public void writeBits(StringBuffer buf) {
		for (int chunk = 0; chunk < this.bits.length; chunk++) {
			buf.append(' ');
			byte dchomp = this.dits[chunk];
			int bchomp = this.bits[chunk];
			for (int pos = 128; pos > 0; pos >>>= 1) {
				if ((dchomp & pos) == 0) {
					buf.append('.');
				}
				else {
					buf.append((bchomp & pos) != 0 ? '1' : '0');
				}
			}
		}
	}
Get number of bits that are ditted (don't care)

@return number of ditted bits (don't care)
Ghidra/Features/Base/src/main/java/ghidra/util/bytesearch/DittedBitSequence.java