Package ghidra.program.model.lang

Class ProgramProcessorContext

java.lang.Object

ghidra.program.model.lang.ProgramProcessorContext

All Implemented Interfaces:

ProcessorContext, ProcessorContextView

public class ProgramProcessorContext
extends java.lang.Object
implements ProcessorContext

Implementation for the program processor context interface

Constructor Summary

Constructors

Constructor	Description
ProgramProcessorContext(ProgramContext context, Address addr)	Constructs a new ProgramProcessorContext that will have the processor state be the state of the given programContext at the given address

Method Summary

Modifier and Type	Method	Description
void	clearRegister(Register register)	Clears the register within this context.
Register	getBaseContextRegister()
Register	getRegister(java.lang.String name)	Get a Register given the name of a register
java.util.List<Register>	getRegisters()	Returns all the Registers for the processor as an unmodifiable list
RegisterValue	getRegisterValue(Register register)	Get the RegisterValue for the given register.
java.math.BigInteger	getValue(Register register, boolean signed)	Get the contents of a processor register as a BigInteger object
boolean	hasValue(Register register)	Returns true if a value is defined for the given register.
void	setRegisterValue(RegisterValue value)	Sets the specified register value within this context.
void	setValue(Register register, java.math.BigInteger value)	Sets the value for a Register.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProgramProcessorContext

public ProgramProcessorContext(ProgramContext context,
                               Address addr)

Constructs a new ProgramProcessorContext that will have the processor state be the state of the given programContext at the given address

Parameters:

context - the programContext which contains the register state at every address

addr - the address at which to get the register state

Method Detail

getBaseContextRegister

public Register getBaseContextRegister()

Specified by:

getBaseContextRegister in interface ProcessorContextView

Returns:

the base processor context register or null if one has not been defined

getRegisters

public java.util.List<Register> getRegisters()

Description copied from interface: ProcessorContextView

Returns all the Registers for the processor as an unmodifiable list

Specified by:

getRegisters in interface ProcessorContextView

Returns:

all the Registers for the processor

getRegister

public Register getRegister(java.lang.String name)

Description copied from interface: ProcessorContextView

Get a Register given the name of a register

Specified by:

getRegister in interface ProcessorContextView

Parameters:

name - the name of the register.

Returns:

The register with the given name.

getValue

public java.math.BigInteger getValue(Register register,
                                     boolean signed)

Description copied from interface: ProcessorContextView

Get the contents of a processor register as a BigInteger object

Specified by:

getValue in interface ProcessorContextView

Parameters:

register - register to get the value for

Returns:

a BigInteger object containing the value of the register if a value exists, otherwise null.

getRegisterValue

public RegisterValue getRegisterValue(Register register)

Description copied from interface: ProcessorContextView

Get the RegisterValue for the given register.

Specified by:

getRegisterValue in interface ProcessorContextView

Parameters:

register - register to get the value for

Returns:

RegisterValue object containing the value of the register if a value exists, otherwise null.

setValue

public void setValue(Register register,
                     java.math.BigInteger value)
              throws ContextChangeException

Description copied from interface: ProcessorContext

Sets the value for a Register.

Specified by:

setValue in interface ProcessorContext

Parameters:

register - the register to have its value set

value - the value for the register (null is not permitted).

Throws:

ContextChangeException - an illegal attempt to change context was made

setRegisterValue

public void setRegisterValue(RegisterValue value)
                      throws ContextChangeException

Description copied from interface: ProcessorContext

Sets the specified register value within this context.

Specified by:

setRegisterValue in interface ProcessorContext

Parameters:

value - register value

Throws:

ContextChangeException - an illegal attempt to change context was made

clearRegister

public void clearRegister(Register register)
                   throws ContextChangeException

Description copied from interface: ProcessorContext

Clears the register within this context.

Specified by:

clearRegister in interface ProcessorContext

Parameters:

register - register to be cleared.

Throws:

ContextChangeException - an illegal attempt to change context was made

hasValue

public boolean hasValue(Register register)

Description copied from interface: ProcessorContextView

Returns true if a value is defined for the given register.

Specified by:

hasValue in interface ProcessorContextView

Parameters:

register - the register to check for a value.

Returns:

true if the given register has a value.

See Also:

ProcessorContextView.hasValue(ghidra.program.model.lang.Register)