SourceLevelDebugPkg/DebugTimer: Timer count value 0 not calculated
Actually, TimerCycle is APIC timer's initial count. Timer count value 0 is missed when calculating Delta value. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18329 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -109,7 +109,7 @@ SaveAndSetDebugTimerInterrupt (
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/**
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Check if the timer is time out.
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@param[in] TimerCycle Timer total count.
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@param[in] TimerCycle Timer initial count.
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@param[in] Timer The start timer from the begin.
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@param[in] TimeoutTicker Ticker number need time out.
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@@ -140,7 +140,7 @@ IsDebugTimerTimeout (
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//
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// Handle one roll-over.
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//
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Delta = TimerCycle - (CurrentTimer - Timer);
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Delta = TimerCycle - (CurrentTimer - Timer) + 1;
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}
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return (BOOLEAN) (Delta >= TimeoutTicker);
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@@ -32,7 +32,7 @@ InitializeDebugTimer (
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/**
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Check if the timer is time out.
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@param[in] TimerCycle Timer total count.
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@param[in] TimerCycle Timer initial count.
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@param[in] Timer The start timer from the begin.
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@param[in] TimeoutTicker Ticker number need time out.
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