAP_START( readport_mz700 , ADDRESS_SPACE_IO, 8)
ADDRESS_MAP_END

ADDRESS_MAP_START( writeport_mz700 , ADDRESS_SPACE_IO, 8)
	AM_RANGE( 0xe0, 0xe6) AM_WRITE( mz700_bank_w )
ADDRESS_MAP_END

ADDRESS_MAP_START( readmem_mz800 , ADDRESS_SPACE_PROGRAM, 8)
	AM_RANGE( 0x00000, 0x00fff) AM_READ( MRA8_BANK1 )
	AM_RANGE( 0x01000, 0x01fff) AM_READ( MRA8_BANK2 )
	AM_RANGE( 0x02000, 0x07fff) AM_READ( MRA8_RAM )
	AM_RANGE( 0x08000, 0x09fff) AM_READ( MRA8_BANK3 )
	AM_RANGE( 0x0a000, 0x0bfff) AM_READ( MRA8_BANK4 )
	AM_RANGE( 0x0c000, 0x0cfff) AM_READ( MRA8_BANK5 )
	AM_RANGE( 0x0d000, 0x0d7ff) AM_READ( MRA8_BANK6 )
	AM_RANGE( 0x0d800, 0x0dfff) AM_READ( MRA8_BANK7 )
	AM_RANGE( 0x0e000, 0x0ffff) AM_READ( MRA8_BANK8 )
#if 0
	AM_RANGE( 0x10000, 0x10fff) AM_READ( MRA8_ROM )
	AM_RANGE( 0x11000, 0x11fff) AM_READ( MRA8_ROM )
	AM_RANGE( 0x12000, 0x15fff) AM_READ( MRA8_RAM )
#endif
ADDRESS_MAP_END

ADDRESS_MAP_START( writemem_mz800 , ADDRESS_SPACE_PROGRAM, 8)
	AM_RANGE( 0x00000, 0x00fff) AM_WRITE( MWA8_BANK1 )
	AM_RANGE( 0x01000, 0x01fff) AM_WRITE( MWA8_BANK2 )
	AM_RANGE( 0x02000, 0x07fff) AM_WRITE( MWA8_RAM )
	AM_RANGE( 0x08000, 0x09fff) AM_WRITE( MWA8_BANK3 )
	AM_RANGE( 0x0a000, 0x0bfff) AM_WRITE( MWA8_BANK4 )
	AM_RANGE( 0x0c000, 0x0cfff) AM_WRITE( MWA8_BANK5 )
	AM_RANGE( 0x0d000, 0x0d7ff) AM_WRITE( MWA8_BANK6 )
	AM_RANGE( 0x0d800, 0x0dfff) AM_WRITE( MWA8_BANK7 )
	AM_RANGE( 0x0e000, 0x0ffff) AM_WRITE( MWA8_BANK8 )
#if 0
	AM_RANGE( 0x10000, 0x10fff) AM_WRITE( MWA8_ROM )
	AM_RANGE( 0x11000, 0x11fff) AM_WRITE( MWA8_ROM )
    AM_RANGE( 0x12000, 0x16fff) AM_WRITE( videoram_w) AM_BASE( &videoram) AM_SIZE( &videoram_size )
	AM_RANGE( 0x12800, 0x12fff) AM_WRITE( colorram_w) AM_BASE( &colorram )
#endif
ADDRESS_MAP_END

ADDRESS_MAP_START( readport_mz800 , ADDRESS_SPACE_IO, 8)
	AM_RANGE( 0xce, 0xce) AM_READ( mz800_crtc_r )
	AM_RANGE( 0xd0, 0xd7) AM_READ( mz800_mmio_r )
	AM_RANGE( 0xe0, 0xe9) AM_READ( mz800_bank_r )
	AM_RANGE( 0xea, 0xea) AM_READ( mz800_ramdisk_r )
ADDRESS_MAP_END

ADDRESS_MAP_START( writeport_mz800 , ADDRESS_SPACE_IO, 8)
	AM_RANGE( 0xcc, 0xcc) AM_WRITE( mz800_write_format_w )
	AM_RANGE( 0xcd, 0xcd) AM_WRITE( mz800_read_format_w )
	AM_RANGE( 0xce, 0xce) AM_WRITE( mz800_display_mode_w )
	AM_RANGE( 0xcf, 0xcf) AM_WRITE( mz800_scroll_border_w )
	AM_RANGE( 0xd0, 0xd7) AM_WRITE( mz800_mmio_w )
	AM_RANGE( 0xe0, 0xe9) AM_WRITE( mz800_bank_w )
	AM_RANGE( 0xea, 0xea) AM_WRITE( mz800_ramdisk_w )
	AM_RANGE( 0xeb, 0xeb) AM_WRITE( mz800_ramaddr_w )
	AM_RANGE( 0xf0, 0xf0) AM_WRITE( mz800_palette_w )
ADDRESS_MAP_END

INPUT_PORTS_START( mz700 )
	PORT_START /* status */
	PORT_BIT(0x80, 0x80, IPT_VBLANK)
	PORT_BIT(0x7f, 0x00, IPT_UNUSED)

    PORT_START /* KEY ROW 0 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME(":  *") PORT_CODE(KEYCODE_COLON)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME(";  +") PORT_CODE(KEYCODE_QUOTE)
	PORT_BIT (0x08, 0x08, IPT_UNUSED )
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("Alpha") PORT_CODE(KEYCODE_PGUP)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("~  ^") PORT_CODE(KEYCODE_TILDE)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Graph") PORT_CODE(KEYCODE_PGDN)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("#  '") PORT_CODE(KEYCODE_BACKSLASH2)

	PORT_START /* KEY ROW 1 */
	PORT_BIT (0x07, 0x07, IPT_UNUSED )
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("z Z") PORT_CODE(KEYCODE_Z)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("y Y") PORT_CODE(KEYCODE_Y)

	PORT_START /* KEY ROW 2 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("x  X") PORT_CODE(KEYCODE_X)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("w  W") PORT_CODE(KEYCODE_W)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("v  V") PORT_CODE(KEYCODE_V)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("u  U") PORT_CODE(KEYCODE_U)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("t  T") PORT_CODE(KEYCODE_T)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("s  S") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("r  R") PORT_CODE(KEYCODE_R)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("q  Q") PORT_CODE(KEYCODE_Q)

	PORT_START /* KEY ROW 3 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("p  P") PORT_CODE(KEYCODE_P)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("o  O") PORT_CODE(KEYCODE_O)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("n  N") PORT_CODE(KEYCODE_N)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("m  M") PORT_CODE(KEYCODE_M)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("l  L") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("k  K") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("j  J") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("i  I") PORT_CODE(KEYCODE_I)

	PORT_START /* KEY ROW 4 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("h  H") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("g  G") PORT_CODE(KEYCODE_G)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("f  F") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("e  E") PORT_CODE(KEYCODE_E)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("d  D") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("c  C") PORT_CODE(KEYCODE_C)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("b  B") PORT_CODE(KEYCODE_B)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("a  A") PORT_CODE(KEYCODE_A)

	PORT_START /* KEY ROW 5 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("8  (") PORT_CODE(KEYCODE_8)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("7  '") PORT_CODE(KEYCODE_7)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("6  &") PORT_CODE(KEYCODE_6)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("5  %") PORT_CODE(KEYCODE_5)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("4  $") PORT_CODE(KEYCODE_4)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("3  #") PORT_CODE(KEYCODE_3)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("2  \"") PORT_CODE(KEYCODE_2)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("1  !") PORT_CODE(KEYCODE_1)

	PORT_START /* KEY ROW 6 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME(".  <") PORT_CODE(KEYCODE_STOP)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME(",  >") PORT_CODE(KEYCODE_COMMA)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("9  )") PORT_CODE(KEYCODE_9)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("-  =") PORT_CODE(KEYCODE_EQUALS)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Up-Arrow") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("\\  |") PORT_CODE(KEYCODE_BACKSLASH)

	PORT_START /* KEY ROW 7 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("?") PORT_CODE(KEYCODE_END)
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_DEL)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("Ins") PORT_CODE(KEYCODE_INSERT)

	PORT_START /* KEY ROW 8 */
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("LShift") PORT_CODE(KEYCODE_LSHIFT)
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("RShift") PORT_CODE(KEYCODE_RSHIFT)
	PORT_BIT (0x3e, 0x3e, IPT_UNUSED)
    PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("LCtrl") PORT_CODE(KEYCODE_LCONTROL)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("RCtrl") PORT_CODE(KEYCODE_RCONTROL)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_HOME)


	PORT_START /* KEY ROW 9 */
	PORT_BIT (0x07, 0x07, IPT_UNUSED)
    PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
    PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
    PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
    PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
    PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)

	PORT_START /* KEY ROW 10 */
	PORT_START /* joystick */
	PORT_BIT( 0x01, 0x00, IPT_UNUSED												  )
	PORT_BIT( 0x02, 0x00, IPT_JOYSTICK_UP) PORT_8WAY
	PORT_BIT( 0x04, 0x00, IPT_JOYSTICK_DOWN) PORT_8WAY
	PORT_BIT( 0x08, 0x00, IPT_JOYSTICK_LEFT) PORT_8WAY
	PORT_BIT( 0x10, 0x00, IPT_JOYSTICK_RIGHT) PORT_8WAY
INPUT_PORTS_END

static gfx_layout char_layout =
{
	8, 8,		/* 8 x 8 graphics */
	512,		/* 512 codes */
	1,			/* 1 bit per pixel */
	{ 0 },		/* no bitplanes */
	{ 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		/* code takes 8 times 8 bits */
};

static gfx_decode gfxdecodeinfo[] =
{
	{ REGION_GFX1, 0, &char_layout, 0, 256 },
	{-1}
};	 /* end of array */



static MACHINE_DRIVER_START(mz700)

	/* basic machine hardware */
	/* Z80 CPU @ 3.5 MHz */
	MDRV_CPU_ADD(Z80, 3500000)
	/*MDRV_CPU_CONFIG(0)*/
	MDRV_CPU_PROGRAM_MAP(readmem_mz700, writemem_mz700)
	MDRV_CPU_IO_MAP(readport_mz700, writeport_mz700)
	/*MDRV_CPU_PERIODIC_INT(func, rate)*/

	MDRV_FRAMES_PER_SECOND(50)
	MDRV_VBLANK_DURATION(2500)
	/*MDRV_INTERLEAVE(interleave)*/

	MDRV_MACHINE_INIT( mz700 )
	/*MDRV_NVRAM_HANDLER( NULL )*/

	/* video hardware - include overscan */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	/*MDRV_ASPECT_RATIO(num, den)*/
	MDRV_SCREEN_SIZE(40*8, 25*8)
	MDRV_VISIBLE_AREA(0*8, 40*8 - 1, 0*8, 25*8 - 1)

	MDRV_GFXDECODE(gfxdecodeinfo)
	MDRV_PALETTE_LENGTH(8)
	MDRV_COLORTABLE_LENGTH(2*256)

	MDRV_PALETTE_INIT(mz700)
	MDRV_VIDEO_START(mz700)
	/*MDRV_VIDEO_EOF(mz700)*/
	MDRV_VIDEO_UPDATE(mz700)

	MDRV_SPEAKER_STANDARD_MONO("mono")
	MDRV_SOUND_ADD(WAVE, 0)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
	MDRV_SOUND_ADD(BEEP, 0)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END

static MACHINE_DRIVER_START(mz800)

	/* basic machine hardware */
	/* Z80 CPU @ 3.5 MHz */
	MDRV_CPU_ADD(Z80, 3500000)
	MDRV_CPU_PROGRAM_MAP(readmem_mz800, writemem_mz800)
	MDRV_CPU_IO_MAP(readport_mz800, writeport_mz800)

	MDRV_FRAMES_PER_SECOND(50)
	MDRV_VBLANK_DURATION(2500)

	MDRV_MACHINE_INIT( mz700 )

	/* video hardware - include overscan */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_SIZE(40*8, 25*8)
	MDRV_VISIBLE_AREA(0*8, 40*8 - 1, 0*8, 25*8 - 1)

	MDRV_GFXDECODE(gfxdecodeinfo)
	MDRV_PALETTE_LENGTH(8)
	MDRV_COLORTABLE_LENGTH(2*256)

	MDRV_PALETTE_INIT(mz700)
	MDRV_VIDEO_START(mz700)
	MDRV_VIDEO_UPDATE(mz700)

	MDRV_SPEAKER_STANDARD_MONO("mono")
	MDRV_SOUND_ADD(WAVE, 0)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
	MDRV_SOUND_ADD(BEEP, 0)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END



ROM_START(mz700)
	ROM_REGION(0x18000,REGION_CPU1,0)
		ROM_LOAD("1z-013a.rom", 0x10000, 0x1000, CRC(4c6c6b7b) SHA1(ef8f7399e86c1dc638a5cb83efdb73369c2b5735))
	ROM_REGION(0x01000,REGION_GFX1,0)
		ROM_LOAD("mz700fon.int",0x00000, 0x1000, CRC(42b9e8fb) SHA1(5128ad179a702f8e0bd9910a58bad8fbe4c20167))
ROM_END

ROM_START(mz700j)
	ROM_REGION(0x18000,REGION_CPU1,0)
		ROM_LOAD("1z-013a.rom", 0x10000, 0x1000, CRC(4c6c6b7b) SHA1(ef8f7399e86c1dc638a5cb83efdb73369c2b5735))
	ROM_REGION(0x01000,REGION_GFX1,0)
		ROM_LOAD("mz700fon.jap",0x00000, 0x1000, CRC(425eedf5) SHA1(bd2cc750f2d2f63e50a59786668509e81a276e32))
ROM_END

ROM_START(mz800)
	ROM_REGION(0x18000,REGION_CPU1,0)
		ROM_LOAD("mz800h.rom",  0x10000, 0x2000, BAD_DUMP CRC(0c281675))
	ROM_REGION(0x10000,REGION_USER1,0)
		/* RAMDISK */
    ROM_REGION(0x01000,REGION_GFX1,0)
		ROM_LOAD("mz700fon.int",0x00000, 0x1000, CRC(42b9e8fb) SHA1(5128ad179a702f8e0bd9910a58bad8fbe4c20167))
ROM_END

static void mz700_cassette_getinfo(struct IODevice *dev)
{
	/* cassette */
	cassette_device_getinfo(dev, mz700_cassette_formats, NULL, (cassette_state) -1);
	dev->count = 1;
}

SYSTEM_CONFIG_START(mz700)
	CONFIG_DEVICE(mz700_cassette_getinfo)
SYSTEM_CONFIG_END

/*    YEAR  NAME      PARENT	COMPAT	MACHINE   INPUT     INIT	CONFIG	COMPANY      FULLNAME */
COMP( 1982, mz700,	  0,		0,		mz700,	  mz700,	mz700,	mz700,	"Sharp",     "MZ-700" )
COMP( 1982, mz700j,   mz700,	0,		mz700,	  mz700,	mz700,	mz700,	"Sharp",     "MZ-700 (Japan)" )
COMP( 1982, mz800,	  mz700,	0,		mz800,	  mz700,	mz800,	mz700,	"Sharp",     "MZ-800" )


