duckstation

duckstation, but archived from the revision just before upstream changed it to a proprietary software project, this version is the libre one
git clone https://git.neptards.moe/u3shit/duckstation.git
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cpu_newrec_compiler_x64.h (6779B)


      1 // SPDX-FileCopyrightText: 2023 Connor McLaughlin <stenzek@gmail.com>
      2 // SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
      3 
      4 #pragma once
      5 #include "cpu_newrec_compiler.h"
      6 #include <memory>
      7 
      8 #ifdef CPU_ARCH_X64
      9 
     10 namespace CPU::NewRec {
     11 
     12 class X64Compiler final : public Compiler
     13 {
     14 public:
     15   X64Compiler();
     16   ~X64Compiler() override;
     17 
     18 protected:
     19   const char* GetHostRegName(u32 reg) const override;
     20 
     21   const void* GetCurrentCodePointer() override;
     22 
     23   void LoadHostRegWithConstant(u32 reg, u32 val) override;
     24   void LoadHostRegFromCPUPointer(u32 reg, const void* ptr) override;
     25   void StoreConstantToCPUPointer(u32 val, const void* ptr) override;
     26   void StoreHostRegToCPUPointer(u32 reg, const void* ptr) override;
     27   void CopyHostReg(u32 dst, u32 src) override;
     28 
     29   void Reset(CodeCache::Block* block, u8* code_buffer, u32 code_buffer_space, u8* far_code_buffer,
     30              u32 far_code_space) override;
     31   void BeginBlock() override;
     32   void GenerateBlockProtectCheck(const u8* ram_ptr, const u8* shadow_ptr, u32 size) override;
     33   void GenerateICacheCheckAndUpdate() override;
     34   void GenerateCall(const void* func, s32 arg1reg = -1, s32 arg2reg = -1, s32 arg3reg = -1) override;
     35   void EndBlock(const std::optional<u32>& newpc, bool do_event_test) override;
     36   void EndBlockWithException(Exception excode) override;
     37   void EndAndLinkBlock(const std::optional<u32>& newpc, bool do_event_test, bool force_run_events);
     38   const void* EndCompile(u32* code_size, u32* far_code_size) override;
     39 
     40   void Flush(u32 flags) override;
     41 
     42   void Compile_Fallback() override;
     43 
     44   void CheckBranchTarget(const Xbyak::Reg32& pcreg);
     45   void Compile_jr(CompileFlags cf) override;
     46   void Compile_jalr(CompileFlags cf) override;
     47   void Compile_bxx(CompileFlags cf, BranchCondition cond) override;
     48 
     49   void Compile_addi(CompileFlags cf) override;
     50   void Compile_addiu(CompileFlags cf) override;
     51   void Compile_slti(CompileFlags cf, bool sign);
     52   void Compile_slti(CompileFlags cf) override;
     53   void Compile_sltiu(CompileFlags cf) override;
     54   void Compile_andi(CompileFlags cf) override;
     55   void Compile_ori(CompileFlags cf) override;
     56   void Compile_xori(CompileFlags cf) override;
     57 
     58   void Compile_sll(CompileFlags cf) override;
     59   void Compile_srl(CompileFlags cf) override;
     60   void Compile_sra(CompileFlags cf) override;
     61   void Compile_variable_shift(CompileFlags cf,
     62                               void (Xbyak::CodeGenerator::*op)(const Xbyak::Operand&, const Xbyak::Reg8&),
     63                               void (Xbyak::CodeGenerator::*op_const)(const Xbyak::Operand&, int));
     64   void Compile_sllv(CompileFlags cf) override;
     65   void Compile_srlv(CompileFlags cf) override;
     66   void Compile_srav(CompileFlags cf) override;
     67   void Compile_mult(CompileFlags cf, bool sign);
     68   void Compile_mult(CompileFlags cf) override;
     69   void Compile_multu(CompileFlags cf) override;
     70   void Compile_div(CompileFlags cf) override;
     71   void Compile_divu(CompileFlags cf) override;
     72   void TestOverflow(const Xbyak::Reg32& result);
     73   void Compile_dst_op(CompileFlags cf, void (Xbyak::CodeGenerator::*op)(const Xbyak::Operand&, const Xbyak::Operand&),
     74                       void (Xbyak::CodeGenerator::*op_const)(const Xbyak::Operand&, u32), bool commutative,
     75                       bool overflow);
     76   void Compile_add(CompileFlags cf) override;
     77   void Compile_addu(CompileFlags cf) override;
     78   void Compile_sub(CompileFlags cf) override;
     79   void Compile_subu(CompileFlags cf) override;
     80   void Compile_and(CompileFlags cf) override;
     81   void Compile_or(CompileFlags cf) override;
     82   void Compile_xor(CompileFlags cf) override;
     83   void Compile_nor(CompileFlags cf) override;
     84   void Compile_slt(CompileFlags cf, bool sign);
     85   void Compile_slt(CompileFlags cf) override;
     86   void Compile_sltu(CompileFlags cf) override;
     87 
     88   Xbyak::Reg32 ComputeLoadStoreAddressArg(CompileFlags cf, const std::optional<VirtualMemoryAddress>& address,
     89                                           const std::optional<const Xbyak::Reg32>& reg = std::nullopt);
     90   template<typename RegAllocFn>
     91   Xbyak::Reg32 GenerateLoad(const Xbyak::Reg32& addr_reg, MemoryAccessSize size, bool sign, bool use_fastmem,
     92                             const RegAllocFn& dst_reg_alloc);
     93   void GenerateStore(const Xbyak::Reg32& addr_reg, const Xbyak::Reg32& value_reg, MemoryAccessSize size,
     94                      bool use_fastmem);
     95   void Compile_lxx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
     96                    const std::optional<VirtualMemoryAddress>& address) override;
     97   void Compile_lwx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
     98                    const std::optional<VirtualMemoryAddress>& address) override;
     99   void Compile_lwc2(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
    100                     const std::optional<VirtualMemoryAddress>& address) override;
    101   void Compile_sxx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
    102                    const std::optional<VirtualMemoryAddress>& address) override;
    103   void Compile_swx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
    104                    const std::optional<VirtualMemoryAddress>& address) override;
    105   void Compile_swc2(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
    106                     const std::optional<VirtualMemoryAddress>& address) override;
    107 
    108   void TestInterrupts(const Xbyak::Reg32& sr);
    109   void Compile_mtc0(CompileFlags cf) override;
    110   void Compile_rfe(CompileFlags cf) override;
    111 
    112   void Compile_mfc2(CompileFlags cf) override;
    113   void Compile_mtc2(CompileFlags cf) override;
    114   void Compile_cop2(CompileFlags cf) override;
    115 
    116   void GeneratePGXPCallWithMIPSRegs(const void* func, u32 arg1val, Reg arg2reg = Reg::count,
    117                                     Reg arg3reg = Reg::count) override;
    118 
    119 private:
    120   void SwitchToFarCode(bool emit_jump, void (Xbyak::CodeGenerator::*jump_op)(const void*) = nullptr);
    121   void SwitchToNearCode(bool emit_jump, void (Xbyak::CodeGenerator::*jump_op)(const void*) = nullptr);
    122 
    123   Xbyak::Address MipsPtr(Reg r) const;
    124   Xbyak::Reg32 CFGetRegD(CompileFlags cf) const;
    125   Xbyak::Reg32 CFGetRegS(CompileFlags cf) const;
    126   Xbyak::Reg32 CFGetRegT(CompileFlags cf) const;
    127   Xbyak::Reg32 CFGetRegLO(CompileFlags cf) const;
    128   Xbyak::Reg32 CFGetRegHI(CompileFlags cf) const;
    129 
    130   Xbyak::Reg32 MoveSToD(CompileFlags cf);
    131   Xbyak::Reg32 MoveSToT(CompileFlags cf);
    132   Xbyak::Reg32 MoveTToD(CompileFlags cf);
    133   void MoveSToReg(const Xbyak::Reg32& dst, CompileFlags cf);
    134   void MoveTToReg(const Xbyak::Reg32& dst, CompileFlags cf);
    135   void MoveMIPSRegToReg(const Xbyak::Reg32& dst, Reg reg);
    136 
    137   std::unique_ptr<Xbyak::CodeGenerator> m_emitter;
    138   std::unique_ptr<Xbyak::CodeGenerator> m_far_emitter;
    139   Xbyak::CodeGenerator* cg;
    140 };
    141 
    142 } // namespace CPU::NewRec
    143 
    144 #endif // CPU_ARCH_X64