Quick reference

Class Name	Description
HEADER	Start node for control-flow graph. Performs no operation.
METHODHEADER	Subclass of HEADER with additional method-argument information.
FOOTER	End node for control-flow graph. Performs no operation.
AGET	Fetch from an indexed array element.
ALENGTH	Access the length of an array.
ANEW	Create a new array object (uninitialized).
ASET	Assign a value to an indexed array element.
CALL	Invoke an object method.
CJMP	Conditional jump based on a boolean value.
COMPONENTOF	Determine whether an object reference is an instance of the component type of an array reference; result is a boolean value.
CONST	Assign numeric or string constants to compiler temporary variables.
GET	Fetch the value of an object field.
INSTANCEOF	Determine whether an object reference is an instance of a given class; result is a boolean value.
MOVE	Assign one compiler temporary to another.
NEW	Create a new uninitialized class object.
NOP	Do nothing.
OPER	Perform a n-ary operation on set of compiler temporaries.
PHI	$\phi$-function representation.
RETURN	Return a value for this method invocation.
SET	Assign a value to an object field.
SWITCH	Jump to one of multiple targets, depending on a key value.
THROW	Return an exception for this method invocation.