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// license:BSD-3-Clause
// copyright-holders:Robbbert
/***************************************************************************

Z80 dev board (unknown)

http://retro.hansotten.nl/index.php?page=z80-dev-kit

2010-04-23 Skeleton driver.

Pasting:
        0-F : as is
        MEM --> (inc) : ^
        MEM <-- (dec) : V
        GO : X
        To set an address, paste R0<address>, so R01040 to select 1040

Example paste: R01040^11^22^33^44^55^66^77^88^99^^R01040^
Press the up-arrow key to confirm data has been entered.


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

#include "emu.h"
#include "cpu/z80/z80.h"
#include "z80dev.lh"

class z80dev_state : public driver_device
{
public:
	z80dev_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag)
		, m_maincpu(*this, "maincpu")
	{ }

	DECLARE_WRITE8_MEMBER( display_w );
	DECLARE_READ8_MEMBER( test_r );
	void z80dev(machine_config &config);
	void io_map(address_map &map);
	void mem_map(address_map &map);
private:
	required_device<cpu_device> m_maincpu;
};

WRITE8_MEMBER( z80dev_state::display_w )
{
	// ---- xxxx digit
	// xxxx ---- ???
	static const uint8_t hex_7seg[] = {0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71};

	output().set_digit_value(offset, hex_7seg[data&0x0f]);
}

READ8_MEMBER( z80dev_state::test_r )
{
	return machine().rand();
}

ADDRESS_MAP_START(z80dev_state::mem_map)
	ADDRESS_MAP_UNMAP_HIGH
	AM_RANGE(0x0000, 0x07ff) AM_ROM
	AM_RANGE(0x1000, 0x10ff) AM_RAM
ADDRESS_MAP_END

ADDRESS_MAP_START(z80dev_state::io_map)
	ADDRESS_MAP_UNMAP_HIGH
	ADDRESS_MAP_GLOBAL_MASK (0xff)
	AM_RANGE(0x20, 0x20) AM_READ_PORT("LINE0")
	AM_RANGE(0x21, 0x21) AM_READ_PORT("LINE1")
	AM_RANGE(0x22, 0x22) AM_READ_PORT("LINE2")
	AM_RANGE(0x23, 0x23) AM_READ_PORT("LINE3")
	AM_RANGE(0x20, 0x25) AM_WRITE(display_w)

	AM_RANGE(0x13, 0x13) AM_READ(test_r)
ADDRESS_MAP_END

/* Input ports */
INPUT_PORTS_START( z80dev )
	PORT_START("LINE0")
		PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
		PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
		PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
		PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RUN") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("STEP") PORT_CODE(KEYCODE_T)
		PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BK") PORT_CODE(KEYCODE_K)
	PORT_START("LINE1")
		PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
		PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
		PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
		PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("REG") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("MEM <--") PORT_CODE(KEYCODE_DOWN) PORT_CHAR('V')
		PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("MEM -->") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
	PORT_START("LINE2")
		PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
		PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
		PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
		PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("MV") PORT_CODE(KEYCODE_M)
		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("EI") PORT_CODE(KEYCODE_I)
		PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I/O") PORT_CODE(KEYCODE_O)
	PORT_START("LINE3")
		PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
		PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
		PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
		PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SV") PORT_CODE(KEYCODE_S)
		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LD") PORT_CODE(KEYCODE_L)
INPUT_PORTS_END

MACHINE_CONFIG_START(z80dev_state::z80dev)
	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu",Z80, XTAL(4'000'000))
	MCFG_CPU_PROGRAM_MAP(mem_map)
	MCFG_CPU_IO_MAP(io_map)

	/* video hardware */
	MCFG_DEFAULT_LAYOUT(layout_z80dev)
MACHINE_CONFIG_END

/* ROM definition */
ROM_START( z80dev )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "z80dev.bin", 0x0000, 0x0800, CRC(dd5b9cd9) SHA1(97c176fcb63674f0592851b7858cb706886b5857))
ROM_END

/* Driver */

/*    YEAR  NAME    PARENT  COMPAT   MACHINE    INPUT   STATE          INIT  COMPANY      FULLNAME         FLAGS */
COMP( 198?, z80dev, 0,      0,       z80dev,    z80dev, z80dev_state,  0,    "<unknown>", "Z80 dev board", MACHINE_NO_SOUND_HW)