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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <unordered_map>
#include <vector>
#include "common/bit_field.h"
#include "common/common_types.h"
namespace Tegra {
namespace Engines {
class Maxwell3D;
}
namespace Macro {
constexpr std::size_t NUM_MACRO_REGISTERS = 8;
enum class Operation : u32 {
ALU = 0,
AddImmediate = 1,
ExtractInsert = 2,
ExtractShiftLeftImmediate = 3,
ExtractShiftLeftRegister = 4,
Read = 5,
Unused = 6, // This operation doesn't seem to be a valid encoding.
Branch = 7,
};
enum class ALUOperation : u32 {
Add = 0,
AddWithCarry = 1,
Subtract = 2,
SubtractWithBorrow = 3,
// Operations 4-7 don't seem to be valid encodings.
Xor = 8,
Or = 9,
And = 10,
AndNot = 11,
Nand = 12
};
enum class ResultOperation : u32 {
IgnoreAndFetch = 0,
Move = 1,
MoveAndSetMethod = 2,
FetchAndSend = 3,
MoveAndSend = 4,
FetchAndSetMethod = 5,
MoveAndSetMethodFetchAndSend = 6,
MoveAndSetMethodSend = 7
};
enum class BranchCondition : u32 {
Zero = 0,
NotZero = 1,
};
union Opcode {
u32 raw;
BitField<0, 3, Operation> operation;
BitField<4, 3, ResultOperation> result_operation;
BitField<4, 1, BranchCondition> branch_condition;
// If set on a branch, then the branch doesn't have a delay slot.
BitField<5, 1, u32> branch_annul;
BitField<7, 1, u32> is_exit;
BitField<8, 3, u32> dst;
BitField<11, 3, u32> src_a;
BitField<14, 3, u32> src_b;
// The signed immediate overlaps the second source operand and the alu operation.
BitField<14, 18, s32> immediate;
BitField<17, 5, ALUOperation> alu_operation;
// Bitfield instructions data
BitField<17, 5, u32> bf_src_bit;
BitField<22, 5, u32> bf_size;
BitField<27, 5, u32> bf_dst_bit;
u32 GetBitfieldMask() const {
return (1 << bf_size) - 1;
}
s32 GetBranchTarget() const {
return static_cast<s32>(immediate * sizeof(u32));
}
};
union MethodAddress {
u32 raw;
BitField<0, 12, u32> address;
BitField<12, 6, u32> increment;
};
} // namespace Macro
class CachedMacro {
public:
virtual ~CachedMacro() = default;
/**
* Executes the macro code with the specified input parameters.
* @param code The macro byte code to execute
* @param parameters The parameters of the macro
*/
virtual void Execute(std::vector<u32>& parameters, u32 method) = 0;
};
class MacroEngine {
public:
virtual ~MacroEngine() = default;
// Store the uploaded macro code to compile them when they're called.
void AddCode(u32 method, u32 data);
// Compiles the macro if its not in the cache, and executes the compiled macro
void Execute(u32 method, std::vector<u32> parameters);
protected:
virtual std::unique_ptr<CachedMacro> Compile(const std::vector<u32>& code) = 0;
private:
std::unordered_map<u32, std::unique_ptr<CachedMacro>> macro_cache;
std::unordered_map<u32, std::vector<u32>> uploaded_macro_code;
};
std::unique_ptr<MacroEngine> GetMacroEngine(Engines::Maxwell3D& maxwell3d);
} // namespace Tegra
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