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oh my

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This commit is contained in:
tildearrow 2022-05-20 03:23:56 -05:00
parent 1742a0fbe5
commit 1edf697230
1 changed files with 28 additions and 0 deletions
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28
src/engine/platform/sound/namco.cpp
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@ -388,6 +388,22 @@ void namco_device::polepos_sound_w(int offset, uint8_t data)
case 0x23: case 0x23:
voice->waveform_select = data & 7; voice->waveform_select = data & 7;
// FALLTHROUGH
voice->volume[0] = voice->volume[1] = 0;
// front speakers ?
voice->volume[0] += m_soundregs[ch * 4 + 0x03] >> 4;
voice->volume[1] += m_soundregs[ch * 4 + 0x03] & 0x0f;
// rear speakers ?
voice->volume[0] += m_soundregs[ch * 4 + 0x23] >> 4;
voice->volume[1] += m_soundregs[ch * 4 + 0x02] >> 4;
voice->volume[0] /= 2;
voice->volume[1] /= 2;
/* if 54XX or 52XX selected, silence this voice */
if (m_soundregs[ch * 4 + 0x23] & 8)
voice->volume[0] = voice->volume[1] = 0;
break;
case 0x02: case 0x02:
case 0x03: case 0x03:
voice->volume[0] = voice->volume[1] = 0; voice->volume[0] = voice->volume[1] = 0;
@ -469,6 +485,12 @@ void namco_15xx_device::namco_15xx_w(int offset, uint8_t data)
case 0x06: case 0x06:
voice->waveform_select = (data >> 4) & 7; voice->waveform_select = (data >> 4) & 7;
// FALLTHROUGH
/* the frequency has 20 bits */
voice->frequency = m_soundregs[ch * 8 + 0x04];
voice->frequency += m_soundregs[ch * 8 + 0x05] << 8;
voice->frequency += (m_soundregs[ch * 8 + 0x06] & 15) << 16; /* high bits are from here */
break;
case 0x04: case 0x04:
case 0x05: case 0x05:
/* the frequency has 20 bits */ /* the frequency has 20 bits */
@ -542,6 +564,12 @@ void namco_cus30_device::namcos1_sound_w(int offset, uint8_t data)
case 0x01: case 0x01:
voice->waveform_select = (data >> 4) & 15; voice->waveform_select = (data >> 4) & 15;
// FALLTHROUGH
/* the frequency has 20 bits */
voice->frequency = (soundregs[ch * 8 + 0x01] & 15) << 16; /* high bits are from here */
voice->frequency += soundregs[ch * 8 + 0x02] << 8;
voice->frequency += soundregs[ch * 8 + 0x03];
break;
case 0x02: case 0x02:
case 0x03: case 0x03:
/* the frequency has 20 bits */ /* the frequency has 20 bits */