public MaskedLong zeroExtend() {
		int bits = 64 - Long.numberOfLeadingZeros(this.msk);
		return zeroExtend(bits);
	}
Zero extend the masked value, according to its mask, to a full long

<p>
All bits to the left of the leftmost defined bit are set to 0.

@return the zero-extended masked long
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/expr/MaskedLong.java