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/*
Copyright 2016-2023 melonDS team
This file is part of melonDS.
melonDS is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef ARMJIT_H
#define ARMJIT_H
#include <algorithm>
#include <optional>
#include <memory>
#include "types.h"
#include "MemConstants.h"
#include "Args.h"
#ifdef JIT_ENABLED
#include "ARMJIT_Memory.h"
#include "JitBlock.h"
#if defined(__APPLE__) && defined(__aarch64__)
#include <pthread.h>
#endif
#include "ARMJIT_Compiler.h"
namespace melonDS
{
class ARM;
class JitBlock;
class ARMJIT
{
public:
ARMJIT(melonDS::NDS& nds, std::optional<JITArgs> jit) noexcept :
NDS(nds),
Memory(nds),
JITCompiler(nds),
MaxBlockSize(jit.has_value() ? std::clamp(jit->MaxBlockSize, 1u, 32u) : 32),
LiteralOptimizations(jit.has_value() ? jit->LiteralOptimizations : false),
BranchOptimizations(jit.has_value() ? jit->BranchOptimizations : false),
FastMemory(jit.has_value() ? jit->FastMemory : false)
{}
~ARMJIT() noexcept;
void InvalidateByAddr(u32) noexcept;
void CheckAndInvalidateWVRAM(int) noexcept;
void CheckAndInvalidateITCM() noexcept;
void Reset() noexcept;
void JitEnableWrite() noexcept;
void JitEnableExecute() noexcept;
void CompileBlock(ARM* cpu) noexcept;
void ResetBlockCache() noexcept;
template <u32 num, int region>
void CheckAndInvalidate(u32 addr) noexcept
{
u32 localAddr = Memory.LocaliseAddress(region, num, addr);
if (CodeMemRegions[region][(localAddr & 0x7FFFFFF) / 512].Code & (1 << ((localAddr & 0x1FF) / 16)))
InvalidateByAddr(localAddr);
}
JitBlockEntry LookUpBlock(u32 num, u64* entries, u32 offset, u32 addr) noexcept;
bool SetupExecutableRegion(u32 num, u32 blockAddr, u64*& entry, u32& start, u32& size) noexcept;
u32 LocaliseCodeAddress(u32 num, u32 addr) const noexcept;
ARMJIT_Memory Memory;
private:
int MaxBlockSize {};
bool LiteralOptimizations = false;
bool BranchOptimizations = false;
bool FastMemory = false;
public:
melonDS::NDS& NDS;
TinyVector<u32> InvalidLiterals {};
friend class ARMJIT_Memory;
void blockSanityCheck(u32 num, u32 blockAddr, JitBlockEntry entry) noexcept;
void RetireJitBlock(JitBlock* block) noexcept;
int GetMaxBlockSize() const noexcept { return MaxBlockSize; }
bool LiteralOptimizationsEnabled() const noexcept { return LiteralOptimizations; }
bool BranchOptimizationsEnabled() const noexcept { return BranchOptimizations; }
bool FastMemoryEnabled() const noexcept { return FastMemory; }
void SetJITArgs(JITArgs args) noexcept;
void SetMaxBlockSize(int size) noexcept;
void SetLiteralOptimizations(bool enabled) noexcept;
void SetBranchOptimizations(bool enabled) noexcept;
void SetFastMemory(bool enabled) noexcept;
Compiler JITCompiler;
std::unordered_map<u32, JitBlock*> JitBlocks9 {};
std::unordered_map<u32, JitBlock*> JitBlocks7 {};
std::unordered_map<u32, JitBlock*> RestoreCandidates {};
AddressRange CodeIndexITCM[ITCMPhysicalSize / 512] {};
AddressRange CodeIndexMainRAM[MainRAMMaxSize / 512] {};
AddressRange CodeIndexSWRAM[SharedWRAMSize / 512] {};
AddressRange CodeIndexVRAM[0x100000 / 512] {};
AddressRange CodeIndexARM9BIOS[ARM9BIOSSize / 512] {};
AddressRange CodeIndexARM7BIOS[ARM7BIOSSize / 512] {};
AddressRange CodeIndexARM7WRAM[ARM7WRAMSize / 512] {};
AddressRange CodeIndexARM7WVRAM[0x40000 / 512] {};
AddressRange CodeIndexBIOS9DSi[0x10000 / 512] {};
AddressRange CodeIndexBIOS7DSi[0x10000 / 512] {};
AddressRange CodeIndexNWRAM_A[NWRAMSize / 512] {};
AddressRange CodeIndexNWRAM_B[NWRAMSize / 512] {};
AddressRange CodeIndexNWRAM_C[NWRAMSize / 512] {};
u64 FastBlockLookupITCM[ITCMPhysicalSize / 2] {};
u64 FastBlockLookupMainRAM[MainRAMMaxSize / 2] {};
u64 FastBlockLookupSWRAM[SharedWRAMSize / 2] {};
u64 FastBlockLookupVRAM[0x100000 / 2] {};
u64 FastBlockLookupARM9BIOS[ARM9BIOSSize / 2] {};
u64 FastBlockLookupARM7BIOS[ARM7BIOSSize / 2] {};
u64 FastBlockLookupARM7WRAM[ARM7WRAMSize / 2] {};
u64 FastBlockLookupARM7WVRAM[0x40000 / 2] {};
u64 FastBlockLookupBIOS9DSi[0x10000 / 2] {};
u64 FastBlockLookupBIOS7DSi[0x10000 / 2] {};
u64 FastBlockLookupNWRAM_A[NWRAMSize / 2] {};
u64 FastBlockLookupNWRAM_B[NWRAMSize / 2] {};
u64 FastBlockLookupNWRAM_C[NWRAMSize / 2] {};
AddressRange* const CodeMemRegions[ARMJIT_Memory::memregions_Count] =
{
NULL,
CodeIndexITCM,
NULL,
CodeIndexARM9BIOS,
CodeIndexMainRAM,
CodeIndexSWRAM,
NULL,
CodeIndexVRAM,
CodeIndexARM7BIOS,
CodeIndexARM7WRAM,
NULL,
NULL,
CodeIndexARM7WVRAM,
CodeIndexBIOS9DSi,
CodeIndexBIOS7DSi,
CodeIndexNWRAM_A,
CodeIndexNWRAM_B,
CodeIndexNWRAM_C
};
u64* const FastBlockLookupRegions[ARMJIT_Memory::memregions_Count] =
{
NULL,
FastBlockLookupITCM,
NULL,
FastBlockLookupARM9BIOS,
FastBlockLookupMainRAM,
FastBlockLookupSWRAM,
NULL,
FastBlockLookupVRAM,
FastBlockLookupARM7BIOS,
FastBlockLookupARM7WRAM,
NULL,
NULL,
FastBlockLookupARM7WVRAM,
FastBlockLookupBIOS9DSi,
FastBlockLookupBIOS7DSi,
FastBlockLookupNWRAM_A,
FastBlockLookupNWRAM_B,
FastBlockLookupNWRAM_C
};
};
}
// Defined in assembly
extern "C" void ARM_Dispatch(melonDS::ARM* cpu, melonDS::JitBlockEntry entry);
#else
namespace melonDS
{
class ARM;
// This version is a stub; the methods all do nothing,
// but there's still a Memory member.
class ARMJIT
{
public:
ARMJIT(melonDS::NDS& nds, std::optional<JITArgs>) noexcept : Memory(nds) {}
~ARMJIT() noexcept {}
void InvalidateByAddr(u32) noexcept {}
void CheckAndInvalidateWVRAM(int) noexcept {}
void CheckAndInvalidateITCM() noexcept {}
void Reset() noexcept {}
void JitEnableWrite() noexcept {}
void JitEnableExecute() noexcept {}
void CompileBlock(ARM*) noexcept {}
void ResetBlockCache() noexcept {}
template <u32, int>
void CheckAndInvalidate(u32 addr) noexcept {}
ARMJIT_Memory Memory;
};
}
#endif // JIT_ENABLED
#endif // ARMJIT_H
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