/******************************************************************************* 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" /* I/O ports */ static ADDRESS_MAP_START( dai_io , AS_IO, 8, dai_state ) ADDRESS_MAP_END /* memory w/r functions */ static ADDRESS_MAP_START( dai_mem , AS_PROGRAM, 8, dai_state ) AM_RANGE( 0x0000, 0xbfff) AM_RAMBANK("bank1") AM_RANGE( 0xc000, 0xdfff) AM_ROM AM_RANGE( 0xe000, 0xefff) AM_ROMBANK("bank2") AM_RANGE( 0xf000, 0xf7ff) AM_WRITE(dai_stack_interrupt_circuit_w ) AM_RANGE( 0xf800, 0xf8ff) AM_RAM AM_RANGE( 0xfb00, 0xfbff) AM_READWRITE(dai_amd9511_r, dai_amd9511_w ) AM_RANGE( 0xfc00, 0xfcff) AM_READWRITE(dai_pit_r, dai_pit_w) // AM_DEVREADWRITE("pit8253", pit8253_device, read, write) AM_RANGE( 0xfd00, 0xfdff) AM_READWRITE(dai_io_discrete_devices_r, dai_io_discrete_devices_w ) AM_RANGE( 0xfe00, 0xfeff) AM_DEVREADWRITE("ppi8255", i8255_device, read, write) AM_RANGE( 0xff00, 0xff0f) AM_MIRROR(0xf0) AM_DEVICE("tms5501", tms5501_device, io_map) ADDRESS_MAP_END /* 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( dai ) GFXDECODE_ENTRY( "gfx1", 0x0000, dai_charlayout, 0, 8 ) GFXDECODE_END /* machine definition */ static MACHINE_CONFIG_START( dai, dai_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I8080, 2000000) MCFG_CPU_PROGRAM_MAP(dai_mem) MCFG_CPU_IO_MAP(dai_io) MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(dai_state,int_ack) MCFG_QUANTUM_TIME(attotime::from_hz(60)) MCFG_DEVICE_ADD("pit8253", PIT8253, 0) MCFG_PIT8253_CLK0(2000000) MCFG_PIT8253_OUT0_HANDLER(DEVWRITELINE("custom", dai_sound_device, set_input_ch0)) MCFG_PIT8253_CLK1(2000000) MCFG_PIT8253_OUT1_HANDLER(DEVWRITELINE("custom", dai_sound_device, set_input_ch1)) MCFG_PIT8253_CLK2(2000000) MCFG_PIT8253_OUT2_HANDLER(DEVWRITELINE("custom", dai_sound_device, set_input_ch2)) MCFG_DEVICE_ADD("ppi8255", I8255, 0) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(1056, 542) MCFG_SCREEN_VISIBLE_AREA(0, 1056-1, 0, 302-1) MCFG_SCREEN_UPDATE_DRIVER(dai_state, screen_update_dai) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", dai) MCFG_PALETTE_ADD("palette", sizeof (dai_palette) / 3) MCFG_PALETTE_INIT_OWNER(dai_state, dai) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette") MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") MCFG_SOUND_ADD("custom", DAI_SOUND, 0) MCFG_SOUND_ROUTE(0, "lspeaker", 0.50) MCFG_SOUND_ROUTE(1, "rspeaker", 0.50) /* cassette */ MCFG_CASSETTE_ADD( "cassette" ) MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED) /* tms5501 */ MCFG_DEVICE_ADD("tms5501", TMS5501, 2000000) MCFG_TMS5501_IRQ_CALLBACK(INPUTLINE("maincpu", I8085_INTR_LINE)) MCFG_TMS5501_XI_CALLBACK(READ8(dai_state, dai_keyboard_r)) MCFG_TMS5501_XO_CALLBACK(WRITE8(dai_state, dai_keyboard_w)) /* internal ram */ MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("48K") MACHINE_CONFIG_END #define io_dai io_NULL ROM_START(dai) ROM_REGION(0x14000,"maincpu",0) ROM_LOAD("dai.bin", 0xc000, 0x2000, CRC(ca71a7d5) SHA1(6bbe2336c717354beab2ae201debeb4fd055bdcb)) ROM_LOAD("dai00.bin", 0x10000, 0x1000, CRC(fa7d39ac) SHA1(3d1824a1f273882f934249ef3cb1b38ef99de7b9)) ROM_LOAD("dai01.bin", 0x11000, 0x1000, CRC(cb5809f2) SHA1(523656f0a9d98888cd3e2bd66886c589e9ae75b4)) ROM_LOAD("dai02.bin", 0x12000, 0x1000, CRC(03f72d4a) SHA1(573d65dc82321970dcaf81d7638a02252ea18a7a)) ROM_LOAD("dai03.bin", 0x13000, 0x1000, CRC(c475c96f) SHA1(96fc3cc4b8a2873f0d044bd8033d1e7b7197dd97)) ROM_REGION(0x2000, "gfx1",0) ROM_LOAD ("nch.bin", 0x0000, 0x1000, CRC(a9f5b30b) SHA1(24119b2984ab4e50dc0dabae1065ff6d6c1f237d)) ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */ COMP( 1978, dai, 0, 0, dai, dai, driver_device, 0, "Data Applications International", "DAI Personal Computer", 0)