mirror of
https://github.com/hrydgard/ppsspp.git
synced 2025-04-02 11:01:50 -04:00
41f5abab31
Now builds on Playbook and Dev Alpha Make emulator more compatible with other OS (case sensitivity, defines, includes) Uses Android's code paths and backend
81 lines
2.2 KiB
C++
81 lines
2.2 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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#ifndef _JIT64ASM_H
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#define _JIT64ASM_H
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#include <ArmEmitter.h>
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#include "../MIPS.h"
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// In PPSSPP, we don't use inline assembly. Instead, we generate all machine-near
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// code at runtime. In the case of fixed code like this, after writing it, we write
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// protect the memory, essentially making it work just like precompiled code.
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// There are some advantages to this approach:
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// 1) No need to setup an external assembler in the build.
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// 2) Cross platform, as long as it's x86/x64.
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// 3) Can optimize code at runtime for the specific CPU model.
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// There aren't really any disadvantages other than having to maintain code emitters,
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// which we have to do anyway :)
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//
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// To add a new asm routine, just add another const here, and add the code to Generate.
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// Also, possibly increase the size of the code buffer.
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namespace MIPSComp
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{
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class Jit;
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}
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class AsmRoutineManager : public ArmGen::ARMXCodeBlock
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{
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private:
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void Generate(MIPSState *mips, MIPSComp::Jit *jit);
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void GenerateCommon();
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public:
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AsmRoutineManager()
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{
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}
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void Init(MIPSState *mips, MIPSComp::Jit *jit)
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{
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AllocCodeSpace(8192);
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Generate(mips, jit);
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WriteProtect();
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}
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~AsmRoutineManager()
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{
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FreeCodeSpace();
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}
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const u8 *enterCode;
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const u8 *outerLoop;
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const u8 *dispatcher;
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const u8 *dispatcherNoCheck;
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const u8 *dispatcherPcInR0;
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const u8 *fpException;
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const u8 *testExceptions;
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const u8 *testExternalExceptions;
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const u8 *dispatchPcInEAX;
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const u8 *doTiming;
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const u8 *breakpointBailout;
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};
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#endif // _JIT64ASM_H
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