mirror of
https://github.com/libretro/ppsspp.git
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132 lines
3.6 KiB
C++
132 lines
3.6 KiB
C++
// Copyright (c) 2012- PPSSPP Project / Dolphin 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 <map>
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#include <vector>
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#include <string>
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#include "Common/CommonTypes.h"
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#include "Core/MIPS/MIPSAnalyst.h"
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#include "Core/MIPS/MIPS.h"
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#if defined(ARM)
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#include "Common/ArmEmitter.h"
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namespace ArmGen { class ARMXEmitter; }
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using namespace ArmGen;
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typedef ArmGen::ARMXCodeBlock CodeBlock;
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#elif defined(_M_IX86) || defined(_M_X64)
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#include "Common/x64Emitter.h"
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namespace Gen { class XEmitter; }
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using namespace Gen;
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typedef Gen::XCodeBlock CodeBlock;
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#elif defined(PPC)
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#include "Common/ppcEmitter.h"
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namespace PpcGen { class PPCXEmitter; }
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using namespace PpcGen;
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typedef PpcGen::PPCXCodeBlock CodeBlock;
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#else
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#error "Unsupported arch!"
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#endif
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// Define this in order to get VTune profile support for the Jit generated code.
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// Add the VTune include/lib directories to the project directories to get this to build.
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// #define USE_VTUNE
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struct JitBlock {
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bool ContainsAddress(u32 em_address);
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const u8 *checkedEntry;
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const u8 *normalEntry;
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u8 *exitPtrs[2]; // to be able to rewrite the exit jump
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u32 exitAddress[2]; // 0xFFFFFFFF == unknown
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u32 originalAddress;
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u32 originalFirstOpcode; //to be able to restore
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u16 codeSize;
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u16 originalSize;
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u16 blockNum;
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bool invalid;
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bool linkStatus[2];
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#ifdef USE_VTUNE
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char blockName[32];
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#endif
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};
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typedef void (*CompiledCode)();
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class JitBlockCache
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{
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public:
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JitBlockCache(MIPSState *mips_, CodeBlock *codeBlock);
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~JitBlockCache();
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int AllocateBlock(u32 em_address);
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void FinalizeBlock(int block_num, bool block_link);
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void Clear();
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void Init();
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void Shutdown();
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void Reset();
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bool IsFull() const;
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// Code Cache
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JitBlock *GetBlock(int block_num);
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// Fast way to get a block. Only works on the first source-cpu instruction of a block.
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int GetBlockNumberFromStartAddress(u32 em_address);
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// slower, but can get numbers from within blocks, not just the first instruction.
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// WARNING! WILL NOT WORK WITH JIT INLINING ENABLED (not yet a feature but will be soon)
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// Returns a list of block numbers - only one block can start at a particular address, but they CAN overlap.
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// This one is slow so should only be used for one-shots from the debugger UI, not for anything during runtime.
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void GetBlockNumbersFromAddress(u32 em_address, std::vector<int> *block_numbers);
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int GetBlockNumberFromEmuHackOp(u32 inst) const;
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u32 GetOriginalFirstOp(int block_num);
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// DOES NOT WORK CORRECTLY WITH JIT INLINING
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void InvalidateICache(u32 address, const u32 length);
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void DestroyBlock(int block_num, bool invalidate);
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private:
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void LinkBlockExits(int i);
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void LinkBlock(int i);
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void UnlinkBlock(int i);
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u32 GetEmuHackOpForBlock(int block_num) const;
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MIPSState *mips;
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CodeBlock *codeBlock_;
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JitBlock *blocks;
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int num_blocks;
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std::multimap<u32, int> links_to;
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std::map<std::pair<u32,u32>, u32> block_map; // (end_addr, start_addr) -> number
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enum {
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MAX_NUM_BLOCKS = 65536*2
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};
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};
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