// license:BSD-3-Clause // copyright-holders:Krzysztof Strzecha, Nathan Woods /******************************************************************************* DAI driver by Krzysztof Strzecha and Nathan Woods What's new: ----------- 21.05.2004 TMS5501 fixes. Debug code cleanups. 06.03.2004 Stack overflow interrupt added. 05.09.2003 Random number generator added. Few video hardware bugs fixed. Fixed few I8080 instructions, making much more BASIC games playable. Notes on emulation status and to do list: ----------------------------------------- 1. A lot to do. Too much to list. DAI technical information ========================== CPU: ---- I8080 2MHz Memory map: ----------- 0000-bfff RAM c000-dfff ROM (non-switchable) e000-efff ROM (4 switchable banks) f000-f7ff ROM extension (optional) f800-f8ff SRAM (stack) f900-ffff I/O f900-faff spare fb00-fbff AMD9511 math chip (optional) fc00-fcff 8253 programmable interval timer fd00-fdff discrete devices fe00-feff 8255 PIO (DCE bus) ff00-ffff timer + 5501 interrupt controller Interrupts: ----------- Keyboard: --------- Video: ----- Sound: ------ Timings: -------- *******************************************************************************/ #include "emu.h" #include "includes/dai.h" #include "screen.h" #include "speaker.h" /* memory w/r functions */ void dai_state::mem_map(address_map &map) { map(0x0000, 0xbfff).ram().share("mainram"); map(0xc000, 0xdfff).rom().region("maincpu",0); map(0xe000, 0xefff).bankr("bank2"); map(0xf000, 0xf7ff).w(FUNC(dai_state::stack_interrupt_circuit_w)); map(0xf800, 0xf8ff).ram(); map(0xfb00, 0xfbff).rw(FUNC(dai_state::amd9511_r), FUNC(dai_state::amd9511_w)); map(0xfc00, 0xfcff).rw(FUNC(dai_state::pit_r), FUNC(dai_state::pit_w)); // .rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0xfd00, 0xfdff).rw(FUNC(dai_state::io_discrete_devices_r), FUNC(dai_state::io_discrete_devices_w)); map(0xfe00, 0xfeff).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0xff00, 0xff0f).mirror(0xf0).m(m_tms5501, FUNC(tms5501_device::io_map)); } /* keyboard input */ static INPUT_PORTS_START (dai) PORT_START("IN0") /* [0] - port ff07 bit 0 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN1") /* [1] - port ff07 bit 1 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN2") /* [2] - port ff07 bit 2 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN3") /* [3] - port ff07 bit 3 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('[') PORT_CHAR(']') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN4") /* [4] - port ff07 bit 4 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('^') PORT_CHAR('~') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN5") /* [5] - port ff07 bit 5 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') PORT_CHAR('=') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN6") /* [6] - port ff07 bit 6 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Rept") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN7") /* [7] - port ff07 bit 7 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Char del") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("IN8") /* [8] */ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_VBLANK("screen") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2) PORT_BIT(0xcb, IP_ACTIVE_HIGH, IPT_UNUSED) INPUT_PORTS_END /* F4 Character Displayer */ static const gfx_layout dai_charlayout = { 8, 16, /* 8 x 16 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 7, 6, 5, 4, 3, 2, 1, 0 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( gfx_dai ) GFXDECODE_ENTRY( "chargen", 0x0000, dai_charlayout, 0, 8 ) GFXDECODE_END /* machine definition */ void dai_state::dai(machine_config &config) { /* basic machine hardware */ I8080(config, m_maincpu, 2000000); m_maincpu->set_addrmap(AS_PROGRAM, &dai_state::mem_map); m_maincpu->set_irq_acknowledge_callback(FUNC(dai_state::int_ack)); config.set_maximum_quantum(attotime::from_hz(60)); PIT8253(config, m_pit, 0); m_pit->set_clk<0>(2000000); m_pit->out_handler<0>().set(m_sound, FUNC(dai_sound_device::set_input_ch0)); m_pit->set_clk<1>(2000000); m_pit->out_handler<1>().set(m_sound, FUNC(dai_sound_device::set_input_ch1)); m_pit->set_clk<2>(2000000); m_pit->out_handler<2>().set(m_sound, FUNC(dai_sound_device::set_input_ch2)); I8255(config, "ppi"); /* 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(1056, 542); screen.set_visarea(0, 1056-1, 0, 302-1); screen.set_screen_update(FUNC(dai_state::screen_update)); screen.set_palette(m_palette); GFXDECODE(config, "gfxdecode", m_palette, gfx_dai); PALETTE(config, m_palette, FUNC(dai_state::dai_palette), ARRAY_LENGTH(s_palette)); /* sound hardware */ SPEAKER(config, "mono").front_center(); SPEAKER(config, "lspeaker").front_left(); SPEAKER(config, "rspeaker").front_right(); DAI_SOUND(config, m_sound).add_route(0, "lspeaker", 0.50).add_route(1, "rspeaker", 0.50); /* cassette */ CASSETTE(config, m_cassette); m_cassette->set_default_state(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED); m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); m_cassette->set_interface("dai_cass"); /* tms5501 */ TMS5501(config, m_tms5501, 2000000); m_tms5501->int_callback().set_inputline("maincpu", I8085_INTR_LINE); m_tms5501->xi_callback().set(FUNC(dai_state::keyboard_r)); m_tms5501->xo_callback().set(FUNC(dai_state::keyboard_w)); /* software lists */ SOFTWARE_LIST(config, "cass_list").set_original("dai_cass"); } ROM_START(dai) ROM_REGION(0x6000,"maincpu",0) ROM_LOAD("dai.bin", 0x0000, 0x2000, CRC(ca71a7d5) SHA1(6bbe2336c717354beab2ae201debeb4fd055bdcb)) ROM_LOAD("dai00.bin", 0x2000, 0x1000, CRC(fa7d39ac) SHA1(3d1824a1f273882f934249ef3cb1b38ef99de7b9)) ROM_LOAD("dai01.bin", 0x3000, 0x1000, CRC(cb5809f2) SHA1(523656f0a9d98888cd3e2bd66886c589e9ae75b4)) ROM_LOAD("dai02.bin", 0x4000, 0x1000, CRC(03f72d4a) SHA1(573d65dc82321970dcaf81d7638a02252ea18a7a)) ROM_LOAD("dai03.bin", 0x5000, 0x1000, CRC(c475c96f) SHA1(96fc3cc4b8a2873f0d044bd8033d1e7b7197dd97)) ROM_REGION(0x2000, "chargen",0) ROM_LOAD ("nch.bin", 0x0000, 0x1000, CRC(a9f5b30b) SHA1(24119b2984ab4e50dc0dabae1065ff6d6c1f237d)) ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME */ COMP( 1978, dai, 0, 0, dai, dai, dai_state, empty_init, "Data Applications International", "DAI Personal Computer", MACHINE_SUPPORTS_SAVE )