gearmulator

commit 6fb6d096ec5ddaa7f3645eb9d740f36a59823a05
parent c85c754b081b7707603dde3adffa588181174e7c
Author: dsp56300 <dsp56300@users.noreply.github.com>
Date:   Wed, 24 Jul 2024 09:13:59 +0200

fix timing

Diffstat:
M
source/nord/n2x/n2xLib/n2xhardware.cpp
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/source/nord/n2x/n2xLib/n2xhardware.cpp b/source/nord/n2x/n2xLib/n2xhardware.cpp
@@ -199,15 +199,21 @@ namespace n2x
 		}
 
 		const auto esaiFrameIndex = m_esaiFrameIndex;
+		const auto esaiDelta = esaiFrameIndex - m_lastEsaiFrameIndex;
 
 		const auto ucClock = m_uc.getSim().getSystemClockHz();
-
 		const double ucCyclesPerFrame = static_cast<double>(ucClock) * m_samplerateInv;
 
-		const auto esaiDelta = esaiFrameIndex - m_lastEsaiFrameIndex;
+		// if the UC consumed more cycles than it was allowed to, remove them from remaining cycles
+		m_remainingUcCyclesD += static_cast<double>(m_remainingUcCycles);
 
+		// add cycles for the ESAI time that has passed
 		m_remainingUcCyclesD += ucCyclesPerFrame * static_cast<double>(esaiDelta);
+
+		// set new remaining cycle count
 		m_remainingUcCycles = static_cast<int64_t>(m_remainingUcCyclesD);
+
+		// and consume them
 		m_remainingUcCyclesD -= static_cast<double>(m_remainingUcCycles);
 
 		if(esaiDelta > g_syncHaltDspEsaiThreshold)