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/*
Copyright 2016-2022 melonDS team, RSDuck
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_INTERNAL_H
#define ARMJIT_INTERNAL_H
#include "types.h"
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include "ARM_InstrInfo.h"
#include "JitBlock.h"
#include "TinyVector.h"
namespace melonDS
{
class ARM;
class ARMv5;
// here lands everything which doesn't fit into ARMJIT.h
// where it would be included by pretty much everything
enum
{
branch_IdleBranch = 1 << 0,
branch_FollowCondTaken = 1 << 1,
branch_FollowCondNotTaken = 1 << 2,
branch_StaticTarget = 1 << 3,
};
struct FetchedInstr
{
u32 A_Reg(int pos) const
{
return (Instr >> pos) & 0xF;
}
u32 T_Reg(int pos) const
{
return (Instr >> pos) & 0x7;
}
u32 Cond() const
{
return Instr >> 28;
}
u8 BranchFlags;
u8 SetFlags;
u32 Instr;
u32 Addr;
u8 DataCycles;
u16 CodeCycles;
u32 DataRegion;
ARMInstrInfo::Info Info;
};
// size should be 16 bytes because I'm to lazy to use mul and whatnot
struct __attribute__((packed)) AddressRange
{
TinyVector<JitBlock*> Blocks;
u32 Code;
};
typedef void (*InterpreterFunc)(ARM* cpu);
extern InterpreterFunc InterpretARM[];
extern InterpreterFunc InterpretTHUMB[];
inline bool PageContainsCode(const AddressRange* range)
{
for (int i = 0; i < 8; i++)
{
if (range[i].Blocks.Length > 0)
return true;
}
return false;
}
template <typename T, int ConsoleType> T SlowRead9(u32 addr, ARMv5* cpu);
template <typename T, int ConsoleType> void SlowWrite9(u32 addr, ARMv5* cpu, u32 val);
template <typename T, int ConsoleType> T SlowRead7(u32 addr);
template <typename T, int ConsoleType> void SlowWrite7(u32 addr, u32 val);
template <bool Write, int ConsoleType> void SlowBlockTransfer9(u32 addr, u64* data, u32 num, ARMv5* cpu);
template <bool Write, int ConsoleType> void SlowBlockTransfer7(u32 addr, u64* data, u32 num);
}
#endif
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