98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "shader_recompiler/frontend/instruction.h"
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namespace Shader::Gcn {
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struct InstFormat {
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InstClass inst_class = InstClass::Undefined;
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InstCategory inst_category = InstCategory::Undefined;
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u32 src_count = 0;
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u32 dst_count = 0;
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ScalarType src_type = ScalarType::Undefined;
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ScalarType dst_type = ScalarType::Undefined;
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};
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InstEncoding GetInstructionEncoding(u32 token);
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u32 GetEncodingLength(InstEncoding encoding);
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InstFormat InstructionFormat(InstEncoding encoding, u32 opcode);
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Opcode DecodeOpcode(u32 token);
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class GcnCodeSlice {
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public:
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GcnCodeSlice(const u32* ptr, const u32* end) : m_ptr(ptr), m_end(end) {}
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GcnCodeSlice(const GcnCodeSlice& other) = default;
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~GcnCodeSlice() = default;
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u32 at(u32 id) const {
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return m_ptr[id];
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}
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u32 readu32() {
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return *(m_ptr++);
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}
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u64 readu64() {
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const u64 value = *(u64*)m_ptr;
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m_ptr += 2;
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return value;
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}
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bool atEnd() const {
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return m_ptr == m_end;
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}
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private:
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const u32* m_ptr{};
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const u32* m_end{};
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};
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class GcnDecodeContext {
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public:
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GcnInst decodeInstruction(GcnCodeSlice& code);
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private:
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uint32_t getEncodingLength(InstEncoding encoding);
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uint32_t getOpMapOffset(InstEncoding encoding);
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uint32_t mapEncodingOp(InstEncoding encoding, Opcode opcode);
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void updateInstructionMeta(InstEncoding encoding);
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uint32_t getMimgModifier(Opcode opcode);
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void repairOperandType();
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OperandField getOperandField(uint32_t code);
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void decodeInstruction32(InstEncoding encoding, GcnCodeSlice& code);
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void decodeInstruction64(InstEncoding encoding, GcnCodeSlice& code);
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void decodeLiteralConstant(InstEncoding encoding, GcnCodeSlice& code);
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// 32 bits encodings
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void decodeInstructionSOP1(uint32_t hexInstruction);
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void decodeInstructionSOPP(uint32_t hexInstruction);
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void decodeInstructionSOPC(uint32_t hexInstruction);
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void decodeInstructionSOPK(uint32_t hexInstruction);
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void decodeInstructionSOP2(uint32_t hexInstruction);
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void decodeInstructionVOP1(uint32_t hexInstruction);
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void decodeInstructionVOPC(uint32_t hexInstruction);
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void decodeInstructionVOP2(uint32_t hexInstruction);
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void decodeInstructionSMRD(uint32_t hexInstruction);
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void decodeInstructionVINTRP(uint32_t hexInstruction);
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// 64 bits encodings
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void decodeInstructionVOP3(uint64_t hexInstruction);
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void decodeInstructionMUBUF(uint64_t hexInstruction);
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void decodeInstructionMTBUF(uint64_t hexInstruction);
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void decodeInstructionMIMG(uint64_t hexInstruction);
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void decodeInstructionDS(uint64_t hexInstruction);
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void decodeInstructionEXP(uint64_t hexInstruction);
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private:
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GcnInst m_instruction;
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};
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} // namespace Shader::Gcn
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