- super(defaultValue ? trueName : falseName, new MnemonicPair(trueName, BitVector.SINGLE_1),
- new MnemonicPair(falseName, BitVector.SINGLE_0));
+ super(defaultValue ? trueName : falseName, new MnemonicPair("X", SINGLE_U), new MnemonicPair(trueName, SINGLE_1),
+ new MnemonicPair(falseName, SINGLE_0));