358 lines
9.9 KiB
C++
358 lines
9.9 KiB
C++
/****************************************************************************
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* *
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* Project 64 - A Nintendo 64 emulator. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2012 Project64. All rights reserved. *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* *
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****************************************************************************/
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#include "stdafx.h"
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CSystemTimer::CSystemTimer( int & NextTimer ) :
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m_NextTimer(NextTimer),
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m_inFixTimer(false)
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{
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}
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void CSystemTimer::Reset ( void )
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{
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//initialise Structure
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for (int i = 0; i < MaxTimer; i++)
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{
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m_TimerDetatils[i].Active = false;
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m_TimerDetatils[i].CyclesToTimer = 0;
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}
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m_Current = UnknownTimer;
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m_LastUpdate = 0;
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m_NextTimer = 0;
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SetTimer(ViTimer,50000,false);
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SetCompareTimer();
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}
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void CSystemTimer::SetTimer ( TimerType Type, DWORD Cycles, bool bRelative )
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{
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if (Type >= MaxTimer || Type == UnknownTimer)
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{
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g_Notify->BreakPoint(__FILE__,__LINE__);
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return;
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}
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UpdateTimers();
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m_TimerDetatils[Type].Active = true;
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if (bRelative)
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{
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if (m_TimerDetatils[Type].Active)
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{
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m_TimerDetatils[Type].CyclesToTimer += Cycles; //Add to the timer
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} else {
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m_TimerDetatils[Type].CyclesToTimer = (__int64)Cycles - (__int64)m_NextTimer; //replace the new cycles
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}
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} else {
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m_TimerDetatils[Type].CyclesToTimer = (__int64)Cycles - (__int64)m_NextTimer; //replace the new cycles
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}
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FixTimers();
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}
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DWORD CSystemTimer::GetTimer ( TimerType Type )
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{
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if (Type >= MaxTimer || Type == UnknownTimer)
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{
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g_Notify->BreakPoint(__FILE__,__LINE__);
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return 0;
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}
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if (!m_TimerDetatils[Type].Active)
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{
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return 0;
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}
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__int64 CyclesToTimer = m_TimerDetatils[Type].CyclesToTimer + m_NextTimer;
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if (CyclesToTimer < 0)
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{
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return 0;
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}
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if (CyclesToTimer > 0x7FFFFFFF)
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{
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return 0x7FFFFFFF;
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}
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return (DWORD)CyclesToTimer;
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}
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void CSystemTimer::StopTimer ( TimerType Type )
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{
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if (Type >= MaxTimer || Type == UnknownTimer)
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{
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g_Notify->BreakPoint(__FILE__,__LINE__);
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return;
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}
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m_TimerDetatils[Type].Active = false;
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FixTimers();
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}
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void CSystemTimer::FixTimers (void)
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{
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if (m_inFixTimer)
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{
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return;
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}
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m_inFixTimer = true;
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UpdateTimers();
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if (GetTimer(CompareTimer) > 0x60000000)
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{
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SetCompareTimer();
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}
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//Update the cycles for the remaining number of cycles to timer
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int count;
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for (count = 0; count < MaxTimer; count++)
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{
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if (!m_TimerDetatils[count].Active)
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{
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continue;
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}
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m_TimerDetatils[count].CyclesToTimer += m_NextTimer;
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}
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//Set Max timer
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m_NextTimer = 0x7FFFFFFF;
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//Find the smallest timer left to go
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for (count = 0; count < MaxTimer; count++)
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{
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if (!m_TimerDetatils[count].Active)
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{
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continue;
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}
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if (m_TimerDetatils[count].CyclesToTimer >= m_NextTimer)
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{
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continue;
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}
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m_NextTimer = (int)m_TimerDetatils[count].CyclesToTimer;
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m_Current = (TimerType)count;
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}
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//Move the timer back this value
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for (count = 0; count < MaxTimer; count++)
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{
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if (!m_TimerDetatils[count].Active)
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{
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continue;
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}
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m_TimerDetatils[count].CyclesToTimer -= m_NextTimer;
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}
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m_LastUpdate = m_NextTimer;
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m_inFixTimer = false;
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}
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void CSystemTimer::UpdateTimers ( void )
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{
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int TimeTaken = m_LastUpdate - m_NextTimer;
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if (TimeTaken != 0)
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{
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m_LastUpdate = m_NextTimer;
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g_Reg->COUNT_REGISTER += TimeTaken;
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g_Reg->RANDOM_REGISTER -= TimeTaken / g_System->CountPerOp();
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while ((int)g_Reg->RANDOM_REGISTER < (int)g_Reg->WIRED_REGISTER)
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{
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g_Reg->RANDOM_REGISTER += 32 - g_Reg->WIRED_REGISTER;
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}
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}
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}
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void CSystemTimer::TimerDone (void)
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{
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UpdateTimers();
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/* DWORD LastTimer;
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if (Profiling) {
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LastTimer = StartTimer(Timer_Done);
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}
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if (LogOptions.GenerateLog && LogOptions.LogExceptions && !LogOptions.NoInterrupts) {
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LogMessage("%08X: Timer Done (Type: %d CurrentTimer: %d)", *_PROGRAM_COUNTER, m_Current, *_Timer );
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}
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*/
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switch (m_Current) {
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case CSystemTimer::CompareTimer:
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g_Reg->FAKE_CAUSE_REGISTER |= CAUSE_IP7;
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g_Reg->CheckInterrupts();
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UpdateCompareTimer();
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break;
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case CSystemTimer::SoftResetTimer:
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g_SystemTimer->StopTimer(CSystemTimer::SoftResetTimer);
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g_System->ExternalEvent(SysEvent_ResetCPU_SoftDone);
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break;
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case CSystemTimer::SiTimer:
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g_SystemTimer->StopTimer(CSystemTimer::SiTimer);
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g_Reg->MI_INTR_REG |= MI_INTR_SI;
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g_Reg->SI_STATUS_REG |= SI_STATUS_INTERRUPT;
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g_Reg->CheckInterrupts();
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break;
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case CSystemTimer::PiTimer:
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g_SystemTimer->StopTimer(CSystemTimer::PiTimer);
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g_Reg->PI_STATUS_REG &= ~PI_STATUS_DMA_BUSY;
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g_Reg->MI_INTR_REG |= MI_INTR_PI;
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g_Reg->CheckInterrupts();
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break;
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case CSystemTimer::ViTimer:
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try
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{
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g_System->RefreshScreen();
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}
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catch (...)
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{
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WriteTraceF(TraceError,__FUNCTION__ ": Exception caught\nFile: %s\nLine: %d",__FILE__,__LINE__);
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}
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g_Reg->MI_INTR_REG |= MI_INTR_VI;
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g_Reg->CheckInterrupts();
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break;
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case CSystemTimer::RspTimer:
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g_SystemTimer->StopTimer(CSystemTimer::RspTimer);
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try {
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g_System->RunRSP();
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} catch (...) {
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g_Notify->BreakPoint(__FILE__,__LINE__);
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}
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break;
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case CSystemTimer::RSPTimerDlist:
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g_SystemTimer->StopTimer(CSystemTimer::RSPTimerDlist);
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g_Reg->m_GfxIntrReg |= MI_INTR_DP;
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g_Reg->CheckInterrupts();
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break;
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case CSystemTimer::AiTimerInterrupt:
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g_SystemTimer->StopTimer(CSystemTimer::AiTimerInterrupt);
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g_Audio->InterruptTimerDone();
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break;
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case CSystemTimer::AiTimerBusy:
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g_SystemTimer->StopTimer(CSystemTimer::AiTimerBusy);
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g_Audio->BusyTimerDone();
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break;
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default:
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g_Notify->BreakPoint(__FILE__,__LINE__);
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}
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//CheckTimer();
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/*if (Profiling) {
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StartTimer(LastTimer);
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}*/
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}
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void CSystemTimer::SetCompareTimer ( void )
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{
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DWORD NextCompare = 0x7FFFFFFF;
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if (g_Reg)
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{
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NextCompare = g_Reg->COMPARE_REGISTER - g_Reg->COUNT_REGISTER;
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if ((NextCompare & 0x80000000) != 0)
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{
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NextCompare = 0x7FFFFFFF;
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}
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}
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SetTimer(CompareTimer,NextCompare,false);
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}
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void CSystemTimer::UpdateCompareTimer ( void )
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{
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SetCompareTimer();
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}
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bool CSystemTimer::SaveAllowed ( void )
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{
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if (GetTimer(CompareTimer) <= 0)
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{
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return false;
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}
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for (int i = 0; i < MaxTimer; i++)
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{
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if (i == CompareTimer) { continue; }
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if (i == ViTimer) { continue; }
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if (m_TimerDetatils[i].Active)
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{
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return false;
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}
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}
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return true;
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}
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void CSystemTimer::SaveData ( void * file ) const
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{
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DWORD TimerDetailsSize = sizeof(TIMER_DETAILS);
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DWORD Entries = sizeof(m_TimerDetatils)/sizeof(m_TimerDetatils[0]);
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zipWriteInFileInZip(file,&TimerDetailsSize,sizeof(TimerDetailsSize));
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zipWriteInFileInZip(file,&Entries,sizeof(Entries));
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zipWriteInFileInZip(file,(void *)&m_TimerDetatils,sizeof(m_TimerDetatils));
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zipWriteInFileInZip(file,(void *)&m_LastUpdate,sizeof(m_LastUpdate));
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zipWriteInFileInZip(file,&m_NextTimer,sizeof(m_NextTimer));
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zipWriteInFileInZip(file,(void *)&m_Current,sizeof(m_Current));
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}
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void CSystemTimer::LoadData ( void * file )
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{
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DWORD TimerDetailsSize, Entries;
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unzReadCurrentFile( file,&TimerDetailsSize,sizeof(TimerDetailsSize));
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unzReadCurrentFile( file,&Entries,sizeof(Entries));
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if (TimerDetailsSize != sizeof(TIMER_DETAILS)) { g_Notify->BreakPoint(__FILE__,__LINE__); return; }
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if (Entries != sizeof(m_TimerDetatils)/sizeof(m_TimerDetatils[0])) { g_Notify->BreakPoint(__FILE__,__LINE__); return; }
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unzReadCurrentFile(file,(void *)&m_TimerDetatils,sizeof(m_TimerDetatils));
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unzReadCurrentFile(file,(void *)&m_LastUpdate,sizeof(m_LastUpdate));
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unzReadCurrentFile(file,&m_NextTimer,sizeof(m_NextTimer));
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unzReadCurrentFile(file,(void *)&m_Current,sizeof(m_Current));
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}
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void CSystemTimer::RecordDifference( CLog &LogFile, const CSystemTimer& rSystemTimer)
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{
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if (m_LastUpdate != rSystemTimer.m_LastUpdate)
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{
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LogFile.LogF("Timer-LastUpdate: %X %X\r\n",m_LastUpdate,rSystemTimer.m_LastUpdate);
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}
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if (m_NextTimer != rSystemTimer.m_NextTimer)
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{
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LogFile.LogF("Timer-NextTimer: %X %X\r\n",m_NextTimer,rSystemTimer.m_NextTimer);
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}
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if (m_Current != rSystemTimer.m_Current)
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{
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LogFile.LogF("Timer-Current %X %X\r\n",m_Current,rSystemTimer.m_Current);
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}
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if (m_inFixTimer != rSystemTimer.m_inFixTimer)
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{
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LogFile.LogF("Timer-inFixTimer %X %X\r\n",(int)m_inFixTimer,(int)rSystemTimer.m_inFixTimer);
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}
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for (int i = 0; i < MaxTimer; i++)
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{
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if (m_TimerDetatils[i].Active != rSystemTimer.m_TimerDetatils[i].Active)
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{
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LogFile.LogF("Timer-m_TimerDetatils[%d] %X %X\r\n",i,(int)m_TimerDetatils[i].Active,(int)rSystemTimer.m_TimerDetatils[i].Active);
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}
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if (m_TimerDetatils[i].CyclesToTimer != rSystemTimer.m_TimerDetatils[i].CyclesToTimer)
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{
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LogFile.LogF("Timer-m_TimerDetatils[%d] 0x%08X, 0x%08X\r\n",i,(DWORD)m_TimerDetatils[i].CyclesToTimer,(DWORD)rSystemTimer.m_TimerDetatils[i].CyclesToTimer );
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}
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}
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}
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bool CSystemTimer::operator == (const CSystemTimer& rSystemTimer) const
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{
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if (m_LastUpdate != rSystemTimer.m_LastUpdate) { return false; }
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if (m_NextTimer != rSystemTimer.m_NextTimer) { return false; }
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if (m_Current != rSystemTimer.m_Current) { return false; }
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if (m_inFixTimer != rSystemTimer.m_inFixTimer) { return false; }
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for (int i = 0; i < MaxTimer; i++)
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{
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if (m_TimerDetatils[i].Active != rSystemTimer.m_TimerDetatils[i].Active) { return false; }
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if (m_TimerDetatils[i].CyclesToTimer != rSystemTimer.m_TimerDetatils[i].CyclesToTimer) { return false; }
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}
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return true;
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}
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bool CSystemTimer::operator != (const CSystemTimer& rSystemTimer) const
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{
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return !(*this == rSystemTimer);
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}
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