diff options
Diffstat (limited to 'src/mame/audio/madalien.c')
-rw-r--r-- | src/mame/audio/madalien.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/src/mame/audio/madalien.c b/src/mame/audio/madalien.c index 8b6d71acf30..0457f374709 100644 --- a/src/mame/audio/madalien.c +++ b/src/mame/audio/madalien.c @@ -126,14 +126,14 @@ static const discrete_mixer_desc madalien_final_mix = 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, 1, 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) @@ -195,8 +195,8 @@ DISCRETE_SOUND_START( madalien ) DISCRETE_MIXER3(NODE_48, 1, NODE_21, NODE_33, NODE_41, &madalien_psg_mix) /************************************************ - * Player motor - ************************************************/ + * Player motor + ************************************************/ DISCRETE_555_ASTABLE(NODE_50, // cap is buffered by op-amp 2D. 1, // always enabled RES_K(4.7), @@ -225,8 +225,8 @@ DISCRETE_SOUND_START( madalien ) DISCRETE_COMP_ADDER(NODE_59, 1, MADALIEN_8910_PORTB_23, &madalien_effect_1b_vol_r) /************************************************ - * Enemy motor - ************************************************/ + * Enemy motor + ************************************************/ DISCRETE_CRFILTER(NODE_60, 1, MADALIEN_8910_PORTB_7, RES_K(100), CAP_U(4.7)) // 2 diodes clamp it positive. DISCRETE_CLAMP(NODE_62, 1, NODE_60, 0, 12, 0) @@ -249,8 +249,8 @@ DISCRETE_SOUND_START( madalien ) DISCRETE_DAC_R1(NODE_68, 1, 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) |