Package ghidra.program.model.lang

Interface InstructionContext

All Known Implementing Classes:

InstructionDB, PseudoInstruction

public interface InstructionContext

InstructionContext is utilized by a shared instruction prototype to access all relevant instruction data and context-register storage needed during instruction parse and semantic pcode generation.

Method Summary

Modifier and Type	Method	Description
Address	getAddress()	Get the instruction address that this context corresponds to.
MemBuffer	getMemBuffer()	Get the read-only memory buffer containing the instruction bytes.
ParserContext	getParserContext()	Get the instruction parser context for the instruction which corresponds to this context object.
ParserContext	getParserContext(Address instructionAddress)	Get the instruction parser context which corresponds to the specified instruction address.
ProcessorContextView	getProcessorContext()	Get the read-only processor context containing the context-register state state at the corresponding instruction.

Method Detail

getAddress

Address getAddress()

Get the instruction address that this context corresponds to.

Returns:

instruction address

getProcessorContext

ProcessorContextView getProcessorContext()

Get the read-only processor context containing the context-register state state at the corresponding instruction. This is primarily used during the parse phase to provide the initial context-register state.

getMemBuffer

MemBuffer getMemBuffer()

Get the read-only memory buffer containing the instruction bytes. Its position will correspond to the instruction address.

Returns:

instruction memory buffer

getParserContext

ParserContext getParserContext()
                        throws MemoryAccessException

Get the instruction parser context for the instruction which corresponds to this context object.

Returns:

the instruction parser context for the instruction which corresponds to this context object.

Throws:

MemoryAccessException - if memory error occurred while resolving instruction details.

getParserContext

ParserContext getParserContext(Address instructionAddress)
                        throws UnknownContextException,
                               MemoryAccessException

Get the instruction parser context which corresponds to the specified instruction address. This may be obtained via either caching or by parsing the instruction at the specified address. The returned ParserContext may be cast to the prototype's implementation without checking. This method will throw an UnknownContextException if a compatible ParserContext is not found at the specified address.

Returns:

the instruction parser context at the specified instruction address

Throws:

UnknownContextException - if the instruction at the specified address was not previously parsed or attempting to instantiate context resulted in an exception.

MemoryAccessException - if memory error occurred while resolving instruction details.