I like to work in Hex. A 16 bit word in Hex that has all high bits will read FFFF. And that Hex word with a hex value where the bit you want to check is high. For example, a word you read is 0xFFFF, or all high; you want to check for to see if bit 9 is high so you and the word with 0x100, if the result is 0x100 the bit is high, if it returns a 0 it's low. Also works to check multiple bits. See the crude VI attatched to see how this works.
Why do geeks think Halloween and Christmas occur on the same day?
Because 31oct = 25dec!