isle-portable/LEGO1/mxtimer.cpp
Joshua Peisach 2644be3ca6
MxTimer matching (#29)
* MxTimer::Start - swap instruction order

Technically, isRunning is set after getting the real time according to the pseudo code,
which i guess is fine, you dont know it started until it really started

* MxTimer - finish tweaking to match assembly
2023-06-21 00:37:46 -07:00

42 lines
994 B
C++

#include "mxtimer.h"
#include "legoinc.h"
// 0x10101414
long MxTimer::s_LastTimeCalculated = 0;
// 0x10101418
long MxTimer::s_LastTimeTimerStarted = 0;
// OFFSET: LEGO1 0x100ae060
MxTimer::MxTimer()
{
this->m_isRunning = MX_FALSE;
m_startTime = timeGetTime();
// yeah this is somehow what the asm is
s_LastTimeCalculated = m_startTime;
}
// OFFSET: LEGO1 0x100ae160
void MxTimer::Start()
{
s_LastTimeTimerStarted = this->GetRealTime();
this->m_isRunning = MX_TRUE;
}
// OFFSET: LEGO1 0x100ae180
void MxTimer::Stop()
{
long elapsed = this->GetRealTime();
long startTime = elapsed - MxTimer::s_LastTimeTimerStarted;
this->m_isRunning = MX_FALSE;
// this feels very stupid but it's what the assembly does
this->m_startTime = this->m_startTime + startTime - 5;
}
// OFFSET: LEGO1 0x100ae140
long MxTimer::GetRealTime()
{
MxTimer::s_LastTimeCalculated = timeGetTime();
return MxTimer::s_LastTimeCalculated - this->m_startTime;
}