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// license:MAME
// copyright-holders:Miodrag Milanovic
/***************************************************************************

        UT88 driver by Miodrag Milanovic

        09/03/2008 Keyboard fixed, sound added.
        06/03/2008 Preliminary driver.

UT88MINI
********
Need instructions...
When started you enter a one-key command, followed by whatever parameters
are needed.

Pressing 1 will allow entry of bytes into RAM, however the system doesn't
allow you to view memory (afaik).

Command 3 does a test of the display, however the rest are a mystery.

Paste facility was tested but doesn't work, so all code remnants removed.

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

#include "includes/ut88.h"
#include "formats/rk_cas.h"
#include "ut88mini.lh"

static GFXDECODE_START( ut88 )
	GFXDECODE_ENTRY( "chargen", 0x0000, ut88_charlayout, 0, 1 )
GFXDECODE_END

/* Address maps */
static ADDRESS_MAP_START( ut88mini_mem, AS_PROGRAM, 8, ut88_state )
	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE( 0x0000, 0x03ff ) AM_ROM  // System ROM
	AM_RANGE( 0xc000, 0xc3ff ) AM_RAM  // RAM
	AM_RANGE( 0x9000, 0x9fff ) AM_WRITE(ut88mini_write_led) // 7seg LED
ADDRESS_MAP_END

static ADDRESS_MAP_START( ut88_mem, AS_PROGRAM, 8, ut88_state )
	AM_RANGE( 0x0000, 0x07ff ) AM_RAMBANK("bank1") // First bank
	AM_RANGE( 0x0800, 0xdfff ) AM_RAM  // RAM
	AM_RANGE( 0xe000, 0xe7ff ) AM_RAM  // Video RAM (not used)
	AM_RANGE( 0xe800, 0xefff ) AM_RAM AM_SHARE("p_videoram") // Video RAM
	AM_RANGE( 0xf400, 0xf7ff ) AM_RAM  // System RAM
	AM_RANGE( 0xf800, 0xffff ) AM_ROM  // System ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( ut88mini_io, AS_IO, 8, ut88_state )
	AM_RANGE( 0xA0, 0xA0) AM_READ(ut88mini_keyboard_r)
	AM_RANGE( 0xA1, 0xA1) AM_READ(ut88_tape_r)
ADDRESS_MAP_END

static ADDRESS_MAP_START( ut88_io, AS_IO, 8, ut88_state )
	AM_RANGE( 0x04, 0x07) AM_READWRITE(ut88_keyboard_r, ut88_keyboard_w)
	AM_RANGE( 0xA1, 0xA1) AM_READWRITE(ut88_tape_r, ut88_sound_w)
ADDRESS_MAP_END

/* Input ports */
static INPUT_PORTS_START( ut88 )
	PORT_START("LINE0")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('\xA4')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE1")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_CHAR(':') PORT_CHAR('*')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') PORT_CHAR('=')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE2")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('@')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE3")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE4")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE5")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE6")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('~')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("<>") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('_')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE7")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME))
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("LINE8")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Rus/Lat") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
INPUT_PORTS_END

static INPUT_PORTS_START( ut88mini )
	PORT_START("LINE0")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_0)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_1)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_2)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_3)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_4)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_5)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_6)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_7)

	PORT_START("LINE1")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_8)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_9)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_A)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_B)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_C)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_D)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_E)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_F)

	PORT_START("LINE2")
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE)
INPUT_PORTS_END

/* Machine driver */
static MACHINE_CONFIG_START( ut88, ut88_state )
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", I8080, 2000000)
	MCFG_CPU_PROGRAM_MAP(ut88_mem)
	MCFG_CPU_IO_MAP(ut88_io)
	MCFG_MACHINE_RESET_OVERRIDE(ut88_state, ut88 )

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(50)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
	MCFG_SCREEN_SIZE(64*8, 28*8)
	MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 28*8-1)
	MCFG_VIDEO_START_OVERRIDE(ut88_state,ut88)
	MCFG_SCREEN_UPDATE_DRIVER(ut88_state, screen_update_ut88)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
	MCFG_GFXDECODE_ADD("gfxdecode", "palette", ut88 )

	/* audio hardware */
	MCFG_SPEAKER_STANDARD_MONO("mono")
	MCFG_SOUND_ADD("dac", DAC, 0)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)

	/* Devices */
	MCFG_DEVICE_ADD("ppi8255", I8255A, 0)
	MCFG_I8255_OUT_PORTA_CB(WRITE8(ut88_state, ut88_8255_porta_w))
	MCFG_I8255_IN_PORTB_CB(READ8(ut88_state, ut88_8255_portb_r))
	MCFG_I8255_IN_PORTC_CB(READ8(ut88_state, ut88_8255_portc_r))

	MCFG_CASSETTE_ADD( "cassette" )
	MCFG_CASSETTE_FORMATS(rku_cassette_formats)
	MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED)
	MCFG_CASSETTE_INTERFACE("ut88_cass")
	
	MCFG_SOFTWARE_LIST_ADD("cass_list","ut88")
MACHINE_CONFIG_END

static MACHINE_CONFIG_START( ut88mini, ut88_state )
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", I8080, 2000000)
	MCFG_CPU_PROGRAM_MAP(ut88mini_mem)
	MCFG_CPU_IO_MAP(ut88mini_io)
	MCFG_MACHINE_START_OVERRIDE(ut88_state,ut88mini)
	MCFG_MACHINE_RESET_OVERRIDE(ut88_state, ut88mini )

	/* video hardware */
	MCFG_DEFAULT_LAYOUT(layout_ut88mini)

	/* Cassette */
	MCFG_SPEAKER_STANDARD_MONO("mono")
	MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)

	MCFG_CASSETTE_ADD( "cassette" )
	MCFG_CASSETTE_FORMATS(rku_cassette_formats)
	MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED)
	MCFG_CASSETTE_INTERFACE("ut88_cass")
	
	MCFG_SOFTWARE_LIST_ADD("cass_list","ut88")
MACHINE_CONFIG_END

/* ROM definition */
ROM_START( ut88 )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "ut88.rom", 0xf800, 0x0800, CRC(f433202e) SHA1(a5808a4f68fb10eb7f17f2a05c3b8479fec0e05d) )
	ROM_REGION(0x0800, "chargen",0)
	ROM_LOAD ("ut88.fnt", 0x0000, 0x0800, CRC(874b4d29) SHA1(357efbb295cd9e47fa97d4d03f4f1859a915b5c3) )
ROM_END

ROM_START( ut88mini )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "ut88mini.rom", 0x0000, 0x0400, CRC(ce9213ee) SHA1(16b71b3051a800386d664dbcc5983b783475d0c6) )
	ROM_REGION( 0x200, "proms", 0 )
	ROM_LOAD( "ut88key1.rom", 0x0000, 0x0100, CRC(ecfe42c7) SHA1(d7f10bbb05934150c1a258db1c8b4eb65771af59) )
	ROM_LOAD( "ut88key2.rom", 0x0100, 0x0100, CRC(96324d23) SHA1(9dca3f639fc29d87df56505b3dde668ef2849da3) )
ROM_END

/* Driver */

/*    YEAR  NAME       PARENT    COMPAT  MACHINE     INPUT       INIT        COMPANY     FULLNAME       FLAGS */
COMP( 1989, ut88mini,  0,        0,      ut88mini,   ut88mini, ut88_state,   ut88mini, "<unknown>", "UT-88 mini", 0)
COMP( 1989, ut88,      ut88mini, 0,      ut88,       ut88, ut88_state,       ut88,     "<unknown>", "UT-88", 0)