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risc-v-tlm/inc/BASE_ISA.h

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Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
/*!
\file BASE_ISA.h
\brief RISC-V ISA implementation
\author Màrius Montón
\date August 2018
*/
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef Execute_H
#define Execute_H
#define SC_INCLUDE_DYNAMIC_PROCESSES
#include "systemc"
#include "tlm.h"
#include "tlm_utils/simple_initiator_socket.h"
#include "memory.h"
#include "MemoryInterface.h"
#include "Instruction.h"
#include "C_extension.h"
#include "M_extension.h"
#include "A_extension.h"
#include "Registers.h"
#include "Log.h"
typedef enum {
OP_LUI,
OP_AUIPC,
OP_JAL,
OP_JALR,
OP_BEQ,
OP_BNE,
OP_BLT,
OP_BGE,
OP_BLTU,
OP_BGEU,
OP_LB,
OP_LH,
OP_LW,
OP_LBU,
OP_LHU,
OP_SB,
OP_SH,
OP_SW,
OP_ADDI,
OP_SLTI,
OP_SLTIU,
OP_XORI,
OP_ORI,
OP_ANDI,
OP_SLLI,
OP_SRLI,
OP_SRAI,
OP_ADD,
OP_SUB,
OP_SLL,
OP_SLT,
OP_SLTU,
OP_XOR,
OP_SRL,
OP_SRA,
OP_OR,
OP_AND,
OP_FENCE,
OP_ECALL,
OP_EBREAK,
OP_CSRRW,
OP_CSRRS,
OP_CSRRC,
OP_CSRRWI,
OP_CSRRSI,
OP_CSRRCI,
OP_URET,
OP_SRET,
OP_MRET,
OP_WFI,
OP_SFENCE,
OP_ERROR
} opCodes;
/**
* @brief Risc_V execute module
*/
class BASE_ISA: public extension_base {
public:
/**
* @brief Constructor, same as base class
*/
using extension_base::extension_base;
/**
* @brief Access to funct7 field
* @return funct7 field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_funct7() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
return m_instr.range(31, 25);
}
/**
* @brief Sets func7 field
* @param value desired func7 value
*/
inline void set_func7(int32_t value) {
m_instr.range(31, 25) = value;
}
/**
* @brief Gets immediate field value for I-type
* @return immediate_I field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_imm_I() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
int32_t aux = 0;
aux = m_instr.range(31, 20);
/* sign extension (optimize) */
if (m_instr[31] == 1) {
aux |= (0b11111111111111111111) << 12;
}
return aux;
}
/**
* @brief Sets immediate field for I-type
* @param value desired I value
*/
inline void set_imm_I(int32_t value) {
m_instr.range(31, 20) = value;
}
/**
* @brief Gets immediate field value for S-type
* @return immediate_S field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_imm_S() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
int32_t aux = 0;
aux = m_instr.range(31, 25) << 5;
aux |= m_instr.range(11, 7);
if (m_instr[31] == 1) {
aux |= (0b11111111111111111111) << 12;
}
return aux;
}
/**
* @brief Gets immediate field value for U-type
* @return immediate_U field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_imm_U() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
return m_instr.range(31, 12);
}
/**
* @brief Sets immediate field for U-type
* @param value desired U value
*/
inline void set_imm_U(int32_t value) {
m_instr.range(31, 12) = (value << 12);
}
/**
* @brief Gets immediate field value for B-type
* @return immediate_B field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_imm_B() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
int32_t aux = 0;
aux |= m_instr[7] << 11;
aux |= m_instr.range(30, 25) << 5;
aux |= m_instr[31] << 12;
aux |= m_instr.range(11, 8) << 1;
if (m_instr[31] == 1) {
aux |= (0b11111111111111111111) << 12;
}
return aux;
}
/**
* @brief Sets immediate field for B-type
* @param value desired B value
*/
inline void set_imm_B(int32_t value) {
sc_dt::sc_uint<32> aux = value;
m_instr[31] = aux[12];
m_instr.range(30, 25) = aux.range(10, 5);
m_instr.range(11, 7) = aux.range(4, 1);
m_instr[6] = aux[11];
}
/**
* @brief Gets immediate field value for J-type
* @return immediate_J field
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_imm_J() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
int32_t aux = 0;
aux = m_instr[31] << 20;
aux |= m_instr.range(19, 12) << 12;
aux |= m_instr[20] << 11;
aux |= m_instr.range(30, 21) << 1;
/* bit extension (better way to do that?) */
if (m_instr[31] == 1) {
aux |= (0b111111111111) << 20;
}
return aux;
}
/**
* @brief Sets immediate field for J-type
* @param value desired J value
*/
inline void set_imm_J(int32_t value) {
sc_dt::sc_uint<32> aux = (value << 20);
m_instr[31] = aux[20];
m_instr.range(30, 21) = aux.range(10, 1);
m_instr[20] = aux[11];
m_instr.range(19, 12) = aux.range(19, 12);
}
/**
* @brief Returns shamt field for Shifts instructions
* @return value corresponding to inst(25:20)
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_shamt() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
return m_instr.range(25, 20);
}
/**
* @brief Returns CSR field for CSR instructions
* @return value corresponding to instr(31:20)
*/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
inline int32_t get_csr() const {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
int32_t aux = 0;
aux = m_instr.range(31, 20);
return aux;
}
/**
* @brief Access to opcode field
* @return return opcode field
*/
override keyword to virtual methods
2021-02-01 18:25:04 +08:00
inline int32_t opcode() const override {
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
return m_instr.range(6, 0);
}
added const keyword to const methods
2021-01-17 22:40:47 +08:00
bool Exec_LUI() const;
bool Exec_AUIPC() const;
bool Exec_JAL() const;
bool Exec_JALR() const;
bool Exec_BEQ() const;
bool Exec_BNE() const;
bool Exec_BLT() const;
bool Exec_BGE() const;
bool Exec_BLTU() const;
bool Exec_BGEU() const;
bool Exec_LB() const;
bool Exec_LH() const;
bool Exec_LW() const;
bool Exec_LBU() const;
bool Exec_LHU() const;
bool Exec_SB() const;
bool Exec_SH() const;
bool Exec_SW() const;
bool Exec_SBU() const;
bool Exec_SHU() const;
bool Exec_ADDI() const;
bool Exec_SLTI() const;
bool Exec_SLTIU() const;
bool Exec_XORI() const;
bool Exec_ORI() const;
bool Exec_ANDI() const;
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
bool Exec_SLLI();
added const keyword to const methods
2021-01-17 22:40:47 +08:00
bool Exec_SRLI() const;
bool Exec_SRAI() const;
bool Exec_ADD() const;
bool Exec_SUB() const;
bool Exec_SLL() const;
bool Exec_SLT() const;
bool Exec_SLTU() const;
bool Exec_XOR() const;
bool Exec_SRL() const;
bool Exec_SRA() const;
bool Exec_OR() const;
bool Exec_AND() const;
bool Exec_FENCE() const;
bool Exec_ECALL() const;
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
bool Exec_EBREAK();
added const keyword to const methods
2021-01-17 22:40:47 +08:00
bool Exec_CSRRW() const;
bool Exec_CSRRS() const;
bool Exec_CSRRC() const;
bool Exec_CSRRWI() const;
bool Exec_CSRRSI() const;
bool Exec_CSRRCI() const;
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
/*********************** Privileged Instructions ******************************/
added const keyword to const methods
2021-01-17 22:40:47 +08:00
bool Exec_MRET() const;
bool Exec_SRET() const;
bool Exec_WFI() const;
bool Exec_SFENCE() const;
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
/**
* @brief Executes default ISA instruction
* @param inst instruction to execute
* @return true if PC is affected by instruction
*/
trivial changes to increase performance
2021-01-15 16:09:52 +08:00
bool process_instruction(Instruction *inst);
Major refactoring! * A_Instruction, C_Instruction and M_Instruction renamed to *_extension * These files decode and executes extensions * These classes use a new base clase extension_base * Execute & Instruction classes heavyly modified: * Execute now is BASE_ISA and decodes and executes base ISA, Zicsr & Zifencei * Instruction keeps the instruction being executed, nothing else * Add memory interface to ISS to clear the code and the structure * Removed "using namespace " directives, all classes are called using their namespace * Added proper header to each file * Added license to all files
2020-06-02 19:08:38 +08:00
/**
* @brief Decodes opcode of instruction
* @return opcode of instruction
*/
opCodes decode();
};
#endif