public synchronized Byte getRepeatedByte() {
		refreshIfNeeded();
		byte b0 = bytes[0];
		if (length == 1) {
			return b0;
		}
		for (int i = 1; i < length; i++) {
			if (bytes[i] != b0) {
				return null;
			}
		}
		return b0;
	}
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