// 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 "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) { } void mikrosha(machine_config &config); private: void mikrosha_8255_font_page_w(uint8_t data); DECLARE_WRITE_LINE_MEMBER(mikrosha_pit_out2); I8275_DRAW_CHARACTER_MEMBER(display_pixels); virtual void machine_reset() override; void mikrosha_io(address_map &map); void mikrosha_mem(address_map &map); uint8_t m_mikrosha_font_page; }; void mikrosha_state::machine_reset() { if (m_cart->exists()) m_maincpu->space(AS_PROGRAM).install_read_handler(0x8000, 0x8000 + m_cart->get_rom_size() - 1, read8sm_delegate(*m_cart, FUNC(generic_slot_device::read_rom))); radio86_state::machine_reset(); } /* 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(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(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 void mikrosha_state::mikrosha_8255_font_page_w(uint8_t data) { m_mikrosha_font_page = (data >> 7) & 1; } WRITE_LINE_MEMBER(mikrosha_state::mikrosha_pit_out2) { } I8275_DRAW_CHARACTER_MEMBER(mikrosha_state::display_pixels) { rgb_t const *const palette = m_palette->palette()->entry_list_raw(); uint8_t const *const 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(int 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 void mikrosha_state::mikrosha(machine_config &config) { /* basic machine hardware */ I8080(config, m_maincpu, XTAL(16'000'000) / 9); m_maincpu->set_addrmap(AS_PROGRAM, &mikrosha_state::mikrosha_mem); m_maincpu->set_addrmap(AS_IO, &mikrosha_state::mikrosha_io); I8255(config, m_ppi8255_1); m_ppi8255_1->in_pa_callback().set(FUNC(radio86_state::radio86_8255_portb_r2)); m_ppi8255_1->out_pb_callback().set(FUNC(radio86_state::radio86_8255_porta_w2)); m_ppi8255_1->in_pc_callback().set(FUNC(radio86_state::radio86_8255_portc_r2)); m_ppi8255_1->out_pc_callback().set(FUNC(radio86_state::radio86_8255_portc_w2)); I8255(config, m_ppi8255_2); m_ppi8255_2->out_pb_callback().set(FUNC(mikrosha_state::mikrosha_8255_font_page_w)); m_ppi8255_2->tri_pb_callback().set_constant(0); i8275_device &i8275(I8275(config, "i8275", XTAL(16'000'000) / 12)); i8275.set_character_width(6); i8275.set_display_callback(FUNC(mikrosha_state::display_pixels)); i8275.drq_wr_callback().set(m_dma8257, FUNC(i8257_device::dreq2_w)); pit8253_device &pit8253(PIT8253(config, "pit8253", 0)); pit8253.set_clk<0>(0); pit8253.set_clk<1>(0); pit8253.set_clk<2>(2000000); pit8253.out_handler<2>().set(FUNC(mikrosha_state::mikrosha_pit_out2)); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_screen_update("i8275", FUNC(i8275_device::screen_update)); screen.set_refresh_hz(50); screen.set_size(78*6, 30*10); screen.set_visarea(0, 78*6-1, 0, 30*10-1); GFXDECODE(config, "gfxdecode", m_palette, gfx_mikrosha); PALETTE(config, m_palette, FUNC(mikrosha_state::radio86_palette), 3); SPEAKER(config, "mono").front_center(); I8257(config, m_dma8257, XTAL(16'000'000) / 9); m_dma8257->out_hrq_cb().set(FUNC(radio86_state::hrq_w)); m_dma8257->in_memr_cb().set(FUNC(radio86_state::memory_read_byte)); m_dma8257->out_memw_cb().set(FUNC(radio86_state::memory_write_byte)); m_dma8257->out_iow_cb<2>().set("i8275", FUNC(i8275_device::dack_w)); m_dma8257->set_reverse_rw_mode(1); CASSETTE(config, m_cassette); m_cassette->set_formats(rkm_cassette_formats); m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED); m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); m_cassette->set_interface("mikrosha_cass"); GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "mikrosha_cart", "bin,rom"); SOFTWARE_LIST(config, "cass_list").set_original("mikrosha_cass"); SOFTWARE_LIST(config, "cart_list").set_original("mikrosha_cart"); } /* 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, "", "Mikrosha-86RK", 0)