// license:BSD-3-Clause // 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 "emu.h" #include "includes/ut88.h" #include "formats/rk_cas.h" #include "softlist.h" #include "ut88mini.lh" #include "sound/volt_reg.h" #include "screen.h" #include "speaker.h" static GFXDECODE_START( gfx_ut88 ) GFXDECODE_ENTRY( "chargen", 0x0000, ut88_charlayout, 0, 1 ) GFXDECODE_END /* Address maps */ void ut88_state::ut88mini_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x03ff).rom(); // System ROM map(0xc000, 0xc3ff).ram(); // RAM map(0x9000, 0x9fff).w(FUNC(ut88_state::ut88mini_write_led)); // 7seg LED } void ut88_state::ut88_mem(address_map &map) { map(0x0000, 0x07ff).bankrw("bank1"); // First bank map(0x0800, 0xdfff).ram(); // RAM map(0xe000, 0xe7ff).ram(); // Video RAM (not used) map(0xe800, 0xefff).ram().share("videoram"); // Video RAM map(0xf400, 0xf7ff).ram(); // System RAM map(0xf800, 0xffff).rom(); // System ROM } void ut88_state::ut88mini_io(address_map &map) { map(0xA0, 0xA0).r(FUNC(ut88_state::ut88mini_keyboard_r)); map(0xA1, 0xA1).r(FUNC(ut88_state::ut88_tape_r)); } void ut88_state::ut88_io(address_map &map) { map(0x04, 0x07).rw(FUNC(ut88_state::ut88_keyboard_r), FUNC(ut88_state::ut88_keyboard_w)); map(0xA1, 0xA1).rw(FUNC(ut88_state::ut88_tape_r), FUNC(ut88_state::ut88_sound_w)); } /* 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(0xA4) 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_CHAR('0') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_START("LINE1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_START("LINE2") PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) INPUT_PORTS_END /* Machine driver */ void ut88_state::ut88(machine_config &config) { /* basic machine hardware */ I8080(config, m_maincpu, 2000000); m_maincpu->set_addrmap(AS_PROGRAM, &ut88_state::ut88_mem); m_maincpu->set_addrmap(AS_IO, &ut88_state::ut88_io); MCFG_MACHINE_RESET_OVERRIDE(ut88_state, ut88 ) /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(50); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_size(64*8, 28*8); screen.set_visarea(0, 64*8-1, 0, 28*8-1); screen.set_screen_update(FUNC(ut88_state::screen_update_ut88)); screen.set_palette(m_palette); MCFG_VIDEO_START_OVERRIDE(ut88_state,ut88) PALETTE(config, m_palette, palette_device::MONOCHROME); GFXDECODE(config, m_gfxdecode, m_palette, gfx_ut88); /* audio hardware */ SPEAKER(config, "speaker").front_center(); DAC_1BIT(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.25); voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0)); vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); /* Devices */ I8255A(config, m_ppi); m_ppi->out_pa_callback().set(FUNC(ut88_state::ut88_8255_porta_w)); m_ppi->in_pb_callback().set(FUNC(ut88_state::ut88_8255_portb_r)); m_ppi->in_pc_callback().set(FUNC(ut88_state::ut88_8255_portc_r)); CASSETTE(config, m_cassette); m_cassette->set_formats(rku_cassette_formats); m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED); m_cassette->add_route(ALL_OUTPUTS, "speaker", 0.05); m_cassette->set_interface("ut88_cass"); SOFTWARE_LIST(config, "cass_list").set_original("ut88"); } void ut88_state::ut88mini(machine_config &config) { /* basic machine hardware */ I8080(config, m_maincpu, 2000000); m_maincpu->set_addrmap(AS_PROGRAM, &ut88_state::ut88mini_mem); m_maincpu->set_addrmap(AS_IO, &ut88_state::ut88mini_io); MCFG_MACHINE_START_OVERRIDE(ut88_state,ut88mini) MCFG_MACHINE_RESET_OVERRIDE(ut88_state, ut88mini ) /* video hardware */ config.set_default_layout(layout_ut88mini); /* Cassette */ SPEAKER(config, "speaker").front_center(); CASSETTE(config, m_cassette); m_cassette->set_formats(rku_cassette_formats); m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED); m_cassette->add_route(ALL_OUTPUTS, "speaker", 0.05); m_cassette->set_interface("ut88_cass"); SOFTWARE_LIST(config, "cass_list").set_original("ut88"); } /* 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 CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1989, ut88mini, 0, 0, ut88mini, ut88mini, ut88_state, init_ut88mini, "", "UT-88 mini", 0) COMP( 1989, ut88, ut88mini, 0, ut88, ut88, ut88_state, init_ut88, "", "UT-88", 0)