diff options
Diffstat (limited to 'src/mame/drivers/gridlee.c')
-rw-r--r-- | src/mame/drivers/gridlee.c | 501 |
1 files changed, 501 insertions, 0 deletions
diff --git a/src/mame/drivers/gridlee.c b/src/mame/drivers/gridlee.c new file mode 100644 index 00000000000..307699ca45b --- /dev/null +++ b/src/mame/drivers/gridlee.c @@ -0,0 +1,501 @@ +/*************************************************************************** + + Videa Gridlee hardware + + driver by Aaron Giles + + special thanks to Howard Delman, Roger Hector and Ed Rotberg for + allowing distribution of the Gridlee ROMs + + Based on the Bally/Sente SAC system + + Games supported: + * Gridlee + + Known bugs: + * analog sound hardware is unemulated + +**************************************************************************** + + Memory map + +**************************************************************************** + + ======================================================================== + CPU #1 + ======================================================================== + 0000-007F R/W xxxxxxxx Sprite RAM (32 entries x 4 bytes) + R/W xxxxxxxx (0: image number) + R/W -------- (1: unused?) + R/W xxxxxxxx (2: Y position, offset by 17 pixels) + R/W xxxxxxxx (3: X position) + 0080-07FF R/W xxxxxxxx Program RAM + 0800-7FFF R/W xxxxxxxx Video RAM (256x240 pixels) + R/W xxxx---- (left pixel) + R/W ----xxxx (right pixel) + 9000 W -------x Player 1 LED + 9010 W -------x Player 2 LED + 9020 W -------x Coin counter + 9060 W -------x Unknown (written once at startup) + 9070 W -------x Cocktail flip + 9200 W --xxxxxx Palette base select + 9380 W -------- Watchdog reset + 9500 R ---xxxxx Trackball Y position + R ---x---- Sign of delta + R ----xxxx Cumulative magnitude + 9501 R ---xxxxx Trackball X position + R ---x---- Sign of delta + R ----xxxx Cumulative magnitude + 9502 R ------x- Fire button 2 + R -------x Fire button 1 + 9503 R --xx---- Coinage switches + R ----x--- 2 player start + R -----x-- 1 player start + R ------x- Right coin + R -------x Left coin + 9600 R x------- Reset game data switch + R -x------ Reset hall of fame switch + R --x----- Cocktail/upright switch + R ---x---- Free play switch + R ----xx-- Lives switches + R ------xx Bonus lives switches + 9700 R x------- VBLANK + R -x------ Service advance + R --x----- Service switch + 9820 R xxxxxxxx Random number generator + 9828-982C W ???????? Unknown + 9830-983F W ???????? Unknown (sound-related) + 9C00-9CFF R/W -------- NVRAM + A000-FFFF R xxxxxxxx Fixed program ROM + ======================================================================== + Interrupts: + NMI not connected + IRQ generated by 32L + FIRQ generated by ??? (but should be around scanline 92) + ======================================================================== + +***************************************************************************/ + + +#include "driver.h" +#include "cpu/m6809/m6809.h" +#include "gridlee.h" +#include "balsente.h" +#include "sound/custom.h" +#include "sound/samples.h" + + +/* constants */ +#define FIRQ_SCANLINE 92 + + +/* local variables */ +static UINT8 last_analog_input[2]; +static UINT8 last_analog_output[2]; + +/* random number generator states */ +static UINT8 *poly17 = NULL; +static UINT8 *rand17 = NULL; + + + +/* local prototypes */ +static void poly17_init(void); + + +/************************************* + * + * Interrupt handling + * + *************************************/ + +static TIMER_CALLBACK( irq_off ) +{ + cpunum_set_input_line(0, M6809_IRQ_LINE, CLEAR_LINE); +} + + +static TIMER_CALLBACK( irq_timer ) +{ + /* next interrupt after scanline 256 is scanline 64 */ + if (param == 256) + timer_set(video_screen_get_time_until_pos(0, 64, 0), 64, irq_timer); + else + timer_set(video_screen_get_time_until_pos(0, param + 64, 0), param + 64, irq_timer); + + /* IRQ starts on scanline 0, 64, 128, etc. */ + cpunum_set_input_line(0, M6809_IRQ_LINE, ASSERT_LINE); + + /* it will turn off on the next HBLANK */ + timer_set(video_screen_get_time_until_pos(0, param, BALSENTE_HBSTART), 0, irq_off); +} + + +static TIMER_CALLBACK( firq_off ) +{ + cpunum_set_input_line(0, M6809_FIRQ_LINE, CLEAR_LINE); +} + + +static TIMER_CALLBACK( firq_timer ) +{ + /* same time next frame */ + timer_set(video_screen_get_time_until_pos(0, FIRQ_SCANLINE, 0), 0, firq_timer); + + /* IRQ starts on scanline FIRQ_SCANLINE? */ + cpunum_set_input_line(0, M6809_FIRQ_LINE, ASSERT_LINE); + + /* it will turn off on the next HBLANK */ + timer_set(video_screen_get_time_until_pos(0, FIRQ_SCANLINE, BALSENTE_HBSTART), 0, firq_off); +} + + +static MACHINE_RESET( gridlee ) +{ + /* start timers to generate interrupts */ + timer_set(video_screen_get_time_until_pos(0, 0, 0), 0, irq_timer); + timer_set(video_screen_get_time_until_pos(0, FIRQ_SCANLINE, 0), 0, firq_timer); + + /* create the polynomial tables */ + poly17_init(); +} + + + +/************************************* + * + * ADC handlers + * + *************************************/ + +static READ8_HANDLER( analog_port_r ) +{ + int delta, sign, magnitude; + UINT8 newval; + + /* first read the new trackball value and compute the signed delta */ + newval = readinputport(offset + 2 * gridlee_cocktail_flip); + delta = (int)newval - (int)last_analog_input[offset]; + + /* handle the case where we wrap around from 0x00 to 0xff, or vice versa */ + if (delta >= 0x80) + delta -= 0x100; + if (delta <= -0x80) + delta += 0x100; + + /* just return the previous value for deltas less than 2, which are ignored */ + if (delta >= -1 && delta <= 1) + return last_analog_output[offset]; + last_analog_input[offset] = newval; + + /* compute the sign and the magnitude */ + sign = (delta < 0) ? 0x10 : 0x00; + magnitude = (delta < 0) ? -delta : delta; + + /* add the magnitude to the running total */ + last_analog_output[offset] += magnitude; + + /* or in the sign bit and return that */ + return (last_analog_output[offset] & 15) | sign; +} + + + +/************************************* + * + * MM5837 noise generator + * + * NOTE: this is stolen straight from + * POKEY.c + * + * NOTE: this is assumed to be the + * same as balsente.c + * + *************************************/ + +#define POLY17_BITS 17 +#define POLY17_SIZE ((1 << POLY17_BITS) - 1) +#define POLY17_SHL 7 +#define POLY17_SHR 10 +#define POLY17_ADD 0x18000 + +static void poly17_init(void) +{ + UINT32 i, x = 0; + UINT8 *p, *r; + + /* allocate memory */ + p = poly17 = auto_malloc(2 * (POLY17_SIZE + 1)); + r = rand17 = poly17 + POLY17_SIZE + 1; + + /* generate the polynomial */ + for (i = 0; i < POLY17_SIZE; i++) + { + /* store new values */ + *p++ = x & 1; + *r++ = x >> 3; + + /* calculate next bit */ + x = ((x << POLY17_SHL) + (x >> POLY17_SHR) + POLY17_ADD) & POLY17_SIZE; + } +} + + + +/************************************* + * + * Hardware random numbers + * + *************************************/ + +static READ8_HANDLER( random_num_r ) +{ + UINT32 cc; + + /* CPU runs at 1.25MHz, noise source at 100kHz --> multiply by 12.5 */ + cc = activecpu_gettotalcycles(); + + /* 12.5 = 8 + 4 + 0.5 */ + cc = (cc << 3) + (cc << 2) + (cc >> 1); + return rand17[cc & POLY17_SIZE]; +} + + + +/************************************* + * + * Misc handlers + * + *************************************/ + +static WRITE8_HANDLER( led_0_w ) +{ + set_led_status(0, data & 1); + logerror("LED 0 %s\n", (data & 1) ? "on" : "off"); +} + + +static WRITE8_HANDLER( led_1_w ) +{ + set_led_status(1, data & 1); + logerror("LED 1 %s\n", (data & 1) ? "on" : "off"); +} + + +static WRITE8_HANDLER( gridlee_coin_counter_w ) +{ + coin_counter_w(0, data & 1); + logerror("coin counter %s\n", (data & 1) ? "on" : "off"); +} + + + +/************************************* + * + * Main CPU memory handlers + * + *************************************/ + +/* CPU 1 read addresses */ +static ADDRESS_MAP_START( readmem_cpu1, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_RAM) + AM_RANGE(0x9500, 0x9501) AM_READ(analog_port_r) + AM_RANGE(0x9502, 0x9502) AM_READ(input_port_4_r) + AM_RANGE(0x9503, 0x9503) AM_READ(input_port_5_r) + AM_RANGE(0x9600, 0x9600) AM_READ(input_port_6_r) + AM_RANGE(0x9700, 0x9700) AM_READ(input_port_7_r) + AM_RANGE(0x9820, 0x9820) AM_READ(random_num_r) + AM_RANGE(0x9c00, 0x9cff) AM_READ(MRA8_RAM) + AM_RANGE(0xa000, 0xffff) AM_READ(MRA8_ROM) +ADDRESS_MAP_END + + +static ADDRESS_MAP_START( writemem_cpu1, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x07ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram) + AM_RANGE(0x0800, 0x7fff) AM_WRITE(gridlee_videoram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size) + AM_RANGE(0x9000, 0x9000) AM_WRITE(led_0_w) + AM_RANGE(0x9010, 0x9010) AM_WRITE(led_1_w) + AM_RANGE(0x9020, 0x9020) AM_WRITE(gridlee_coin_counter_w) +/* { 0x9060, 0x9060, unknown - only written to at startup */ + AM_RANGE(0x9070, 0x9070) AM_WRITE(gridlee_cocktail_flip_w) + AM_RANGE(0x9200, 0x9200) AM_WRITE(gridlee_palette_select_w) + AM_RANGE(0x9380, 0x9380) AM_WRITE(watchdog_reset_w) + AM_RANGE(0x9700, 0x9700) AM_WRITE(MWA8_NOP) + AM_RANGE(0x9828, 0x993f) AM_WRITE(gridlee_sound_w) + AM_RANGE(0x9c00, 0x9cff) AM_WRITE(MWA8_RAM) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size) + AM_RANGE(0xa000, 0xffff) AM_WRITE(MWA8_ROM) +ADDRESS_MAP_END + + + +/************************************* + * + * Port definitions + * + *************************************/ + +static INPUT_PORTS_START( gridlee ) + PORT_START /* 9500 (fake) */ + PORT_BIT( 0xff, 0, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(8) + + PORT_START /* 9501 (fake) */ + PORT_BIT( 0xff, 0, IPT_TRACKBALL_X ) PORT_SENSITIVITY(20) PORT_KEYDELTA(8) PORT_REVERSE + + PORT_START /* 9500 (fake) */ + PORT_BIT( 0xff, 0, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(8) PORT_COCKTAIL + + PORT_START /* 9501 (fake) */ + PORT_BIT( 0xff, 0, IPT_TRACKBALL_X ) PORT_SENSITIVITY(20) PORT_KEYDELTA(8) PORT_REVERSE PORT_COCKTAIL + + PORT_START /* 9502 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL + PORT_BIT( 0xfc, IP_ACTIVE_LOW, IPT_UNKNOWN ) + + PORT_START /* 9503 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 ) + PORT_DIPNAME( 0x30, 0x00, DEF_STR( Coinage )) + PORT_DIPSETTING( 0x20, DEF_STR( 2C_1C )) + PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C )) + PORT_DIPSETTING( 0x10, DEF_STR( 1C_2C )) + PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNKNOWN ) + + PORT_START /* 9600 */ + PORT_DIPNAME( 0x03, 0x01, DEF_STR( Bonus_Life )) + PORT_DIPSETTING( 0x00, "8000 points" ) + PORT_DIPSETTING( 0x01, "10000 points" ) + PORT_DIPSETTING( 0x02, "12000 points" ) + PORT_DIPSETTING( 0x03, "14000 points" ) + PORT_DIPNAME( 0x0c, 0x04, DEF_STR( Lives )) + PORT_DIPSETTING( 0x00, "2" ) + PORT_DIPSETTING( 0x04, "3" ) + PORT_DIPSETTING( 0x08, "4" ) + PORT_DIPSETTING( 0x0c, "5" ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Free_Play )) + PORT_DIPSETTING( 0x00, DEF_STR( Off )) + PORT_DIPSETTING( 0x10, DEF_STR( On )) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Cabinet ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Cocktail ) ) + PORT_DIPNAME( 0x40, 0x00, "Reset Hall of Fame" ) + PORT_DIPSETTING( 0x00, DEF_STR( No )) + PORT_DIPSETTING( 0x40, DEF_STR( Yes )) + PORT_DIPNAME( 0x80, 0x00, "Reset Game Data" ) + PORT_DIPSETTING( 0x00, DEF_STR( No )) + PORT_DIPSETTING( 0x80, DEF_STR( Yes )) + + PORT_START /* 9700 */ + PORT_BIT( 0x1f, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_SERVICE( 0x20, IP_ACTIVE_LOW ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 ) + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK ) +INPUT_PORTS_END + + + +/************************************* + * + * Sound definitions + * + *************************************/ + +static struct CustomSound_interface custom_interface = +{ + gridlee_sh_start +}; + + +static const char *sample_names[] = +{ + "*gridlee", + "bounce1.wav", + "bounce2.wav", + 0 /* end of array */ +}; + +static struct Samplesinterface samples_interface = +{ + 8, /* 8 channels */ + sample_names +}; + + + +/************************************* + * + * Machine driver + * + *************************************/ + +static MACHINE_DRIVER_START( gridlee ) + + /* basic machine hardware */ + MDRV_CPU_ADD(M6809, BALSENTE_CPU_CLOCK) + MDRV_CPU_PROGRAM_MAP(readmem_cpu1,writemem_cpu1) + + MDRV_MACHINE_RESET(gridlee) + MDRV_NVRAM_HANDLER(generic_0fill) + + /* video hardware */ + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MDRV_SCREEN_RAW_PARAMS(BALSENTE_PIXEL_CLOCK, BALSENTE_HTOTAL, BALSENTE_HBEND, BALSENTE_HBSTART, BALSENTE_VTOTAL, BALSENTE_VBEND, BALSENTE_VBSTART) + MDRV_PALETTE_LENGTH(2048) + + MDRV_PALETTE_INIT(gridlee) + MDRV_VIDEO_START(gridlee) + MDRV_VIDEO_UPDATE(gridlee) + + /* sound hardware */ + MDRV_SPEAKER_STANDARD_MONO("mono") + + MDRV_SOUND_ADD(CUSTOM, 0) + MDRV_SOUND_CONFIG(custom_interface) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) + + MDRV_SOUND_ADD(SAMPLES, 0) + MDRV_SOUND_CONFIG(samples_interface) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) +MACHINE_DRIVER_END + + + +/************************************* + * + * ROM definitions + * + *************************************/ + +ROM_START( gridlee ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "gridfnla.bin", 0xa000, 0x1000, CRC(1c43539e) SHA1(8b4a6f5c2c22bb021937157606d2129e2b01f718) ) + ROM_LOAD( "gridfnlb.bin", 0xb000, 0x1000, CRC(c48b91b8) SHA1(651210470ddf7c14f16f6c3046a9b8e903824ab8) ) + ROM_LOAD( "gridfnlc.bin", 0xc000, 0x1000, CRC(6ad436dd) SHA1(f393b63077f249d34a8e85649aea58b27a0425b1) ) + ROM_LOAD( "gridfnld.bin", 0xd000, 0x1000, CRC(f7188ddb) SHA1(eeb3f7dd8c61689cdd9992280ee1b3b5dc79a54c) ) + ROM_LOAD( "gridfnle.bin", 0xe000, 0x1000, CRC(d5330bee) SHA1(802bb5705d4cd22d556c1bcbcf730d688ca8e8ab) ) + ROM_LOAD( "gridfnlf.bin", 0xf000, 0x1000, CRC(695d16a3) SHA1(53d22cbedbedad8c89a964b6a38b7075c43cf03b) ) + + ROM_REGION( 0x4000, REGION_GFX1, 0 ) + ROM_LOAD( "gridpix0.bin", 0x0000, 0x1000, CRC(e6ea15ae) SHA1(2c482e25ea44aafd63ca5533b5a2e2dd8bf89365) ) + ROM_LOAD( "gridpix1.bin", 0x1000, 0x1000, CRC(d722f459) SHA1(8cad028eefbba387bdd57fb8bb3a855ae314fb32) ) + ROM_LOAD( "gridpix2.bin", 0x2000, 0x1000, CRC(1e99143c) SHA1(89c2f772cd15f2c37c8167a03dc4c7d1c923e4c3) ) + ROM_LOAD( "gridpix3.bin", 0x3000, 0x1000, CRC(274342a0) SHA1(818cfd4132183d922ff4585c73f2cd6e4546c75b) ) + + ROM_REGION( 0x1800, REGION_PROMS, 0 ) + ROM_LOAD( "grdrprom.bin", 0x0000, 0x800, CRC(f28f87ed) SHA1(736f38c3ec5455de1266aad348ba708d7201b21a) ) + ROM_LOAD( "grdgprom.bin", 0x0800, 0x800, CRC(921b0328) SHA1(59d1a3d3a90bd680a75adca5dd1b4682236c673b) ) + ROM_LOAD( "grdbprom.bin", 0x1000, 0x800, CRC(04350348) SHA1(098fec3073143e0b8746e728d7d321f2a353286f) ) +ROM_END + + + +/************************************* + * + * Game drivers + * + *************************************/ + +GAME( 1983, gridlee, 0, gridlee, gridlee, 0, ROT0, "Videa", "Gridlee", GAME_IMPERFECT_SOUND ) |