@Override
	public boolean applyTo(Program program) {
		ReferenceManager refMgr = program.getReferenceManager();
		refMgr.addShiftedMemReference(fromAddr, toAddr, shift, refType, source, opIndex);
		return true;
	}
Command constructor for adding a shifted memory reference
@param fromAddr address of the codeunit where the reference occurs
@param toAddr computed as the value of the operand at opIndex shifted
by the number of bits specified by shiftValue 
@param refType reference type - how the location is being referenced.
@param source the source of the reference
@param opIndex the operand index in the code unit where the reference occurs 
@param shift the number of bits to shift the value by
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/refs/AddShiftedMemRefCmd.java