mirror of
https://github.com/hrydgard/ppsspp.git
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117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#pragma once
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#include "Globals.h"
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#include "Core/MIPS/MIPS.h"
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class DebugInterface;
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namespace MIPSAnalyst
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{
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void Analyze(u32 address);
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struct RegisterAnalysisResults {
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bool used;
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int firstRead;
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int lastRead;
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int firstWrite;
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int lastWrite;
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int firstReadAsAddr;
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int lastReadAsAddr;
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int readCount;
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int writeCount;
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int readAsAddrCount;
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int TotalReadCount() {return readCount + readAsAddrCount;}
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int FirstRead() {return firstReadAsAddr < firstRead ? firstReadAsAddr : firstRead;}
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int LastRead() {return lastReadAsAddr > lastRead ? lastReadAsAddr : lastRead;}
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void MarkRead(u32 addr) {
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if (firstRead == -1)
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firstRead = addr;
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lastRead = addr;
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readCount++;
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used = true;
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}
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void MarkReadAsAddr(u32 addr) {
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if (firstReadAsAddr == -1)
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firstReadAsAddr = addr;
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lastReadAsAddr = addr;
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readAsAddrCount++;
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used = true;
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}
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void MarkWrite(u32 addr) {
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if (firstWrite == -1)
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firstWrite = addr;
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lastWrite = addr;
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writeCount++;
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used = true;
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}
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};
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struct AnalysisResults
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{
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int x;
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};
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bool IsRegisterUsed(u32 reg, u32 addr);
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void ScanForFunctions(u32 startAddr, u32 endAddr);
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void CompileLeafs();
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std::vector<int> GetInputRegs(MIPSOpcode op);
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std::vector<int> GetOutputRegs(MIPSOpcode op);
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int GetOutGPReg(MIPSOpcode op);
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bool ReadsFromGPReg(MIPSOpcode op, u32 reg);
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bool IsDelaySlotNiceReg(MIPSOpcode branchOp, MIPSOpcode op, int reg1, int reg2 = 0);
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bool IsDelaySlotNiceVFPU(MIPSOpcode branchOp, MIPSOpcode op);
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bool IsDelaySlotNiceFPU(MIPSOpcode branchOp, MIPSOpcode op);
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bool IsSyscall(MIPSOpcode op);
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void Shutdown();
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typedef struct
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{
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DebugInterface* cpu;
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u32 opcodeAddress;
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MIPSOpcode encodedOpcode;
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// shared between branches and conditional moves
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bool isConditional;
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bool conditionMet;
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// branches
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u32 branchTarget;
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bool isBranch;
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bool isLinkedBranch;
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bool isLikelyBranch;
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bool isBranchToRegister;
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int branchRegisterNum;
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// data access
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bool isDataAccess;
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int dataSize;
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u32 dataAddress;
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} MipsOpcodeInfo;
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MipsOpcodeInfo GetOpcodeInfo(DebugInterface* cpu, u32 address);
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} // namespace MIPSAnalyst
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