diff options
Diffstat (limited to 'src/mess/drivers/dai.c')
-rw-r--r-- | src/mess/drivers/dai.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/src/mess/drivers/dai.c b/src/mess/drivers/dai.c new file mode 100644 index 00000000000..272596bb34b --- /dev/null +++ b/src/mess/drivers/dai.c @@ -0,0 +1,260 @@ +/******************************************************************************* + +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_LEGACY("pit8253", pit8253_r, pit8253_w ) + 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, 0xffff) AM_DEVREADWRITE("tms5501", tms5501_device, read, write ) +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 + +static const struct CassetteOptions dai_cassette_options = { + 1, /* channels */ + 16, /* bits per sample */ + 44100 /* sample frequency */ +}; + +static const cassette_interface dai_cassette_interface = +{ + cassette_default_formats, + &dai_cassette_options, + (cassette_state)(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED), + NULL, + NULL +}; + +/* 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_QUANTUM_TIME(attotime::from_hz(60)) + + MCFG_MACHINE_START( dai ) + MCFG_MACHINE_RESET( dai ) + + MCFG_PIT8253_ADD( "pit8253", dai_pit8253_intf ) + + MCFG_I8255_ADD( "ppi8255", dai_ppi82555_intf ) + + /* 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_STATIC( dai ) + + MCFG_GFXDECODE(dai) + MCFG_PALETTE_LENGTH(sizeof (dai_palette) / 3) + MCFG_PALETTE_INIT( dai ) + + MCFG_VIDEO_START( dai ) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_WAVE_ADD(WAVE_TAG, CASSETTE_TAG) + 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_TAG, dai_cassette_interface ) + + /* tms5501 */ + MCFG_TMS5501_ADD( "tms5501", 2000000, dai_tms5501_interface ) + + /* 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) |