@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("ctx&");
		for (int i = 0; i < num; i++) {
			sb.append("SS:SS:SS:SS:");
		}
		sb.append(NumericUtilities.convertMaskToHexString(mask, 8, false, 2, ":"));
		sb.append(" := ");
		sb.append(patexp);
		sb.append("( << ");
		sb.append(shift);
		sb.append(")");
		return sb.toString();
	}
An operation on the context (bit-packed form) of an instruction
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/ContextOp.java