Package ghidra.pcode.emulate

Class Emulate

java.lang.Object

ghidra.pcode.emulate.Emulate

Direct Known Subclasses:

ModifiedPcodeThread.GlueEmulate

public class Emulate
extends Object

Constructor Summary

Constructors

Constructor	Description
Emulate(SleighLanguage lang, MemoryState s, BreakTable b)

Method Summary

Modifier and Type	Method	Description
void	dispose()
void	executeBranch(PcodeOpRaw op)
void	executeBranchind(PcodeOpRaw op)
void	executeCall(PcodeOpRaw op)
void	executeCallind(PcodeOpRaw op)
void	executeCallother(PcodeOpRaw op)
void	executeConditionalBranch(PcodeOpRaw op)
void	executeIndirect(PcodeOpRaw op)
void	executeInstruction(boolean stopAtBreakpoint, TaskMonitor monitor)
void	executeLoad(PcodeOpRaw op)
void	executeMultiequal(PcodeOpRaw op)
void	executeStore(PcodeOpRaw op)
void	fallthruOp()
RegisterValue	getContextRegisterValue()	Returns the current context register value.
Address	getExecuteAddress()
EmulateExecutionState	getExecutionState()
Language	getLanguage()
Address	getLastExecuteAddress()
MemoryState	getMemoryState()
EmulateDisassemblerContext	getNewDisassemblerContext()
boolean	isInstructionStart()
void	setContextRegisterValue(RegisterValue regValue)	Sets the context register value at the current execute address.
void	setExecuteAddress(Address addr)

Methods inherited from class java.lang.Object

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

Constructor Details

Emulate

public Emulate(SleighLanguage lang,
 MemoryState s,
 BreakTable b)

Method Details

dispose

public void dispose()

getLanguage

public Language getLanguage()

isInstructionStart

public boolean isInstructionStart()

getExecutionState

public EmulateExecutionState getExecutionState()

Returns:

the current emulator execution state

getExecuteAddress

public Address getExecuteAddress()

getLastExecuteAddress

public Address getLastExecuteAddress()

getNewDisassemblerContext

public EmulateDisassemblerContext getNewDisassemblerContext()

getContextRegisterValue

public RegisterValue getContextRegisterValue()

Returns the current context register value. The context value returned reflects its state when the previously executed instruction was parsed/executed. The context value returned will feed into the next instruction to be parsed with its non-flowing bits cleared and any future context state merged in. If no instruction has been executed, the explicitly set context will be returned. A null value is returned if no context register is defined by the language or initial context has not been set.

setContextRegisterValue

public void setContextRegisterValue(RegisterValue regValue)

Sets the context register value at the current execute address. The Emulator should not be running when this method is invoked. Only flowing context bits should be set, as non-flowing bits will be cleared prior to parsing on instruction. In addition, any future context state set by the pcode emitter will take precedence over context set using this method. This method is primarily intended to be used to establish the initial context state.

Parameters:

regValue -

fallthruOp

public void fallthruOp()

executeConditionalBranch

public void executeConditionalBranch(PcodeOpRaw op)

executeBranch

public void executeBranch(PcodeOpRaw op)

executeCallother

public void executeCallother(PcodeOpRaw op)
                      throws UnimplementedCallOtherException

Throws:

UnimplementedCallOtherException

setExecuteAddress

public void setExecuteAddress(Address addr)

executeInstruction

public void executeInstruction(boolean stopAtBreakpoint,
 TaskMonitor monitor)
                        throws CancelledException,
LowlevelError,
InstructionDecodeException

Throws:

CancelledException

LowlevelError

InstructionDecodeException

getMemoryState

public MemoryState getMemoryState()

executeLoad

public void executeLoad(PcodeOpRaw op)

executeStore

public void executeStore(PcodeOpRaw op)

executeBranchind

public void executeBranchind(PcodeOpRaw op)

executeCall

public void executeCall(PcodeOpRaw op)

executeCallind

public void executeCallind(PcodeOpRaw op)

executeMultiequal

public void executeMultiequal(PcodeOpRaw op)

executeIndirect

public void executeIndirect(PcodeOpRaw op)