diff options
Diffstat (limited to 'src/mame/audio/madalien.c')
-rw-r--r-- | src/mame/audio/madalien.c | 94 |
1 files changed, 47 insertions, 47 deletions
diff --git a/src/mame/audio/madalien.c b/src/mame/audio/madalien.c index 45997f39bff..c64180a17d4 100644 --- a/src/mame/audio/madalien.c +++ b/src/mame/audio/madalien.c @@ -10,23 +10,23 @@ /* Discrete Sound Input Nodes */ /* see also "madalien.h" */ -#define MADALIEN_8910_PORTA_1 NODE_03 -#define MADALIEN_8910_PORTA_2 NODE_04 -#define MADALIEN_8910_PORTA_3 NODE_05 -#define MADALIEN_8910_PORTA_4 NODE_06 -#define MADALIEN_8910_PORTA_5 NODE_07 -#define MADALIEN_8910_PORTA_6 NODE_08 -#define MADALIEN_8910_PORTA_8 NODE_09 +#define MADALIEN_8910_PORTA_1 NODE_03 +#define MADALIEN_8910_PORTA_2 NODE_04 +#define MADALIEN_8910_PORTA_3 NODE_05 +#define MADALIEN_8910_PORTA_4 NODE_06 +#define MADALIEN_8910_PORTA_5 NODE_07 +#define MADALIEN_8910_PORTA_6 NODE_08 +#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_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_17 +#define MADALIEN_8910_PSG_A NODE_15 +#define MADALIEN_8910_PSG_B NODE_16 +#define MADALIEN_8910_PSG_C NODE_17 static const discrete_op_amp_filt_info madalien_psg_a_filter = @@ -50,7 +50,7 @@ static const discrete_555_desc madalien_555_1f = { // the 555 will clock a 74161, which counts on rising edges DISC_555_TRIGGER_IS_LOGIC | DISC_555_OUT_DC | DISC_555_OUT_COUNT_R_X, - 5.0-.5, // B+ voltage of 555 - diode drop + 5.0-.5, // B+ voltage of 555 - diode drop DEFAULT_555_VALUES }; @@ -58,14 +58,14 @@ static const discrete_555_desc madalien_555_1c = { // the 555 will clock a 74161, which counts on rising edges DISC_555_TRIGGER_IS_LOGIC | DISC_555_OUT_DC | DISC_555_OUT_COUNT_R_X, - 5, // B+ voltage of 555 + 5, // B+ voltage of 555 DEFAULT_555_VALUES }; static const discrete_555_desc madalien_555_1l = { DISC_555_TRIGGER_IS_LOGIC | DISC_555_OUT_DC | DISC_555_OUT_CAP, - 5, // B+ voltage of 555 + 5, // B+ voltage of 555 DEFAULT_555_VALUES }; @@ -121,19 +121,19 @@ static const discrete_mixer_desc madalien_final_mix = {0}, 0, RES_K(100), 0, CAP_U(1), 0, - 32768.0/DEFAULT_TTL_V_LOGIC_1 // final gain + 32768.0/DEFAULT_TTL_V_LOGIC_1 // final gain }; DISCRETE_SOUND_START( madalien ) /************************************************ - * Input register mapping - ************************************************/ + * Input register mapping + ************************************************/ DISCRETE_INPUT_DATA(MADALIEN_8910_PORTA) DISCRETE_INPUT_DATA(MADALIEN_8910_PORTB) /************************************************ - * Convert to individual bits - ************************************************/ + * Convert to individual bits + ************************************************/ // Port A is used to turn filtering on/off. // 1 - player shot, siren, music // turn bit into 4066 Ron value of 270 ohms @ 5V @@ -165,16 +165,16 @@ DISCRETE_SOUND_START( madalien ) DISCRETE_TRANSFORM3(MADALIEN_8910_PORTB_7, MADALIEN_8910_PORTB, 0x40, (DEFAULT_TTL_V_LOGIC_1 - 1) / 0x40, "01&2*") /************************************************ - * PSG input streams - ************************************************/ + * PSG input streams + ************************************************/ // AY-3-8910 PSG have a 1Vpp level DISCRETE_INPUTX_STREAM(MADALIEN_8910_PSG_A, 0, 2.0/32768, .250) DISCRETE_INPUTX_STREAM(MADALIEN_8910_PSG_B, 1, 2.0/32768, .250) DISCRETE_INPUTX_STREAM(MADALIEN_8910_PSG_C, 2, 2.0/32768, .250) /************************************************ - * AY-3-8910 filtering - ************************************************/ + * AY-3-8910 filtering + ************************************************/ // top op-amp DISCRETE_ONOFF(NODE_20, MADALIEN_8910_PORTA_2, MADALIEN_8910_PSG_A) DISCRETE_OP_AMP_FILTER(NODE_21, 1, NODE_20, 0, DISC_OP_AMP_FILTER_IS_BAND_PASS_1M, &madalien_psg_a_filter) @@ -196,10 +196,10 @@ DISCRETE_SOUND_START( madalien ) DISCRETE_MIXER3(NODE_48, 1, NODE_21, NODE_33, NODE_41, &madalien_psg_mix) /************************************************ - * Player motor - ************************************************/ - DISCRETE_555_ASTABLE(NODE_50, // cap is buffered by op-amp 2D. - 1, // always enabled + * Player motor + ************************************************/ + DISCRETE_555_ASTABLE(NODE_50, // cap is buffered by op-amp 2D. + 1, // always enabled RES_K(4.7), RES_K(22), CAP_U(2.2), @@ -207,51 +207,51 @@ DISCRETE_SOUND_START( madalien ) // The speed frequencies seem strange but the components have been GuruVerified // There is not much change in selected frequency. 99Hz, 110.6Hz, 124Hz DISCRETE_COMP_ADDER(NODE_51, MADALIEN_8910_PORTB_45, &madalien_555_1f_r_select) - DISCRETE_555_ASTABLE_CV(NODE_52, // IC 1F pin 3 out - MADALIEN_8910_PORTB_45, // enabled by gate O2 pin 13 + DISCRETE_555_ASTABLE_CV(NODE_52, // IC 1F pin 3 out + MADALIEN_8910_PORTB_45, // enabled by gate O2 pin 13 NODE_51, - RES_K(10), // per actual board + RES_K(10), // per actual board CAP_U(.22), - NODE_50, // IC 1F pin 5 in + NODE_50, // IC 1F pin 5 in &madalien_555_1f) // convert reset to active high for module use DISCRETE_LOGIC_INVERT(NODE_53, MADALIEN_8910_PORTB_45) DISCRETE_COUNTER(NODE_54, 1, - NODE_53, // pin 7 in - NODE_52, // pin 1 in - 0, 15, 1, 0, DISC_CLK_BY_COUNT) // 4-bit binary up counter + NODE_53, // pin 7 in + NODE_52, // pin 1 in + 0, 15, 1, 0, DISC_CLK_BY_COUNT) // 4-bit binary up counter DISCRETE_DAC_R1(NODE_55, NODE_54, DEFAULT_TTL_V_LOGIC_1, &madalien_effect1a_dac) DISCRETE_DAC_R1(NODE_56, NODE_54, DEFAULT_TTL_V_LOGIC_1, &madalien_effect1b_dac) DISCRETE_RCFILTER(NODE_57, NODE_56, RES_K(22)/2 + RES_K(22), CAP_U(.033)) DISCRETE_COMP_ADDER(NODE_59, MADALIEN_8910_PORTB_23, &madalien_effect_1b_vol_r) /************************************************ - * Enemy motor - ************************************************/ + * Enemy motor + ************************************************/ DISCRETE_CRFILTER(NODE_60, MADALIEN_8910_PORTB_7, RES_K(100), CAP_U(4.7)) // 2 diodes clamp it positive. DISCRETE_CLAMP(NODE_62, NODE_60, 0, 12) // the 0.047uF cap to ground just removes real world spikes. // it does not have to be simulated. DISCRETE_MIXER2(NODE_64, 1, NODE_62, 5, &madalien_555_1c_cv) - DISCRETE_555_ASTABLE_CV(NODE_65, // IC 1C pin 3 out + DISCRETE_555_ASTABLE_CV(NODE_65, // IC 1C pin 3 out MADALIEN_8910_PORTB_6, RES_K(47), RES_K(22), CAP_U(.033), - NODE_64, // IC 1C pin 5 in + NODE_64, // IC 1C pin 5 in &madalien_555_1c) // convert reset to active high for module use DISCRETE_LOGIC_INVERT(NODE_66, MADALIEN_8910_PORTB_6) DISCRETE_COUNTER(NODE_67, 1, - NODE_66, // pin 7 in - NODE_65, // pin 1 in - 0, 15, 1, 0, DISC_CLK_BY_COUNT) // 4-bit binary up counter + NODE_66, // pin 7 in + NODE_65, // pin 1 in + 0, 15, 1, 0, DISC_CLK_BY_COUNT) // 4-bit binary up counter DISCRETE_DAC_R1(NODE_68, NODE_67, DEFAULT_TTL_V_LOGIC_1, &madalien_effect2_dac) /************************************************ - * Mixer - ************************************************/ + * Mixer + ************************************************/ DISCRETE_MIXER7(NODE_90, 1, MADALIEN_8910_PSG_A, NODE_48, MADALIEN_8910_PSG_B, MADALIEN_8910_PSG_C, NODE_56, NODE_57, NODE_68, &madalien_final_mix) DISCRETE_OUTPUT(NODE_90, 1.1) |