Class simtix::Instr

ClassList > simtix > Instr

Base class for all different kinds of Instructions. More...

• #include <instr.h>

Inherited by the following classes: simtix::InstrAuipc, simtix::InstrBranch, simtix::InstrFormosa, simtix::InstrJal, simtix::InstrJalr, simtix::InstrLoad, simtix::InstrLui, simtix::InstrOp, simtix::InstrOpFp, simtix::InstrOpFused, simtix::InstrOpImm, simtix::InstrStore, simtix::InstrSystem, simtix::InstrTrap

Public Types

Type	Name
enum uint8_t	ExecutionUnit
enum uint8_t	Opcode Opcode definitions.

Public Functions

Type	Name
virtual void	Assign (const Instr * other)
virtual bool	CanCommit () const = 0
virtual bool	CanExecute () const = 0
virtual bool	CanIssue () const = 0
virtual bool	CanRetire () const = 0
virtual void	Commit () = 0
virtual void	Decode ()
virtual void	Execute () = 0
virtual void	Issue ()
virtual void	OperandCollect () = 0
virtual void	Reset ()
virtual bool	barrier_valid () const
virtual bool	exception_valid () const
ExecutionUnit	execution_unit () const
bool	illegal () const
uint32_t	iword () const
virtual bool	may_change_ctrl_flow () const
uint8_t	opcode () const
void	set_ssw (std::optional< uint32_t > ssw)
uint32_t	sswid () const
uint8_t	tswid () const
uint32_t	wid () const
uint64_t	wpc () const

Public Static Functions

Type	Name
constexpr uint32_t	BitMask (uint32_t width)
uint8_t	DecodeFunct3 (uint32_t iword)
uint8_t	DecodeFunct7 (uint32_t iword)
uint8_t	DecodeOpcode (uint32_t iword)
uint8_t	DecodeRd (uint32_t iword)
uint8_t	DecodeRs1 (uint32_t iword)
uint8_t	DecodeRs2 (uint32_t iword)

Protected Attributes

Type	Name
std::vector< Thread * >	active_threads_
ExecutionUnit	execution_unit_ = kALU
uint8_t	funct3_ = 0
uint8_t	funct7_ = 0
bool	illegal_ = false
uint32_t	iword_
std::string	mnemonic_
uint8_t	opcode_ = 0
uint8_t	rd_ = 0
uint8_t	rs1_ = 0
uint8_t	rs2_ = 0
std::optional< uint32_t >	ssw_
uint8_t	tswid_ = 0
Warp *	warp_
uint64_t	wpc_

Protected Functions

Type	Name
	Instr (Warp * warp, uint32_t iword, uint64_t wpc)
virtual void	Reinitialize (Warp * warp, uint32_t iword, uint64_t wpc)
virtual	~Instr () = default

Detailed Description

This is an abstract class that defines multiple API to perform different operations to an instruction.

Public Types Documentation

enum ExecutionUnit

enum simtix::Instr::ExecutionUnit {
    kALU = 0,
    kLSU,
    kMul,
    kDiv,
    kFPU
};

---

enum Opcode

Opcode definitions.

enum simtix::Instr::Opcode {
    kLoad = 0b0000011,
    kStore = 0b0100011,
    kBranch = 0b1100011,
    kCustom1 = 0b0101011,
    kOpImm = 0b0010011,
    kOp = 0b0110011,
    kSystem = 0b1110011,
    kAuipc = 0b0010111,
    kLui = 0b0110111,
    kOpImm32 = 0b0011011,
    kOp32 = 0b0111011,
    kFmadd = 0b1000011,
    kFmsub = 0b1000111,
    kFnmsub = 0b1001011,
    kFnmadd = 0b1001111,
    kOpFp = 0b1010011,
    kJal = 0b1101111,
    kJalr = 0b1100111
};

---

Public Functions Documentation

function Assign

virtual void simtix::Instr::Assign (
    const Instr * other
) 

---

function CanCommit

virtual bool simtix::Instr::CanCommit () const = 0

---

function CanExecute

virtual bool simtix::Instr::CanExecute () const = 0

---

function CanIssue

virtual bool simtix::Instr::CanIssue () const = 0

---

function CanRetire

virtual bool simtix::Instr::CanRetire () const = 0

---

function Commit

virtual void simtix::Instr::Commit () = 0

---

function Decode

virtual void simtix::Instr::Decode () 

---

function Execute

virtual void simtix::Instr::Execute () = 0

---

function Issue

virtual void simtix::Instr::Issue () 

---

function OperandCollect

virtual void simtix::Instr::OperandCollect () = 0

---

function Reset

virtual void simtix::Instr::Reset () 

---

function barrier_valid

inline virtual bool simtix::Instr::barrier_valid () const

---

function exception_valid

inline virtual bool simtix::Instr::exception_valid () const

---

function execution_unit

inline ExecutionUnit simtix::Instr::execution_unit () const

---

function illegal

inline bool simtix::Instr::illegal () const

---

function iword

inline uint32_t simtix::Instr::iword () const

---

function may_change_ctrl_flow

inline virtual bool simtix::Instr::may_change_ctrl_flow () const

---

function opcode

inline uint8_t simtix::Instr::opcode () const

---

function set_ssw

inline void simtix::Instr::set_ssw (
    std::optional< uint32_t > ssw
) 

---

function sswid

inline uint32_t simtix::Instr::sswid () const

---

function tswid

inline uint8_t simtix::Instr::tswid () const

---

function wid

inline uint32_t simtix::Instr::wid () const

---

function wpc

inline uint64_t simtix::Instr::wpc () const

---

Public Static Functions Documentation

function BitMask

static inline constexpr uint32_t simtix::Instr::BitMask (
    uint32_t width
) 

---

function DecodeFunct3

static inline uint8_t simtix::Instr::DecodeFunct3 (
    uint32_t iword
) 

---

function DecodeFunct7

static inline uint8_t simtix::Instr::DecodeFunct7 (
    uint32_t iword
) 

---

function DecodeOpcode

static inline uint8_t simtix::Instr::DecodeOpcode (
    uint32_t iword
) 

---

function DecodeRd

static inline uint8_t simtix::Instr::DecodeRd (
    uint32_t iword
) 

---

function DecodeRs1

static inline uint8_t simtix::Instr::DecodeRs1 (
    uint32_t iword
) 

---

function DecodeRs2

static inline uint8_t simtix::Instr::DecodeRs2 (
    uint32_t iword
) 

---

Protected Attributes Documentation

variable active_threads_

std::vector<Thread *> simtix::Instr::active_threads_;

---

variable execution_unit_

ExecutionUnit simtix::Instr::execution_unit_;

---

variable funct3_

uint8_t simtix::Instr::funct3_;

---

variable funct7_

uint8_t simtix::Instr::funct7_;

---

variable illegal_

bool simtix::Instr::illegal_;

---

variable iword_

uint32_t simtix::Instr::iword_;

---

variable mnemonic_

std::string simtix::Instr::mnemonic_;

---

variable opcode_

uint8_t simtix::Instr::opcode_;

---

variable rd_

uint8_t simtix::Instr::rd_;

---

variable rs1_

uint8_t simtix::Instr::rs1_;

---

variable rs2_

uint8_t simtix::Instr::rs2_;

---

variable ssw_

std::optional<uint32_t> simtix::Instr::ssw_;

---

variable tswid_

uint8_t simtix::Instr::tswid_;

---

variable warp_

Warp* simtix::Instr::warp_;

---

variable wpc_

uint64_t simtix::Instr::wpc_;

---

Protected Functions Documentation

function Instr

inline simtix::Instr::Instr (
    Warp * warp,
    uint32_t iword,
    uint64_t wpc
) 

---

function Reinitialize

inline virtual void simtix::Instr::Reinitialize (
    Warp * warp,
    uint32_t iword,
    uint64_t wpc
) 

---

function ~Instr

virtual simtix::Instr::~Instr () = default

---

---

The documentation for this class was generated from the following file projects/simtix/src/simtix/sm/instr.h