project64/Source/Project64-core/N64System/Recompiler/SectionInfo.cpp

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2016-01-27 09:11:59 +00:00
/****************************************************************************
* *
* Project64 - A Nintendo 64 emulator. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2012 Project64. All rights reserved. *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* *
****************************************************************************/
#include "stdafx.h"
#include "SectionInfo.h"
#include "JumpInfo.h"
CJumpInfo::CJumpInfo()
{
TargetPC = (uint32_t)-1;
JumpPC = (uint32_t)-1;
BranchLabel = "";
LinkLocation = NULL;
LinkLocation2 = NULL;
FallThrough = false;
PermLoop = false;
DoneDelaySlot = false;
ExitReason = CExitInfo::Normal;
}
#ifdef legacycode
bool CCodeSection::IsAllParentLoops(CCodeSection * Parent, bool IgnoreIfCompiled, uint32_t Test)
{
if (IgnoreIfCompiled && Parent->CompiledLocation != NULL) { return true; }
if (!InLoop) { return false; }
if (!Parent->InLoop) { return false; }
if (Parent->ParentSection.empty()) { return false; }
if (this == Parent) { return true; }
if (Parent->Test == Test) { return true; }
Parent->Test = Test;
for (SECTION_LIST::iterator iter = Parent->ParentSection.begin(); iter != Parent->ParentSection.end(); iter++)
{
CCodeSection * ParentSection = *iter;
if (!IsAllParentLoops(ParentSection,IgnoreIfCompiled,Test)) { return false; }
}
return true;
}
void CCodeSection::UnlinkParent( CCodeSection * Parent, bool AllowDelete, bool ContinueSection )
{
if (this == NULL)
{
return;
}
SECTION_LIST::iterator iter = ParentSection.begin();
while ( iter != ParentSection.end())
{
CCodeSection * ParentIter = *iter;
if (ParentIter == Parent && (Parent->ContinueSection != this || Parent->JumpSection != this))
{
ParentSection.erase(iter);
iter = ParentSection.begin();
} else {
iter++;
}
}
// if (Parent->ContinueSection != Parent->JumpSection)
// {
// if (!ContinueSection && Parent->ContinueSection == this)
// {
// g_Notify->BreakPoint(__FILE__, __LINE__);
// }
// }
if (ContinueSection && Parent->ContinueSection == this)
{
Parent->ContinueSection = NULL;
}
// if (Parent->ContinueSection != Parent->JumpSection)
// {
// if (ContinueSection && Parent->JumpSection == this)
// {
// g_Notify->BreakPoint(__FILE__, __LINE__);
// }
// }
if (!ContinueSection && Parent->JumpSection == this)
{
Parent->JumpSection = NULL;
}
if (AllowDelete)
{
bool KillMe = true;
for (SECTION_LIST::iterator iter = ParentSection.begin(); iter != ParentSection.end(); iter++)
{
if (!IsAllParentLoops(*iter,false,GetNewTestValue()))
{
KillMe = false;
break;
}
}
if (KillMe)
{
delete this;
}
}
}
CCodeSection::~CCodeSection()
{
while (ParentSection.size() > 0)
{
CCodeSection * Parent = *ParentSection.begin();
if (Parent->ContinueSection == this) { UnlinkParent(Parent, false, true); }
if (Parent->JumpSection == this) { UnlinkParent(Parent, false, false); }
}
if (ContinueSection)
{
ContinueSection->UnlinkParent(this, true, true);
if (ContinueSection)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
ContinueSection = NULL;
}
if (JumpSection)
{
JumpSection->UnlinkParent(this, true, false);
if (JumpSection)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
JumpSection = NULL;
}
}
uint32_t CCodeSection::GetNewTestValue()
{
static uint32_t LastTest = 0;
if (LastTest == 0xFFFFFFFF) { LastTest = 0; }
LastTest += 1;
return LastTest;
}
void CRegInfo::Initialize()
{
int count;
MIPS_RegState[0] = STATE_CONST_32_SIGN;
MIPS_RegVal[0].DW = 0;
for (count = 1; count < 32; count ++ ) {
MIPS_RegState[count] = STATE_UNKNOWN;
MIPS_RegVal[count].DW = 0;
}
for (count = 0; count < 10; count ++ ) {
x86reg_MappedTo[count] = NotMapped;
x86reg_Protected[count] = false;
x86reg_MapOrder[count] = 0;
}
CycleCount = 0;
RandomModifier = 0;
Stack_TopPos = 0;
for (count = 0; count < 8; count ++ ) {
x86fpu_MappedTo[count] = -1;
x86fpu_State[count] = FPU_Unkown;
x86fpu_RoundingModel[count] = RoundDefault;
}
Fpu_Used = false;
RoundingModel = RoundUnknown;
}
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#endif