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Duckstation/src/core/cpu_newrec_compiler_riscv64.h
Stenzek b7c3c76014
CPU/NewRec/RISCV64: Implement PGXP
2023-12-21 02:00:19 +10:00

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// SPDX-FileCopyrightText: 2023 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
#pragma once
#include "cpu_newrec_compiler.h"
#include <memory>
#ifdef CPU_ARCH_RISCV64
namespace CPU::NewRec {
class RISCV64Compiler final : public Compiler
{
public:
RISCV64Compiler();
~RISCV64Compiler() override;
protected:
const char* GetHostRegName(u32 reg) const override;
const void* GetCurrentCodePointer() override;
void LoadHostRegWithConstant(u32 reg, u32 val) override;
void LoadHostRegFromCPUPointer(u32 reg, const void* ptr) override;
void StoreConstantToCPUPointer(u32 val, const void* ptr) override;
void StoreHostRegToCPUPointer(u32 reg, const void* ptr) override;
void CopyHostReg(u32 dst, u32 src) override;
void Reset(CodeCache::Block* block, u8* code_buffer, u32 code_buffer_space, u8* far_code_buffer,
u32 far_code_space) override;
void GenerateBlockProtectCheck(const u8* ram_ptr, const u8* shadow_ptr, u32 size) override;
void GenerateICacheCheckAndUpdate() override;
void GenerateCall(const void* func, s32 arg1reg = -1, s32 arg2reg = -1, s32 arg3reg = -1) override;
void EndBlock(const std::optional<u32>& newpc, bool do_event_test) override;
void EndBlockWithException(Exception excode) override;
void EndAndLinkBlock(const std::optional<u32>& newpc, bool do_event_test, bool force_run_events);
const void* EndCompile(u32* code_size, u32* far_code_size) override;
void Flush(u32 flags) override;
void Compile_Fallback() override;
void CheckBranchTarget(const biscuit::GPR& pcreg);
void Compile_jr(CompileFlags cf) override;
void Compile_jalr(CompileFlags cf) override;
void Compile_bxx(CompileFlags cf, BranchCondition cond) override;
void Compile_addi(CompileFlags cf, bool overflow);
void Compile_addi(CompileFlags cf) override;
void Compile_addiu(CompileFlags cf) override;
void Compile_slti(CompileFlags cf, bool sign);
void Compile_slti(CompileFlags cf) override;
void Compile_sltiu(CompileFlags cf) override;
void Compile_andi(CompileFlags cf) override;
void Compile_ori(CompileFlags cf) override;
void Compile_xori(CompileFlags cf) override;
void Compile_shift(CompileFlags cf, void (biscuit::Assembler::*op)(biscuit::GPR, biscuit::GPR, biscuit::GPR),
void (biscuit::Assembler::*op_const)(biscuit::GPR, biscuit::GPR, unsigned));
void Compile_sll(CompileFlags cf) override;
void Compile_srl(CompileFlags cf) override;
void Compile_sra(CompileFlags cf) override;
void Compile_variable_shift(CompileFlags cf, void (biscuit::Assembler::*op)(biscuit::GPR, biscuit::GPR, biscuit::GPR),
void (biscuit::Assembler::*op_const)(biscuit::GPR, biscuit::GPR, unsigned));
void Compile_sllv(CompileFlags cf) override;
void Compile_srlv(CompileFlags cf) override;
void Compile_srav(CompileFlags cf) override;
void Compile_mult(CompileFlags cf, bool sign);
void Compile_mult(CompileFlags cf) override;
void Compile_multu(CompileFlags cf) override;
void Compile_div(CompileFlags cf) override;
void Compile_divu(CompileFlags cf) override;
void TestOverflow(const biscuit::GPR& long_res, const biscuit::GPR& res, const biscuit::GPR& reg_to_discard);
void Compile_dst_op(CompileFlags cf, void (biscuit::Assembler::*op)(biscuit::GPR, biscuit::GPR, biscuit::GPR),
void (RISCV64Compiler::*op_const)(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm),
void (biscuit::Assembler::*op_long)(biscuit::GPR, biscuit::GPR, biscuit::GPR), bool commutative,
bool overflow);
void Compile_add(CompileFlags cf) override;
void Compile_addu(CompileFlags cf) override;
void Compile_sub(CompileFlags cf) override;
void Compile_subu(CompileFlags cf) override;
void Compile_and(CompileFlags cf) override;
void Compile_or(CompileFlags cf) override;
void Compile_xor(CompileFlags cf) override;
void Compile_nor(CompileFlags cf) override;
void Compile_slt(CompileFlags cf, bool sign);
void Compile_slt(CompileFlags cf) override;
void Compile_sltu(CompileFlags cf) override;
biscuit::GPR ComputeLoadStoreAddressArg(CompileFlags cf, const std::optional<VirtualMemoryAddress>& address,
const std::optional<const biscuit::GPR>& reg = std::nullopt);
template<typename RegAllocFn>
biscuit::GPR GenerateLoad(const biscuit::GPR& addr_reg, MemoryAccessSize size, bool sign, bool use_fastmem,
const RegAllocFn& dst_reg_alloc);
void GenerateStore(const biscuit::GPR& addr_reg, const biscuit::GPR& value_reg, MemoryAccessSize size,
bool use_fastmem);
void Compile_lxx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void Compile_lwx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void Compile_lwc2(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void Compile_sxx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void Compile_swx(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void Compile_swc2(CompileFlags cf, MemoryAccessSize size, bool sign, bool use_fastmem,
const std::optional<VirtualMemoryAddress>& address) override;
void TestInterrupts(const biscuit::GPR& sr);
void Compile_mtc0(CompileFlags cf) override;
void Compile_rfe(CompileFlags cf) override;
void Compile_mfc2(CompileFlags cf) override;
void Compile_mtc2(CompileFlags cf) override;
void Compile_cop2(CompileFlags cf) override;
void GeneratePGXPCallWithMIPSRegs(const void* func, u32 arg1val, Reg arg2reg = Reg::count,
Reg arg3reg = Reg::count) override;
private:
void EmitMov(const biscuit::GPR& dst, u32 val);
void EmitCall(const void* ptr);
void SwitchToFarCode(bool emit_jump,
void (biscuit::Assembler::*inverted_cond)(biscuit::GPR, biscuit::GPR, biscuit::Label*) = nullptr,
const biscuit::GPR& rs1 = biscuit::zero, const biscuit::GPR& rs2 = biscuit::zero);
void SwitchToNearCode(bool emit_jump);
void AssertRegOrConstS(CompileFlags cf) const;
void AssertRegOrConstT(CompileFlags cf) const;
// vixl::aarch64::MemOperand MipsPtr(Reg r) const;
void SafeImmSExtIType(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm,
void (biscuit::Assembler::*iop)(biscuit::GPR, biscuit::GPR, u32),
void (biscuit::Assembler::*rop)(biscuit::GPR, biscuit::GPR, biscuit::GPR));
void SafeADDI(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeADDIW(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeSUBIW(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeANDI(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeORI(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeXORI(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeSLTI(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void SafeSLTIU(const biscuit::GPR& rd, const biscuit::GPR& rs, u32 imm);
void EmitSExtB(const biscuit::GPR& rd, const biscuit::GPR& rs);
void EmitUExtB(const biscuit::GPR& rd, const biscuit::GPR& rs);
void EmitSExtH(const biscuit::GPR& rd, const biscuit::GPR& rs);
void EmitUExtH(const biscuit::GPR& rd, const biscuit::GPR& rs);
void EmitDSExtW(const biscuit::GPR& rd, const biscuit::GPR& rs);
void EmitDUExtW(const biscuit::GPR& rd, const biscuit::GPR& rs);
biscuit::GPR CFGetSafeRegS(CompileFlags cf, const biscuit::GPR& temp_reg);
biscuit::GPR CFGetSafeRegT(CompileFlags cf, const biscuit::GPR& temp_reg);
biscuit::GPR CFGetRegD(CompileFlags cf) const;
biscuit::GPR CFGetRegS(CompileFlags cf) const;
biscuit::GPR CFGetRegT(CompileFlags cf) const;
biscuit::GPR CFGetRegLO(CompileFlags cf) const;
biscuit::GPR CFGetRegHI(CompileFlags cf) const;
void MoveSToReg(const biscuit::GPR& dst, CompileFlags cf);
void MoveTToReg(const biscuit::GPR& dst, CompileFlags cf);
void MoveMIPSRegToReg(const biscuit::GPR& dst, Reg reg);
std::unique_ptr<biscuit::Assembler> m_emitter;
std::unique_ptr<biscuit::Assembler> m_far_emitter;
biscuit::Assembler* rvAsm;
};
} // namespace CPU::NewRec
#endif // CPU_ARCH_RISCV64
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