public PointerTypedefBuilder bitMask(long unsignedMask) {
		OffsetMaskSettingsDefinition.DEF.setValue(typedef.getDefaultSettings(), unsignedMask);
		return this;
	}
Update pointer offset bit-mask when translating to an absolute memory offset.
If specified, bit-mask will be AND-ed with stored offset prior to any 
specified bit-shift.
@param unsignedMask unsigned bit-mask
@return this builder
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/PointerTypedefBuilder.java