duckstation/src/core/cpu_pgxp.h
2024-08-19 22:22:18 +10:00

108 lines
3.5 KiB
C++

// SPDX-FileCopyrightText: 2016 iCatButler, 2019-2023 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: GPL-2.0+
#pragma once
#include "cpu_core.h"
namespace CPU::PGXP {
void Initialize();
void Reset();
void Shutdown();
// -- GTE functions
// Transforms
void GTE_RTPS(float x, float y, float z, u32 value);
int GTE_NCLIP_valid(u32 sxy0, u32 sxy1, u32 sxy2);
float GTE_NCLIP();
// Data transfer tracking
void CPU_MFC2(Instruction instr, u32 rdVal); // copy GTE data reg to GPR reg (MFC2)
void CPU_MTC2(Instruction instr, u32 rtVal); // copy GPR reg to GTE data reg (MTC2)
// Memory Access
void CPU_LWC2(Instruction instr, u32 addr, u32 rtVal); // copy memory to GTE reg
void CPU_SWC2(Instruction instr, u32 addr, u32 rtVal); // copy GTE reg to memory
bool GetPreciseVertex(u32 addr, u32 value, int x, int y, int xOffs, int yOffs, float* out_x, float* out_y,
float* out_w);
// -- CPU functions
void CPU_LW(Instruction instr, u32 addr, u32 rtVal);
void CPU_LH(Instruction instr, u32 addr, u32 rtVal);
void CPU_LHU(Instruction instr, u32 addr, u32 rtVal);
void CPU_LBx(Instruction instr, u32 addr, u32 rtVal);
void CPU_SB(Instruction instr, u32 addr, u32 rtVal);
void CPU_SH(Instruction instr, u32 addr, u32 rtVal);
void CPU_SW(Instruction instr, u32 addr, u32 rtVal);
void CPU_MOVE(u32 Rd, u32 Rs, u32 rsVal);
ALWAYS_INLINE static u32 PackMoveArgs(Reg rd, Reg rs)
{
return (static_cast<u32>(rd) << 8) | static_cast<u32>(rs);
}
void CPU_MOVE_Packed(u32 rd_and_rs, u32 rsVal);
// Arithmetic with immediate value
void CPU_ADDI(Instruction instr, u32 rsVal);
void CPU_ANDI(Instruction instr, u32 rsVal);
void CPU_ORI(Instruction instr, u32 rsVal);
void CPU_XORI(Instruction instr, u32 rsVal);
void CPU_SLTI(Instruction instr, u32 rsVal);
void CPU_SLTIU(Instruction instr, u32 rsVal);
// Load Upper
void CPU_LUI(Instruction instr);
// Register Arithmetic
void CPU_ADD(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_SUB(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_AND_(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_OR_(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_XOR_(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_NOR(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_SLT(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_SLTU(Instruction instr, u32 rsVal, u32 rtVal);
// Register mult/div
void CPU_MULT(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_MULTU(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_DIV(Instruction instr, u32 rsVal, u32 rtVal);
void CPU_DIVU(Instruction instr, u32 rsVal, u32 rtVal);
// Shift operations (sa)
void CPU_SLL(Instruction instr, u32 rtVal);
void CPU_SRL(Instruction instr, u32 rtVal);
void CPU_SRA(Instruction instr, u32 rtVal);
// Shift operations variable
void CPU_SLLV(Instruction instr, u32 rtVal, u32 rsVal);
void CPU_SRLV(Instruction instr, u32 rtVal, u32 rsVal);
void CPU_SRAV(Instruction instr, u32 rtVal, u32 rsVal);
// CP0 Data transfer tracking
void CPU_MFC0(Instruction instr, u32 rdVal);
void CPU_MTC0(Instruction instr, u32 rdVal, u32 rtVal);
ALWAYS_INLINE void TryMove(Reg rd, Reg rs, Reg rt)
{
u32 src;
if (rs == Reg::zero)
src = static_cast<u32>(rt);
else if (rt == Reg::zero)
src = static_cast<u32>(rs);
else
return;
CPU_MOVE(static_cast<u32>(rd), src, g_state.regs.r[src]);
}
ALWAYS_INLINE void TryMoveImm(Reg rd, Reg rs, u32 imm)
{
if (imm == 0)
{
const u32 src = static_cast<u32>(rs);
CPU_MOVE(static_cast<u32>(rd), src, g_state.regs.r[src]);
}
}
} // namespace CPU::PGXP