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Optimize UpdateTimers for when wired != 0

This commit is contained in:
LegendOfDragoon 2016-02-09 18:20:05 -08:00
parent b066192abf
commit b483b76504
1 changed files with 3 additions and 6 deletions
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9
Source/Project64-core/N64System/Mips/SystemTiming.cpp
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@ -161,12 +161,12 @@ void CSystemTimer::UpdateTimers()
int TimeTaken = m_LastUpdate - m_NextTimer; int TimeTaken = m_LastUpdate - m_NextTimer;
if (TimeTaken != 0) if (TimeTaken != 0)
{ {
uint32_t random, wired; int32_t random, wired;
m_LastUpdate = m_NextTimer; m_LastUpdate = m_NextTimer;
g_Reg->COUNT_REGISTER += TimeTaken; g_Reg->COUNT_REGISTER += TimeTaken;
random = g_Reg->RANDOM_REGISTER - (TimeTaken / g_System->CountPerOp()); random = g_Reg->RANDOM_REGISTER - (TimeTaken / g_System->CountPerOp());
wired = g_Reg->WIRED_REGISTER; wired = g_Reg->WIRED_REGISTER;
if ((int)random < (int)wired) if (random < wired)
{ {
if (wired == 0) if (wired == 0)
{ {
@ -175,10 +175,7 @@ void CSystemTimer::UpdateTimers()
else else
{ {
uint32_t increment = 32 - wired; uint32_t increment = 32 - wired;
do random += ((wired - random + increment - 1) / increment) * increment;
{
random += increment;
} while ((int)random < (int)wired);
} }
} }
g_Reg->RANDOM_REGISTER = random; g_Reg->RANDOM_REGISTER = random;