337 lines
8.5 KiB
C++
337 lines
8.5 KiB
C++
#include "stdafx.h"
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CCodeBlock::CCodeBlock(DWORD VAddrEnter, BYTE * RecompPos) :
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m_VAddrEnter(VAddrEnter),
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m_VAddrFirst(VAddrEnter),
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m_VAddrLast(VAddrEnter),
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m_CompiledLocation(RecompPos),
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m_NoOfSections(1),
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m_EnterSection(this, VAddrEnter, 1)
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{
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AnalyseBlock();
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}
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void CCodeBlock::AnalyseBlock ( void )
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{
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/*if (bLinkBlocks())
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{
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CCodeSection * Section = &ParentSection;
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if (!CreateSectionLinkage (Section)) { return false; }
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DetermineLoop(Section,CCodeSection::GetNewTestValue(),CCodeSection::GetNewTestValue(), Section->SectionID);
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while (FixConstants(Section,CCodeSection::GetNewTestValue())) {}
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}
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return true;*/
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}
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bool CCodeBlock::Compile()
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{
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CPU_Message("====== Code Block ======");
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CPU_Message("x86 code at: %X",CompiledLocation());
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CPU_Message("Start of Block: %X",VAddrEnter() );
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CPU_Message("No of Sections: %d",NoOfSections() );
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CPU_Message("====== recompiled code ======");
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EnterCodeBlock();
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#ifdef tofix
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if (bLinkBlocks()) {
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for (int count = 0; count < BlockInfo.NoOfSections; count ++) {
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DisplaySectionInformation(&BlockInfo.ParentSection,count + 1,CBlockSection::GetNewTestValue());
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}
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}
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if (m_SyncSystem) {
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//if ((DWORD)BlockInfo.CompiledLocation == 0x60A7B73B) { X86BreakPoint(__FILE__,__LINE__); }
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//MoveConstToVariable((DWORD)BlockInfo.CompiledLocation,&CurrentBlock,"CurrentBlock");
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}
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#endif
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#ifdef tofix
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if (bLinkBlocks()) {
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while (GenerateX86Code(BlockInfo,&BlockInfo.ParentSection,CBlockSection::GetNewTestValue()));
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} else {
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#endif
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if (!m_EnterSection.GenerateX86Code(m_EnterSection.m_Test + 1))
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{
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return false;
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}
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#ifdef tofix
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}
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CompileExitCode(BlockInfo);
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#endif
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return true;
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}
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CJumpInfo::CJumpInfo()
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{
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TargetPC = (DWORD)-1;
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BranchLabel = "";
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LinkLocation = NULL;
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LinkLocation2 = NULL;
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FallThrough = false;
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PermLoop = false;
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DoneDelaySlot = false;
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}
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#ifdef tofix
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bool CCodeSection::IsAllParentLoops(CCodeSection * Parent, bool IgnoreIfCompiled, DWORD Test)
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{
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if (IgnoreIfCompiled && Parent->CompiledLocation != NULL) { return true; }
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if (!InLoop) { return false; }
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if (!Parent->InLoop) { return false; }
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if (Parent->ParentSection.empty()) { return false; }
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if (this == Parent) { return true; }
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if (Parent->Test == Test) { return true; }
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Parent->Test = Test;
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for (SECTION_LIST::iterator iter = Parent->ParentSection.begin(); iter != Parent->ParentSection.end(); iter++)
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{
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CCodeSection * ParentSection = *iter;
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if (!IsAllParentLoops(ParentSection,IgnoreIfCompiled,Test)) { return false; }
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}
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return true;
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}
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void CCodeSection::UnlinkParent( CCodeSection * Parent, bool AllowDelete, bool ContinueSection )
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{
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if (this == NULL)
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{
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return;
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}
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SECTION_LIST::iterator iter = ParentSection.begin();
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while ( iter != ParentSection.end())
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{
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CCodeSection * ParentIter = *iter;
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if (ParentIter == Parent && (Parent->ContinueSection != this || Parent->JumpSection != this))
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{
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ParentSection.erase(iter);
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iter = ParentSection.begin();
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} else {
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iter++;
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}
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}
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// if (Parent->ContinueSection != Parent->JumpSection)
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// {
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// if (!ContinueSection && Parent->ContinueSection == this)
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// {
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// Notify().BreakPoint(__FILE__,__LINE__);
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// }
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// }
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if (ContinueSection && Parent->ContinueSection == this)
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{
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Parent->ContinueSection = NULL;
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}
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// if (Parent->ContinueSection != Parent->JumpSection)
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// {
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// if (ContinueSection && Parent->JumpSection == this)
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// {
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// Notify().BreakPoint(__FILE__,__LINE__);
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// }
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// }
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if (!ContinueSection && Parent->JumpSection == this)
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{
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Parent->JumpSection = NULL;
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}
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if (AllowDelete)
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{
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bool KillMe = true;
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for (SECTION_LIST::iterator iter = ParentSection.begin(); iter != ParentSection.end(); iter++)
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{
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if (!IsAllParentLoops(*iter,false,GetNewTestValue()))
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{
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KillMe = false;
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break;
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}
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}
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if (KillMe)
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{
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delete this;
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}
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}
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}
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CCodeSection::~CCodeSection ( void )
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{
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while (ParentSection.size() > 0)
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{
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CCodeSection * Parent = *ParentSection.begin();
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if (Parent->ContinueSection == this) { UnlinkParent(Parent, false, true); }
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if (Parent->JumpSection == this) { UnlinkParent(Parent, false, false); }
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}
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if (ContinueSection)
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{
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ContinueSection->UnlinkParent(this, true, true);
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if (ContinueSection)
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{
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Notify().BreakPoint(__FILE__,__LINE__);
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}
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ContinueSection = NULL;
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}
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if (JumpSection)
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{
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JumpSection->UnlinkParent(this, true, false);
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if (JumpSection)
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{
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Notify().BreakPoint(__FILE__,__LINE__);
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}
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JumpSection = NULL;
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}
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}
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DWORD CCodeSection::GetNewTestValue(void)
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{
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static DWORD LastTest = 0;
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if (LastTest == 0xFFFFFFFF) { LastTest = 0; }
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LastTest += 1;
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return LastTest;
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}
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void CCodeSection::TestRegConstantStates( CRegInfo & Base, CRegInfo & Reg )
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{
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for (int count = 0; count < 32; count++) {
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if (Reg.MipsRegState(count) != Base.MipsRegState(count)) {
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Reg.MipsRegState(count) = CRegInfo::STATE_UNKNOWN;
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}
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if (Reg.IsConst(count))
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{
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if (Reg.Is32Bit(count))
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{
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if (Reg.MipsRegLo(count) != Base.MipsRegLo(count)) {
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Reg.MipsRegState(count) = CRegInfo::STATE_UNKNOWN;
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}
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} else {
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if (Reg.MipsReg(count) != Base.MipsReg(count)) {
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Reg.MipsRegState(count) = CRegInfo::STATE_UNKNOWN;
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}
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}
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}
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}
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}
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void CCodeSection::AddParent(CCodeSection * Parent )
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{
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if (this == NULL) { return; }
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if (Parent == NULL)
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{
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RegStart.Initilize();
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RegWorking = RegStart;
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return;
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}
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// check to see if we already have the parent in the list
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for (SECTION_LIST::iterator iter = ParentSection.begin(); iter != ParentSection.end(); iter++)
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{
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if (*iter == Parent)
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{
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return;
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}
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}
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ParentSection.push_back(Parent);
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if (ParentSection.size() == 1)
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{
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if (Parent->ContinueSection == this) {
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RegStart = Parent->Cont.RegSet;
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} else if (Parent->JumpSection == this) {
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RegStart = Parent->Jump.RegSet;
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} else {
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Notify().DisplayError("How are these sections joined?????");
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}
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RegWorking = RegStart;
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} else {
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if (Parent->ContinueSection == this) {
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TestRegConstantStates(Parent->Cont.RegSet,RegStart);
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}
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if (Parent->JumpSection == this) {
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TestRegConstantStates(Parent->Jump.RegSet,RegStart);
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}
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RegWorking = RegStart;
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}
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}
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void CRegInfo::Initilize ( void )
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{
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int count;
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MIPS_RegState[0] = STATE_CONST_32;
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MIPS_RegVal[0].DW = 0;
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for (count = 1; count < 32; count ++ ) {
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MIPS_RegState[count] = STATE_UNKNOWN;
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MIPS_RegVal[count].DW = 0;
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}
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for (count = 0; count < 10; count ++ ) {
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x86reg_MappedTo[count] = NotMapped;
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x86reg_Protected[count] = false;
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x86reg_MapOrder[count] = 0;
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}
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CycleCount = 0;
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RandomModifier = 0;
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Stack_TopPos = 0;
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for (count = 0; count < 8; count ++ ) {
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x86fpu_MappedTo[count] = -1;
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x86fpu_State[count] = FPU_Unkown;
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x86fpu_RoundingModel[count] = RoundDefault;
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}
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Fpu_Used = false;
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RoundingModel = RoundUnknown;
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}
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#endif
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CRegInfo::REG_STATE CRegInfo::ConstantsType (__int64 Value)
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{
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if (((Value >> 32) == -1) && ((Value & 0x80000000) != 0)) { return STATE_CONST_32; }
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if (((Value >> 32) == 0) && ((Value & 0x80000000) == 0)) { return STATE_CONST_32; }
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return STATE_CONST_64;
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}
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bool CRegInfo::compare(const CRegInfo& right) const
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{
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int count;
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for (count = 0; count < 32; count ++ ) {
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if (MIPS_RegState[count] != right.MIPS_RegState[count])
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{
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return false;
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}
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if (MIPS_RegState[count] == STATE_UNKNOWN)
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{
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continue;
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}
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if (MIPS_RegVal[count].DW != right.MIPS_RegVal[count].DW)
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{
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return false;
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}
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}
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for (count = 0; count < 10; count ++ ) {
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if (x86reg_MappedTo[count] != right.x86reg_MappedTo[count]) { return false; }
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if (x86reg_Protected[count] != right.x86reg_Protected[count]) { return false; }
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if (x86reg_MapOrder[count] != right.x86reg_MapOrder[count]) { return false; }
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}
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if (m_CycleCount != right.m_CycleCount) { return false; }
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if (Stack_TopPos != right.Stack_TopPos) { return false; }
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for (count = 0; count < 8; count ++ ) {
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if (x86fpu_MappedTo[count] != right.x86fpu_MappedTo[count]) { return false; }
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if (x86fpu_State[count] != right.x86fpu_State[count]) { return false; }
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if (x86fpu_RoundingModel[count] != right.x86fpu_RoundingModel[count]) { return false; }
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}
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if (Fpu_Used != right.Fpu_Used) { return false; }
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if (RoundingModel != right.RoundingModel) { return false; }
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return true;
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}
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bool CRegInfo::operator!=(const CRegInfo& right) const
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{
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return !compare(right);
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}
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