public void setContextWord(int i, int val, int mask) {
		context[i] = (context[i] & (~mask)) | (mask & val);
	}
Get bits from context into an int
@param startbit is the index of the first bit to fetch
@param bitsize number of bits (range: 1 - 32)
@return the packed bits
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighParserContext.java