Information about the INT_ZEXT op-code. More...

#include <typeop.hh>

Inheritance diagram for ghidra::TypeOpIntZext:

Public Member Functions
	TypeOpIntZext (TypeFactory *t)
	Constructor.

virtual void	push (PrintLanguage lng, const PcodeOp op, const PcodeOp *readOp) const
	Push the specific PcodeOp to the emitter's RPN stack. More...

virtual string	getOperatorName (const PcodeOp *op) const
	Get the name of the op-code as it should be displayed in context. More...

virtual Datatype *	getInputCast (const PcodeOp op, int4 slot, const CastStrategy castStrategy) const
	Find the data-type of the input to a specific PcodeOp. More...

Public Member Functions inherited from ghidra::TypeOpFunc
	TypeOpFunc (TypeFactory *t, OpCode opc, const string &n, type_metatype mout, type_metatype min)
	Constructor.

virtual Datatype *	getOutputLocal (const PcodeOp *op) const
	Find the minimal (or suggested) data-type of an output to this op-code. More...

virtual Datatype *	getInputLocal (const PcodeOp *op, int4 slot) const
	Find the minimal (or suggested) data-type of an input to this op-code. More...

virtual void	printRaw (ostream &s, const PcodeOp *op)
	Print (for debugging purposes) this specific PcodeOp to the stream. More...

Public Member Functions inherited from ghidra::TypeOp
	TypeOp (TypeFactory *t, OpCode opc, const string &n)
	Constructor. More...

virtual	~TypeOp (void)
	Destructor.

const string &	getName (void) const
	Get the display name of the op-code.

OpCode	getOpcode (void) const
	Get the op-code value.

uint4	getFlags (void) const
	Get the properties associated with the op-code.

OpBehavior *	getBehavior (void) const
	Get the behavior associated with the op-code.

uintb	evaluateUnary (int4 sizeout, int4 sizein, uintb in1) const
	Emulate the unary op-code on an input value. More...

uintb	evaluateBinary (int4 sizeout, int4 sizein, uintb in1, uintb in2) const
	Emulate the binary op-code on an input value. More...

uintb	recoverInputBinary (int4 slot, int4 sizeout, uintb out, int4 sizein, uintb in) const
	Reverse the binary op-code operation, recovering a constant input value. More...

uintb	recoverInputUnary (int4 sizeout, uintb out, int4 sizein) const
	Reverse the unary op-code operation, recovering a constant input value. More...

bool	isCommutative (void) const
	Return true if this op-code is commutative. More...

bool	inheritsSign (void) const
	Return true if the op-code inherits its signedness from its inputs.

bool	inheritsSignFirstParamOnly (void) const
	Return true if the op-code inherits its signedness from only its first input.

bool	isShiftOp (void) const
	Return true if the op-code is a shift (INT_LEFT, INT_RIGHT, or INT_SRIGHT)

bool	isArithmeticOp (void) const
	Return true if the opcode is INT_ADD, INT_MULT, INT_DIV, INT_REM, or other arithmetic op.

bool	isLogicalOp (void) const
	Return true if the opcode is INT_AND, INT_OR, INT_XOR, or other logical op.

bool	isFloatingPointOp (void) const
	Return true if the opcode is FLOAT_ADD, FLOAT_MULT, or other floating-point operation.

virtual Datatype *	getOutputToken (const PcodeOp op, CastStrategy castStrategy) const
	Find the data-type of the output that would be assigned by a compiler. More...

virtual Datatype *	propagateType (Datatype alttype, PcodeOp op, Varnode invn, Varnode outvn, int4 inslot, int4 outslot)
	Propagate an incoming data-type across a specific PcodeOp. More...

Additional Inherited Members
Public Types inherited from ghidra::TypeOp
enum	{ inherits_sign = 1, inherits_sign_zero = 2, shift_op = 4, arithmetic_op = 8, logical_op = 0x10, floatingpoint_op = 0x20 }

Static Public Member Functions inherited from ghidra::TypeOp
static void	registerInstructions (vector< TypeOp > &inst, TypeFactory tlst, const Translate *trans)
	Build a map from op-code value to the TypeOp information objects. More...

static void	selectJavaOperators (vector< TypeOp *> &inst, bool val)
	Toggle Java specific aspects of the op-code information. More...

Protected Member Functions inherited from ghidra::TypeOp
virtual void	setSymbol (const string &nm)
	Set the display symbol associated with the op-code.

Protected Attributes inherited from ghidra::TypeOp
TypeFactory *	tlst
	Pointer to data-type factory.

OpCode	opcode
	The op-code value.

uint4	opflags
	Cached pcode-op properties for this op-code.

uint4	addlflags
	Additional properties.

string	name
	Symbol denoting this operation.

OpBehavior *	behave
	Object for emulating the behavior of the op-code.

Detailed Description

Information about the INT_ZEXT op-code.

Member Function Documentation

◆ getInputCast()

Datatype * ghidra::TypeOpIntZext::getInputCast	(	const PcodeOp *	op,
		int4	slot,
		const CastStrategy *	castStrategy
	)		const

virtual

Find the data-type of the input to a specific PcodeOp.

Calculate the actual data-type of the input to the specific PcodeOp. A null result indicates the input data-type is the same as or otherwise doesn't need a cast from the data-type of the actual input Varnode

Parameters

op	is the specific PcodeOp
slot	is the input to consider
castStrategy	is the current casting strategy

Returns: the data-type

Reimplemented from ghidra::TypeOp.

References ghidra::CastStrategy::castStandard(), ghidra::CastStrategy::checkIntPromotionForExtension(), ghidra::Varnode::getHighTypeReadFacing(), ghidra::PcodeOp::getIn(), and ghidra::PcodeOp::inputTypeLocal().

◆ getOperatorName()

string ghidra::TypeOpIntZext::getOperatorName ( const PcodeOp * op ) const

virtual

Get the name of the op-code as it should be displayed in context.

Depending on the context, the same op-code may get displayed in different ways.

Parameters

op	is the PcodeOp context

Returns: the display token

Reimplemented from ghidra::TypeOp.

References ghidra::PcodeOp::getIn(), ghidra::PcodeOp::getOut(), ghidra::Varnode::getSize(), and ghidra::TypeOp::name.

◆ push()

virtual void ghidra::TypeOpIntZext::push	(	PrintLanguage *	lng,
		const PcodeOp *	op,
		const PcodeOp *	readOp
	)		const

inlinevirtual

Push the specific PcodeOp to the emitter's RPN stack.

Given a specific language and PcodeOp, emit the expression rooted at the operation.

Parameters

lng	is the PrintLanguage to emit
op	is the specific PcodeOp
readOp	is the PcodeOp consuming the output (or null)

Implements ghidra::TypeOp.

References ghidra::TypeOp::getInputCast(), ghidra::TypeOp::getOperatorName(), and ghidra::PrintLanguage::opIntZext().

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

typeop.hh
typeop.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ getInputCast()

◆ getOperatorName()

◆ push()