70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
/*!
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\file Instruction.h
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\brief Decode instructions part of the RISC-V
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\author Màrius Montón
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\date August 2018
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*/
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// SPDX-License-Identifier: GPL-3.0-or-later
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#ifndef INSTRUCTION__H
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#define INSTRUCTION__H
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#include "systemc"
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#include "extension_base.h"
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namespace riscv_tlm {
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typedef enum {
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BASE_EXTENSION,
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M_EXTENSION,
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A_EXTENSION,
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F_EXTENSION,
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D_EXTENSION,
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Q_EXTENSION,
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L_EXTENSION,
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C_EXTENSION,
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R_EXTENSION,
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J_EXTENSION,
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P_EXTENSION,
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V_EXTENSION,
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N_EXTENSION,
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UNKNOWN_EXTENSION
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} extension_t;
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/**
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* @brief Instruction decoding and fields access
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*/
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class Instruction {
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public:
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Instruction(std::uint32_t instr);
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/**
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* @brief returns what instruction extension
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* @return extension
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*/
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extension_t check_extension() const;
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void setInstr(std::uint32_t p_instr) {
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m_instr = p_instr;
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}
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/**
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* @brief return instruction
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* @return all instruction bits (31:0)
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*/
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std::uint32_t getInstr() const {
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return m_instr;
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}
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inline void dump() const {
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std::cout << std::hex << "0x" << m_instr << std::dec << std::endl;
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}
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private:
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std::uint32_t m_instr;
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};
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}
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#endif
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