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Mockingboard: moved multi-TIMER1 support before the AY access. (#685)

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This commit is contained in:
tomcw 2019-09-05 22:03:56 +01:00
parent 11323e2aba
commit ed9ae72778
1 changed files with 13 additions and 13 deletions
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26
source/Mockingboard.cpp
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@ -394,6 +394,19 @@ static void SY6522_Write(BYTE nDevice, BYTE nReg, BYTE nValue)
break;
}
if (g_waitFirstAYWriteAfterTimer1Int) // GH#685: Multiple TIMER1 interrupts
{
g_waitFirstAYWriteAfterTimer1Int = false;
//CpuCalcCycles(uExecutedCycles); // Done in parent MB_Write() via MB_UpdateCycles()
g_AYWriteAccessTimer1IntPeriod = g_nCumulativeCycles - g_lastAY8910cycleAccess;
if (g_AYWriteAccessTimer1IntPeriod > 0xffff)
g_AYWriteAccessTimer1IntPeriod = (UINT64)g_f6522TimerPeriod_NoIRQ;
g_lastAY8910cycleAccess = g_nCumulativeCycles;
MB_Update();
}
if(g_bPhasorEnable)
{
int nAY_CS = (g_nPhasorMode & 1) ? (~(nValue >> 3) & 3) : 1;
@ -409,19 +422,6 @@ static void SY6522_Write(BYTE nDevice, BYTE nReg, BYTE nValue)
AY8910_Write(nDevice, nReg, nValue, 0);
}
if (g_waitFirstAYWriteAfterTimer1Int) // GH#685: Multiple TIMER1 interrupts
{
g_waitFirstAYWriteAfterTimer1Int = false;
//CpuCalcCycles(uExecutedCycles); // Done in parent MB_Write() via MB_UpdateCycles()
g_AYWriteAccessTimer1IntPeriod = g_nCumulativeCycles - g_lastAY8910cycleAccess;
if (g_AYWriteAccessTimer1IntPeriod > 0xffff)
g_AYWriteAccessTimer1IntPeriod = (UINT64) g_f6522TimerPeriod_NoIRQ;
g_lastAY8910cycleAccess = g_nCumulativeCycles;
MB_Update();
}
break;
}
case 0x01: // ORA