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-rw-r--r--src/mame/audio/mw8080bw.c4064
1 files changed, 4064 insertions, 0 deletions
diff --git a/src/mame/audio/mw8080bw.c b/src/mame/audio/mw8080bw.c
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index 00000000000..1f010dc7b5c
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+++ b/src/mame/audio/mw8080bw.c
@@ -0,0 +1,4064 @@
+/***************************************************************************
+
+ Midway 8080-based black and white hardware
+
+****************************************************************************/
+
+#include "driver.h"
+#include "mw8080bw.h"
+#include "sound/samples.h"
+#include "sound/sn76477.h"
+#include "sound/discrete.h"
+
+
+
+/*************************************
+ *
+ * Globals
+ *
+ *************************************/
+
+static UINT8 port_1_last;
+static UINT8 port_2_last;
+
+
+
+/*************************************
+ *
+ * Audio setup
+ *
+ *************************************/
+
+static SOUND_START( samples )
+{
+ /* setup for save states */
+ state_save_register_global(port_1_last);
+ state_save_register_global(port_2_last);
+}
+
+
+
+/*************************************
+ *
+ * Implementation of tone generator used
+ * by a few of these games
+ *
+ *************************************/
+
+#define MIDWAY_TONE_EN NODE_100
+#define MIDWAY_TONE_DATA_L NODE_101
+#define MIDWAY_TONE_DATA_H NODE_102
+#define MIDWAY_TONE_SND NODE_103
+#define MIDWAY_TONE_TRASFORM_OUT NODE_104
+#define MIDWAY_TONE_BEFORE_AMP_SND NODE_105
+
+
+#define MIDWAY_TONE_GENERATOR(discrete_op_amp_tvca_info) \
+ /* bit 0 of tone data is always 0 */ \
+ /* join the L & H tone bits */ \
+ DISCRETE_INPUT_LOGIC(MIDWAY_TONE_EN) \
+ DISCRETE_INPUT_DATA (MIDWAY_TONE_DATA_L) \
+ DISCRETE_INPUT_DATA (MIDWAY_TONE_DATA_H) \
+ DISCRETE_TRANSFORM4(MIDWAY_TONE_TRASFORM_OUT, 1, MIDWAY_TONE_DATA_H, 0x40, MIDWAY_TONE_DATA_L, 0x02, "01*23*+") \
+ DISCRETE_NOTE(MIDWAY_TONE_BEFORE_AMP_SND, 1, (double)MW8080BW_MASTER_CLOCK/10/2, MIDWAY_TONE_TRASFORM_OUT, 0xfff, 1, DISC_CLK_IS_FREQ) \
+ DISCRETE_OP_AMP_TRIG_VCA(MIDWAY_TONE_SND, MIDWAY_TONE_BEFORE_AMP_SND, MIDWAY_TONE_EN, 0, 12, 0, &discrete_op_amp_tvca_info)
+
+
+WRITE8_HANDLER( midway_tone_generator_lo_w )
+{
+ discrete_sound_w(MIDWAY_TONE_EN, (data >> 0) & 0x01);
+
+ discrete_sound_w(MIDWAY_TONE_DATA_L, (data >> 1) & 0x1f);
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( midway_tone_generator_hi_w )
+{
+ discrete_sound_w(MIDWAY_TONE_DATA_H, data & 0x3f);
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Implementation of the common
+ * noise circuits
+ *
+ *************************************/
+
+static const discrete_lfsr_desc midway_lfsr =
+{
+ DISC_CLK_IS_FREQ,
+ 17, /* bit length */
+ /* the RC network fed into pin 4, has the effect
+ of presetting all bits high at power up */
+ 0x1ffff, /* reset value */
+ 4, /* use bit 4 as XOR input 0 */
+ 16, /* use bit 16 as XOR input 1 */
+ DISC_LFSR_XOR, /* feedback stage1 is XOR */
+ DISC_LFSR_OR, /* feedback stage2 is just stage 1 output OR with external feed */
+ DISC_LFSR_REPLACE, /* feedback stage3 replaces the shifted register contents */
+ 0x000001, /* everything is shifted into the first bit only */
+ 0, /* output is not inverted */
+ 12 /* output bit */
+};
+
+
+
+/*************************************
+ *
+ * Sea Wolf
+ *
+ *************************************/
+
+static const char *seawolf_sample_names[] =
+{
+ "*seawolf",
+ "shiphit.wav",
+ "torpedo.wav",
+ "dive.wav",
+ "sonar.wav",
+ "minehit.wav",
+ 0
+};
+
+
+static struct Samplesinterface seawolf_samples_interface =
+{
+ 5, /* 5 channels */
+ seawolf_sample_names
+};
+
+
+MACHINE_DRIVER_START( seawolf_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(seawolf_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.6)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( seawolf_audio_w )
+{
+ UINT8 rising_bits = data & ~port_1_last;
+
+ /* if (data & 0x01) enable SHIP HIT sound */
+ if (rising_bits & 0x01) sample_start_n(0, 0, 0, 0);
+
+ /* if (data & 0x02) enable TORPEDO sound */
+ if (rising_bits & 0x02) sample_start_n(0, 1, 1, 0);
+
+ /* if (data & 0x04) enable DIVE sound */
+ if (rising_bits & 0x04) sample_start_n(0, 2, 2, 0);
+
+ /* if (data & 0x08) enable SONAR sound */
+ if (rising_bits & 0x08) sample_start_n(0, 3, 3, 0);
+
+ /* if (data & 0x10) enable MINE HIT sound */
+ if (rising_bits & 0x10) sample_start_n(0, 4, 4, 0);
+
+ coin_counter_w(0, (data >> 5) & 0x01);
+
+ /* D6 and D7 are not connected */
+
+ port_1_last = data;
+}
+
+
+
+/*************************************
+ *
+ * Gun Fight
+ *
+ *************************************/
+
+static const char *gunfight_sample_names[] =
+{
+ "*gunfight",
+ "gunshot.wav",
+ "killed.wav",
+ 0
+};
+
+
+static struct Samplesinterface gunfight_samples_interface =
+{
+ 1, /* 1 channel */
+ gunfight_sample_names
+};
+
+
+MACHINE_DRIVER_START( gunfight_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_STEREO("left", "right")
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(gunfight_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 0.50)
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(gunfight_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.50)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( gunfight_audio_w )
+{
+ /* D0 and D1 are just tied to 1k resistors */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ /* the 74175 latches and inverts the top 4 bits */
+ switch ((~data >> 4) & 0x0f)
+ {
+ case 0x00:
+ break;
+
+ case 0x01:
+ /* enable LEFT SHOOT sound (left speaker) */
+ sample_start_n(0, 0, 0, 0);
+ break;
+
+ case 0x02:
+ /* enable RIGHT SHOOT sound (right speaker) */
+ sample_start_n(1, 0, 0, 0);
+ break;
+
+ case 0x03:
+ /* enable LEFT HIT sound (left speaker) */
+ sample_start_n(0, 0, 1, 0);
+ break;
+
+ case 0x04:
+ /* enable RIGHT HIT sound (right speaker) */
+ sample_start_n(1, 0, 1, 0);
+ break;
+
+ default:
+ logerror("%04x: Unknown sh port write %02x\n",activecpu_get_pc(),data);
+ break;
+ }
+}
+
+
+
+/*************************************
+ *
+ * Tornado Baseball
+ *
+ *************************************/
+
+#define TORNBASE_SQUAREW_240 NODE_01
+#define TORNBASE_SQUAREW_960 NODE_02
+#define TORNBASE_SQUAREW_120 NODE_03
+
+#define TORNBASE_TONE_240_EN NODE_04
+#define TORNBASE_TONE_960_EN NODE_05
+#define TORNBASE_TONE_120_EN NODE_06
+
+#define TORNBASE_TONE_240_SND NODE_07
+#define TORNBASE_TONE_960_SND NODE_08
+#define TORNBASE_TONE_120_SND NODE_09
+#define TORNBASE_TONE_SND NODE_10
+#define TORNBASE_TONE_SND_FILT NODE_11
+
+
+static DISCRETE_SOUND_START(tornbase)
+
+ /* the 3 enable lines coming out of the 74175 flip-flop at G5 */
+ DISCRETE_INPUT_LOGIC(TORNBASE_TONE_240_EN) /* pin 2 */
+ DISCRETE_INPUT_LOGIC(TORNBASE_TONE_960_EN) /* pin 7 */
+ DISCRETE_INPUT_LOGIC(TORNBASE_TONE_120_EN) /* pin 5 */
+
+ /* 3 different freq square waves (240, 960 and 120Hz).
+ Originates from the CPU board via an edge connector.
+ The wave is in the 0/+1 range */
+ DISCRETE_SQUAREWFIX(TORNBASE_SQUAREW_240, 1, 240, 1.0, 50.0, 1.0/2, 0) /* pin X */
+ DISCRETE_SQUAREWFIX(TORNBASE_SQUAREW_960, 1, 960, 1.0, 50.0, 1.0/2, 0) /* pin Y */
+ DISCRETE_SQUAREWFIX(TORNBASE_SQUAREW_120, 1, 120, 1.0, 50.0, 1.0/2, 0) /* pin V */
+
+ /* 7403 O/C NAND gate at G6. 3 of the 4 gates used with their outputs tied together */
+ DISCRETE_LOGIC_NAND(TORNBASE_TONE_240_SND, 1, TORNBASE_SQUAREW_240, TORNBASE_TONE_240_EN) /* pins 4,5,6 */
+ DISCRETE_LOGIC_NAND(TORNBASE_TONE_960_SND, 1, TORNBASE_SQUAREW_960, TORNBASE_TONE_960_EN) /* pins 2,1,3 */
+ DISCRETE_LOGIC_NAND(TORNBASE_TONE_120_SND, 1, TORNBASE_SQUAREW_120, TORNBASE_TONE_120_EN) /* pins 13,12,11 */
+ DISCRETE_LOGIC_AND3(TORNBASE_TONE_SND, 1, TORNBASE_TONE_240_SND, TORNBASE_TONE_960_SND, TORNBASE_TONE_120_SND)
+
+ /* 47K resistor (R601) and 0.047uF capacitor (C601)
+ There is also a 50K pot acting as a volume control, but we output at
+ the maximum volume as MAME has its own volume adjustment */
+ DISCRETE_CRFILTER(TORNBASE_TONE_SND_FILT, 1, TORNBASE_TONE_SND, RES_K(47), CAP_U(0.047))
+
+ /* amplify for output */
+ DISCRETE_OUTPUT(TORNBASE_TONE_SND_FILT, 32767)
+
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( tornbase_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(tornbase)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( tornbase_audio_w )
+{
+ discrete_sound_w(TORNBASE_TONE_240_EN, (data >> 0) & 0x01);
+
+ discrete_sound_w(TORNBASE_TONE_960_EN, (data >> 1) & 0x01);
+
+ discrete_sound_w(TORNBASE_TONE_120_EN, (data >> 2) & 0x01);
+
+ /* if (data & 0x08) enable SIREN sound */
+
+ /* if (data & 0x10) enable CHEER sound */
+
+ if (tornbase_get_cabinet_type() == TORNBASE_CAB_TYPE_UPRIGHT_OLD)
+ {
+ /* if (data & 0x20) enable WHISTLE sound */
+
+ /* D6 is not connected on this cabinet type */
+ }
+ else
+ {
+ /* D5 is not connected on this cabinet type */
+
+ /* if (data & 0x40) enable WHISTLE sound */
+ }
+
+ coin_counter_w(0, (data >> 7) & 0x01);
+}
+
+
+
+/*************************************
+ *
+ * 280 ZZZAP / Laguna Racer
+ *
+ *************************************/
+
+MACHINE_DRIVER_START( zzzap_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( zzzap_audio_1_w )
+{
+ /* set ENGINE SOUND FREQ(data & 0x0f) the value written is
+ the gas pedal position */
+
+ /* if (data & 0x10) enable HI SHIFT engine sound modifier */
+
+ /* if (data & 0x20) enable LO SHIFT engine sound modifier */
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( zzzap_audio_2_w )
+{
+ /* if (data & 0x01) enable BOOM sound */
+
+ /* if (data & 0x02) enable ENGINE sound (global) */
+
+ /* if (data & 0x04) enable CR 1 (screeching sound) */
+
+ /* if (data & 0x08) enable NOISE CR 2 (happens only after the car blows up, but
+ before it appears again, not sure what
+ it is supposed to sound like) */
+
+ coin_counter_w(0, (data >> 5) & 0x01);
+
+ /* D4, D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Amazing Maze
+ *
+ * Discrete sound emulation: Feb 2007, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define MAZE_P1_DATA NODE_01
+#define MAZE_P2_DATA NODE_02
+#define MAZE_TONE_TIMING NODE_03
+#define MAZE_COIN NODE_04
+
+/* nodes - other */
+#define MAZE_JOYSTICK_IN_USE NODE_11
+#define MAZE_AUDIO_ENABLE NODE_12
+#define MAZE_TONE_ENABLE NODE_13
+#define MAZE_GAME_OVER NODE_14
+#define MAZE_R305_306_308 NODE_15
+#define MAZE_R303_309 NODE_16
+#define MAZE_PLAYER_SEL NODE_17
+
+/* nodes - sounds */
+#define MAZE_SND NODE_18
+
+
+static const discrete_555_desc maze_555_F2 =
+{
+ DISC_555_OUT_SQW | DISC_555_OUT_DC | DISC_555_TRIGGER_IS_LOGIC | DISC_555_TRIGGER_DISCHARGES_CAP,
+ 5, /* B+ voltage of 555 */
+ DEFAULT_555_VALUES
+};
+
+
+static const double maze_74147_table[] =
+{
+ 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 1, 1, 2, 3
+};
+
+
+static const discrete_comp_adder_table maze_r305_306_308 =
+{
+ DISC_COMP_P_RESISTOR, /* type of circuit */
+ RES_K(100), /* R308 */
+ 2, /* length */
+ { RES_M(1.5), /* R304 */
+ RES_K(820) } /* R304 */
+};
+
+
+static const discrete_comp_adder_table maze_r303_309 =
+{
+ DISC_COMP_P_RESISTOR, /* type of circuit */
+ RES_K(330), /* R309 */
+ 1, /* length */
+ { RES_M(1) } /* R303 */
+};
+
+
+static const discrete_op_amp_osc_info maze_op_amp_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW, /* type */
+ RES_M(1), /* R306 */
+ RES_K(430), /* R307 */
+ MAZE_R305_306_308, /* R304, R305, R308 switchable circuit */
+ MAZE_R303_309, /* R303, R309 switchable circuit */
+ RES_K(330), /* R310 */
+ 0, 0, 0, /* not used */
+ CAP_P(3300), /* C300 */
+ 5 /* vP */
+};
+
+
+static DISCRETE_SOUND_START(maze)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_DATA (MAZE_P1_DATA)
+ DISCRETE_INPUT_DATA (MAZE_P2_DATA)
+ DISCRETE_INPUT_LOGIC(MAZE_TONE_TIMING)
+ DISCRETE_INPUT_LOGIC(MAZE_COIN)
+ DISCRETE_INPUT_LOGIC(MAZE_JOYSTICK_IN_USE) /* IC D2, pin 8 */
+
+ /* The following circuits control when audio is heard. */
+ /* Basically there is sound for 30s after a coin is inserted. */
+ /* This time is extended whenever a control is pressed. */
+ /* After the 30s has expired, there is no sound until the next coin is inserted. */
+ /* There is also sound for the first 30s after power up even without a coin. */
+ DISCRETE_LOGIC_INVERT(NODE_20, /* IC E2, pin 8 */
+ 1, /* ENAB */
+ MAZE_JOYSTICK_IN_USE) /* IN0 */
+ DISCRETE_555_MSTABLE(MAZE_GAME_OVER, /* IC F2, pin 3 */
+ 1, /* RESET */
+ NODE_20, /* TRIG */
+ RES_K(270), /* R203 */
+ CAP_U(100), /* C204 */
+ &maze_555_F2)
+ DISCRETE_LOGIC_JKFLIPFLOP(MAZE_AUDIO_ENABLE,/* IC F1, pin 5 */
+ 1, /* ENAB */
+ MAZE_COIN, /* RESET */
+ 1, /* SET */
+ MAZE_GAME_OVER, /* CLK */
+ 1, /* J */
+ 0) /* K */
+ DISCRETE_LOGIC_INVERT(MAZE_TONE_ENABLE, /* IC F1, pin 6 */
+ 1, /* ENAB */
+ MAZE_AUDIO_ENABLE) /* IN0 */
+ DISCRETE_LOGIC_AND3(NODE_21,
+ 1, /* ENAB */
+ MAZE_JOYSTICK_IN_USE, /* INP0 */
+ MAZE_TONE_ENABLE, /* INP1 */
+ MAZE_TONE_TIMING) /* INP2 */
+
+ /* The following circuits use the control info to generate a tone. */
+ DISCRETE_LOGIC_JKFLIPFLOP(MAZE_PLAYER_SEL, /* IC C1, pin 3 */
+ 1, /* ENAB */
+ 1, /* RESET */
+ 1, /* SET */
+ MAZE_TONE_TIMING, /* CLK */
+ 1, /* J */
+ 1) /* K */
+ DISCRETE_MULTIPLEX2(NODE_31, /* IC D1 */
+ 1, /* ENAB */
+ MAZE_PLAYER_SEL, /* ADDR */
+ MAZE_P1_DATA, /* INP0 */
+ MAZE_P2_DATA) /* INP1 */
+ DISCRETE_LOOKUP_TABLE(NODE_32, /* IC E1 */
+ 1, /* ENAB */
+ NODE_31, /* ADDR */
+ 16, /* SIZE */
+ &maze_74147_table)
+ DISCRETE_COMP_ADDER(MAZE_R305_306_308, /* value of selected parallel circuit R305, R306, R308 */
+ 1, /* ENAB */
+ NODE_32, /* DATA */
+ &maze_r305_306_308)
+ DISCRETE_COMP_ADDER(MAZE_R303_309, /* value of selected parallel circuit R303, R309 */
+ 1, /* ENAB */
+ MAZE_PLAYER_SEL, /* DATA */
+ &maze_r303_309)
+ DISCRETE_OP_AMP_OSCILLATOR(NODE_36, /* IC J1, pin 4 */
+ 1, /* ENAB */
+ &maze_op_amp_osc)
+
+ /* The following circuits remove DC poping noises when the tone is switched in/out. */
+ DISCRETE_CRFILTER_VREF(NODE_40,
+ 1, /* ENAB */
+ NODE_36, /* IN0 */
+ RES_K(250), /* R311, R312, R402, R403 in parallel */
+ CAP_U(0.1), /* c301 */
+ 2.5) /* center voltage of R311, R312 */
+ DISCRETE_SWITCH(NODE_41, /* IC H3, pin 10 */
+ 1, /* ENAB */
+ NODE_21, /* switch */
+ 2.5, /* INP0 - center voltage of R402, R403 */
+ NODE_40) /* INP1 */
+ DISCRETE_CRFILTER(NODE_42,
+ 1, /* ENAB */
+ NODE_41, /* IN0 */
+ RES_K(56 + 390), /* R404 + R405 */
+ CAP_P(0.01) ) /* C401 */
+ DISCRETE_RCFILTER(NODE_43,
+ 1, /* ENAB */
+ NODE_42, /* IN0 */
+ RES_K(56), /* R404 */
+ CAP_P(4700) ) /* C400 */
+ DISCRETE_SWITCH(MAZE_SND, /* H3 saturates op-amp J3 when enabled, disabling audio */
+ 1, /* ENAB */
+ MAZE_AUDIO_ENABLE, /* SWITCH */
+ NODE_43, /* INP0 */
+ 0) /* INP1 */
+
+ DISCRETE_OUTPUT(MAZE_SND, 96200)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( maze_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(maze)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_DRIVER_END
+
+
+void maze_write_discrete(UINT8 maze_tone_timing_state)
+{
+ /* controls need to be active low */
+ int controls = ~readinputport(0) & 0xff;
+
+ discrete_sound_w(MAZE_TONE_TIMING, maze_tone_timing_state);
+ discrete_sound_w(MAZE_P1_DATA, controls & 0x0f);
+ discrete_sound_w(MAZE_P2_DATA, (controls >> 4) & 0x0f);
+ discrete_sound_w(MAZE_JOYSTICK_IN_USE, controls != 0xff);
+
+ /* The coin line is connected directly to the discrete circuit. */
+ /* We can't really do that, so updating it with the tone timing is close enough. */
+ /* A better option might be to update it at vblank or set a timer to do it. */
+ /* The only noticeable difference doing it here, is that the controls don't */
+ /* imediately start making tones if pressed right after the coin is inserted. */
+ discrete_sound_w(MAZE_COIN, (~readinputport(1) >> 3) & 0x01);
+}
+
+
+
+/*************************************
+ *
+ * Boot Hill
+ *
+ * Discrete sound emulation: Jan 2007, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define BOOTHILL_GAME_ON_EN NODE_01
+#define BOOTHILL_LEFT_SHOT_EN NODE_02
+#define BOOTHILL_RIGHT_SHOT_EN NODE_03
+#define BOOTHILL_LEFT_HIT_EN NODE_04
+#define BOOTHILL_RIGHT_HIT_EN NODE_05
+
+/* nodes - sounds */
+#define BOOTHILL_NOISE NODE_06
+#define BOOTHILL_L_SHOT_SND NODE_07
+#define BOOTHILL_R_SHOT_SND NODE_08
+#define BOOTHILL_L_HIT_SND NODE_09
+#define BOOTHILL_R_HIT_SND NODE_10
+
+/* nodes - adjusters */
+#define BOOTHILL_MUSIC_ADJ NODE_11
+
+
+static const discrete_op_amp_tvca_info boothill_tone_tvca_info =
+{
+ RES_M(3.3),
+ RES_K(100) + RES_K(680),
+ 0,
+ RES_K(680),
+ RES_K(10),
+ 0,
+ RES_K(680),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(.001),
+ 0,
+ 0,
+ 12,
+ 0,
+ 0,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_tvca_info boothill_shot_tvca_info =
+{
+ RES_M(2.7),
+ RES_K(510),
+ 0,
+ RES_K(510),
+ RES_K(10),
+ 0,
+ RES_K(510),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(0.22),
+ 0,
+ 0,
+ 12,
+ 0,
+ 0,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_tvca_info boothill_hit_tvca_info =
+{
+ RES_M(2.7),
+ RES_K(510),
+ 0,
+ RES_K(510),
+ RES_K(10),
+ 0,
+ RES_K(510),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(1),
+ 0,
+ 0,
+ 12,
+ 0,
+ 0,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_mixer_desc boothill_l_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(12) + RES_K(68) + RES_K(33),
+ RES_K(12) + RES_K(100) + RES_K(33) },
+ { 0 },
+ { 0 },
+ 0,
+ RES_K(100),
+ 0,
+ CAP_U(0.1),
+ 0,
+ 7200 /* final gain */
+};
+
+
+static const discrete_mixer_desc boothill_r_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(12) + RES_K(68) + RES_K(33),
+ RES_K(12) + RES_K(100) + RES_K(33),
+ RES_K(33) },
+ { 0,
+ 0,
+ BOOTHILL_MUSIC_ADJ },
+ { 0 },
+ 0,
+ RES_K(100),
+ 0,
+ CAP_U(0.1),
+ 0,
+ 7200 /* final gain */
+};
+
+
+static DISCRETE_SOUND_START(boothill)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(BOOTHILL_GAME_ON_EN)
+ DISCRETE_INPUT_LOGIC(BOOTHILL_LEFT_SHOT_EN)
+ DISCRETE_INPUT_LOGIC(BOOTHILL_RIGHT_SHOT_EN)
+ DISCRETE_INPUT_LOGIC(BOOTHILL_LEFT_HIT_EN)
+ DISCRETE_INPUT_LOGIC(BOOTHILL_RIGHT_HIT_EN)
+
+ /* The low value of the pot is set to 75000. A real 1M pot will never go to 0 anyways.
+ This will give the control more apparent volume range.
+ The music way overpowers the rest of the sounds anyways. */
+ DISCRETE_ADJUSTMENT_TAG(BOOTHILL_MUSIC_ADJ, 1, RES_M(1), 75000, DISC_LOGADJ, "MUSIC_ADJ")
+
+ /************************************************
+ * Tone generator
+ ************************************************/
+ MIDWAY_TONE_GENERATOR(boothill_tone_tvca_info)
+
+ /************************************************
+ * Shot sounds
+ ************************************************/
+ /* Noise clock was breadboarded and measured at 7700Hz */
+ DISCRETE_LFSR_NOISE(BOOTHILL_NOISE, 1, 1, 7700, 12.0, 0, 12.0/2, &midway_lfsr)
+
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_30, BOOTHILL_LEFT_SHOT_EN, 0, 0, BOOTHILL_NOISE, 0, &boothill_shot_tvca_info)
+ DISCRETE_RCFILTER(NODE_31, 1, NODE_30, RES_K(12), CAP_U(.01))
+ DISCRETE_CRFILTER(BOOTHILL_L_SHOT_SND, 1, NODE_31, RES_K(12) + RES_K(68), CAP_U(.0022))
+
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_35, BOOTHILL_RIGHT_SHOT_EN, 0, 0, BOOTHILL_NOISE, 0, &boothill_shot_tvca_info)
+ DISCRETE_RCFILTER(NODE_36, 1, NODE_35, RES_K(12), CAP_U(.01))
+ DISCRETE_CRFILTER(BOOTHILL_R_SHOT_SND, 1, NODE_36, RES_K(12) + RES_K(68), CAP_U(.0033))
+
+ /************************************************
+ * Hit sounds
+ ************************************************/
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_40, BOOTHILL_LEFT_HIT_EN, 0, 0, BOOTHILL_NOISE, 0, &boothill_hit_tvca_info)
+ DISCRETE_RCFILTER(NODE_41, 1, NODE_40, RES_K(12), CAP_U(.033))
+ DISCRETE_CRFILTER(BOOTHILL_L_HIT_SND, 1, NODE_41, RES_K(12) + RES_K(100), CAP_U(.0033))
+
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_45, BOOTHILL_RIGHT_HIT_EN, 0, 0, BOOTHILL_NOISE, 0, &boothill_hit_tvca_info)
+ DISCRETE_RCFILTER(NODE_46, 1, NODE_45, RES_K(12), CAP_U(.0033))
+ DISCRETE_CRFILTER(BOOTHILL_R_HIT_SND, 1, NODE_46, RES_K(12) + RES_K(100), CAP_U(.0022))
+
+ /************************************************
+ * Combine all sound sources.
+ ************************************************/
+ DISCRETE_MIXER2(NODE_91, BOOTHILL_GAME_ON_EN, BOOTHILL_L_SHOT_SND, BOOTHILL_L_HIT_SND, &boothill_l_mixer)
+
+ /* music is only added to the right channel */
+ DISCRETE_MIXER3(NODE_92, BOOTHILL_GAME_ON_EN, BOOTHILL_R_SHOT_SND, BOOTHILL_R_HIT_SND, MIDWAY_TONE_SND, &boothill_r_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 1)
+ DISCRETE_OUTPUT(NODE_92, 1)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( boothill_audio )
+ MDRV_SPEAKER_STANDARD_STEREO("left", "right")
+ MDRV_SOUND_ADD_TAG("discrete", DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(boothill)
+ MDRV_SOUND_ROUTE(0, "left", 1.0)
+ MDRV_SOUND_ROUTE(1, "right", 1.0)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( boothill_audio_w )
+{
+ /* D0 and D1 are not connected */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ discrete_sound_w(BOOTHILL_GAME_ON_EN, (data >> 3) & 0x01);
+
+ discrete_sound_w(BOOTHILL_LEFT_SHOT_EN, (data >> 4) & 0x01);
+
+ discrete_sound_w(BOOTHILL_RIGHT_SHOT_EN, (data >> 5) & 0x01);
+
+ discrete_sound_w(BOOTHILL_LEFT_HIT_EN, (data >> 6) & 0x01);
+
+ discrete_sound_w(BOOTHILL_RIGHT_HIT_EN, (data >> 7) & 0x01);
+}
+
+
+
+/*************************************
+ *
+ * Checkmate
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define CHECKMAT_BOOM_EN NODE_01
+#define CHECKMAT_TONE_EN NODE_02
+#define CHECKMAT_TONE_DATA_45 NODE_03
+#define CHECKMAT_TONE_DATA_67 NODE_04
+
+/* nodes - other */
+#define CHECKMAT_R401_402_400 NODE_06
+#define CHECKMAT_R407_406_410 NODE_07
+
+/* nodes - sounds */
+#define CHECKMAT_BOOM_SND NODE_10
+#define CHECKMAT_TONE_SND NODE_11
+#define CHECKMAT_FINAL_SND NODE_12
+
+/* nodes - adjusters */
+#define CHECKMAT_R309 NODE_15
+#define CHECKMAT_R411 NODE_16
+
+
+static const discrete_comp_adder_table checkmat_r401_402_400 =
+{
+ DISC_COMP_P_RESISTOR, /* type of circuit */
+ RES_K(100), /* R401 */
+ 2, /* length */
+ { RES_M(1.5), /* R402 */
+ RES_K(820) } /* R400 */
+};
+
+
+static const discrete_comp_adder_table checkmat_r407_406_410 =
+{
+ DISC_COMP_P_RESISTOR, /* type of circuit */
+ RES_K(330), /* R407 */
+ 2, /* length */
+ { RES_M(1), /* R406 */
+ RES_K(510) } /* R410 */
+};
+
+
+static const discrete_op_amp_osc_info checkmat_op_amp_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW, /* type */
+ RES_M(1), /* R403 */
+ RES_K(430), /* R405 */
+ CHECKMAT_R401_402_400, /* R401, R402, R400 switchable circuit */
+ CHECKMAT_R407_406_410, /* R407, R406, R410 switchable circuit */
+ RES_K(330), /* R404 */
+ 0, 0, 0, /* not used */
+ CAP_P(3300), /* C400 */
+ 5 /* vP */
+};
+
+
+static const discrete_op_amp_tvca_info checkmat_op_amp_tvca =
+{
+ RES_M(1.2), /* R302 */
+ RES_M(1), /* R305 */
+ 0, /* r3 - not used */
+ RES_M(1.2), /* R304 */
+ RES_K(1), /* M4 */
+ 0, /* r6 - not used */
+ RES_M(1), /* R303 */
+ 0, /* r8 - not used */
+ 0, /* r9 - not used */
+ 0, /* r10 - not used */
+ 0, /* r11 - not used */
+ CAP_U(1), /* C300 */
+ 0, /* c2 - not used */
+ 0, /* c3 - not used */
+ 5, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 5, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* f0 - not used */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* f1 - not used */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* f3 - not used */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* f4 - not used */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* f5 - not used */
+};
+
+
+static const discrete_mixer_desc checkmat_mixer =
+{
+ DISC_MIXER_IS_OP_AMP, /* type */
+ { RES_K(100), /* R308 - VERIFY - can't read schematic */
+ RES_K(56 + 47) }, /* R412 + R408 */
+ { CHECKMAT_R309, /* R309 */
+ CHECKMAT_R411}, /* R411 */
+ { CAP_U(10), /* C305 */
+ CAP_U(0.01) }, /* C401 */
+ 0, /* rI - not used */
+ RES_K(100), /* R507 */
+ 0, /* cF - not used */
+ CAP_U(1), /* C505 */
+ 0, /* vRef - GND */
+ 1 /* gain */
+};
+
+static DISCRETE_SOUND_START(checkmat)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(CHECKMAT_BOOM_EN)
+ DISCRETE_INPUT_LOGIC(CHECKMAT_TONE_EN)
+ DISCRETE_INPUT_DATA (CHECKMAT_TONE_DATA_45)
+ DISCRETE_INPUT_DATA (CHECKMAT_TONE_DATA_67)
+
+ /* The low value of the resistors are tweaked to give a good volume range. */
+ /* This is needed because the original controls are infinite, but the UI only gives 100 steps. */
+ /* Also real variable resistors never hit 0 ohms. There is always some resistance. */
+ /* R309 mostly just increases the Boom clipping, making it sound bassier. */
+ DISCRETE_ADJUSTMENT_TAG(CHECKMAT_R309, 1, RES_K(100), 1000, DISC_LOGADJ, "R309")
+ DISCRETE_ADJUSTMENT_TAG(CHECKMAT_R411, 1, RES_M(1), 1000, DISC_LOGADJ, "R411")
+
+ /************************************************
+ * Boom Sound
+ *
+ * The zener diode noise source is hard to
+ * emulate. Guess for now.
+ ************************************************/
+ /* FIX - find noise freq and amplitude */
+ DISCRETE_NOISE(NODE_20,
+ 1, /* ENAB */
+ 1500, /* FREQ */
+ 2, /* AMP */
+ 0) /* BIAS */
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_21,
+ CHECKMAT_BOOM_EN, /* TRG0 */
+ 0, /* TRG1 - not used */
+ 0, /* TRG2 - not used */
+ NODE_20, /* IN0 */
+ 0, /* IN1 - not used */
+ &checkmat_op_amp_tvca)
+ /* The next 5 modules emulate the filter. */
+ DISCRETE_FILTER2(NODE_23,
+ 1, /* ENAB */
+ NODE_21, /* INP0 */
+ 35, /* FREQ */
+ 1.0 / 8, /* DAMP */
+ DISC_FILTER_BANDPASS)
+ DISCRETE_GAIN(NODE_24,
+ NODE_23, /* IN0 */
+ 15) /* GAIN */
+ DISCRETE_CLAMP(CHECKMAT_BOOM_SND, /* IC Q2/3, pin 10 */
+ 1, /* ENAB */
+ NODE_24, /* IN0 */
+ 0 - 6, /* MIN */
+ 12.0 - OP_AMP_NORTON_VBE -6,/* MAX */
+ 0) /* CLAMP */
+
+ /************************************************
+ * Tone generator
+ ************************************************/
+ DISCRETE_COMP_ADDER(CHECKMAT_R401_402_400, /* value of selected parallel circuit R401, R402, R400 */
+ 1, /* ENAB */
+ CHECKMAT_TONE_DATA_45, /* DATA */
+ &checkmat_r401_402_400)
+ DISCRETE_COMP_ADDER(CHECKMAT_R407_406_410, /* value of selected parallel circuit R407, R406, R410 */
+ 1, /* ENAB */
+ CHECKMAT_TONE_DATA_67, /* DATA */
+ &checkmat_r407_406_410)
+ DISCRETE_OP_AMP_OSCILLATOR(NODE_30, /* IC N3/4, pin 4 */
+ 1, /* ENAB */
+ &checkmat_op_amp_osc)
+
+ /* The following circuits remove DC poping noises when the tone is switched in/out. */
+ DISCRETE_CRFILTER_VREF(NODE_31,
+ 1, /* ENAB */
+ NODE_30, /* IN0 */
+ RES_K(250), /* R409, R415, R414, R413 in parallel */
+ CAP_U(0.1), /* c401 */
+ 2.5) /* center voltage of R409, R415 */
+ DISCRETE_SWITCH(NODE_32, /* IC R3/4, pin 9 */
+ 1, /* ENAB */
+ CHECKMAT_TONE_EN, /* switch */
+ 2.5, /* INP0 - center voltage of R413, R414 */
+ NODE_31) /* INP1 */
+ DISCRETE_CRFILTER(NODE_33,
+ 1, /* ENAB */
+ NODE_32, /* IN0 */
+ RES_K(56 + 47 + 200), /* R412 + R408 + part of R411 */
+ CAP_P(0.01) ) /* C404 */
+ DISCRETE_RCFILTER(CHECKMAT_TONE_SND,
+ 1, /* ENAB */
+ NODE_33, /* IN0 */
+ RES_K(56), /* R412 */
+ CAP_P(4700) ) /* C403 */
+
+ /************************************************
+ * Final mix and output
+ ************************************************/
+ DISCRETE_MIXER2(CHECKMAT_FINAL_SND,
+ 1, /* ENAB */
+ CHECKMAT_BOOM_SND, /* IN0 */
+ CHECKMAT_TONE_SND, /* IN1 */
+ &checkmat_mixer)
+ DISCRETE_OUTPUT(CHECKMAT_FINAL_SND, 300000)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( checkmat_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(checkmat)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( checkmat_audio_w )
+{
+ discrete_sound_w(CHECKMAT_TONE_EN, data & 0x01);
+
+ discrete_sound_w(CHECKMAT_BOOM_EN, (data >> 1) & 0x01);
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ sound_global_enable((data >> 3) & 0x01);
+
+ discrete_sound_w(CHECKMAT_TONE_DATA_45, (data >> 4) & 0x03);
+ discrete_sound_w(CHECKMAT_TONE_DATA_67, (data >> 6) & 0x03);
+}
+
+
+
+/*************************************
+ *
+ * Desert Gun
+ *
+ * Discrete sound emulation: Jan 2007, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define DESERTGU_GAME_ON_EN NODE_01
+#define DESERTGU_RIFLE_SHOT_EN NODE_02
+#define DESERTGU_BOTTLE_HIT_EN NODE_03
+#define DESERTGU_ROAD_RUNNER_HIT_EN NODE_04
+#define DESERTGU_CREATURE_HIT_EN NODE_05
+#define DESERTGU_ROADRUNNER_BEEP_BEEP_EN NODE_06
+#define DESERTGU_TRIGGER_CLICK_EN NODE_07
+
+/* nodes - sounds */
+#define DESERTGU_NOISE NODE_08
+#define DESERTGU_RIFLE_SHOT_SND NODE_09
+#define DESERTGU_BOTTLE_HIT_SND NODE_10
+#define DESERTGU_ROAD_RUNNER_HIT_SND NODE_11
+#define DESERTGU_CREATURE_HIT_SND NODE_12
+#define DESERTGU_ROADRUNNER_BEEP_BEEP_SND NODE_13
+#define DESERTGU_TRIGGER_CLICK_SND DESERTGU_TRIGGER_CLICK_EN
+
+/* nodes - adjusters */
+#define DESERTGU_MUSIC_ADJ NODE_15
+
+
+static const discrete_op_amp_tvca_info desertgu_tone_music_info =
+{
+ RES_M(3.3), /* r502 */
+ RES_K(10) + RES_K(680), /* r505 + r506 */
+ 0,
+ RES_K(680), /* r503 */
+ RES_K(10), /* r500 */
+ 0,
+ RES_K(680), /* r501 */
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(.001), /* c500 */
+ 0, 0,
+ 12, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_tvca_info desertgu_rifle_shot_tvca_info =
+{
+ RES_M(2.7),
+ RES_K(680),
+ 0,
+ RES_K(680),
+ RES_K(10),
+ 0,
+ RES_K(680),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(0.47),
+ 0,
+ 0,
+ 12, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_mixer_desc desertgu_filter_mixer =
+{
+ DISC_MIXER_IS_RESISTOR,
+ { RES_K(2),
+ RES_K(27),
+ RES_K(2) + RES_K(1) },
+ { 0 },
+ { 0 },
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 1
+};
+
+
+static const discrete_op_amp_filt_info desertgu_filter =
+{
+ 1.0 / ( 1.0 / RES_K(2) + 1.0 / RES_K(27) + 1.0 / (RES_K(2) + RES_K(1))),
+ 0,
+ 68,
+ 0,
+ RES_K(39),
+ CAP_U(0.033),
+ CAP_U(0.033),
+ 0,
+ 0,
+ 12,
+ 0
+};
+
+
+static const discrete_mixer_desc desertgu_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(12) + RES_K(68) + RES_K(30),
+ RES_K(56),
+ RES_K(180),
+ RES_K(47),
+ RES_K(30) },
+ { 0,
+ 0,
+ 0,
+ 0,
+ DESERTGU_MUSIC_ADJ },
+ { CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1) },
+ 0,
+ RES_K(100),
+ 0,
+ CAP_U(0.1),
+ 0,
+ 6000 /* final gain */
+};
+
+
+static DISCRETE_SOUND_START(desertgu)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(DESERTGU_GAME_ON_EN)
+ DISCRETE_INPUT_LOGIC(DESERTGU_RIFLE_SHOT_EN)
+ DISCRETE_INPUT_LOGIC(DESERTGU_BOTTLE_HIT_EN)
+ DISCRETE_INPUT_LOGIC(DESERTGU_ROAD_RUNNER_HIT_EN)
+ DISCRETE_INPUT_LOGIC(DESERTGU_CREATURE_HIT_EN)
+ DISCRETE_INPUT_LOGIC(DESERTGU_ROADRUNNER_BEEP_BEEP_EN)
+ DISCRETE_INPUTX_LOGIC(DESERTGU_TRIGGER_CLICK_SND, 12, 0, 0)
+
+ /* The low value of the pot is set to 75000. A real 1M pot will never go to 0 anyways. */
+ /* This will give the control more apparent volume range. */
+ /* The music way overpowers the rest of the sounds anyways. */
+ DISCRETE_ADJUSTMENT_TAG(DESERTGU_MUSIC_ADJ, 1, RES_M(1), 75000, DISC_LOGADJ, "MUSIC_ADJ")
+
+ /************************************************
+ * Tone generator
+ ************************************************/
+ MIDWAY_TONE_GENERATOR(desertgu_tone_music_info)
+
+ /************************************************
+ * Rifle shot sound
+ ************************************************/
+ /* Noise clock was breadboarded and measured at 7515Hz */
+ DISCRETE_LFSR_NOISE(DESERTGU_NOISE, 1, 1, 7515, 12.0, 0, 12.0/2, &midway_lfsr)
+
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_30, DESERTGU_RIFLE_SHOT_EN, 0, 0, DESERTGU_NOISE, 0, &desertgu_rifle_shot_tvca_info)
+ DISCRETE_RCFILTER(NODE_31, 1, NODE_30, RES_K(12), CAP_U(.01))
+ DISCRETE_CRFILTER(DESERTGU_RIFLE_SHOT_SND, 1, NODE_31, RES_K(12) + RES_K(68), CAP_U(.0022))
+
+ /************************************************
+ * Bottle hit sound
+ ************************************************/
+ DISCRETE_CONSTANT(DESERTGU_BOTTLE_HIT_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Road Runner hit sound
+ ************************************************/
+ DISCRETE_CONSTANT(DESERTGU_ROAD_RUNNER_HIT_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Creature hit sound
+ ************************************************/
+ DISCRETE_CONSTANT(DESERTGU_CREATURE_HIT_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Beep-Beep sound
+ ************************************************/
+ DISCRETE_CONSTANT(DESERTGU_ROADRUNNER_BEEP_BEEP_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Mix and filter
+ ************************************************/
+ DISCRETE_MIXER3(NODE_80, 1, DESERTGU_BOTTLE_HIT_SND, DESERTGU_ROADRUNNER_BEEP_BEEP_SND, DESERTGU_TRIGGER_CLICK_SND, &desertgu_filter_mixer)
+ DISCRETE_OP_AMP_FILTER(NODE_81, 1, NODE_80, 0, DISC_OP_AMP_FILTER_IS_BAND_PASS_1, &desertgu_filter)
+
+ /************************************************
+ * Combine all sound sources.
+ ************************************************/
+ DISCRETE_MIXER5(NODE_91, DESERTGU_GAME_ON_EN, DESERTGU_RIFLE_SHOT_SND, DESERTGU_ROAD_RUNNER_HIT_SND, DESERTGU_CREATURE_HIT_SND, NODE_81, MIDWAY_TONE_SND, &desertgu_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 1)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( desertgu_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD_TAG("discrete", DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(desertgu)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.8)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( desertgu_audio_1_w )
+{
+ /* D0 and D1 are not connected */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ discrete_sound_w(DESERTGU_GAME_ON_EN, (data >> 3) & 0x01);
+
+ discrete_sound_w(DESERTGU_RIFLE_SHOT_EN, (data >> 4) & 0x01);
+
+ discrete_sound_w(DESERTGU_BOTTLE_HIT_EN, (data >> 5) & 0x01);
+
+ discrete_sound_w(DESERTGU_ROAD_RUNNER_HIT_EN, (data >> 6) & 0x01);
+
+ discrete_sound_w(DESERTGU_CREATURE_HIT_EN, (data >> 7) & 0x01);
+}
+
+
+WRITE8_HANDLER( desertgu_audio_2_w )
+{
+ discrete_sound_w(DESERTGU_ROADRUNNER_BEEP_BEEP_EN, (data >> 0) & 0x01);
+
+ discrete_sound_w(DESERTGU_TRIGGER_CLICK_EN, (data >> 1) & 0x01);
+
+ output_set_value("KICKER", (data >> 2) & 0x01);
+
+ desertgun_set_controller_select((data >> 3) & 0x01);
+
+ /* D4-D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Double Play / Extra Inning
+ *
+ * Discrete sound emulation: Jan 2007, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define DPLAY_GAME_ON_EN NODE_01
+#define DPLAY_TONE_ON_EN NODE_02
+#define DPLAY_SIREN_EN NODE_03
+#define DPLAY_WHISTLE_EN NODE_04
+#define DPLAY_CHEER_EN NODE_05
+
+/* nodes - sounds */
+#define DPLAY_NOISE NODE_06
+#define DPLAY_TONE_SND NODE_07
+#define DPLAY_SIREN_SND NODE_08
+#define DPLAY_WHISTLE_SND NODE_09
+#define DPLAY_CHEER_SND NODE_10
+
+/* nodes - adjusters */
+#define DPLAY_MUSIC_ADJ NODE_11
+
+
+static const discrete_lfsr_desc dplay_lfsr =
+{
+ DISC_CLK_IS_FREQ,
+ 17, /* bit length */
+ /* the RC network fed into pin 4, has the effect
+ of presetting all bits high at power up */
+ 0x1ffff, /* reset value */
+ 4, /* use bit 4 as XOR input 0 */
+ 16, /* use bit 16 as XOR input 1 */
+ DISC_LFSR_XOR, /* feedback stage1 is XOR */
+ DISC_LFSR_OR, /* feedback stage2 is just stage 1 output OR with external feed */
+ DISC_LFSR_REPLACE, /* feedback stage3 replaces the shifted register contents */
+ 0x000001, /* everything is shifted into the first bit only */
+ 0, /* output is not inverted */
+ 8 /* output bit */
+};
+
+
+static const discrete_op_amp_tvca_info dplay_music_tvca_info =
+{
+ RES_M(3.3),
+ RES_K(10) + RES_K(680),
+ 0,
+ RES_K(680),
+ RES_K(10),
+ 0,
+ RES_K(680),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(.001),
+ 0,
+ 0,
+ 12, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_integrate_info dplay_siren_integrate_info =
+{
+ DISC_INTEGRATE_OP_AMP_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(1),
+ RES_K(100),
+ 0,
+ CAP_U(3.3),
+ 12,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_osc_info dplay_siren_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_2 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW, /* type */
+ RES_K(390), /* r1 */
+ RES_M(5.6), /* r2 */
+ RES_M(1), /* r3 */
+ RES_M(1.5), /* r4 */
+ RES_M(3.3), /* r5 */
+ RES_K(56), /* r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.0022), /* c */
+ 12 /* vP */
+};
+
+static const discrete_integrate_info dplay_whistle_integrate_info =
+{
+ DISC_INTEGRATE_OP_AMP_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(1),
+ RES_K(220) + RES_K(10),
+ 0,
+ CAP_U(3.3),
+ 12,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_osc_info dplay_whistle_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_2 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW, /* type */
+ RES_K(510), /* r1 */
+ RES_M(5.6), /* r2 */
+ RES_M(1), /* r3 */
+ RES_M(1.5), /* r4 */
+ RES_M(3.3), /* r5 */
+ RES_K(300), /* r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_P(220), /* c */
+ 12 /* vP */
+};
+
+
+static const discrete_integrate_info dplay_cheer_integrate_info =
+{
+ DISC_INTEGRATE_OP_AMP_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(1.5),
+ RES_K(100),
+ 0,
+ CAP_U(4.7),
+ 12,
+ 12,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_filt_info dplay_cheer_filter =
+{
+ RES_K(100),
+ 0,
+ RES_K(100),
+ 0,
+ RES_K(150),
+ CAP_U(0.0047),
+ CAP_U(0.0047),
+ 0,
+ 0,
+ 12,
+ 0
+};
+
+
+static const discrete_mixer_desc dplay_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(68),
+ RES_K(68),
+ RES_K(68),
+ RES_K(18),
+ RES_K(68) },
+ { 0,
+ 0,
+ 0,
+ 0,
+ DPLAY_MUSIC_ADJ },
+ { CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1),
+ CAP_U(0.1) }
+ , 0, RES_K(100), 0, CAP_U(0.1), 0,
+ 2000 /* final gain */
+};
+
+
+static DISCRETE_SOUND_START(dplay)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC (DPLAY_GAME_ON_EN)
+ DISCRETE_INPUT_LOGIC (DPLAY_TONE_ON_EN)
+ DISCRETE_INPUTX_LOGIC(DPLAY_SIREN_EN, 5, 0, 0)
+ DISCRETE_INPUTX_LOGIC(DPLAY_WHISTLE_EN, 12, 0, 0)
+ DISCRETE_INPUTX_LOGIC(DPLAY_CHEER_EN, 5, 0, 0)
+
+ /* The low value of the pot is set to 1000. A real 1M pot will never go to 0 anyways. */
+ /* This will give the control more apparent volume range. */
+ /* The music way overpowers the rest of the sounds anyways. */
+ DISCRETE_ADJUSTMENT_TAG(DPLAY_MUSIC_ADJ, 1, RES_M(1), 1000, DISC_LOGADJ, "MUSIC_ADJ")
+
+ /************************************************
+ * Music and Tone Generator
+ ************************************************/
+ MIDWAY_TONE_GENERATOR(dplay_music_tvca_info)
+
+ DISCRETE_OP_AMP_TRIG_VCA(DPLAY_TONE_SND, MIDWAY_TONE_BEFORE_AMP_SND, DPLAY_TONE_ON_EN, 0, 12, 0, &dplay_music_tvca_info)
+
+ /************************************************
+ * Siren
+ ************************************************/
+ DISCRETE_INTEGRATE(NODE_30,
+ DPLAY_SIREN_EN, /* TRG0 */
+ 0 , /* TRG1 */
+ &dplay_siren_integrate_info)
+ DISCRETE_OP_AMP_VCO1(DPLAY_SIREN_SND,
+ 1, /* ENAB */
+ NODE_30, /* VMOD1 */
+ &dplay_siren_osc)
+
+ /************************************************
+ * Whistle
+ ************************************************/
+ DISCRETE_INTEGRATE(NODE_40,
+ DPLAY_WHISTLE_EN, /* TRG0 */
+ 0 , /* TRG1 */
+ &dplay_whistle_integrate_info)
+ DISCRETE_OP_AMP_VCO1(DPLAY_WHISTLE_SND,
+ 1, /* ENAB */
+ NODE_40, /* VMOD1 */
+ &dplay_whistle_osc)
+
+ /************************************************ * Cheer
+ ************************************************/ /* Noise clock was
+ breadboarded and measured at 7700Hz */ DISCRETE_LFSR_NOISE(DPLAY_NOISE, 1,
+ 1, 7700, 12.0, 0, 12.0/2, &dplay_lfsr)
+
+ DISCRETE_INTEGRATE(NODE_50, DPLAY_CHEER_EN, 0, &dplay_cheer_integrate_info)
+ DISCRETE_SWITCH(NODE_51, 1, DPLAY_NOISE, 0, NODE_50)
+ DISCRETE_OP_AMP_FILTER(DPLAY_CHEER_SND, 1, NODE_51, 0, DISC_OP_AMP_FILTER_IS_BAND_PASS_1M, &dplay_cheer_filter)
+
+ /************************************************
+ * Combine all sound sources.
+ ************************************************/
+ DISCRETE_MIXER5(NODE_91, DPLAY_GAME_ON_EN, DPLAY_TONE_SND, DPLAY_SIREN_SND, DPLAY_WHISTLE_SND, DPLAY_CHEER_SND, MIDWAY_TONE_SND, &dplay_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 1)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( dplay_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD_TAG("discrete", DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(dplay)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.8)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( dplay_audio_w )
+{
+ discrete_sound_w(DPLAY_TONE_ON_EN, (data >> 0) & 0x01);
+
+ discrete_sound_w(DPLAY_CHEER_EN, (data >> 1) & 0x01);
+
+ discrete_sound_w(DPLAY_SIREN_EN, (data >> 2) & 0x01);
+
+ discrete_sound_w(DPLAY_WHISTLE_EN, (data >> 3) & 0x01);
+
+ discrete_sound_w(DPLAY_GAME_ON_EN, (data >> 4) & 0x01);
+
+ coin_counter_w(0, (data >> 5) & 0x01);
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Guided Missile
+ *
+ *************************************/
+
+static const char *gmissile_sample_names[] =
+{
+ "*gmissile",
+ "1.wav", /* missle */
+ "2.wav", /* explosion */
+ 0
+};
+
+
+static struct Samplesinterface gmissile_samples_interface =
+{
+ 1, /* 1 channel */
+ gmissile_sample_names
+};
+
+
+MACHINE_DRIVER_START( gmissile_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_STEREO("left", "right")
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(gmissile_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 1.9)
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(gmissile_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 1.9)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( gmissile_audio_1_w )
+{
+ /* note that the schematics shows the left and right explosions
+ reversed (D5=R, D7=L), but the software confirms that
+ ours is right */
+
+ UINT8 rising_bits = data & ~port_1_last;
+
+ /* D0 and D1 are not connected */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ sound_global_enable((data >> 3) & 0x01);
+
+ /* if (data & 0x10) enable RIGHT MISSILE sound (goes to right speaker) */
+ if (rising_bits & 0x10) sample_start_n(1, 0, 0, 0);
+
+ /* if (data & 0x20) enable LEFT EXPLOSION sound (goes to left speaker) */
+ output_set_value("L_EXP_LIGHT", (data >> 5) & 0x01);
+ if (rising_bits & 0x20) sample_start_n(0, 0, 1, 0);
+
+ /* if (data & 0x40) enable LEFT MISSILE sound (goes to left speaker) */
+ if (rising_bits & 0x40) sample_start_n(0, 0, 0, 0);
+
+ /* if (data & 0x80) enable RIGHT EXPLOSION sound (goes to right speaker) */
+ output_set_value("R_EXP_LIGHT", (data >> 7) & 0x01);
+ if (rising_bits & 0x80) sample_start_n(1, 0, 1, 0);
+
+ port_1_last = data;
+}
+
+
+WRITE8_HANDLER( gmissile_audio_2_w )
+{
+ /* set AIRPLANE/COPTER/JET PAN(data & 0x07) */
+
+ /* set TANK PAN((data >> 3) & 0x07) */
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( gmissile_audio_3_w )
+{
+ /* if (data & 0x01) enable AIRPLANE (bi-plane) sound (goes to AIRPLANE/COPTER/JET panning circuit) */
+
+ /* if (data & 0x02) enable TANK sound (goes to TANK panning circuit) */
+
+ /* if (data & 0x04) enable COPTER sound (goes to AIRPLANE/COPTER/JET panning circuit) */
+
+ /* D3 and D4 are not connected */
+
+ /* if (data & 0x20) enable JET (3 fighter jets) sound (goes to AIRPLANE/COPTER/JET panning circuit) */
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * M-4
+ *
+ *************************************/
+
+/* Noise clock was breadboarded and measured at 3760Hz */
+
+static const char *m4_sample_names[] =
+{
+ "*m4",
+ "1.wav", /* missle */
+ "2.wav", /* explosion */
+ 0
+};
+
+
+static struct Samplesinterface m4_samples_interface =
+{
+ 2, /* 2 channels */
+ m4_sample_names
+};
+
+
+MACHINE_DRIVER_START( m4_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_STEREO("left", "right")
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(m4_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 1)
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(m4_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 1)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( m4_audio_1_w )
+{
+ UINT8 rising_bits = data & ~port_1_last;
+
+ /* D0 and D1 are not connected */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ sound_global_enable((data >> 3) & 0x01);
+
+ /* if (data & 0x10) enable LEFT PLAYER SHOT sound (goes to left speaker) */
+ if (rising_bits & 0x10) sample_start_n(0, 0, 0, 0);
+
+ /* if (data & 0x20) enable RIGHT PLAYER SHOT sound (goes to right speaker) */
+ if (rising_bits & 0x20) sample_start_n(1, 0, 0, 0);
+
+ /* if (data & 0x40) enable LEFT PLAYER EXPLOSION sound via 300K res (goes to left speaker) */
+ if (rising_bits & 0x40) sample_start_n(0, 1, 1, 0);
+
+ /* if (data & 0x80) enable RIGHT PLAYER EXPLOSION sound via 300K res (goes to right speaker) */
+ if (rising_bits & 0x80) sample_start_n(1, 1, 1, 0);
+
+ port_1_last = data;
+}
+
+
+WRITE8_HANDLER( m4_audio_2_w )
+{
+ UINT8 rising_bits = data & ~port_2_last;
+
+ /* if (data & 0x01) enable LEFT PLAYER EXPLOSION sound via 510K res (goes to left speaker) */
+ if (rising_bits & 0x01) sample_start_n(0, 1, 1, 0);
+
+ /* if (data & 0x02) enable RIGHT PLAYER EXPLOSION sound via 510K res (goes to right speaker) */
+ if (rising_bits & 0x02) sample_start_n(1, 1, 1, 0);
+
+ /* if (data & 0x04) enable LEFT TANK MOTOR sound (goes to left speaker) */
+
+ /* if (data & 0x08) enable RIGHT TANK MOTOR sound (goes to right speaker) */
+
+ /* if (data & 0x10) enable sound that is playing while the right plane is
+ flying. Circuit not named on schematics (goes to left speaker) */
+
+ /* if (data & 0x20) enable sound that is playing while the left plane is
+ flying. Circuit not named on schematics (goes to right speaker) */
+
+ /* D6 and D7 are not connected */
+
+ port_2_last = data;
+}
+
+
+
+/*************************************
+ *
+ * Clowns
+ *
+ * Discrete sound emulation: Mar 2005, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define CLOWNS_POP_BOTTOM_EN NODE_01
+#define CLOWNS_POP_MIDDLE_EN NODE_02
+#define CLOWNS_POP_TOP_EN NODE_03
+#define CLOWNS_SPRINGBOARD_HIT_EN NODE_04
+#define CLOWNS_SPRINGBOARD_MISS_EN NODE_05
+
+/* nodes - sounds */
+#define CLOWNS_NOISE NODE_06
+#define CLOWNS_POP_SND NODE_07
+#define CLOWNS_SB_HIT_SND NODE_08
+#define CLOWNS_SB_MISS_SND NODE_09
+
+/* nodes - adjusters */
+#define CLOWNS_MUSIC_ADJ NODE_11
+
+
+static const discrete_op_amp_tvca_info clowns_music_tvca_info =
+{
+ RES_M(3.3), /* r502 */
+ RES_K(10) + RES_K(680), /* r505 + r506 */
+ 0,
+ RES_K(680), /* r503 */
+ RES_K(10), /* r500 */
+ 0,
+ RES_K(680), /* r501 */
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(.001), /* c500 */
+ 0,
+ 0,
+ 12, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_op_amp_tvca_info clowns_pop_tvca_info =
+{
+ RES_M(2.7), /* r304 */
+ RES_K(680), /* r303 */
+ 0,
+ RES_K(680), /* r305 */
+ RES_K(1), /* j3 */
+ 0,
+ RES_K(470), /* r300 */
+ RES_K(1), /* j3 */
+ RES_K(510), /* r301 */
+ RES_K(1), /* j3 */
+ RES_K(680), /* r302 */
+ CAP_U(.015), /* c300 */
+ CAP_U(.1), /* c301 */
+ CAP_U(.082), /* c302 */
+ 5, /* v1 */
+ 5, /* v2 */
+ 5, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG2
+};
+
+
+static const discrete_op_amp_osc_info clowns_sb_hit_osc_info =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW,
+ RES_K(820), /* r200 */
+ RES_K(33), /* r203 */
+ RES_K(150), /* r201 */
+ RES_K(240), /* r204 */
+ RES_M(1), /* r202 */
+ 0,
+ 0,
+ 0,
+ CAP_U(0.01), /* c200 */
+ 12
+};
+
+
+static const discrete_op_amp_tvca_info clowns_sb_hit_tvca_info =
+{
+ RES_M(2.7), /* r207 */
+ RES_K(680), /* r205 */
+ 0,
+ RES_K(680), /* r208 */
+ RES_K(1), /* j3 */
+ 0,
+ RES_K(680), /* r206 */
+ 0,0,0,0,
+ CAP_U(1), /* c201 */
+ 0,
+ 0,
+ 5, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static const discrete_mixer_desc clowns_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(10),
+ RES_K(10),
+ RES_K(10) + 1.0 / (1.0 / RES_K(15) + 1.0 / RES_K(39)),
+ RES_K(1) },
+ { 0,
+ 0,
+ 0,
+ CLOWNS_MUSIC_ADJ },
+ { 0,
+ CAP_U(0.022),
+ 0,
+ 0 },
+ 0,
+ RES_K(100),
+ 0,
+ CAP_U(1),
+ 0,
+ 1
+};
+
+
+static DISCRETE_SOUND_START(clowns)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(CLOWNS_POP_BOTTOM_EN)
+ DISCRETE_INPUT_LOGIC(CLOWNS_POP_MIDDLE_EN)
+ DISCRETE_INPUT_LOGIC(CLOWNS_POP_TOP_EN)
+ DISCRETE_INPUT_LOGIC(CLOWNS_SPRINGBOARD_HIT_EN)
+ DISCRETE_INPUT_LOGIC(CLOWNS_SPRINGBOARD_MISS_EN)
+
+ /* The low value of the pot is set to 7000. A real 1M pot will never go to 0 anyways. */
+ /* This will give the control more apparent volume range. */
+ /* The music way overpowers the rest of the sounds anyways. */
+ DISCRETE_ADJUSTMENT_TAG(CLOWNS_MUSIC_ADJ, 1, RES_M(1), 7000, DISC_LOGADJ, "MUSIC_ADJ")
+
+ /************************************************
+ * Tone generator
+ ************************************************/
+ MIDWAY_TONE_GENERATOR(clowns_music_tvca_info)
+
+ /************************************************
+ * Balloon hit sounds
+ * The LFSR is the same as boothill
+ ************************************************/
+ /* Noise clock was breadboarded and measured at 7700Hz */
+ DISCRETE_LFSR_NOISE(CLOWNS_NOISE, 1, 1, 7700, 12.0, 0, 12.0/2, &midway_lfsr)
+
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_30, CLOWNS_POP_TOP_EN, CLOWNS_POP_MIDDLE_EN, CLOWNS_POP_BOTTOM_EN, CLOWNS_NOISE, 0, &clowns_pop_tvca_info)
+ DISCRETE_RCFILTER(NODE_31, 1, NODE_30, RES_K(15), CAP_U(.01))
+ DISCRETE_CRFILTER(NODE_32, 1, NODE_31, RES_K(15) + RES_K(39), CAP_U(.01))
+ DISCRETE_GAIN(CLOWNS_POP_SND, NODE_32, RES_K(39)/(RES_K(15) + RES_K(39)))
+
+ /************************************************
+ * Springboard hit
+ ************************************************/
+ DISCRETE_OP_AMP_OSCILLATOR(NODE_40, 1, &clowns_sb_hit_osc_info)
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_41, CLOWNS_SPRINGBOARD_HIT_EN, 0, 0, NODE_40, 0, &clowns_sb_hit_tvca_info)
+ /* The rest of the circuit is a filter. The frequency response was calculated with SPICE. */
+ DISCRETE_FILTER2(NODE_42, 1, NODE_41, 500, 1.0/.8, DISC_FILTER_LOWPASS)
+ /* The filter has a gain of 0.5 */
+ DISCRETE_GAIN(CLOWNS_SB_HIT_SND, NODE_42, 0.5)
+
+ /************************************************
+ * Springboard miss - INCOMPLETE
+ ************************************************/
+ DISCRETE_CONSTANT(CLOWNS_SB_MISS_SND, 0) /* Placeholder for incomplete sound */
+
+ /************************************************
+ * Combine all sound sources.
+ ************************************************/
+ DISCRETE_MIXER4(NODE_91, 1, CLOWNS_SB_HIT_SND, CLOWNS_SB_MISS_SND, CLOWNS_POP_SND, MIDWAY_TONE_SND, &clowns_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 11000)
+DISCRETE_SOUND_END
+
+
+static const char *clowns_sample_names[] =
+{
+ "*clowns",
+ "miss.wav",
+ 0
+};
+
+static struct Samplesinterface clowns_samples_interface =
+{
+ 1, /* 1 channel */
+ clowns_sample_names
+};
+
+
+MACHINE_DRIVER_START( clowns_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(clowns_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.70)
+
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(clowns)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( clowns_audio_1_w )
+{
+ coin_counter_w(0, (data >> 0) & 0x01);
+
+ clowns_set_controller_select((data >> 1) & 0x01);
+
+ /* D2-D7 are not connected */
+}
+
+
+WRITE8_HANDLER( clowns_audio_2_w )
+{
+ UINT8 rising_bits = data & ~port_2_last;
+
+ discrete_sound_w(CLOWNS_POP_BOTTOM_EN, (data >> 0) & 0x01);
+
+ discrete_sound_w(CLOWNS_POP_MIDDLE_EN, (data >> 1) & 0x01);
+
+ discrete_sound_w(CLOWNS_POP_TOP_EN, (data >> 2) & 0x01);
+
+ sound_global_enable((data >> 3) & 0x01);
+
+ discrete_sound_w(CLOWNS_SPRINGBOARD_HIT_EN, (data >> 4) & 0x01);
+
+ if (rising_bits & 0x20) sample_start_n(0, 0, 0, 0); /* springboard miss */
+
+ /* D6 and D7 are not connected */
+
+ port_2_last = data;
+}
+
+
+
+/*************************************
+ *
+ * Shuffleboard
+ *
+ *************************************/
+
+/* Noise clock was breadboarded and measured at 1210Hz */
+
+
+MACHINE_DRIVER_START( shuffle_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( shuffle_audio_1_w )
+{
+ /* if (data & 0x01) enable CLICK (balls collide) sound */
+
+ /* if (data & 0x02) enable SHUFFLE ROLLOVER sound */
+
+ sound_global_enable((data >> 2) & 0x01);
+
+ /* set SHUFFLE ROLLING sound((data >> 3) & 0x07) 0, if not rolling,
+ faster rolling = higher number */
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( shuffle_audio_2_w )
+{
+ /* if (data & 0x01) enable FOUL sound */
+
+ coin_counter_w(0, (data >> 1) & 0x01);
+
+ /* D2-D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Dog Patch
+ *
+ * We don't have the schematics, so this is all questionable.
+ * This game is most likely stereo as well.
+ *
+ *************************************/
+
+static const discrete_op_amp_tvca_info dogpatch_music_tvca_info =
+{
+ RES_M(3.3),
+ RES_K(10) + RES_K(680),
+ 0,
+ RES_K(680),
+ RES_K(10),
+ 0,
+ RES_K(680),
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(.001),
+ 0,
+ 0,
+ 12, /* v1 */
+ 0, /* v2 */
+ 0, /* v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG1,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE,
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE
+};
+
+
+static DISCRETE_SOUND_START(dogpatch)
+
+ /************************************************
+ * Tone generator
+ ************************************************/
+ MIDWAY_TONE_GENERATOR(dogpatch_music_tvca_info)
+
+ /************************************************
+ * Filter it to be AC.
+ ************************************************/
+ DISCRETE_CRFILTER(NODE_91, 1, MIDWAY_TONE_SND, RES_K(100), CAP_U(0.1))
+
+ DISCRETE_OUTPUT(NODE_91, 5000)
+
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( dogpatch_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(dogpatch)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.3)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( dogpatch_audio_w )
+{
+ /* D0 and D1 are most likely not used */
+
+ coin_counter_w(0, (data >> 2) & 0x01);
+
+ sound_global_enable((data >> 3) & 0x01);
+
+ /* if (data & 0x10) enable LEFT SHOOT sound */
+
+ /* if (data & 0x20) enable RIGHT SHOOT sound */
+
+ /* if (data & 0x40) enable CAN HIT sound */
+
+ /* D7 is most likely not used */
+}
+
+
+
+/*************************************
+ *
+ * Space Encounters
+ *
+ * Discrete sound emulation:
+ * Apr 2007, D.R.
+ *************************************/
+
+static struct SN76477interface spcenctr_sn76477_interface =
+{
+ 0, /* 4 noise_res (N/C) */
+ 0, /* 5 filter_res (N/C) */
+ 0, /* 6 filter_cap (N/C) */
+ 0, /* 7 decay_res (N/C) */
+ 0, /* 8 attack_decay_cap (N/C) */
+ RES_K(100), /* 10 attack_res */
+ RES_K(56), /* 11 amplitude_res */
+ RES_K(10), /* 12 feedback_res */
+ 0, /* 16 vco_voltage (N/C) */
+ CAP_U(0.047), /* 17 vco_cap */
+ RES_K(56), /* 18 vco_res */
+ 5.0, /* 19 pitch_voltage */
+ RES_K(150), /* 20 slf_res */
+ CAP_U(1.0), /* 21 slf_cap */
+ 0, /* 23 oneshot_cap (N/C) */
+ 0, /* 24 oneshot_res (N/C) */
+ 1, /* 22 vco */
+ 0, /* 26 mixer A */
+ 0, /* 25 mixer B */
+ 0, /* 27 mixer C */
+ 1, /* 1 envelope 1 */
+ 0, /* 28 envelope 2 */
+ 1 /* 9 enable (variable) */
+};
+
+
+/* nodes - inputs */
+#define SPCENCTR_ENEMY_SHIP_SHOT_EN NODE_01
+#define SPCENCTR_PLAYER_SHOT_EN NODE_02
+#define SPCENCTR_SCREECH_EN NODE_03
+#define SPCENCTR_CRASH_EN NODE_04
+#define SPCENCTR_EXPLOSION_EN NODE_05
+#define SPCENCTR_BONUS_EN NODE_06
+#define SPCENCTR_WIND_DATA NODE_07
+
+/* nodes - sounds */
+#define SPCENCTR_NOISE NODE_10
+#define SPCENCTR_ENEMY_SHIP_SHOT_SND NODE_11
+#define SPCENCTR_PLAYER_SHOT_SND NODE_12
+#define SPCENCTR_SCREECH_SND NODE_13
+#define SPCENCTR_CRASH_SND NODE_14
+#define SPCENCTR_EXPLOSION_SND NODE_15
+#define SPCENCTR_BONUS_SND NODE_16
+#define SPCENCTR_WIND_SND NODE_17
+
+
+static const discrete_op_amp_info spcenctr_enemy_ship_shot_op_amp_E1 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ 0, /* no r1 */
+ RES_K(510), /* R100 */
+ RES_M(2.2), /* R101 */
+ RES_M(2.2), /* R102 */
+ CAP_U(0.1), /* C100 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info spcenctr_enemy_ship_shot_op_amp_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_3 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW,
+ RES_K(560), /* R103 */
+ RES_K(7.5), /* R118 */
+ RES_K(22), /* R104 */
+ RES_K(47), /* R106 */
+ RES_K(100), /* R105 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.0022), /* C101 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_info spcenctr_enemy_ship_shot_op_amp_D1 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ RES_K(100), /* R107 */
+ RES_K(100), /* R109 */
+ RES_M(2.7), /* R108 */
+ RES_K(100), /* R110 */
+ 0, /* no c */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_filt_info spcenctr_enemy_ship_shot_filt =
+{
+ RES_K(100), /* R112 */
+ RES_K(10), /* R113 */
+ RES_M(4.3), /* r3 */
+ 0, /* no r4 */
+ RES_M(2.2), /* R114 */
+ CAP_U(0.001), /* c1 */
+ CAP_U(0.001), /* c2 */
+ 0, /* no c3 */
+ 0, /* vRef */
+ 12, /* vP */
+ 0 /* vN */
+};
+
+
+static const discrete_op_amp_1sht_info spcenctr_player_shot_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R500 */
+ RES_K(100), /* R502 */
+ RES_M(1), /* R501 */
+ RES_M(1), /* R503 */
+ RES_M(2.2), /* R504 */
+ CAP_U(1), /* C500 */
+ CAP_P(470), /* C501 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_info spcenctr_player_shot_op_amp_E1 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ 0, /* no r1 */
+ RES_K(10), /* R505 */
+ RES_M(1.5), /* R506 */
+ 0, /* no r4 */
+ CAP_U(0.22), /* C502 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info spcenctr_player_shot_op_amp_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_3 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW,
+ 1.0 / (1.0 / RES_M(1) + 1.0 / RES_K(330)) + RES_M(1.5), /* R507||R509 + R508 */
+ RES_M(1), /* R513 */
+ RES_K(560), /* R512 */
+ RES_M(2.7), /* R516 */
+ RES_M(1), /* R515 */
+ RES_M(4.7), /* R510 */
+ RES_M(3.3), /* R511 */
+ 0, /* no r8 */
+ CAP_P(330), /* C504 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_info spcenctr_player_shot_op_amp_C1 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ RES_K(560), /* R517 */
+ RES_K(470), /* R514 */
+ RES_M(2.7), /* R518 */
+ RES_K(560), /* R524 */
+ 0, /* no c */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_tvca_info spcenctr_player_shot_tvca =
+{
+ RES_M(2.7), /* R522 */
+ RES_K(560), /* R521 */
+ 0, /* no r3 */
+ RES_K(560), /* R560 */
+ RES_K(1), /* R42 */
+ 0, /* no r6 */
+ RES_K(560), /* R523 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(1), /* C506 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 12, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static const discrete_op_amp_tvca_info spcenctr_crash_tvca =
+{
+ RES_M(2.7), /* R302 */
+ RES_K(470), /* R300 */
+ 0, /* no r3 */
+ RES_K(470), /* R303 */
+ RES_K(1), /* R56 */
+ 0, /* no r6 */
+ RES_K(470), /* R301 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(2.2), /* C304 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 5, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static const discrete_op_amp_tvca_info spcenctr_explosion_tvca =
+{
+ RES_M(2.7), /* R402 */
+ RES_K(680), /* R400 */
+ 0, /* no r3 */
+ RES_K(680), /* R403 */
+ RES_K(1), /* R41 */
+ 0, /* no r6 */
+ RES_K(680), /* R401 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(2.2), /* C400 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 12, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static const discrete_555_desc spcenctr_555_bonus =
+{
+ DISC_555_OUT_SQW | DISC_555_OUT_DC,
+ 5, /* B+ voltage of 555 */
+ DEFAULT_555_VALUES
+};
+
+
+static const discrete_mixer_desc spcenctr_mixer =
+{
+ DISC_MIXER_IS_RESISTOR, /* type */
+ { RES_K(15), /* R117 */
+ RES_K(15), /* R526 */
+ RES_K(22), /* R211 */
+ RES_K(3.6), /* R309 */
+ RES_K(1.8) + RES_K(3.6) + RES_K(4.7), /* R405 + R406 + R407 */
+ RES_K(27), /* R715 */
+ RES_K(27)}, /* R51 */
+ {0}, /* no rNode{} */
+ { 0,
+ CAP_U(0.001), /* C505 */
+ CAP_U(0.1), /* C202 */
+ CAP_U(1), /* C303 */
+ 0,
+ 0,
+ CAP_U(10)}, /* C16 */
+ 0, /* no rI */
+ 0, /* no rF */
+ 0, /* no cF */
+ CAP_U(1), /* C900 */
+ 0, /* vRef = ground */
+ 1 /* gain */
+};
+
+
+static DISCRETE_SOUND_START(spcenctr)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUTX_LOGIC(SPCENCTR_ENEMY_SHIP_SHOT_EN, 12, 0, 0)
+ DISCRETE_INPUTX_LOGIC(SPCENCTR_PLAYER_SHOT_EN, 12, 0, 0)
+ DISCRETE_INPUT_LOGIC (SPCENCTR_SCREECH_EN)
+ DISCRETE_INPUT_LOGIC (SPCENCTR_CRASH_EN)
+ DISCRETE_INPUT_LOGIC (SPCENCTR_EXPLOSION_EN)
+ DISCRETE_INPUT_LOGIC (SPCENCTR_BONUS_EN)
+ DISCRETE_INPUT_DATA (SPCENCTR_WIND_DATA)
+
+
+ /************************************************
+ * Noise Generator
+ ************************************************/
+ /* Noise clock was breadboarded and measured at 7515 */
+ DISCRETE_LFSR_NOISE(SPCENCTR_NOISE, /* IC A0, pin 10 */
+ 1, /* ENAB */
+ 1, /* no RESET */
+ 7515, /* CLK in Hz */
+ 12, /* p-p AMPL */
+ 0, /* no FEED input */
+ 12.0/2, /* dc BIAS */
+ &midway_lfsr)
+
+
+ /************************************************
+ * Enemy Ship Shot
+ ************************************************/
+ DISCRETE_OP_AMP(NODE_20, /* IC E1, pin 10 */
+ 1, /* ENAB */
+ 0, /* no IN0 */
+ SPCENCTR_ENEMY_SHIP_SHOT_EN, /* IN1 */
+ &spcenctr_enemy_ship_shot_op_amp_E1)
+ DISCRETE_OP_AMP_VCO1(NODE_21, /* IC D1, pin 5 */
+ 1, /* ENAB */
+ NODE_20, /* VMOD1 */
+ &spcenctr_enemy_ship_shot_op_amp_osc)
+ DISCRETE_OP_AMP(NODE_22, /* IC D1, pin 9 */
+ 1, /* ENAB */
+ NODE_21, /* IN0 */
+ NODE_20, /* IN1 */
+ &spcenctr_enemy_ship_shot_op_amp_D1)
+ DISCRETE_OP_AMP_FILTER(NODE_23, /* IC D1, pin 10 */
+ 1, /* ENAB */
+ NODE_22, /* INP0 */
+ 0, /* no INP1 */
+ DISC_OP_AMP_FILTER_IS_BAND_PASS_1M | DISC_OP_AMP_IS_NORTON,
+ &spcenctr_enemy_ship_shot_filt)
+ DISCRETE_CRFILTER(SPCENCTR_ENEMY_SHIP_SHOT_SND,
+ 1, /* ENAB */
+ NODE_23, /* IN0 */
+ RES_K(1.8), /* R116 */
+ CAP_U(0.1) ) /* C104 */
+
+
+ /************************************************
+ * Player Shot
+ ************************************************/
+ DISCRETE_OP_AMP_ONESHOT(NODE_30, /* IC E1, pin 4 */
+ SPCENCTR_PLAYER_SHOT_EN, /* TRIG */
+ &spcenctr_player_shot_1sht) /* breadboarded and scoped at 325mS */
+ DISCRETE_OP_AMP(NODE_31, /* IC E1, pin 5 */
+ 1, /* ENAB */
+ 0, /* no IN0 */
+ NODE_30, /* IN1 */
+ &spcenctr_player_shot_op_amp_E1)
+ /* next 2 modules simulate the D502 voltage drop */
+ DISCRETE_ADDER2(NODE_32,
+ 1, /* ENAB */
+ NODE_31, /* IN0 */
+ -0.5) /* IN1 */
+ DISCRETE_CLAMP(NODE_33,
+ 1, /* ENAB */
+ NODE_32, /* IN0 */
+ 0, /* MIN */
+ 12, /* MAX */
+ 0) /* CLAMP */
+ DISCRETE_CRFILTER(NODE_34,
+ 1, /* ENAB */
+ SPCENCTR_NOISE, /* IN0 */
+ RES_M(1) + RES_K(330), /* R507, R509 */
+ CAP_U(0.1) ) /* C503 */
+ DISCRETE_GAIN(NODE_35,
+ NODE_34, /* IN0 */
+ RES_K(330)/(RES_M(1) + RES_K(330))) /* GAIN - R507 : R509 */
+ DISCRETE_OP_AMP_VCO2(NODE_36, /* IC C1, pin 4 */
+ 1, /* ENAB */
+ NODE_35, /* VMOD1 */
+ NODE_33, /* VMOD2 */
+ &spcenctr_player_shot_op_amp_osc)
+ DISCRETE_OP_AMP(NODE_37, /* IC C1, pin 9 */
+ 1, /* ENAB */
+ NODE_36, /* IN0 */
+ NODE_33, /* IN1 */
+ &spcenctr_player_shot_op_amp_C1)
+ DISCRETE_OP_AMP_TRIG_VCA(SPCENCTR_PLAYER_SHOT_SND, /* IC C1, pin 10 */
+ SPCENCTR_PLAYER_SHOT_EN, /* TRG0 */
+ 0, /* no TRG1 */
+ 0, /* no TRG2 */
+ NODE_37, /* IN0 */
+ 0, /* no IN1 */
+ &spcenctr_player_shot_tvca)
+
+
+ /************************************************
+ *Screech - unemulated
+ ************************************************/
+ DISCRETE_CONSTANT(SPCENCTR_SCREECH_SND, 0)
+
+
+ /************************************************
+ * Crash
+ ************************************************/
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_60, /* IC C2, pin 4 */
+ SPCENCTR_CRASH_EN, /* TRG0 */
+ 0, /* no TRG1 */
+ 0, /* no TRG2 */
+ SPCENCTR_NOISE, /* IN0 */
+ 0, /* no IN1 */
+ &spcenctr_crash_tvca)
+ /* The next 5 modules emulate the filter. */
+ /* The DC level was breadboarded and the frequency response was SPICEd */
+ DISCRETE_ADDER2(NODE_61, /* center on filter DC level */
+ 1, /* ENAB */
+ NODE_60, /* IN0 */
+ -6.8) /* IN1 */
+ DISCRETE_FILTER2(NODE_62,
+ 1, /* ENAB */
+ NODE_61, /* INP0 */
+ 130, /* FREQ */
+ 1.0 / 8, /* DAMP */
+ DISC_FILTER_BANDPASS)
+ DISCRETE_GAIN(NODE_63,
+ NODE_62, /* IN0 */
+ 6) /* GAIN */
+ DISCRETE_ADDER2(NODE_64, /* center on filter DC level */
+ 1, /* ENAB */
+ NODE_63, /* IN0 */
+ 6.8) /* IN1 */
+ DISCRETE_CLAMP(SPCENCTR_CRASH_SND, /* IC C2, pin 5 */
+ 1, /* ENAB */
+ NODE_64, /* IN0 */
+ 0, /* MIN */
+ 12.0 - OP_AMP_NORTON_VBE, /* MAX */
+ 0) /* CLAMP */
+
+
+ /************************************************
+ * Explosion
+ ************************************************/
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_70, /* IC D2, pin 10 */
+ SPCENCTR_EXPLOSION_EN, /* TRG0 */
+ 0, /* no TRG1 */
+ 0, /* no TRG2 */
+ SPCENCTR_NOISE, /* IN0 */
+ 0, /* no IN1 */
+ &spcenctr_explosion_tvca)
+ DISCRETE_RCFILTER(NODE_71,
+ 1, /* ENAB */
+ NODE_70, /* IN0 */
+ RES_K(1.8), /* R405 */
+ CAP_U(0.22) ) /* C401 */
+ DISCRETE_RCFILTER(SPCENCTR_EXPLOSION_SND,
+ 1, /* ENAB */
+ NODE_71, /* IN0 */
+ RES_K(1.8) + RES_K(3.6), /* R405 + R406 */
+ CAP_U(0.22) ) /* C402 */
+
+
+ /************************************************
+ *Bonus
+ ************************************************/
+ DISCRETE_555_ASTABLE(NODE_80, /* pin 5 */
+ /* the pin 4 reset is not connected in schematic, but should be */
+ SPCENCTR_BONUS_EN, /* RESET */
+ RES_K(1), /* R710 */
+ RES_K(27), /* R711 */
+ CAP_U(0.047), /* C710 */
+ &spcenctr_555_bonus)
+ DISCRETE_555_ASTABLE(NODE_81, /* pin 9 */
+ SPCENCTR_BONUS_EN, /* RESET pin 10 */
+ RES_K(100), /* R713 */
+ RES_K(47), /* R714 */
+ CAP_U(1), /* C713 */
+ &spcenctr_555_bonus)
+ DISCRETE_LOGIC_AND3(NODE_82, /* IC C-D, pin 6 */
+ 1, /* ENAB */
+ NODE_80, /* INP0 */
+ NODE_81, /* INP1 */
+ SPCENCTR_BONUS_EN) /* INP2 */
+ DISCRETE_GAIN(SPCENCTR_BONUS_SND, /* adjust from logic to TTL voltage level */
+ NODE_82, /* IN0 */
+ DEFAULT_TTL_V_LOGIC_1) /* GAIN */
+
+
+ /************************************************
+ *Wind - unemulated
+ ************************************************/
+ DISCRETE_CONSTANT(SPCENCTR_WIND_SND, 0)
+
+
+ /************************************************
+ * Final mix
+ ************************************************/
+ DISCRETE_MIXER7(NODE_91,
+ 1, /* ENAB */
+ SPCENCTR_ENEMY_SHIP_SHOT_SND, /* IN0 */
+ SPCENCTR_PLAYER_SHOT_SND, /* IN1 */
+ SPCENCTR_SCREECH_SND, /* IN2 */
+ SPCENCTR_CRASH_SND, /* IN3 */
+ SPCENCTR_EXPLOSION_SND, /* IN4 */
+ SPCENCTR_BONUS_SND, /* IN5 */
+ SPCENCTR_WIND_SND, /* IN6 */
+ &spcenctr_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 20000)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( spcenctr_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(SN76477, 0)
+ MDRV_SOUND_CONFIG(spcenctr_sn76477_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.20)
+
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(spcenctr)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1)
+MACHINE_DRIVER_END
+
+
+
+WRITE8_HANDLER( spcenctr_audio_1_w )
+{
+ sound_global_enable((data >> 0) & 0x01);
+
+ /* D1 is marked as 'OPTIONAL SWITCH VIDEO FOR COCKTAIL',
+ but it is never set by the software */
+
+ discrete_sound_w(SPCENCTR_CRASH_EN, (data >> 2) & 0x01);
+
+ /* D3-D7 are not connected */
+}
+
+
+WRITE8_HANDLER( spcenctr_audio_2_w )
+{
+ /* set WIND SOUND FREQ(data & 0x0f) 0, if no wind */
+
+ discrete_sound_w(SPCENCTR_EXPLOSION_EN, (data >> 4) & 0x01);
+
+ discrete_sound_w(SPCENCTR_PLAYER_SHOT_EN, (data >> 5) & 0x01);
+
+ /* D6 and D7 are not connected */
+
+ port_2_last = data;
+}
+
+
+WRITE8_HANDLER( spcenctr_audio_3_w )
+{
+ /* if (data & 0x01) enable SCREECH (hit the sides) sound */
+
+ discrete_sound_w(SPCENCTR_ENEMY_SHIP_SHOT_EN, (data >> 1) & 0x01);
+
+ spcenctr_set_strobe_state((data >> 2) & 0x01);
+
+ output_set_value("LAMP", (data >> 3) & 0x01);
+
+ discrete_sound_w(SPCENCTR_BONUS_EN, (data >> 4) & 0x01);
+
+ SN76477_enable_w(0, (data >> 5) & 0x01); /* saucer sound */
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Phantom II
+ *
+ *************************************/
+
+static const char *phantom2_sample_names[] =
+{
+ "*phantom2",
+ "1.wav", /* shot */
+ "2.wav", /* explosion */
+ 0
+};
+
+
+static struct Samplesinterface phantom2_samples_interface =
+{
+ 2, /* 2 channels */
+ phantom2_sample_names
+};
+
+
+MACHINE_DRIVER_START( phantom2_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(phantom2_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( phantom2_audio_1_w )
+{
+ UINT8 rising_bits = data & ~port_1_last;
+
+ /* if (data & 0x01) enable PLAYER SHOT sound */
+ if (rising_bits & 0x01) sample_start_n(0, 0, 0, 0);
+
+ /* if (data & 0x02) enable ENEMY SHOT sound */
+
+ sound_global_enable((data >> 2) & 0x01);
+
+ coin_counter_w(0, (data >> 3) & 0x01);
+
+ /* if (data & 0x10) enable RADAR sound */
+
+ /* D5-D7 are not connected */
+
+ port_1_last = data;
+}
+
+
+WRITE8_HANDLER( phantom2_audio_2_w )
+{
+ UINT8 rising_bits = data & ~port_2_last;
+
+ /* D0-D2 are not connected */
+
+ /* if (data & 0x08) enable EXPLOSION sound */
+ if (rising_bits & 0x08) sample_start_n(0, 1, 1, 0);
+
+ output_set_value("EXPLAMP", (data >> 4) & 0x01);
+
+ /* set JET SOUND FREQ((data >> 5) & 0x07) 0, if no jet sound */
+
+ port_2_last = data;
+}
+
+
+
+/*************************************
+ *
+ * Bowling Alley
+ *
+ * Discrete sound emulation:
+ * Apr 2007, D.R.
+ *
+ *************************************/
+
+/* nodes - inputs */
+#define BOWLER_FOWL_EN NODE_01
+
+/* nodes - sounds */
+#define BOWLER_FOWL_SND NODE_10
+
+
+static const discrete_op_amp_tvca_info bowler_fowl_tvca =
+{
+ RES_M(2.7), /* R1103 */
+ RES_K(680), /* R1102 */
+ 0, /* no r3 */
+ RES_K(680), /* R1104 */
+ RES_K(1), /* SIP */
+ 0, /* no r6 */
+ RES_K(300), /* R1101 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(0.1), /* C1050 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 5, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static DISCRETE_SOUND_START(bowler)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(BOWLER_FOWL_EN)
+
+
+ /************************************************
+ * Explosion
+ ************************************************/
+ DISCRETE_SQUAREWFIX(NODE_20,
+ 1, /* ENAB */
+ 180, /* FREQ */
+ DEFAULT_TTL_V_LOGIC_1, /* p-p AMP */
+ 50, /* DUTY */
+ DEFAULT_TTL_V_LOGIC_1 / 2, /* dc BIAS */
+ 0) /* PHASE */
+ DISCRETE_OP_AMP_TRIG_VCA(NODE_21, /* IC P3, pin 9 */
+ BOWLER_FOWL_EN, /* TRG0 */
+ 0, /* no TRG1 */
+ 0, /* no TRG2 */
+ NODE_20, /* IN0 */
+ 0, /* no IN1 */
+ &bowler_fowl_tvca)
+ DISCRETE_CRFILTER(BOWLER_FOWL_SND,
+ 1, /* ENAB */
+ NODE_21, /* IN0 */
+ RES_K(68), /* R1120 */
+ CAP_U(0.1) ) /* C1048 */
+
+ DISCRETE_OUTPUT(BOWLER_FOWL_SND, 10000)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( bowler_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(bowler)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( bowler_audio_1_w )
+{
+ /* D0 - selects controller on the cocktail PCB */
+
+ coin_counter_w(0, (data >> 1) & 0x01);
+
+ sound_global_enable((data >> 2) & 0x01);
+
+ discrete_sound_w(BOWLER_FOWL_EN, (data >> 3) & 0x01);
+
+ /* D4 - appears to be a screen flip, but it's
+ shown unconnected on the schematics for both the
+ upright and cocktail PCB's */
+
+ /* D5 - triggered on a 'strike', sound circuit not labeled */
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( bowler_audio_2_w )
+{
+ /* set BALL ROLLING SOUND FREQ(data & 0x0f)
+ 0, if no rolling, 0x08 used during ball return */
+
+ /* D4 - triggered when the ball crosses the foul line,
+ sound circuit not labeled */
+
+ /* D5 - triggered on a 'spare', sound circuit not labeled */
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( bowler_audio_3_w )
+{
+ /* regardless of the data, enable BALL HITS PIN 1 sound
+ (top circuit on the schematics) */
+}
+
+
+WRITE8_HANDLER( bowler_audio_4_w )
+{
+ /* regardless of the data, enable BALL HITS PIN 2 sound
+ (bottom circuit on the schematics) */
+}
+
+
+WRITE8_HANDLER( bowler_audio_5_w )
+{
+ /* not sure, appears to me trigerred alongside the two
+ BALL HITS PIN sounds */
+}
+
+
+WRITE8_HANDLER( bowler_audio_6_w )
+{
+ /* D0 is not connected */
+
+ /* D3 is not connected */
+
+ /* D6 and D7 are not connected */
+
+ /* D1, D2, D4 and D5 have something to do with a chime circuit.
+ D1 and D4 are HI when a 'strike' happens, and D2 and D5 are
+ HI on a 'spare' */
+}
+
+
+
+/*************************************
+ *
+ * Space Invaders
+ *
+ * Author : Tormod Tjaberg
+ * Created : 1997-04-09
+ * Description : Sound routines for the 'invaders' games
+ *
+ * Note:
+ * The samples were taken from Michael Strutt's (mstrutt@pixie.co.za)
+ * excellent space invader emulator and converted to signed samples so
+ * they would work under SEAL. The port info was also gleaned from
+ * his emulator. These sounds should also work on all the invader games.
+ *
+ * Discrete sound emulation:
+ * Apr 2007, D.R.
+ *
+ *************************************/
+
+static struct SN76477interface invaders_sn76477_interface =
+{
+ 0, /* 4 noise_res (N/C) */
+ 0, /* 5 filter_res (N/C) */
+ 0, /* 6 filter_cap (N/C) */
+ 0, /* 7 decay_res (N/C) */
+ 0, /* 8 attack_decay_cap (N/C) */
+ RES_K(100), /* 10 attack_res */
+ RES_K(56), /* 11 amplitude_res */
+ RES_K(10), /* 12 feedback_res */
+ 0, /* 16 vco_voltage (N/C) */
+ CAP_U(0.1), /* 17 vco_cap */
+ RES_K(8.2), /* 18 vco_res */
+ 5.0, /* 19 pitch_voltage */
+ RES_K(120), /* 20 slf_res */
+ CAP_U(1.0), /* 21 slf_cap */
+ 0, /* 23 oneshot_cap (N/C) */
+ 0, /* 24 oneshot_res (N/C) */
+ 1, /* 22 vco */
+ 0, /* 26 mixer A */
+ 0, /* 25 mixer B */
+ 0, /* 27 mixer C */
+ 1, /* 1 envelope 1 */
+ 0, /* 28 envelope 2 */
+ 1 /* 9 enable (variable) */
+};
+
+
+
+static const char *invaders_sample_names[] =
+{
+ "*invaders",
+ "1.wav", /* shot/missle */
+ "2.wav", /* base hit/explosion */
+ "3.wav", /* invader hit */
+ "4.wav", /* fleet move 1 */
+ "5.wav", /* fleet move 2 */
+ "6.wav", /* fleet move 3 */
+ "7.wav", /* fleet move 4 */
+ "8.wav", /* UFO/saucer hit */
+ "9.wav", /* bonus base */
+ 0
+};
+
+
+static struct Samplesinterface invaders_samples_interface =
+{
+ 6, /* 6 channels */
+ invaders_sample_names
+};
+
+
+/* left in for all games that hack into invaders samples for audio */
+MACHINE_DRIVER_START( invaders_samples_audio )
+ MDRV_SOUND_START(samples)
+
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(SN76477, 0)
+ MDRV_SOUND_CONFIG(invaders_sn76477_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
+
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(invaders_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_DRIVER_END
+
+
+/* nodes - inputs */
+#define INVADERS_SAUCER_HIT_EN 01
+#define INVADERS_FLEET_DATA 02
+#define INVADERS_BONUS_MISSLE_BASE_EN 03
+#define INVADERS_INVADER_HIT_EN 04
+#define INVADERS_EXPLOSION_EN 05
+#define INVADERS_MISSILE_EN 06
+
+/* nodes - sounds */
+#define INVADERS_NOISE NODE_10
+#define INVADERS_SAUCER_HIT_SND 11
+#define INVADERS_FLEET_SND 12
+#define INVADERS_BONUS_MISSLE_BASE_SND 13
+#define INVADERS_INVADER_HIT_SND 14
+#define INVADERS_EXPLOSION_SND 15
+#define INVADERS_MISSILE_SND 16
+
+
+static const discrete_op_amp_info invaders_saucer_hit_op_amp_B3_9 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ 0, /* no r1 */
+ RES_K(100), /* R72 */
+ RES_M(1), /* R71 */
+ 0, /* no r4 */
+ CAP_U(1), /* C23 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invaders_saucer_hit_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP,
+ RES_M(1), /* R70 */
+ RES_K(470), /* R64 */
+ RES_K(100), /* R61 */
+ RES_K(120), /* R63 */
+ RES_M(1), /* R62 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.1), /* C21 */
+ 12, /* vP */
+};
+
+static const discrete_op_amp_osc_info invaders_saucer_hit_vco =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW,
+ RES_M(1), /* R65 */
+ RES_K(470), /* R66 */
+ RES_K(680), /* R67 */
+ RES_M(1), /* R69*/
+ RES_M(1), /* R68 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_P(470), /* C22 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_info invaders_saucer_hit_op_amp_B3_10 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ RES_K(680), /* R73 */
+ RES_K(680), /* R77 */
+ RES_M(2.7), /* R74 */
+ RES_K(680), /* R75 */
+ 0, /* no c */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_comp_adder_table invaders_thump_resistors =
+{
+ DISC_COMP_P_RESISTOR,
+ 0, /* no cDefault */
+ 4, /* length */
+ { RES_K(20) + RES_K(20), /* R126 + R127 */
+ RES_K(68), /* R128 */
+ RES_K(82), /* R129 */
+ RES_K(100) } /* R130 */
+};
+
+
+static const discrete_555_desc invaders_thump_555 =
+{
+ DISC_555_OUT_ENERGY | DISC_555_OUT_DC,
+ 5.0 - 0.6, /* 5V - diode drop */
+ DEFAULT_TTL_V_LOGIC_1, /* Output of F3 7411 buffer */
+ DEFAULT_555_THRESHOLD,
+ DEFAULT_555_TRIGGER
+};
+
+
+static const discrete_555_desc invaders_bonus_555 =
+{
+ DISC_555_OUT_SQW | DISC_555_OUT_DC,
+ 5.0, /* 5V */
+ DEFAULT_555_VALUES
+};
+
+
+static const discrete_op_amp_1sht_info invaders_invader_hit_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R49 */
+ RES_K(100), /* R51 */
+ RES_M(1), /* R48 */
+ RES_M(1), /* R50 */
+ RES_M(2.2), /* R52 */
+ CAP_U(0.1), /* C18 */
+ CAP_P(470), /* C20 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_info invaders_invader_hit_op_amp_D3_10 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ 0, /* no r1 */
+ RES_K(10), /* R53 */
+ RES_M(1), /* R137 */
+ 0, /* no r4 */
+ CAP_U(0.47), /* C19 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invaders_invader_hit_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP,
+ RES_M(1), /* R37 */
+ RES_K(10), /* R41 */
+ RES_K(100), /* R38 */
+ RES_K(120), /* R40 */
+ RES_M(1), /* R39 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.1), /* C16 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invaders_invader_hit_vco =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP,
+ RES_M(1), /* R42 */
+ RES_K(470), /* R43 */
+ RES_K(680), /* R44 */
+ RES_M(1), /* R46 */
+ RES_M(1), /* R45 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_P(330), /* C16 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_info invaders_invader_hit_op_amp_D3_4 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ RES_K(470), /* R55 */
+ RES_K(680), /* R54 */
+ RES_M(2.7), /* R56 */
+ RES_K(680), /* R57 */
+ 0, /* no c */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_1sht_info invaders_explosion_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R90 */
+ RES_K(100), /* R88 */
+ RES_M(1), /* R91 */
+ RES_M(1), /* R89 */
+ RES_M(2.2), /* R92 */
+ CAP_U(2.2), /* C24 */
+ CAP_P(470), /* C25 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_tvca_info invaders_explosion_tvca =
+{
+ RES_M(2.7), /* R80 */
+ RES_K(680), /* R79 */
+ 0, /* no r3 */
+ RES_K(680), /* R82 */
+ RES_K(10), /* R93 */
+ 0, /* no r6 */
+ RES_K(680), /* R83 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(1), /* C26 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 12.0 - OP_AMP_NORTON_VBE, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static const discrete_op_amp_1sht_info invaders_missle_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R32 */
+ RES_K(100), /* R30 */
+ RES_M(1), /* R31 */
+ RES_M(1), /* R33 */
+ RES_M(2.2), /* R34 */
+ CAP_U(1), /* C12 */
+ CAP_P(470), /* C15 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_info invaders_missle_op_amp_B3 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ 0, /* no r1 */
+ RES_K(10), /* R35 */
+ RES_M(1.5), /* R36 */
+ 0, /* no r4 */
+ CAP_U(0.22), /* C13 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invaders_missle_op_amp_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_VCO_3 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_SQW,
+ 1.0 / (1.0 / RES_M(1) + 1.0 / RES_K(330)) + RES_M(1.5), /* R29||R11 + R12 */
+ RES_M(1), /* R16 */
+ RES_K(560), /* R17 */
+ RES_M(2.2), /* R19 */
+ RES_M(1), /* R16 */
+ RES_M(4.7), /* R14 */
+ RES_M(3.3), /* R13 */
+ 0, /* no r8 */
+ CAP_P(330), /* C58 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_info invaders_missle_op_amp_A3 =
+{
+ DISC_OP_AMP_IS_NORTON,
+ RES_K(560), /* R22 */
+ RES_K(470), /* R15 */
+ RES_M(2.7), /* R20 */
+ RES_K(560), /* R21 */
+ 0, /* no c */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_tvca_info invaders_missle_tvca =
+{
+ RES_M(2.7), /* R25 */
+ RES_K(560), /* R23 */
+ 0, /* no r3 */
+ RES_K(560), /* R26 */
+ RES_K(1), /* */
+ 0, /* no r6 */
+ RES_K(560), /* R60 */
+ 0, /* no r8 */
+ 0, /* no r9 */
+ 0, /* no r10 */
+ 0, /* no r11 */
+ CAP_U(0.1), /* C14 */
+ 0, /* no c2 */
+ 0, /* no c3 */
+ 5, /* v1 */
+ 0, /* no v2 */
+ 0, /* no v3 */
+ 12, /* vP */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f0 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f1 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_TRG0, /* f2 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f3 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE, /* no f4 */
+ DISC_OP_AMP_TRIGGER_FUNCTION_NONE /* no f5 */
+};
+
+
+static const discrete_mixer_desc invaders_mixer =
+{
+ DISC_MIXER_IS_OP_AMP, /* type */
+ { RES_K(200), /* R78 */
+ RES_K(10) + 100 + 100, /* R134 + R133 + R132 */
+ RES_K(150), /* R136 */
+ RES_K(200), /* R59 */
+ RES_K(2) + RES_K(6.8) + RES_K(5.6), /* R86 + R85 + R84 */
+ RES_K(150) }, /* R28 */
+ {0}, /* no rNode{} */
+ { 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(0.001) }, /* C11 */
+ 0, /* no rI */
+ RES_K(100), /* R105 */
+ 0, /* no cF */
+ CAP_U(0.1), /* C45 */
+ 0, /* vRef = ground */
+ 1 /* gain */
+};
+
+
+/* sound board 1 or 2, for multi-board games */
+#define INVADERS_NODE(_node, _board) (NODE_START + _node + ((_board - 1) * 100))
+
+/************************************************
+ * Noise Generator
+ ************************************************/
+/* Noise clock was breadboarded and measured at 7515 */
+#define INVADERS_NOISE_GENERATOR \
+ DISCRETE_LFSR_NOISE(INVADERS_NOISE, /* IC N5, pin 10 */ \
+ 1, /* ENAB */ \
+ 1, /* no RESET */ \
+ 7515, /* CLK in Hz */ \
+ 12, /* p-p AMPL */ \
+ 0, /* no FEED input */ \
+ 12.0/2, /* dc BIAS */ \
+ &midway_lfsr)
+
+
+/************************************************
+ * Saucer Hit
+ ************************************************/
+#define INVADERS_SAUCER_HIT(_board) \
+ DISCRETE_INPUTX_LOGIC(INVADERS_NODE(INVADERS_SAUCER_HIT_EN, _board), 12, 0, 0) \
+ DISCRETE_OP_AMP(INVADERS_NODE(20, _board), /* IC B3, pin 9 */ \
+ 1, /* ENAB */ \
+ 0, /* no IN0 */ \
+ INVADERS_NODE(INVADERS_SAUCER_HIT_EN, _board), /* IN1 */ \
+ &invaders_saucer_hit_op_amp_B3_9) \
+ DISCRETE_OP_AMP_OSCILLATOR(INVADERS_NODE(21, _board), /* IC A4, pin 5 */ \
+ 1, /* ENAB */ \
+ &invaders_saucer_hit_osc) \
+ DISCRETE_OP_AMP_VCO1(INVADERS_NODE(22, _board), /* IC A4, pin 9 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(21, _board), /* VMOD1 */ \
+ &invaders_saucer_hit_vco) \
+ DISCRETE_OP_AMP(INVADERS_NODE(INVADERS_SAUCER_HIT_SND, _board), /* IC B3, pin 10 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(22, _board), /* IN0 */ \
+ INVADERS_NODE(20, _board), /* IN1 */ \
+ &invaders_saucer_hit_op_amp_B3_10)
+
+
+/************************************************
+ * Fleet movement
+ ************************************************/
+#define INVADERS_FLEET(_board) \
+ DISCRETE_INPUT_DATA (INVADERS_NODE(INVADERS_FLEET_DATA, _board)) \
+ DISCRETE_COMP_ADDER(INVADERS_NODE(30, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(INVADERS_FLEET_DATA, _board), /* DATA */ \
+ &invaders_thump_resistors) \
+ DISCRETE_555_ASTABLE(INVADERS_NODE(31, _board), /* IC F3, pin 6 */ \
+ 1, /* RESET */ \
+ INVADERS_NODE(30, _board), /* R1 */ \
+ RES_K(75), /* R131 */ \
+ CAP_U(0.1), /* C29 */ \
+ &invaders_thump_555) \
+ DISCRETE_RCFILTER(INVADERS_NODE(32, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(31, _board), /* IN0 */ \
+ 100, /* R132 */ \
+ CAP_U(4.7) ) /* C31 */ \
+ DISCRETE_RCFILTER(INVADERS_NODE(INVADERS_FLEET_SND, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(32, _board), /* IN0 */ \
+ 100 + 100, /* R132 + R133 */ \
+ CAP_U(10) ) /* C32 */
+
+
+/************************************************
+ * Bonus Missle Base
+ ************************************************/
+#define INVADERS_BONUS_MISSLE_BASE(_board) \
+ DISCRETE_INPUT_LOGIC (INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, _board)) \
+ DISCRETE_555_ASTABLE(INVADERS_NODE(40, _board), /* IC F4, pin 9 */ \
+ INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, _board),/* RESET */ \
+ RES_K(100), /* R94 */ \
+ RES_K(47), /* R95 */ \
+ CAP_U(1), /* C34 */ \
+ &invaders_bonus_555) \
+ DISCRETE_SQUAREWFIX(INVADERS_NODE(41, _board), \
+ 1, /* ENAB */ \
+ 480, /* FREQ */ \
+ 1, /* AMP */ \
+ 50, /* DUTY */ \
+ 1.0/2, /* BIAS */ \
+ 0) /* PHASE */ \
+ DISCRETE_LOGIC_AND3(INVADERS_NODE(42, _board), /* IC F3, pin 12 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, _board),/* INP0 */ \
+ INVADERS_NODE(41, _board), /* INP1 */ \
+ INVADERS_NODE(40, _board) ) /* INP2 */ \
+ DISCRETE_GAIN(INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_SND, _board),/* adjust from logic to TTL voltage level */\
+ INVADERS_NODE(42, _board), /* IN0 */ \
+ DEFAULT_TTL_V_LOGIC_1) /* GAIN */
+
+
+/************************************************
+ * Invader Hit
+ ************************************************/
+#define INVADERS_INVADER_HIT(_board, _type) \
+ DISCRETE_INPUTX_LOGIC(INVADERS_NODE(INVADERS_INVADER_HIT_EN, _board), 5, 0, 0) \
+ DISCRETE_OP_AMP_ONESHOT(INVADERS_NODE(50, _board), /* IC D3, pin 9 */ \
+ INVADERS_NODE(INVADERS_INVADER_HIT_EN, _board), /* TRIG */ \
+ &_type##_invader_hit_1sht) \
+ DISCRETE_OP_AMP(INVADERS_NODE(51, _board), /* IC D3, pin 10 */ \
+ 1, /* ENAB */ \
+ 0, /* no IN0 */ \
+ INVADERS_NODE(50, _board), /* IN1 */ \
+ &invaders_invader_hit_op_amp_D3_10) \
+ DISCRETE_OP_AMP_OSCILLATOR(INVADERS_NODE(52, _board), /* IC B4, pin 5 */ \
+ 1, /* ENAB */ \
+ &_type##_invader_hit_osc) \
+ DISCRETE_OP_AMP_VCO1(INVADERS_NODE(53, _board), /* IC B4, pin 4 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(52, _board), /* VMOD1 */ \
+ &invaders_invader_hit_vco) \
+ DISCRETE_OP_AMP(INVADERS_NODE(INVADERS_INVADER_HIT_SND, _board), /* IC D3, pin 4 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(53, _board), /* IN0 */ \
+ INVADERS_NODE(51, _board), /* IN1 */ \
+ &invaders_invader_hit_op_amp_D3_4)
+
+
+/************************************************
+ * Explosion
+ ************************************************/
+#define INVADERS_EXPLOSION(_board) \
+ DISCRETE_INPUTX_LOGIC(INVADERS_NODE(INVADERS_EXPLOSION_EN, _board), 5, 0, 0) \
+ DISCRETE_OP_AMP_ONESHOT(INVADERS_NODE(60, _board), /* IC D2, pin 10 */ \
+ INVADERS_NODE(INVADERS_EXPLOSION_EN, _board), /* TRIG */ \
+ &invaders_explosion_1sht) \
+ DISCRETE_OP_AMP_TRIG_VCA(INVADERS_NODE(61, _board), /* IC D2, pin 4 */ \
+ INVADERS_NODE(60, _board), /* TRG0 */ \
+ 0, /* no TRG1 */ \
+ 0, /* no TRG2 */ \
+ INVADERS_NOISE, /* IN0 */ \
+ 0, /* no IN1 */ \
+ &invaders_explosion_tvca) \
+ DISCRETE_RCFILTER(INVADERS_NODE(62, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(61, _board), /* IN0 */ \
+ RES_K(5.6), /* R84 */ \
+ CAP_U(0.1) ) /* C27 */ \
+ DISCRETE_RCFILTER(INVADERS_NODE(INVADERS_EXPLOSION_SND, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(62, _board), /* IN0 */ \
+ RES_K(5.6) + RES_K(6.8), /* R84 + R85 */ \
+ CAP_U(0.1) ) /* C28 */
+
+
+/************************************************
+ * Missle Sound
+ ************************************************/
+#define INVADERS_MISSILE(_board, _type) \
+ DISCRETE_INPUTX_LOGIC(INVADERS_NODE(INVADERS_MISSILE_EN, _board), 5, 0, 0) \
+ DISCRETE_OP_AMP_ONESHOT(INVADERS_NODE(70, _board), /* IC B3, pin 4 */ \
+ INVADERS_NODE(INVADERS_MISSILE_EN, _board), /* TRIG */ \
+ &_type##_missle_1sht) \
+ DISCRETE_OP_AMP(INVADERS_NODE(71, _board), /* IC B3, pin 5 */ \
+ 1, /* ENAB */ \
+ 0, /* no IN0 */ \
+ INVADERS_NODE(70, _board), /* IN1 */ \
+ &invaders_missle_op_amp_B3) \
+ /* next 2 modules simulate the D1 voltage drop */ \
+ DISCRETE_ADDER2(INVADERS_NODE(72, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(71, _board), /* IN0 */ \
+ -0.5) /* IN1 */ \
+ DISCRETE_CLAMP(INVADERS_NODE(73, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(72, _board), /* IN0 */ \
+ 0, /* MIN */ \
+ 12, /* MAX */ \
+ 0) /* CLAMP */ \
+ DISCRETE_CRFILTER(INVADERS_NODE(74, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NOISE, /* IN0 */ \
+ RES_M(1) + RES_K(330), /* R29, R11 */ \
+ CAP_U(0.1) ) /* C57 */ \
+ DISCRETE_GAIN(INVADERS_NODE(75, _board), \
+ INVADERS_NODE(74, _board), /* IN0 */ \
+ RES_K(330)/(RES_M(1) + RES_K(330))) /* GAIN - R29 : R11 */ \
+ DISCRETE_OP_AMP_VCO2(INVADERS_NODE(76, _board), /* IC C1, pin 4 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(75, _board), /* VMOD1 */ \
+ INVADERS_NODE(73, _board), /* VMOD2 */ \
+ &invaders_missle_op_amp_osc) \
+ DISCRETE_OP_AMP(INVADERS_NODE(77, _board), /* IC A3, pin 9 */ \
+ 1, /* ENAB */ \
+ INVADERS_NODE(76, _board), /* IN0 */ \
+ INVADERS_NODE(73, _board), /* IN1 */ \
+ &invaders_missle_op_amp_A3) \
+ DISCRETE_OP_AMP_TRIG_VCA(INVADERS_NODE(INVADERS_MISSILE_SND, _board), /* IC A3, pin 10 */ \
+ INVADERS_NODE(INVADERS_MISSILE_EN, _board), /* TRG0 */ \
+ 0, /* no TRG1 */ \
+ 0, /* no TRG2 */ \
+ INVADERS_NODE(77, _board), /* IN0 */ \
+ 0, /* no IN1 */ \
+ &invaders_missle_tvca)
+
+
+/************************************************
+ * Final mix
+ ************************************************/
+#define INVADERS_MIXER(_board, _type) \
+ DISCRETE_MIXER6(INVADERS_NODE(90, _board), \
+ 1, /* ENAB */ \
+ INVADERS_NODE(INVADERS_SAUCER_HIT_SND, _board), /* IN0 */ \
+ INVADERS_NODE(INVADERS_FLEET_SND, _board), /* IN1 */ \
+ INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_SND, _board), /* IN2 */ \
+ INVADERS_NODE(INVADERS_INVADER_HIT_SND, _board), /* IN3 */ \
+ INVADERS_NODE(INVADERS_EXPLOSION_SND, _board), /* IN4 */ \
+ INVADERS_NODE(INVADERS_MISSILE_SND, _board), /* IN5 */ \
+ &_type##_mixer) \
+ DISCRETE_OUTPUT(INVADERS_NODE(90, _board), 2500)
+
+/* Schematic M051-00739-A005 and M051-00739-B005 */
+/* P.C. A084-90700-B000 and A084-90700-C000 */
+static DISCRETE_SOUND_START(invaders)
+ INVADERS_NOISE_GENERATOR
+ INVADERS_SAUCER_HIT(1)
+ INVADERS_FLEET(1)
+ INVADERS_BONUS_MISSLE_BASE(1)
+ INVADERS_INVADER_HIT(1, invaders)
+ INVADERS_EXPLOSION(1)
+ INVADERS_MISSILE(1, invaders)
+ INVADERS_MIXER(1, invaders)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( invaders_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(SN76477, 0)
+ MDRV_SOUND_CONFIG(invaders_sn76477_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
+
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(invaders)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( invaders_audio_1_w )
+{
+ SN76477_enable_w(0, (~data >> 0) & 0x01); /* saucer sound */
+
+ discrete_sound_w(INVADERS_NODE(INVADERS_MISSILE_EN, 1), data & 0x02);
+ discrete_sound_w(INVADERS_NODE(INVADERS_EXPLOSION_EN, 1), data & 0x04);
+ discrete_sound_w(INVADERS_NODE(INVADERS_INVADER_HIT_EN, 1), data & 0x08);
+ discrete_sound_w(INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, 1), data & 0x10);
+
+ sound_global_enable(data & 0x20);
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( invaders_audio_2_w )
+{
+ discrete_sound_w(INVADERS_NODE(INVADERS_FLEET_DATA, 1), data & 0x0f);
+ discrete_sound_w(INVADERS_NODE(INVADERS_SAUCER_HIT_EN, 1), data & 0x10);
+
+ /* the flip screen line is only connected on the cocktail PCB */
+ if (invaders_is_cabinet_cocktail())
+ {
+ invaders_set_flip_screen((data >> 5) & 0x01);
+ }
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Blue Shark
+ *
+ * Discrete sound emulation: Jan 2007, D.R.
+ *
+ *************************************/
+
+/* Noise clock was breadboarded and measured at 7700Hz */
+
+
+/* nodes - inputs */
+#define BLUESHRK_OCTOPUS_EN NODE_01
+#define BLUESHRK_HIT_EN NODE_02
+#define BLUESHRK_SHARK_EN NODE_03
+#define BLUESHRK_SHOT_EN NODE_04
+#define BLUESHRK_GAME_ON_EN NODE_05
+
+/* nodes - sounds */
+#define BLUESHRK_NOISE_1 NODE_11
+#define BLUESHRK_NOISE_2 NODE_12
+#define BLUESHRK_OCTOPUS_SND NODE_13
+#define BLUESHRK_HIT_SND NODE_14
+#define BLUESHRK_SHARK_SND NODE_15
+#define BLUESHRK_SHOT_SND NODE_16
+
+
+static const discrete_555_desc blueshrk_555_H1A =
+{
+ DISC_555_OUT_SQW | DISC_555_OUT_DC | DISC_555_TRIGGER_IS_LOGIC,
+ 5, /* B+ voltage of 555 */
+ DEFAULT_555_VALUES
+};
+
+
+static const discrete_555_desc blueshrk_555_H1B =
+{
+ DISC_555_OUT_ENERGY | DISC_555_OUT_DC,
+ 5, /* B+ voltage of 555 */
+ 12, /* the OC buffer H2 converts the output voltage to 12V. */
+ DEFAULT_555_THRESHOLD, DEFAULT_555_TRIGGER
+};
+
+
+static const discrete_mixer_desc blueshrk_mixer =
+{
+ DISC_MIXER_IS_OP_AMP,
+ { RES_K(750),
+ 1.0/(1.0/RES_K(510) + 1.0/RES_K(22)),
+ RES_M(1),
+ RES_K(56) },
+ { 0 },
+ { CAP_U(1),
+ CAP_U(1),
+ CAP_U(1),
+ CAP_U(1) },
+ 0,
+ RES_K(100),
+ 0,
+ CAP_U(0.1),
+ 0, /* Vref */
+ 700 /* final gain */
+};
+
+
+static DISCRETE_SOUND_START(blueshrk)
+
+ /************************************************
+ * Input register mapping
+ ************************************************/
+ DISCRETE_INPUT_LOGIC(BLUESHRK_OCTOPUS_EN)
+ DISCRETE_INPUT_LOGIC(BLUESHRK_HIT_EN)
+ DISCRETE_INPUT_LOGIC(BLUESHRK_SHARK_EN)
+ DISCRETE_INPUT_LOGIC(BLUESHRK_SHOT_EN)
+ DISCRETE_INPUT_LOGIC(BLUESHRK_GAME_ON_EN)
+
+ /************************************************
+ * Octopus sound
+ ************************************************/
+ DISCRETE_CONSTANT(BLUESHRK_OCTOPUS_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Hit sound
+ ************************************************/
+ /* the 555 trigger is connected to the cap, so when reset goes high, the 555 is triggered */
+ /* but the 555_MSTABLE does not currently allow connection of the trigger to the cap */
+ /* so we will cheat and add a pulse 1 sample wide to trigger it */
+ DISCRETE_ONESHOT(NODE_30, BLUESHRK_HIT_EN, 1, /* 1 sample wide */ 0, DISC_ONESHOT_REDGE | DISC_ONESHOT_NORETRIG | DISC_OUT_ACTIVE_LOW)
+ DISCRETE_555_MSTABLE(NODE_31, BLUESHRK_HIT_EN, NODE_30, RES_K(47), CAP_U(2.2), &blueshrk_555_H1A)
+ DISCRETE_LOGIC_INVERT(NODE_32, 1, BLUESHRK_HIT_EN)
+ DISCRETE_COUNTER(NODE_33, 1, /*RST*/ NODE_32, /*CLK*/ NODE_31, 1, DISC_COUNT_UP, 0, DISC_CLK_ON_F_EDGE)
+ DISCRETE_SWITCH(NODE_34, 1, NODE_33, CAP_U(0.015) + CAP_U(0.01), CAP_U(0.022))
+ DISCRETE_555_ASTABLE(BLUESHRK_HIT_SND, BLUESHRK_HIT_EN, RES_K(22), RES_K(39), NODE_34, &blueshrk_555_H1B)
+
+ /************************************************
+ * Shark sound
+ ************************************************/
+ DISCRETE_CONSTANT(BLUESHRK_SHARK_SND, 0) /* paceholder for incomplete sound */
+
+ /************************************************
+ * Shot sound
+ ************************************************/
+ DISCRETE_CONSTANT(BLUESHRK_SHOT_SND, 0) /* placeholder for incomplete sound */
+
+ /************************************************
+ * Combine all sound sources.
+ ************************************************/
+ DISCRETE_MIXER4(NODE_91, BLUESHRK_GAME_ON_EN, BLUESHRK_OCTOPUS_SND, BLUESHRK_HIT_SND, BLUESHRK_SHARK_SND, BLUESHRK_SHOT_SND, &blueshrk_mixer)
+
+ DISCRETE_OUTPUT(NODE_91, 1)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( blueshrk_audio )
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(blueshrk)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( blueshrk_audio_w )
+{
+ discrete_sound_w(BLUESHRK_GAME_ON_EN, (data >> 0) & 0x01);
+
+ /* discrete_sound_w(BLUESHRK_SHOT_EN, (data >> 1) & 0x01); */
+
+ discrete_sound_w(BLUESHRK_HIT_EN, (data >> 2) & 0x01);
+
+ /* discrete_sound_w(BLUESHRK_SHARK_EN, (data >> 3) & 0x01); */
+
+ /* if (data & 0x10) enable KILLED DIVER sound, this circuit
+ doesn't appear to be on the schematics */
+
+ /* discrete_sound_w(BLUESHRK_OCTOPUS_EN, (data >> 5) & 0x01); */
+
+ /* D6 and D7 are not connected */
+}
+
+
+
+/*************************************
+ *
+ * Space Invaders II (cocktail)
+ *
+ *************************************/
+
+static struct SN76477interface invad2ct_p1_sn76477_interface =
+{
+ 0, /* 4 noise_res (N/C) */
+ 0, /* 5 filter_res (N/C) */
+ 0, /* 6 filter_cap (N/C) */
+ 0, /* 7 decay_res (N/C) */
+ 0, /* 8 attack_decay_cap (N/C) */
+ RES_K(100), /* 10 attack_res */
+ RES_K(56), /* 11 amplitude_res */
+ RES_K(10), /* 12 feedback_res */
+ 0, /* 16 vco_voltage (N/C) */
+ CAP_U(0.1), /* 17 vco_cap */
+ RES_K(8.2), /* 18 vco_res */
+ 5.0, /* 19 pitch_voltage */
+ RES_K(120), /* 20 slf_res */
+ CAP_U(1.0), /* 21 slf_cap */
+ 0, /* 23 oneshot_cap (N/C) */
+ 0, /* 24 oneshot_res (N/C) */
+ 1, /* 22 vco */
+ 0, /* 26 mixer A */
+ 0, /* 25 mixer B */
+ 0, /* 27 mixer C */
+ 1, /* 1 envelope 1 */
+ 0, /* 28 envelope 2 */
+ 1 /* 9 enable (variable) */
+};
+
+
+static struct SN76477interface invad2ct_p2_sn76477_interface =
+{
+ 0, /* 4 noise_res (N/C) */
+ 0, /* 5 filter_res (N/C) */
+ 0, /* 6 filter_cap (N/C) */
+ 0, /* 7 decay_res (N/C) */
+ 0, /* 8 attack_decay_cap (N/C) */
+ RES_K(100), /* 10 attack_res */
+ RES_K(56), /* 11 amplitude_res */
+ RES_K(10), /* 12 feedback_res */
+ 0, /* 16 vco_voltage (N/C) */
+ CAP_U(0.047), /* 17 vco_cap */
+ RES_K(39), /* 18 vco_res */
+ 5.0, /* 19 pitch_voltage */
+ RES_K(120), /* 20 slf_res */
+ CAP_U(1.0), /* 21 slf_cap */
+ 0, /* 23 oneshot_cap (N/C) */
+ 0, /* 24 oneshot_res (N/C) */
+ 1, /* 22 vco */
+ 0, /* 26 mixer A */
+ 0, /* 25 mixer B */
+ 0, /* 27 mixer C */
+ 1, /* 1 envelope 1 */
+ 0, /* 28 envelope 2 */
+ 1 /* 9 enable (variable) */
+};
+
+
+static const discrete_op_amp_1sht_info invad2ct_invader_hit_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R49 */
+ RES_K(100), /* R51 */
+ RES_M(1), /* R48 */
+ RES_M(1), /* R50 */
+ RES_M(2.2), /* R52 */
+ CAP_U(0.22), /* C18 */
+ CAP_P(470), /* C20 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invad2ct_invader_hit_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP,
+ RES_M(1), /* R37 */
+ RES_K(10), /* R41 */
+ RES_K(100), /* R38 */
+ RES_K(120), /* R40 */
+ RES_M(1), /* R39 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.22), /* C16 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_1sht_info invad2ct_brd2_invader_hit_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R49 */
+ RES_K(100), /* R51 */
+ RES_M(1), /* R48 */
+ RES_M(1), /* R50 */
+ RES_M(2.2), /* R52 */
+ CAP_U(1), /* C18 */
+ CAP_P(470), /* C20 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_op_amp_osc_info invad2ct_brd2_invader_hit_osc =
+{
+ DISC_OP_AMP_OSCILLATOR_1 | DISC_OP_AMP_IS_NORTON | DISC_OP_AMP_OSCILLATOR_OUT_CAP,
+ RES_M(1), /* R37 */
+ RES_K(10), /* R41 */
+ RES_K(100), /* R38 */
+ RES_K(120), /* R40 */
+ RES_M(1), /* R39 */
+ 0, /* no r6 */
+ 0, /* no r7 */
+ 0, /* no r8 */
+ CAP_U(0.1), /* C16 */
+ 12, /* vP */
+};
+
+
+static const discrete_op_amp_1sht_info invad2ct_missle_1sht =
+{
+ DISC_OP_AMP_1SHT_1 | DISC_OP_AMP_IS_NORTON,
+ RES_M(4.7), /* R32 */
+ RES_K(100), /* R30 */
+ RES_M(1), /* R31 */
+ RES_M(1), /* R33 */
+ RES_M(2.2), /* R34 */
+ CAP_U(0.22), /* C12 */
+ CAP_P(470), /* C15 */
+ 0, /* vN */
+ 12 /* vP */
+};
+
+
+static const discrete_mixer_desc invad2ct_mixer =
+{
+ DISC_MIXER_IS_OP_AMP, /* type */
+ { RES_K(100), /* R78 */
+ RES_K(15) + 100 + 100, /* R134 + R133 + R132 */
+ RES_K(150), /* R136 */
+ RES_K(150), /* R59 */
+ RES_K(10) + RES_K(6.8) + RES_K(5.6), /* R86 + R85 + R84 */
+ RES_K(150) }, /* R28 */
+ {0}, /* no rNode{} */
+ { 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ CAP_U(0.001) }, /* C11 */
+ 0, /* no rI */
+ RES_K(100), /* R105 */
+ 0, /* no cF */
+ CAP_U(0.1), /* C45 */
+ 0, /* vRef = ground */
+ 1 /* gain */
+};
+
+
+static DISCRETE_SOUND_START(invad2ct)
+ /* sound board 1 */
+ /* P.C. A082-90700-A000 */
+ /* Schematic M051-00851-A002 */
+ INVADERS_NOISE_GENERATOR
+ INVADERS_SAUCER_HIT(1)
+ INVADERS_FLEET(1)
+ INVADERS_BONUS_MISSLE_BASE(1)
+ INVADERS_INVADER_HIT(1, invad2ct)
+ INVADERS_EXPLOSION(1)
+ INVADERS_MISSILE(1, invad2ct)
+ INVADERS_MIXER(1, invad2ct)
+
+ /* sound board 2 */
+ /* P.C. A084-90901-C851 */
+ /* Schematic M051-00851-A005 */
+ INVADERS_SAUCER_HIT(2)
+ INVADERS_FLEET(2)
+ INVADERS_BONUS_MISSLE_BASE(2)
+ INVADERS_INVADER_HIT(2, invad2ct_brd2)
+ INVADERS_EXPLOSION(2)
+ INVADERS_MISSILE(2, invaders)
+ INVADERS_MIXER(2, invaders)
+DISCRETE_SOUND_END
+
+
+MACHINE_DRIVER_START( invad2ct_audio )
+ MDRV_SPEAKER_STANDARD_STEREO("#1", "#2")
+
+ MDRV_SOUND_ADD(DISCRETE, 0)
+ MDRV_SOUND_CONFIG_DISCRETE(invad2ct)
+ MDRV_SOUND_ROUTE(0, "#1", 1.0)
+ MDRV_SOUND_ROUTE(1, "#2", 1.0)
+
+ MDRV_SOUND_ADD(SN76477, 0)
+ MDRV_SOUND_CONFIG(invad2ct_p1_sn76477_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "#1", 0.6)
+
+ MDRV_SOUND_ADD(SN76477, 0)
+ MDRV_SOUND_CONFIG(invad2ct_p2_sn76477_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "#2", 0.6)
+MACHINE_DRIVER_END
+
+
+WRITE8_HANDLER( invad2ct_audio_1_w )
+{
+ SN76477_enable_w(0, (~data >> 0) & 0x01); /* saucer sound */
+
+ discrete_sound_w(INVADERS_NODE(INVADERS_MISSILE_EN, 1), data & 0x02);
+ discrete_sound_w(INVADERS_NODE(INVADERS_EXPLOSION_EN, 1), data & 0x04);
+ discrete_sound_w(INVADERS_NODE(INVADERS_INVADER_HIT_EN, 1), data & 0x08);
+ discrete_sound_w(INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, 1), data & 0x10);
+
+ sound_global_enable(data & 0x20);
+
+ /* D6 and D7 are not connected */
+}
+
+
+WRITE8_HANDLER( invad2ct_audio_2_w )
+{
+ discrete_sound_w(INVADERS_NODE(INVADERS_FLEET_DATA, 1), data & 0x0f);
+ discrete_sound_w(INVADERS_NODE(INVADERS_SAUCER_HIT_EN, 1), data & 0x10);
+
+ /* D5-D7 are not connected */
+}
+
+
+WRITE8_HANDLER( invad2ct_audio_3_w )
+{
+ SN76477_enable_w(1, (~data >> 0) & 0x01); /* saucer sound */
+
+ discrete_sound_w(INVADERS_NODE(INVADERS_MISSILE_EN, 2), data & 0x02);
+ discrete_sound_w(INVADERS_NODE(INVADERS_EXPLOSION_EN, 2), data & 0x04);
+ discrete_sound_w(INVADERS_NODE(INVADERS_INVADER_HIT_EN, 2), data & 0x08);
+ discrete_sound_w(INVADERS_NODE(INVADERS_BONUS_MISSLE_BASE_EN, 2), data & 0x10);
+
+ /* D5-D7 are not connected */
+}
+
+
+WRITE8_HANDLER( invad2ct_audio_4_w )
+{
+ discrete_sound_w(INVADERS_NODE(INVADERS_FLEET_DATA, 2), data & 0x0f);
+ discrete_sound_w(INVADERS_NODE(INVADERS_SAUCER_HIT_EN, 2), data & 0x10);
+
+ /* D5-D7 are not connected */
+}