@Override
	public String toString() {
		StringBuilder sb = new StringBuilder("[ins(" + bitstart + "," + bitend + ")");
		if (signbit) {
			sb.append(", signed");
		}
		if (bigendian) {
			sb.append(", bigendian");
		}
		sb.append(", bytes " + bytestart + "-" + byteend);
		sb.append(", shift=" + shift);
		sb.append("]");
		return sb.toString();
	}
Swap the least sig -size- bytes in -val-
@param val    value to be byte swapped
@param size   number of bytes involved in swap
@return the byte swapped value
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/expression/TokenField.java