@Override
	public Address getFallThrough() {
		if (fallThroughOverride == null) {
			return getDefaultFallThrough();
		}
		if (fallThroughOverride != Address.NO_ADDRESS) {
			return fallThroughOverride;
		}
		return null;
	}
Return the byte value repeated for all bytes within this instruction or null
if byte values vary.
@return repeated byte value or null if bytes vary
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/util/PseudoInstruction.java