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path: root/src/mame/drivers/mikrosha.cpp
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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************

        Mikrosha driver by Miodrag Milanovic

        05/06/2008 Preliminary driver.

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


#include "emu.h"
#include "includes/radio86.h"

#include "cpu/i8085/i8085.h"
#include "imagedev/cassette.h"
#include "machine/i8255.h"
#include "machine/pit8253.h"
#include "sound/wave.h"

#include "screen.h"
#include "softlist.h"
#include "speaker.h"

#include "formats/rk_cas.h"


class mikrosha_state : public radio86_state
{
public:
	mikrosha_state(const machine_config &mconfig, device_type type, const char *tag)
		: radio86_state(mconfig, type, tag)
	{ }

	DECLARE_WRITE_LINE_MEMBER(mikrosha_pit_out2);
	I8275_DRAW_CHARACTER_MEMBER(display_pixels);
	DECLARE_MACHINE_RESET(mikrosha);

	void mikrosha(machine_config &config);
	void mikrosha_io(address_map &map);
	void mikrosha_mem(address_map &map);
};

MACHINE_RESET_MEMBER(mikrosha_state,mikrosha)
{
	if (m_cart->exists())
		m_maincpu->space(AS_PROGRAM).install_read_handler(0x8000, 0x8000+m_cart->get_rom_size()-1, read8_delegate(FUNC(generic_slot_device::read_rom),(generic_slot_device*)m_cart));
	MACHINE_RESET_CALL_MEMBER(radio86);
}

/* Address maps */
void mikrosha_state::mikrosha_mem(address_map &map)
{
	map(0x0000, 0x0fff).bankrw("bank1"); // First bank
	map(0x1000, 0x7fff).ram(); // RAM
	map(0xc000, 0xc003).rw(m_ppi8255_1, FUNC(i8255_device::read), FUNC(i8255_device::write)).mirror(0x07fc);
	map(0xc800, 0xc803).rw(m_ppi8255_2, FUNC(i8255_device::read), FUNC(i8255_device::write)).mirror(0x07fc);
	map(0xd000, 0xd001).rw("i8275", FUNC(i8275_device::read), FUNC(i8275_device::write)).mirror(0x07fe); // video
	map(0xd800, 0xd803).rw("pit8253", FUNC(pit8253_device::read), FUNC(pit8253_device::write)).mirror(0x07fc); // Timer
	map(0xe000, 0xf7ff).r(this, FUNC(mikrosha_state::radio_cpu_state_r)); // Not connected
	map(0xf800, 0xffff).w(m_dma8257, FUNC(i8257_device::write));    // DMA
	map(0xf800, 0xffff).rom();  // System ROM
}

void mikrosha_state::mikrosha_io(address_map &map)
{
	map.unmap_value_high();
	map(0x00, 0xff).rw(this, FUNC(mikrosha_state::radio_io_r), FUNC(mikrosha_state::radio_io_w));
}

/* Input ports */
static INPUT_PORTS_START( mikrosha )
	PORT_START("LINE0")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('@')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X')

	PORT_START("LINE1")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')

	PORT_START("LINE2")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME))
	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_EQUALS) PORT_CHAR(':') PORT_CHAR('*')
	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_J) PORT_CHAR('J')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')

	PORT_START("LINE3")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_DEL)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR(';') PORT_CHAR('+')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[')

	PORT_START("LINE4")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PgUp") PORT_CODE(KEYCODE_PGUP)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR(0xA4)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\\')

	PORT_START("LINE5")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ins") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT))
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(END))
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']')

	PORT_START("LINE6")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Center") PORT_CODE(KEYCODE_F3)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('~')

	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("PgDn") PORT_CODE(KEYCODE_PGDN)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)

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

WRITE_LINE_MEMBER(mikrosha_state::mikrosha_pit_out2)
{
}

I8275_DRAW_CHARACTER_MEMBER(mikrosha_state::display_pixels)
{
	int i;
	const rgb_t *palette = m_palette->palette()->entry_list_raw();
	const uint8_t *charmap = m_charmap + (m_mikrosha_font_page & 1) * 0x400;
	uint8_t pixels = charmap[(linecount & 7) + (charcode << 3)] ^ 0xff;
	if (vsp) {
		pixels = 0;
	}
	if (lten) {
		pixels = 0xff;
	}
	if (rvv) {
		pixels ^= 0xff;
	}
	for(i=0;i<6;i++) {
		bitmap.pix32(y, x + i) = palette[(pixels >> (5-i)) & 1 ? (hlgt ? 2 : 1) : 0];
	}
}

/* F4 Character Displayer */
static const gfx_layout mikrosha_charlayout =
{
	8, 8,                   /* 8 x 8 characters */
	256,                    /* 256 characters */
	1,                  /* 1 bits per pixel */
	{ 0 },                  /* no bitplanes */
	/* x offsets */
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	/* y offsets */
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8                 /* every char takes 8 bytes */
};

static GFXDECODE_START( gfx_mikrosha )
	GFXDECODE_ENTRY( "gfx1", 0x0000, mikrosha_charlayout, 0, 1 )
GFXDECODE_END

MACHINE_CONFIG_START(mikrosha_state::mikrosha)
	/* basic machine hardware */
	MCFG_DEVICE_ADD("maincpu", I8080, XTAL(16'000'000) / 9)
	MCFG_DEVICE_PROGRAM_MAP(mikrosha_mem)
	MCFG_DEVICE_IO_MAP(mikrosha_io)

	MCFG_MACHINE_RESET_OVERRIDE(mikrosha_state, mikrosha)

	MCFG_DEVICE_ADD("ppi8255_1", I8255, 0)
	MCFG_I8255_IN_PORTA_CB(READ8(*this, radio86_state, radio86_8255_portb_r2))
	MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, radio86_state, radio86_8255_porta_w2))
	MCFG_I8255_IN_PORTC_CB(READ8(*this, radio86_state, radio86_8255_portc_r2))
	MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, radio86_state, radio86_8255_portc_w2))

	MCFG_DEVICE_ADD("ppi8255_2", I8255, 0)
	MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, radio86_state, mikrosha_8255_font_page_w))

	MCFG_DEVICE_ADD("i8275", I8275, XTAL(16'000'000) / 12)
	MCFG_I8275_CHARACTER_WIDTH(6)
	MCFG_I8275_DRAW_CHARACTER_CALLBACK_OWNER(mikrosha_state, display_pixels)
	MCFG_I8275_DRQ_CALLBACK(WRITELINE("dma8257",i8257_device, dreq2_w))

	MCFG_DEVICE_ADD("pit8253", PIT8253, 0)
	MCFG_PIT8253_CLK0(0)
	MCFG_PIT8253_CLK1(0)
	MCFG_PIT8253_CLK2(2000000)
	MCFG_PIT8253_OUT2_HANDLER(WRITELINE(*this, mikrosha_state, mikrosha_pit_out2))

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_UPDATE_DEVICE("i8275", i8275_device, screen_update)
	MCFG_SCREEN_REFRESH_RATE(50)
	MCFG_SCREEN_SIZE(78*6, 30*10)
	MCFG_SCREEN_VISIBLE_AREA(0, 78*6-1, 0, 30*10-1)

	MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_mikrosha)
	MCFG_PALETTE_ADD("palette", 3)
	MCFG_PALETTE_INIT_OWNER(mikrosha_state,radio86)

	SPEAKER(config, "mono").front_center();
	WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "mono", 0.25);

	MCFG_DEVICE_ADD("dma8257", I8257, XTAL(16'000'000) / 9)
	MCFG_I8257_OUT_HRQ_CB(WRITELINE(*this, radio86_state, hrq_w))
	MCFG_I8257_IN_MEMR_CB(READ8(*this, radio86_state, memory_read_byte))
	MCFG_I8257_OUT_MEMW_CB(WRITE8(*this, radio86_state, memory_write_byte))
	MCFG_I8257_OUT_IOW_2_CB(WRITE8("i8275", i8275_device, dack_w))
	MCFG_I8257_REVERSE_RW_MODE(1)

	MCFG_CASSETTE_ADD( "cassette" )
	MCFG_CASSETTE_FORMATS(rkm_cassette_formats)
	MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED)
	MCFG_CASSETTE_INTERFACE("mikrosha_cass")

	MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "mikrosha_cart")
	MCFG_GENERIC_EXTENSIONS("bin,rom")

	MCFG_SOFTWARE_LIST_ADD("cass_list", "mikrosha_cass")
	MCFG_SOFTWARE_LIST_ADD("cart_list", "mikrosha_cart")
MACHINE_CONFIG_END


/* ROM definition */
ROM_START( mikrosha )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "mikrosha.rom", 0xf800, 0x0800, CRC(86a83556) SHA1(94b1baad0a419145939a891ff51f4324e8e4ddd2))
	ROM_REGION(0x0800, "gfx1",0)
	ROM_LOAD ("mikrosha.fnt", 0x0000, 0x0800, CRC(b315da1c) SHA1(b5bf9abc0fff75b1aba709a7f08b23d4a89bb04b))
ROM_END

ROM_START( m86rk )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "m86rk.bin", 0xf800, 0x0800, CRC(a898d77a) SHA1(c2497bf8434b5028fe0a9fc09be311465d5553a5))
	ROM_REGION(0x0800, "gfx1",0)
	/* here should probably be different rom */
	ROM_LOAD ("mikrosha.fnt", 0x0000, 0x0800, CRC(b315da1c) SHA1(b5bf9abc0fff75b1aba709a7f08b23d4a89bb04b))
ROM_END

/* Driver */
//    YEAR  NAME      PARENT   COMPAT  MACHINE   INPUT     CLASS           INIT          COMPANY                                FULLNAME         FLAGS
COMP( 1987, mikrosha, radio86, 0,      mikrosha, mikrosha, mikrosha_state, init_radio86, "Lianozovo Electromechanical Factory", "Mikrosha",      0)
COMP( 1987, m86rk,    radio86, 0,      mikrosha, mikrosha, mikrosha_state, init_radio86, "<unknown>",                           "Mikrosha-86RK", 0)