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TIMER1's T1C=T1L=/usr/bin/bash000 gets interpreted as

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tomcw 2023-04-09 21:34:05 +01:00
parent 7609b5f67e
commit 3a7ff2063b
1 changed files with 3 additions and 1 deletions
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4
source/6522.cpp
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@ -110,6 +110,7 @@ USHORT SY6522::SetTimerSyncEvent(BYTE reg, USHORT timerLatch)
if (syncEvent->m_active)
g_SynchronousEventMgr.Remove(syncEvent->m_id);
if (m_isMegaAudio && timerLatch == 0x0000) timerLatch = 0xFFFF; // Probably should be 0x10000, but 0xFFFF is good enough
const UINT kMegaAudioAdjust = m_isMegaAudio ? 1 : 0; // MegaAudio asserts IRQ 1 cycle late!
syncEvent->SetCycles(timerLatch + kExtraTimerCycles + opcodeCycleAdjust + kMegaAudioAdjust);
g_SynchronousEventMgr.Insert(syncEvent);
@ -289,8 +290,9 @@ int SY6522::OnTimer1Underflow(USHORT& counter)
if (m_isMegaAudio)
{
const UINT kMegaAudioAdjust = 1; // MegaAudio asserts IRQ 1 cycle late!
const UINT timerLatch = m_regs.TIMER1_LATCH.w ? m_regs.TIMER1_LATCH.w : 0x10000; // MegaAudio: for a latch of 0x0000 use 0x10000!
while (timer < -2)
timer += (m_regs.TIMER1_LATCH.w + kExtraTimerCycles + kMegaAudioAdjust);
timer += (timerLatch + kExtraTimerCycles + kMegaAudioAdjust);
}
else
{