/* This file is part of the dynarmic project. * Copyright (c) 2016 MerryMage * This software may be used and distributed according to the terms of the GNU * General Public License version 2 or any later version. */ #pragma once #include #include "common/common_types.h" #include "frontend/ir/basic_block.h" #include "frontend/ir/location_descriptor.h" #include "frontend/ir/terminal.h" #include "frontend/ir/value.h" // ARM JIT Microinstruction Intermediate Representation // // This intermediate representation is an SSA IR. It is designed primarily for analysis, // though it can be lowered into a reduced form for interpretation. Each IR node (Value) // is a microinstruction of an idealised ARM CPU. The choice of microinstructions is made // not based on any existing microarchitecture but on ease of implementation. namespace Dynarmic { namespace IR { enum class Opcode; /** * Convenience class to construct a basic block of the intermediate representation. * `block` is the resulting block. * The user of this class updates `current_location` as appropriate. */ class IREmitter { public: explicit IREmitter(LocationDescriptor descriptor) : block(descriptor), current_location(descriptor) {} Block block; LocationDescriptor current_location; struct ResultAndCarry { Value result; Value carry; }; struct ResultAndOverflow { Value result; Value overflow; }; struct ResultAndCarryAndOverflow { Value result; Value carry; Value overflow; }; struct ResultAndGE { Value result; Value ge; }; void Unimplemented(); u32 PC(); u32 AlignPC(size_t alignment); Value Imm1(bool value); Value Imm8(u8 value); Value Imm32(u32 value); Value Imm64(u64 value); Value GetRegister(Arm::Reg source_reg); Value GetExtendedRegister(Arm::ExtReg source_reg); void SetRegister(const Arm::Reg dest_reg, const Value& value); void SetExtendedRegister(const Arm::ExtReg dest_reg, const Value& value); void ALUWritePC(const Value& value); void BranchWritePC(const Value& value); void BXWritePC(const Value& value); void LoadWritePC(const Value& value); void CallSupervisor(const Value& value); void PushRSB(const LocationDescriptor& return_location); Value GetCpsr(); void SetCpsr(const Value& value); Value GetCFlag(); void SetNFlag(const Value& value); void SetZFlag(const Value& value); void SetCFlag(const Value& value); void SetVFlag(const Value& value); void OrQFlag(const Value& value); Value GetGEFlags(); void SetGEFlags(const Value& value); Value GetFpscr(); void SetFpscr(const Value& new_fpscr); Value GetFpscrNZCV(); void SetFpscrNZCV(const Value& new_fpscr_nzcv); Value Pack2x32To1x64(const Value& lo, const Value& hi); Value LeastSignificantWord(const Value& value); ResultAndCarry MostSignificantWord(const Value& value); Value LeastSignificantHalf(const Value& value); Value LeastSignificantByte(const Value& value); Value MostSignificantBit(const Value& value); Value IsZero(const Value& value); Value IsZero64(const Value& value); ResultAndCarry LogicalShiftLeft(const Value& value_in, const Value& shift_amount, const Value& carry_in); ResultAndCarry LogicalShiftRight(const Value& value_in, const Value& shift_amount, const Value& carry_in); Value LogicalShiftRight64(const Value& value_in, const Value& shift_amount); ResultAndCarry ArithmeticShiftRight(const Value& value_in, const Value& shift_amount, const Value& carry_in); ResultAndCarry RotateRight(const Value& value_in, const Value& shift_amount, const Value& carry_in); ResultAndCarry RotateRightExtended(const Value& value_in, const Value& carry_in); ResultAndCarryAndOverflow AddWithCarry(const Value& a, const Value& b, const Value& carry_in); Value Add(const Value& a, const Value& b); Value Add64(const Value& a, const Value& b); ResultAndCarryAndOverflow SubWithCarry(const Value& a, const Value& b, const Value& carry_in); Value Sub(const Value& a, const Value& b); Value Sub64(const Value& a, const Value& b); Value Mul(const Value& a, const Value& b); Value Mul64(const Value& a, const Value& b); Value And(const Value& a, const Value& b); Value Eor(const Value& a, const Value& b); Value Or(const Value& a, const Value& b); Value Not(const Value& a); Value SignExtendWordToLong(const Value& a); Value SignExtendHalfToWord(const Value& a); Value SignExtendByteToWord(const Value& a); Value ZeroExtendWordToLong(const Value& a); Value ZeroExtendHalfToWord(const Value& a); Value ZeroExtendByteToWord(const Value& a); Value ByteReverseWord(const Value& a); Value ByteReverseHalf(const Value& a); Value ByteReverseDual(const Value& a); Value CountLeadingZeros(const Value& a); Value NegateLowWord(const Value& a); Value NegateHighWord(const Value& a); ResultAndOverflow SignedSaturatedAdd(const Value& a, const Value& b); ResultAndOverflow SignedSaturatedSub(const Value& a, const Value& b); ResultAndGE PackedAddU8(const Value& a, const Value& b); ResultAndGE PackedAddS8(const Value& a, const Value& b); ResultAndGE PackedAddU16(const Value& a, const Value& b); ResultAndGE PackedAddS16(const Value& a, const Value& b); ResultAndGE PackedSubU8(const Value& a, const Value& b); ResultAndGE PackedSubS8(const Value& a, const Value& b); ResultAndGE PackedSubU16(const Value& a, const Value& b); ResultAndGE PackedSubS16(const Value& a, const Value& b); Value PackedHalvingAddU8(const Value& a, const Value& b); Value PackedHalvingAddS8(const Value& a, const Value& b); Value PackedHalvingSubU8(const Value& a, const Value& b); Value PackedHalvingAddU16(const Value& a, const Value& b); Value PackedHalvingAddS16(const Value& a, const Value& b); Value PackedHalvingSubU16(const Value& a, const Value& b); Value PackedSaturatedAddU8(const Value& a, const Value& b); Value PackedSaturatedAddS8(const Value& a, const Value& b); Value PackedSaturatedSubU8(const Value& a, const Value& b); Value PackedSaturatedSubS8(const Value& a, const Value& b); Value PackedSaturatedAddU16(const Value& a, const Value& b); Value PackedSaturatedAddS16(const Value& a, const Value& b); Value PackedSaturatedSubU16(const Value& a, const Value& b); Value PackedSaturatedSubS16(const Value& a, const Value& b); Value PackedAbsDiffSumS8(const Value& a, const Value& b); Value TransferToFP32(const Value& a); Value TransferToFP64(const Value& a); Value TransferFromFP32(const Value& a); Value TransferFromFP64(const Value& a); Value FPAbs32(const Value& a); Value FPAbs64(const Value& a); Value FPAdd32(const Value& a, const Value& b, bool fpscr_controlled); Value FPAdd64(const Value& a, const Value& b, bool fpscr_controlled); void FPCompare32(const Value& a, const Value& b, bool quiet, bool fpscr_controlled); void FPCompare64(const Value& a, const Value& b, bool quiet, bool fpscr_controlled); Value FPDiv32(const Value& a, const Value& b, bool fpscr_controlled); Value FPDiv64(const Value& a, const Value& b, bool fpscr_controlled); Value FPMul32(const Value& a, const Value& b, bool fpscr_controlled); Value FPMul64(const Value& a, const Value& b, bool fpscr_controlled); Value FPNeg32(const Value& a); Value FPNeg64(const Value& a); Value FPSqrt32(const Value& a); Value FPSqrt64(const Value& a); Value FPSub32(const Value& a, const Value& b, bool fpscr_controlled); Value FPSub64(const Value& a, const Value& b, bool fpscr_controlled); Value FPDoubleToSingle(const Value& a, bool fpscr_controlled); Value FPSingleToDouble(const Value& a, bool fpscr_controlled); Value FPSingleToS32(const Value& a, bool round_towards_zero, bool fpscr_controlled); Value FPSingleToU32(const Value& a, bool round_towards_zero, bool fpscr_controlled); Value FPDoubleToS32(const Value& a, bool round_towards_zero, bool fpscr_controlled); Value FPDoubleToU32(const Value& a, bool round_towards_zero, bool fpscr_controlled); Value FPS32ToSingle(const Value& a, bool round_to_nearest, bool fpscr_controlled); Value FPU32ToSingle(const Value& a, bool round_to_nearest, bool fpscr_controlled); Value FPS32ToDouble(const Value& a, bool round_to_nearest, bool fpscr_controlled); Value FPU32ToDouble(const Value& a, bool round_to_nearest, bool fpscr_controlled); void ClearExclusive(); void SetExclusive(const Value& vaddr, size_t byte_size); Value ReadMemory8(const Value& vaddr); Value ReadMemory16(const Value& vaddr); Value ReadMemory32(const Value& vaddr); Value ReadMemory64(const Value& vaddr); void WriteMemory8(const Value& vaddr, const Value& value); void WriteMemory16(const Value& vaddr, const Value& value); void WriteMemory32(const Value& vaddr, const Value& value); void WriteMemory64(const Value& vaddr, const Value& value); Value ExclusiveWriteMemory8(const Value& vaddr, const Value& value); Value ExclusiveWriteMemory16(const Value& vaddr, const Value& value); Value ExclusiveWriteMemory32(const Value& vaddr, const Value& value); Value ExclusiveWriteMemory64(const Value& vaddr, const Value& value_lo, const Value& value_hi); void Breakpoint(); void SetTerm(const Terminal& terminal); private: Value Inst(Opcode op, std::initializer_list args); }; } // namespace IR } // namespace Dynarmic