void setLocation(Address p1NewAddress) {
		if (p1NewAddress.equals(p1CurrentAddress))
			return;
		p1CurrentAddress = p1NewAddress;
		locationChanged(p1CurrentAddress);
	}
set the Diff controller's current address to the specified address.
@param p1NewAddress the address
This address should be derived from the p1 program.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/DiffController.java