Class simtix::InstrBranch

ClassList > simtix > InstrBranch

InstrBranch handles the operations for instruction with BRANCH opcode.More...

• #include <instr_branch.h>

Inherits the following classes: simtix::Instr

Public Types

Type	Name
typedef void(InstrBranch::*)()	Op

Public Types inherited from simtix::Instr

See simtix::Instr

Type	Name
enum uint8_t	ExecutionUnit
enum uint8_t	Opcode Opcode definitions.

Public Functions

Type	Name
virtual void	Assign (const Instr * other) override
virtual bool	CanCommit () override const
virtual bool	CanExecute () override const
virtual bool	CanIssue () override const
virtual bool	CanRetire () override const
virtual void	Commit () override
virtual void	Decode () override
virtual void	Execute () override
virtual void	Issue () override
virtual void	OperandCollect () override
virtual void	Reset () override
virtual bool	may_change_ctrl_flow () override const

Public Functions inherited from simtix::Instr

See simtix::Instr

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
int64_t	DecodeImmBtype (uint32_t iword)

Public Static Functions inherited from simtix::Instr

See simtix::Instr

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
bool	committed_ = false
bool	executed_ = false
int64_t	imm_ = 0
std::vector< uint64_t >	next_pc_
Op	op_ = nullptr
std::vector< int64_t >	rs1_data_
bool	rs1_data_ready_ = false
std::vector< int64_t >	rs2_data_
bool	rs2_data_ready_ = false

Protected Attributes inherited from simtix::Instr

See simtix::Instr

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
	InstrBranch (Warp * warp, uint32_t iword, uint64_t wpc)
virtual void	Reinitialize (Warp * warp, uint32_t iword, uint64_t wpc) override

Protected Functions inherited from simtix::Instr

See simtix::Instr

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

The branch instructions compare register data to see if jump conditions are met and update the program counter for each thread.

Public Types Documentation

typedef Op

using simtix::InstrBranch::Op =  void (InstrBranch::*)();

---

Public Functions Documentation

function Assign

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

Implements simtix::Instr::Assign

---

function CanCommit

inline virtual bool simtix::InstrBranch::CanCommit () override const

Implements simtix::Instr::CanCommit

---

function CanExecute

inline virtual bool simtix::InstrBranch::CanExecute () override const

Implements simtix::Instr::CanExecute

---

function CanIssue

virtual bool simtix::InstrBranch::CanIssue () override const

Implements simtix::Instr::CanIssue

---

function CanRetire

inline virtual bool simtix::InstrBranch::CanRetire () override const

Implements simtix::Instr::CanRetire

---

function Commit

virtual void simtix::InstrBranch::Commit () override

Implements simtix::Instr::Commit

---

function Decode

virtual void simtix::InstrBranch::Decode () override

Implements simtix::Instr::Decode

---

function Execute

virtual void simtix::InstrBranch::Execute () override

Implements simtix::Instr::Execute

---

function Issue

virtual void simtix::InstrBranch::Issue () override

Implements simtix::Instr::Issue

---

function OperandCollect

virtual void simtix::InstrBranch::OperandCollect () override

Implements simtix::Instr::OperandCollect

---

function Reset

virtual void simtix::InstrBranch::Reset () override

Implements simtix::Instr::Reset

---

function may_change_ctrl_flow

inline virtual bool simtix::InstrBranch::may_change_ctrl_flow () override const

Implements simtix::Instr::may_change_ctrl_flow

---

Public Static Functions Documentation

function DecodeImmBtype

static inline int64_t simtix::InstrBranch::DecodeImmBtype (
    uint32_t iword
) 

---

Protected Attributes Documentation

variable committed_

bool simtix::InstrBranch::committed_;

---

variable executed_

bool simtix::InstrBranch::executed_;

---

variable imm_

int64_t simtix::InstrBranch::imm_;

---

variable next_pc_

std::vector<uint64_t> simtix::InstrBranch::next_pc_;

---

variable op_

Op simtix::InstrBranch::op_;

---

variable rs1_data_

std::vector<int64_t> simtix::InstrBranch::rs1_data_;

---

variable rs1_data_ready_

bool simtix::InstrBranch::rs1_data_ready_;

---

variable rs2_data_

std::vector<int64_t> simtix::InstrBranch::rs2_data_;

---

variable rs2_data_ready_

bool simtix::InstrBranch::rs2_data_ready_;

---

Protected Functions Documentation

function InstrBranch

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

---

function Reinitialize

virtual void simtix::InstrBranch::Reinitialize (
    Warp * warp,
    uint32_t iword,
    uint64_t wpc
) override

Implements simtix::Instr::Reinitialize

---

---

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