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Phasor: support AY READ from both AYs (#1192)

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This commit is contained in:
tomcw 2023-03-06 22:25:23 +00:00
parent f55c1abc52
commit fb37310acd
1 changed files with 9 additions and 0 deletions
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9
source/Mockingboard.cpp
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@ -290,6 +290,15 @@ void MockingboardCard::AY8910_Write(BYTE subunit, BYTE ay, BYTE value)
r6522.SetRegORA(AYReadReg(subunit, ay, pMB->nAYCurrentRegister[ay]) & (r6522.GetReg(SY6522::rDDRA) ^ 0xff));
else
r6522.UpdatePortAForHiZ();
if (m_phasorEnable && m_phasorMode == PH_Phasor) // GH#1192
{
if (ay == AY8913_DEVICE_A)
{
if (pMB->isChipSelected[AY8913_DEVICE_B] && pMB->isAYLatchedAddressValid[AY8913_DEVICE_B])
r6522.SetRegORA(r6522.GetReg(SY6522::rORA) | (AYReadReg(subunit, AY8913_DEVICE_B, pMB->nAYCurrentRegister[AY8913_DEVICE_B]) & (r6522.GetReg(SY6522::rDDRA) ^ 0xff)));
}
}
break;
case AY_WRITE: // 6: WRITE TO PSG