自学教程：C++ CAP_U函数代码示例

attotime ttl74123_device::compute_duration(){	double duration;	switch (m_config.m_connection_type)	{	case TTL74123_NOT_GROUNDED_NO_DIODE:		duration = 0.28 * m_config.m_res * m_config.m_cap * (1.0 + (700.0 / m_config.m_res));		break;	case TTL74123_NOT_GROUNDED_DIODE:		duration = 0.25 * m_config.m_res * m_config.m_cap * (1.0 + (700.0 / m_config.m_res));		break;	case TTL74123_GROUNDED:	default:		if (m_config.m_cap < CAP_U(0.1))		{			/* this is really a curve - a very flat one in the 0.1uF-.01uF range */			duration = 0.32 * m_config.m_res * m_config.m_cap;		}		else		{			duration = 0.33 * m_config.m_res * m_config.m_cap;		}		break;	}	return double_to_attotime(duration);}

void snk6502_sound_device::device_start(){	// adjusted	set_music_freq(43000);	// 38.99 Hz update (according to schematic)	set_music_clock(M_LN2 * (RES_K(18) * 2 + RES_K(1)) * CAP_U(1));	m_tone_stream = machine().sound().stream_alloc(*this, 0, 1, SAMPLE_RATE);	for (int i = 0; i < NUM_CHANNELS; i++)	{		save_item(NAME(m_tone_channels[i].mute), i);		save_item(NAME(m_tone_channels[i].offset), i);		save_item(NAME(m_tone_channels[i].base), i);		save_item(NAME(m_tone_channels[i].mask), i);		save_item(NAME(m_tone_channels[i].sample_step), i);		save_item(NAME(m_tone_channels[i].sample_cur), i);		save_item(NAME(m_tone_channels[i].form), i);	}	save_item(NAME(m_tone_clock));	save_item(NAME(m_sound0_stop_on_rollover));	save_item(NAME(m_hd38880_cmd));	save_item(NAME(m_hd38880_addr));	save_item(NAME(m_hd38880_data_bytes));	save_item(NAME(m_hd38880_speed));}

void sasuke_sound_device::device_reset(){	m_custom->set_music_clock(M_LN2 * (RES_K(18) + RES_K(1)) * CAP_U(1));	// adjusted (measured through audio recording of pcb)	m_custom->set_music_freq(35300);}

void TTL74123_config(int which, const TTL74123_interface *intf){	TTL74123_state *chip;	assert_always(which < MAX_TTL74123, "Exceeded maximum number of 74123 chips");	assert_always(intf, "No interface specified");	assert_always((intf->connection_type == TTL74123_GROUNDED) && (intf->cap >= CAP_U(0.01)), "Only capacitors >= 0.01uF supported for GROUNDED type");	assert_always(intf->cap >= CAP_P(1000), "Only capacitors >= 1000pF supported ");	chip = &chips[which];	chip->intf = intf;	chip->which = which;	chip->timer = timer_alloc(clear_callback, chip);	/* start with the defaults */	chip->A = intf->A;    chip->B = intf->B;	chip->clear = intf->clear;	/* register for state saving */	state_save_register_item("TTL74123", which, chip->A);	state_save_register_item("TTL74123", which, chip->B);	state_save_register_item("TTL74123", which, chip->clear);}

static attotime compute_duration(ttl74123_t *chip){	double duration;	switch (chip->intf->connection_type)	{	case TTL74123_NOT_GROUNDED_NO_DIODE:		duration = 0.28 * chip->intf->res * chip->intf->cap * (1.0 + (700.0 / chip->intf->res));		break;	case TTL74123_NOT_GROUNDED_DIODE:		duration = 0.25 * chip->intf->res * chip->intf->cap * (1.0 + (700.0 / chip->intf->res));		break;	case TTL74123_GROUNDED:	default:		if (chip->intf->cap < CAP_U(0.1))			/* this is really a curve - a very flat one in the 0.1uF-.01uF range */			duration = 0.32 * chip->intf->res * chip->intf->cap;		else			duration = 0.33 * chip->intf->res * chip->intf->cap;		break;	}	return double_to_attotime(duration);}

INPUT_PORTS_END//**************************************************************************//  MACHINE INITIALIZATION//**************************************************************************int newbrain_state::get_reset_t(){	return RES_K(220) * CAP_U(10) * 1000; // t = R128 * C125 = 2.2s}

void snk6502_sound_device::device_start(){	m_ROM = machine().root_device().memregion("snk6502")->base();	// adjusted	set_music_freq(43000);	// 38.99 Hz update (according to schematic)	set_music_clock(M_LN2 * (RES_K(18) * 2 + RES_K(1)) * CAP_U(1));	m_tone_stream = machine().sound().stream_alloc(*this, 0, 1, SAMPLE_RATE);}

void comx35_state::machine_reset(){	int t = RES_K(27) * CAP_U(1) * 1000; // t = R1 * C1	m_clear = 0;	m_iden = 1;	m_cr1 = 1;	m_ef4 = CLEAR_LINE;	m_int = CLEAR_LINE;	m_prd = CLEAR_LINE;	timer_set(attotime::from_msec(t), TIMER_ID_RESET);}

void comx35_state::machine_reset(){	int t = RES_K(27) * CAP_U(1) * 1000; // t = R1 * C1	m_clear = 0;	m_iden = 1;	m_cr1 = 1;	m_ef4 = CLEAR_LINE;	m_int = CLEAR_LINE;	m_prd = CLEAR_LINE;	m_reset_timer->adjust(attotime::from_msec(t));}

void n8080_state::spacefev_sound(machine_config &config){	MCFG_SOUND_START_OVERRIDE(n8080_state,spacefev)	MCFG_SOUND_RESET_OVERRIDE(n8080_state,spacefev)	/* basic machine hardware */	I8035(config, m_audiocpu, 6000000);	m_audiocpu->set_addrmap(AS_PROGRAM, &n8080_state::n8080_sound_cpu_map);	m_audiocpu->t0_in_cb().set(FUNC(n8080_state::n8080_8035_t0_r));	m_audiocpu->t1_in_cb().set(FUNC(n8080_state::n8080_8035_t1_r));	m_audiocpu->p1_in_cb().set(FUNC(n8080_state::n8080_8035_p1_r));	m_audiocpu->p2_out_cb().set(FUNC(n8080_state::n8080_dac_w));	TIMER(config, "vco_timer").configure_periodic(FUNC(n8080_state::spacefev_vco_voltage_timer), attotime::from_hz(1000));	/* sound hardware */	SPEAKER(config, "speaker").front_center();	DAC_1BIT(config, m_n8080_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.15);	voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));	vref.add_route(0, "n8080_dac", 1.0, DAC_VREF_POS_INPUT);	SN76477(config, m_sn);	m_sn->set_noise_params(RES_K(36), RES_K(150), CAP_N(1));	m_sn->set_decay_res(RES_M(1));	m_sn->set_attack_params(CAP_U(1.0), RES_K(20));	m_sn->set_amp_res(RES_K(150));	m_sn->set_feedback_res(RES_K(47));	m_sn->set_vco_params(0, CAP_N(1), RES_M(1.5));	m_sn->set_pitch_voltage(0);	m_sn->set_slf_params(CAP_N(47), RES_M(1));	m_sn->set_oneshot_params(CAP_N(47), RES_K(820));	m_sn->set_vco_mode(0);	m_sn->set_mixer_params(0, 0, 0);	m_sn->set_envelope_params(1, 0);	m_sn->set_enable(1);	m_sn->add_route(ALL_OUTPUTS, "speaker", 0.35);}

static TIMER_CALLBACK( schaser_effect_555_cb ){	_8080bw_state *state = machine.driver_data<_8080bw_state>();	int effect = param;	attotime new_time;	/* Toggle 555 output */	state->m_schaser_effect_555_is_low = !state->m_schaser_effect_555_is_low;	state->m_schaser_effect_555_time_remain = attotime::zero;	state->m_schaser_effect_555_time_remain_savable = state->m_schaser_effect_555_time_remain.as_double();	if (state->m_schaser_effect_555_is_low)		new_time = PERIOD_OF_555_ASTABLE(0, RES_K(20), CAP_U(1)) / 2;	else	{		if (effect)			new_time = attotime(0, ATTOSECONDS_PER_SECOND * .8873 * schaser_effect_rc[effect]);		else			new_time = attotime::never;	}	state->m_schaser_effect_555_timer->adjust(new_time, effect);	sn76477_enable_w(state->m_sn, !(state->m_schaser_effect_555_is_low || state->m_schaser_explosion));	sn76477_one_shot_cap_voltage_w(state->m_sn, !(state->m_schaser_effect_555_is_low || state->m_schaser_explosion) ? 0 : SN76477_EXTERNAL_VOLTAGE_DISCONNECT);}

static const discrete_mixer_desc ironhors_mixer_desc =	{DISC_MIXER_IS_RESISTOR,		{RES_K(2.2), RES_K(2.2), RES_K(2.2)},		{0,0,0,0,0,0},  /* no variable resistors   */		{0,0,0,0,0,0},  /* no node capacitors      */		0, RES_K(1),   /* RF */		0,		0,		0, 1};static const discrete_mixer_desc ironhors_mixer_desc_final =	{DISC_MIXER_IS_RESISTOR,		{RES_K(0.5), RES_K(1)},		{0,0,0,0,0,0},  /* no variable resistors   */		{CAP_U(4.7), CAP_U(4.7)},  /* node capacitors         */		0, RES_K(1),   /* RF */		0,		0,		0, 1};static DISCRETE_SOUND_START( ironhors )	DISCRETE_INPUTX_STREAM(NODE_01, 0, 5.0, 0)	DISCRETE_INPUTX_STREAM(NODE_02, 1, 5.0, 0)	DISCRETE_INPUTX_STREAM(NODE_03, 2, 5.0, 0)	DISCRETE_INPUTX_STREAM(NODE_04, 3, 1.0, 0)	DISCRETE_INPUT_DATA(NODE_11)	DISCRETE_INPUT_DATA(NODE_12)

	DISCRETE_TRANSFORM2(QIX_VOL_DATA_R, QIX_VOL_DATA, 0x0f, "01&")	/* Work out the parallel resistance of the selected resistors. */	DISCRETE_COMP_ADDER(NODE_10, QIX_VOL_DATA_L, &qix_attn_table)	DISCRETE_COMP_ADDER(NODE_20, QIX_VOL_DATA_R, &qix_attn_table)	/* Then use it for the resistor divider network. */	DISCRETE_TRANSFORM3(NODE_11, NODE_10, RES_K(10), QIX_DAC_DATA, "001+/2*")	DISCRETE_TRANSFORM3(NODE_21, NODE_20, RES_K(10), QIX_DAC_DATA, "001+/2*")	/* If no resistors are selected (0), then the volume is full. */	DISCRETE_SWITCH(NODE_12, 1, QIX_VOL_DATA_L, QIX_DAC_DATA, NODE_11)	DISCRETE_SWITCH(NODE_22, 1, QIX_VOL_DATA_R, QIX_DAC_DATA, NODE_21)	/* Filter the DC using the lowest case filter. */	DISCRETE_CRFILTER(NODE_13, NODE_12, RES_K(1.5), CAP_U(1))	DISCRETE_CRFILTER(NODE_23, NODE_22, RES_K(1.5), CAP_U(1))	DISCRETE_OUTPUT(NODE_13, 1)	DISCRETE_OUTPUT(NODE_23, 1)DISCRETE_SOUND_END/************************************* * *  PIA handlers * *************************************/static WRITE8_DEVICE_HANDLER( sndpia_2_warning_w )

	PORT_START("TRACKY")	PORT_BIT( 0x0f, 0, IPT_TRACKBALL_X ) PORT_SENSITIVITY(10) PORT_KEYDELTA(10)INPUT_PORTS_END/************************************* * *  Discrete Sound Blocks * *************************************/static discrete_op_amp_filt_info pokey1_info = {		RES_K(220), 0, 0, 0, /* r1 .. r4 */		RES_K(220),          /* rF */		CAP_U(0.022),        /* C1 */		CAP_U(0.1),          /* C2 */		0,                   /* C3 */		0.0,                 /* vRef */		15.0,                /* vP */		-15.0,               /* vN */};static discrete_mixer_desc quantum_mixer = {		DISC_MIXER_IS_OP_AMP, /* type */		{ RES_K(220), RES_K(220) }, /* r{} */		{},                         /* r_node */		{ CAP_U(0.1), CAP_U(0.1) }, /* c{} */		0,                          /* rI  */		RES_K(220),                 /* rF  */		0,                          /* cF  */

void prof80_state::ls259_w(int fa, int sa, int fb, int sb){	switch (sa)	{	case 0: // C0/TDI		m_rtc->data_in_w(fa);		m_rtc->c0_w(fa);		m_c0 = fa;		break;	case 1: // C1		m_rtc->c1_w(fa);		m_c1 = fa;		break;	case 2: // C2		m_rtc->c2_w(fa);		m_c2 = fa;		break;	case 3: // READY		m_fdc->ready_w(fa);		break;	case 4: // TCK		m_rtc->clk_w(fa);		break;	case 5: // IN USE		output_set_led_value(0, fa);		break;	case 6: // _MOTOR		if (fa)		{			// trigger floppy motor off NE555 timer			int t = 110 * RES_M(10) * CAP_U(6.8); // t = 1.1 * R8 * C6			timer_set(attotime::from_msec(t), TIMER_ID_MOTOR);		}		else		{			// turn on floppy motor			if(m_floppy0)				m_floppy0->mon_w(false);			if(m_floppy1)				m_floppy1->mon_w(false);			m_motor = 1;			// reset floppy motor off NE555 timer			timer_set(attotime::never, TIMER_ID_MOTOR);		}		break;	case 7: // SELECT		break;	}	switch (sb)	{	case 0: // RESF		if (fb) m_fdc->reset();		break;	case 1: // MINI		break;	case 2: // _RTS		break;	case 3: // TX		break;	case 4: // _MSTOP		if (!fb)		{			// immediately turn off floppy motor			synchronize(TIMER_ID_MOTOR);		}		break;	case 5: // TXP		break;	case 6: // TSTB		m_rtc->stb_w(fb);		break;	case 7: // MME		//logerror("INIT %u/n", fb);		m_init = fb;		bankswitch();		break;	}}

static const discrete_555_cc_desc frogsZip555cc ={	DISC_555_OUT_CAP | DISC_555_OUT_DC,	12,		// B+ voltage of 555	DEFAULT_555_VALUES,	12,		// B+ voltage of the Constant Current source	0.6		// Q13 Vbe};static const discrete_mixer_desc frogsMixer ={	DISC_MIXER_IS_OP_AMP,	{RES_K(1), RES_K(5)},	{FROGS_R93, 0},	{CAP_U(0.01), CAP_U(0.01)},	0, RES_K(56), 0, CAP_U(0.1), 0, 10000};DISCRETE_SOUND_START(frogs_discrete_interface)	/************************************************     * Input register mapping for frogs     *     * All inputs are inverted by initial transistor.     ************************************************/	DISCRETE_INPUT_LOGIC(FROGS_FLY_EN)	DISCRETE_INPUT_NOT(FROGS_JUMP_EN)	DISCRETE_INPUT_NOT(FROGS_HOP_EN)	DISCRETE_INPUT_NOT(FROGS_TONGUE_EN)	DISCRETE_INPUT_NOT(FROGS_CAPTURE_EN)	DISCRETE_INPUT_NOT(FROGS_SPLASH_EN)

#define MADALIEN_8910_PORTA_8       NODE_09#define MADALIEN_8910_PORTB_1       NODE_10#define MADALIEN_8910_PORTB_23      NODE_11#define MADALIEN_8910_PORTB_45      NODE_12#define MADALIEN_8910_PORTB_6       NODE_13#define MADALIEN_8910_PORTB_7       NODE_14#define MADALIEN_8910_PSG_A         NODE_15#define MADALIEN_8910_PSG_B         NODE_16#define MADALIEN_8910_PSG_C         NODE_17static const discrete_op_amp_filt_info madalien_psg_a_filter ={	RES_K(1)+ 270, 0, RES_K(10), 0, RES_K(100), CAP_U(.1), CAP_U(.1), 0, 0, 5, -5};static const discrete_op_amp_filt_info madalien_psg_c_filter ={	RES_K(1)+ 270, 0, RES_K(10), 0, RES_K(100), CAP_U(.068), CAP_U(.068), 0, 0, 5, -5};static const discrete_mixer_desc madalien_psg_mix ={	DISC_MIXER_IS_RESISTOR,	{RES_K(10), RES_K(10), RES_K(10)},	{0}, {0}, 0, 0, 0, 0, 0, 1};static const discrete_555_desc madalien_555_1f =

static const discrete_dac_r1_ladder osi600_dac ={	4,          // size of ladder	{ 180, 180, 180, 180, 0, 0, 0, 0 }, // R68, R69, R70, R71	5,          // 5V	RES_K(1),   // R67	0,          // no rGnd	0           // no cFilter};static DISCRETE_SOUND_START( osi600_discrete_interface )	DISCRETE_INPUT_DATA(NODE_01)	DISCRETE_DAC_R1(NODE_02, NODE_01, DEFAULT_TTL_V_LOGIC_1, &osi600_dac)	DISCRETE_CRFILTER(NODE_03, NODE_02, (int)(1.0/(1.0/RES_K(1)+1.0/180+1.0/180+1.0/180+1.0/180)), CAP_U(0.1))	DISCRETE_OUTPUT(NODE_03, 100)	DISCRETE_GAIN(NODE_04, NODE_03, 32767.0/5)	DISCRETE_OUTPUT(NODE_04, 100)DISCRETE_SOUND_END#if 0static const discrete_dac_r1_ladder osi600c_dac ={	8,          // size of ladder	{ RES_K(68), RES_K(33), RES_K(16), RES_K(8.2), RES_K(3.9), RES_K(2), RES_K(1), 510 }, // R73, R71, R70, R67, R68, R69, R75, R74	5,          // 5V	510,        // R86	0,          // no rGnd	CAP_U(33)   // C63};

static MACHINE_DRIVER_START( nitedrvr )	/* driver data */	MDRV_DRIVER_DATA(nitedrvr_state)	/* basic machine hardware */	MDRV_CPU_ADD("maincpu", M6502, XTAL_12_096MHz/12) // 1 MHz	MDRV_CPU_PROGRAM_MAP(nitedrvr_map)	MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)	MDRV_WATCHDOG_VBLANK_INIT(3)	MDRV_MACHINE_START(nitedrvr)	MDRV_MACHINE_RESET(nitedrvr)	MDRV_TIMER_ADD_PERIODIC("crash_timer", nitedrvr_crash_toggle_callback, NSEC(PERIOD_OF_555_ASTABLE_NSEC(RES_K(180), 330, CAP_U(1))))	/* video hardware */	MDRV_SCREEN_ADD("screen", RASTER)	MDRV_SCREEN_REFRESH_RATE(57) // how is this derived?	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)	MDRV_SCREEN_SIZE(32*8, 32*8)	MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)	MDRV_GFXDECODE(nitedrvr)	MDRV_PALETTE_LENGTH(2)	MDRV_PALETTE_INIT(black_and_white)	MDRV_VIDEO_START(nitedrvr)	MDRV_VIDEO_UPDATE(nitedrvr)

{	AY8910_DISCRETE_OUTPUT,	{ RES_K(3.3), RES_K(3.3), RES_K(3.3) },	DEVCB_NULL,	DEVCB_NULL,	DEVCB_NULL,	DEVCB_NULL};static const discrete_mixer_desc konami_right_mixer_desc =	{DISC_MIXER_IS_RESISTOR,		{RES_K(2.2), RES_K(2.2), RES_K(2.2), RES_K(3.3)/3, RES_K(3.3)/3 },		{0,0,0,0,0,0},	/* no variable resistors   */		{0,0,0,0,0,0},  /* no node capacitors      */		0, 200,		CAP_U(0.1),		CAP_U(1),		/* DC - Removal, not in schematics */		0, 1};static const discrete_mixer_desc konami_left_mixer_desc =	{DISC_MIXER_IS_RESISTOR,	{RES_K(2.2), RES_K(2.2), RES_K(2.2), RES_K(3.3)/3, RES_K(4.7) },	{0,0,0,0,0,0},	/* no variable resistors   */	{0,0,0,0,0,0},  /* no node capacitors      */	0, 200,	CAP_U(0.1),	CAP_U(1),		/* DC - Removal, not in schematics */	0, 1};static DISCRETE_SOUND_START( gyruss_sound )

	  RES_K(22), 	/* R12 */	  RES_K(10)},	/* R11 */	0, 0, 0, 0		/* nothing extra */};/*                         R39           R38          R39 */#define BOSCO_VREF (5.0 * (RES_K(2.2) / (RES_K(3.3) + RES_K(2.2))))static const discrete_op_amp_filt_info bosco_chanl1_filt ={	BOSCO_54XX_DAC_R + RES_K(100),	/* R24 */	0,					/* no second input */	RES_K(22),			/* R23 */	0,					/* not used */	RES_K(220),			/* R22 */	CAP_U(0.001),		/* C31 */	CAP_U(0.001),		/* C30 */	0,					/* not used */	BOSCO_VREF,			/* vRef */	5,					/* vP */	0					/* vN */};static const discrete_op_amp_filt_info bosco_chanl2_filt ={	BOSCO_54XX_DAC_R + RES_K(47),	/* R33 */	0,					/* no second input */	RES_K(10),			/* R34 */	0,					/* not used */	RES_K(150),			/* R35 */	CAP_U(0.01),		/* C29 */

	14,			/* Use Bit 14 as XOR input 1 */	DISC_LFSR_XNOR,		/* Feedback stage1 is XNOR */	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 already inverted by XNOR */	16			/* Output bit is feedback bit */};static const discrete_dac_r1_ladder atarifb_crowd_r1_ladder ={	4,	{RES_K(390), RES_K(220), RES_K(100), RES_K(56)},	// r17, r16, r14, r15	0, 0,		// no bias	0,			// no rGnd	CAP_U(0.1)	// c32};static const discrete_op_amp_filt_info atarifb_crowd_filt ={	1.0/(1.0/RES_K(390) + 1.0/RES_K(220) + 1.0/RES_K(100) + 1.0/RES_K(56)),	// r17, r16, r14, r15	0, 0, 0,	RES_K(330),	// r35	CAP_U(.01),	// c33	CAP_U(.01),	// c44	0,	5, 12, 0};static const discrete_mixer_desc atarifb_mixer ={

/*******************************************************//*                                                     *//* Taito "Balloon Bomber"                              *//*   The sounds are not the correct ones               *//*                                                     *//*******************************************************//************************************* * *  Discrete Sound * (copied from indianbt) * *************************************/static const discrete_dac_r1_ladder ballbomb_music_dac =	{3, {0, RES_K(47), RES_K(12)}, 0, 0, 0, CAP_U(0.1)};#define BALLBOMB_MUSIC_CLK      (3993.6*2*2*2)/* Nodes - Inputs */#define BALLBOMB_MUSIC_DATA     NODE_01/* Nodes - Sounds */#define BALLBOMB_MUSIC          NODE_11DISCRETE_SOUND_START(ballbomb)	DISCRETE_INPUT_DATA (BALLBOMB_MUSIC_DATA)/****************************************************************************** * * Music Generator

	//----------------------------------------------------------------	// Startup / Antenna latch	//----------------------------------------------------------------	TTL_INPUT(antenna, 0)	DIODE(CR3, "1N914")	DIODE(CR4, "1N914")	DIODE(CR5, "1N914")	DIODE(CR7, "1N914")	QBJT_EB(Q1, "2N3644")	QBJT_EB(Q2, "2N3643")	QBJT_EB(Q3, "2N3643")	CAP(C19, CAP_U(0.1))	CAP(C16, CAP_U(0.1))	RES(R25, 100)	RES(R26, 330)	RES(R27, 100)	RES(R31, 220)	RES(R32, 100)	NET_C(GND, CR5.A, Q2.E, C16.2, R25.2, Q3.E)	NET_C(CR5.K, Q2.B, antenna)	NET_C(Q2.C, C16.1, R25.1, Q3.B, R27.2)	NET_C(R27.1, CR7.A, R31.2)  //CR7.K == IN	NET_C(R31.1, Q1.C)	NET_C(Q3.C, R26.2, CR3.A, CR4.A, E9.5) // E9.6 = Q Q3.C=QQ CR3.K = COIN*1 CR4.K = COIN*2	NET_C(R26.1, Q1.B, C19.2, R32.2)

};static const discrete_555_cc_desc frogsZip555cc ={	DISC_555_OUT_CAP | DISC_555_OUT_DC,	12,     // B+ voltage of 555	DEFAULT_555_VALUES,	0.6     // Q13 Vbe};static const discrete_mixer_desc frogsMixer ={	DISC_MIXER_IS_OP_AMP,	{RES_K(1), RES_K(5)},	{FROGS_R93, 0},	{CAP_U(0.01), CAP_U(0.01)},	0, RES_K(56), 0, CAP_U(0.1), 0, 10000};static DISCRETE_SOUND_START(frogs)	/************************************************	 * Input register mapping for frogs	 *	 * All inputs are inverted by initial transistor.	 ************************************************/	DISCRETE_INPUT_LOGIC(FROGS_FLY_EN)	DISCRETE_INPUT_NOT(FROGS_JUMP_EN)	DISCRETE_INPUT_NOT(FROGS_HOP_EN)	DISCRETE_INPUT_NOT(FROGS_TONGUE_EN)	DISCRETE_INPUT_NOT(FROGS_CAPTURE_EN)	DISCRETE_INPUT_NOT(FROGS_SPLASH_EN)

	1,	{RES_K(10)},    // R29	5,              // 555 Vcc	RES_K(5),       // 555 internal	RES_K(10),      // 555 internal	CAP_N(100)      // C100};static const discrete_dac_r1_ladder spiders_web_exp_dac ={	1,	{RES_K(10)},    // R44	5,              // 555 Vcc	RES_K((5*2.2)/(5+2.2)),     // 555 internal (5k) // R49 (2.2k)	RES_K(10),      // 555 internal	CAP_U(0.01)     // C25};// IC 10static const discrete_555_desc spiders_fire_555a ={	DISC_555_OUT_SQW | DISC_555_OUT_DC,	5,      // B+ voltage of 555	DEFAULT_555_VALUES};static const discrete_555_desc spiders_super_web_555a ={	DISC_555_OUT_CAP | DISC_555_OUT_DC,	5,      // B+ voltage of 555

static struct AY8910interface ay8910_interface ={    0,    0,    stratvox_sn76477_w,  /* SN76477 commands (not used in Route 16?) */    0};static struct SN76477interface sn76477_interface ={    RES_K( 47)   ,		/*  4  noise_res         */    RES_K(150)   ,		/*  5  filter_res        */    CAP_U(0.001) ,		/*  6  filter_cap        */    RES_M(3.3)   ,		/*  7  decay_res         */    CAP_U(1.0)   ,		/*  8  attack_decay_cap  */    RES_K(4.7)   ,		/* 10  attack_res        */    RES_K(200)   ,		/* 11  amplitude_res     */    RES_K( 55)   ,		/* 12  feedback_res      */    5.0*2/(2+10) ,		/* 16  vco_voltage       */    CAP_U(0.022) ,		/* 17  vco_cap           */    RES_K(100)   ,		/* 18  vco_res           */    5.0		   ,		/* 19  pitch_voltage     */    RES_K( 75)   ,		/* 20  slf_res           */    CAP_U(1.0)   ,		/* 21  slf_cap           */    CAP_U(2.2)   ,		/* 23  oneshot_cap       */    RES_K(4.7)   		/* 24  oneshot_res       */};