Base class for floating point operations. More...

#include <floating.hh>

Inheritance diagram for PowerISA::FloatOp:

Protected Member Functions
	FloatOp (const char *mnem, MachInst _machInst, OpClass __opClass)
	Constructor. More...

bool	isNan (uint32_t val_bits) const

bool	isNan (uint64_t val_bits) const

bool	isNan (float val) const

bool	isNan (double val) const

bool	isSnan (uint32_t val_bits) const

bool	isQnan (uint32_t val_bits) const

bool	isInfinity (uint32_t val_bits) const

bool	isNormalized (uint32_t val_bits) const

bool	isDenormalized (uint32_t val_bits) const

bool	isZero (uint32_t val_bits) const

bool	isNegative (uint32_t val_bits) const

uint32_t	makeCRField (double a, double b) const

std::string	generateDisassembly (Addr pc, const Loader::SymbolTable *symtab) const override
	Internal function to generate disassembly string. More...

Protected Member Functions inherited from PowerISA::PowerStaticInst
	PowerStaticInst (const char *mnem, MachInst _machInst, OpClass __opClass)

uint32_t	insertCRField (uint32_t cr, uint32_t bf, uint32_t value) const

void	printReg (std::ostream &os, RegId reg) const
	Print a register name for disassembly given the unique dependence tag number (FP or int). More...

std::string	generateDisassembly (Addr pc, const Loader::SymbolTable *symtab) const override
	Internal function to generate disassembly string. More...

void	advancePC (PowerISA::PCState &pcState) const override

size_t	asBytes (void *buf, size_t max_size) override
	Instruction classes can override this function to return a a representation of themselves as a blob of bytes, generally assumed to be that instructions ExtMachInst. More...

Protected Member Functions inherited from StaticInst
void	setRegIdxArrays (RegIdArrayPtr src, RegIdArrayPtr dest)
	Set the pointers which point to the arrays of source and destination register indices. More...

	StaticInst (const char *_mnemonic, TheISA::ExtMachInst _machInst, OpClass __opClass)
	Constructor. More...

template<typename T >
size_t	simpleAsBytes (void *buf, size_t max_size, const T &t)

Protected Attributes
bool	rcSet

Protected Attributes inherited from StaticInst
std::bitset< Num_Flags >	flags
	Flag values for this instruction. More...

OpClass	_opClass
	See opClass(). More...

int8_t	_numSrcRegs
	See numSrcRegs(). More...

int8_t	_numDestRegs
	See numDestRegs(). More...

int8_t	_numFPDestRegs
	The following are used to track physical register usage for machines with separate int & FP reg files. More...

int8_t	_numIntDestRegs

int8_t	_numCCDestRegs

int8_t	_numVecDestRegs
	To use in architectures with vector register file. More...

int8_t	_numVecElemDestRegs

int8_t	_numVecPredDestRegs

const char *	mnemonic
	Base mnemonic (e.g., "add"). More...

std::string *	cachedDisassembly
	String representation of disassembly (lazily evaluated via disassemble()). More...

Additional Inherited Members
Public Types inherited from StaticInst
using	RegIdArrayPtr = RegId(StaticInst::*)[]

Public Member Functions inherited from StaticInst
int8_t	numSrcRegs () const
	Number of source registers. More...

int8_t	numDestRegs () const
	Number of destination registers. More...

int8_t	numFPDestRegs () const
	Number of floating-point destination regs. More...

int8_t	numIntDestRegs () const
	Number of integer destination regs. More...

int8_t	numVecDestRegs () const
	Number of vector destination regs. More...

int8_t	numVecElemDestRegs () const
	Number of vector element destination regs. More...

int8_t	numVecPredDestRegs () const
	Number of predicate destination regs. More...

int8_t	numCCDestRegs () const
	Number of coprocesor destination regs. More...

bool	isNop () const

bool	isMemRef () const

bool	isLoad () const

bool	isStore () const

bool	isAtomic () const

bool	isStoreConditional () const

bool	isInstPrefetch () const

bool	isDataPrefetch () const

bool	isPrefetch () const

bool	isInteger () const

bool	isFloating () const

bool	isVector () const

bool	isControl () const

bool	isCall () const

bool	isReturn () const

bool	isDirectCtrl () const

bool	isIndirectCtrl () const

bool	isCondCtrl () const

bool	isUncondCtrl () const

bool	isSerializing () const

bool	isSerializeBefore () const

bool	isSerializeAfter () const

bool	isSquashAfter () const

bool	isFullMemBarrier () const

bool	isReadBarrier () const

bool	isWriteBarrier () const

bool	isNonSpeculative () const

bool	isQuiesce () const

bool	isUnverifiable () const

bool	isSyscall () const

bool	isMacroop () const

bool	isMicroop () const

bool	isDelayedCommit () const

bool	isLastMicroop () const

bool	isFirstMicroop () const

bool	isHtmStart () const

bool	isHtmStop () const

bool	isHtmCancel () const

bool	isHtmCmd () const

void	setFirstMicroop ()

void	setLastMicroop ()

void	setDelayedCommit ()

void	setFlag (Flags f)

OpClass	opClass () const
	Operation class. Used to select appropriate function unit in issue. More...

const RegId &	destRegIdx (int i) const
	Return logical index (architectural reg num) of i'th destination reg. More...

void	setDestRegIdx (int i, const RegId &val)

const RegId &	srcRegIdx (int i) const
	Return logical index (architectural reg num) of i'th source reg. More...

void	setSrcRegIdx (int i, const RegId &val)

virtual uint64_t	getEMI () const

virtual	~StaticInst ()

virtual Fault	execute (ExecContext xc, Trace::InstRecord traceData) const =0

virtual Fault	initiateAcc (ExecContext xc, Trace::InstRecord traceData) const

virtual Fault	completeAcc (Packet pkt, ExecContext xc, Trace::InstRecord *traceData) const

virtual void	advancePC (TheISA::PCState &pcState) const =0

virtual StaticInstPtr	fetchMicroop (MicroPC upc) const
	Return the microop that goes with a particular micropc. More...

virtual TheISA::PCState	branchTarget (const TheISA::PCState &pc) const
	Return the target address for a PC-relative branch. More...

virtual TheISA::PCState	branchTarget (ThreadContext *tc) const
	Return the target address for an indirect branch (jump). More...

bool	hasBranchTarget (const TheISA::PCState &pc, ThreadContext *tc, TheISA::PCState &tgt) const
	Return true if the instruction is a control transfer, and if so, return the target address as well. More...

virtual const std::string &	disassemble (Addr pc, const Loader::SymbolTable *symtab=nullptr) const
	Return string representation of disassembled instruction. More...

void	printFlags (std::ostream &outs, const std::string &separator) const
	Print a separator separated list of this instruction's set flag names on the given stream. More...

std::string	getName ()
	Return name of machine instruction. More...

Public Member Functions inherited from RefCounted
	RefCounted ()
	We initialize the reference count to zero and the first object to take ownership of it must increment it to one. More...

virtual	~RefCounted ()
	We make the destructor virtual because we're likely to have virtual functions on reference counted objects. More...

void	incref () const
	Increment the reference count. More...

void	decref () const
	Decrement the reference count and destroy the object if all references are gone. More...

Public Attributes inherited from StaticInst
const TheISA::ExtMachInst	machInst
	The binary machine instruction. More...

Static Public Attributes inherited from StaticInst
static StaticInstPtr	nullStaticInstPtr
	Pointer to a statically allocated "null" instruction object. More...

static StaticInstPtr	nopStaticInstPtr = new NopStaticInst
	Pointer to a statically allocated generic "nop" instruction object. More...

Detailed Description

Base class for floating point operations.

Definition at line 42 of file floating.hh.

Constructor & Destructor Documentation

◆ FloatOp()

PowerISA::FloatOp::FloatOp	(	const char *	mnem,
		MachInst	_machInst,
		OpClass	__opClass
	)

inlineprotected

Constructor.

Definition at line 49 of file floating.hh.

Member Function Documentation

◆ generateDisassembly()

std::string FloatOp::generateDisassembly	(	Addr	pc,
		const Loader::SymbolTable *	symtab
	)		const

overrideprotectedvirtual

Internal function to generate disassembly string.

Implements StaticInst.

Definition at line 34 of file floating.cc.

References StaticInst::_numDestRegs, StaticInst::_numSrcRegs, ccprintf(), StaticInst::destRegIdx(), StaticInst::mnemonic, PowerISA::PowerStaticInst::printReg(), StaticInst::srcRegIdx(), and ArmISA::ss.

◆ isDenormalized()

bool PowerISA::FloatOp::isDenormalized ( uint32_t val_bits ) const

inlineprotected

Definition at line 114 of file floating.hh.

References bits().

◆ isInfinity()

bool PowerISA::FloatOp::isInfinity ( uint32_t val_bits ) const

inlineprotected

Definition at line 99 of file floating.hh.

References bits().

◆ isNan() [1/4]

bool PowerISA::FloatOp::isNan ( double val ) const

inlineprotected

Definition at line 76 of file floating.hh.

References isNan(), and X86ISA::val.

◆ isNan() [2/4]

bool PowerISA::FloatOp::isNan ( float val ) const

inlineprotected

Definition at line 68 of file floating.hh.

References isNan(), and X86ISA::val.

◆ isNan() [3/4]

bool PowerISA::FloatOp::isNan ( uint32_t val_bits ) const

inlineprotected

Definition at line 56 of file floating.hh.

References bits().

Referenced by isNan(), and makeCRField().

◆ isNan() [4/4]

bool PowerISA::FloatOp::isNan ( uint64_t val_bits ) const

inlineprotected

Definition at line 62 of file floating.hh.

References bits().

◆ isNegative()

bool PowerISA::FloatOp::isNegative ( uint32_t val_bits ) const

inlineprotected

Definition at line 128 of file floating.hh.

References bits().

◆ isNormalized()

bool PowerISA::FloatOp::isNormalized ( uint32_t val_bits ) const

inlineprotected

Definition at line 106 of file floating.hh.

References bits().

◆ isQnan()

bool PowerISA::FloatOp::isQnan ( uint32_t val_bits ) const

inlineprotected

Definition at line 92 of file floating.hh.

References bits().

◆ isSnan()

bool PowerISA::FloatOp::isSnan ( uint32_t val_bits ) const

inlineprotected

Definition at line 85 of file floating.hh.

References bits().

◆ isZero()

bool PowerISA::FloatOp::isZero ( uint32_t val_bits ) const

inlineprotected

Definition at line 121 of file floating.hh.

References bits().

◆ makeCRField()

uint32_t PowerISA::FloatOp::makeCRField	(	double	a,
		double	b
	)		const

inlineprotected

Definition at line 135 of file floating.hh.

References ArmISA::a, ArmISA::b, ArmISA::c, and isNan().

Member Data Documentation

◆ rcSet

bool PowerISA::FloatOp::rcSet

protected

Definition at line 46 of file floating.hh.

The documentation for this class was generated from the following files:

arch/power/insts/floating.hh
arch/power/insts/floating.cc

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FloatOp()

Member Function Documentation

◆ generateDisassembly()

◆ isDenormalized()

◆ isInfinity()

◆ isNan() [1/4]

◆ isNan() [2/4]

◆ isNan() [3/4]

◆ isNan() [4/4]

◆ isNegative()

◆ isNormalized()

◆ isQnan()

◆ isSnan()

◆ isZero()

◆ makeCRField()

Member Data Documentation

◆ rcSet