One of us

[Garth Wilson]

I don't have a 16C, but I've used the number-conversion and Boolean-logic functions in the 41's Advantage module quite a bit for a few microcontroller-programming projects in my work over the years.  One of them, ten years ago, included a 7-byte (including a checksum byte) key's encryption & decryption the customer wanted to make reverse-engineering difficult, so I used a dizzying combination of rotates, XORs, NOTs, shuffles, and bit reversals, and I was cross-checking my work with a calculator program.  Usually though, I just use the conversions between hex and decimal for numbers of eight to sixteen bits or occasionally 24 or 32 bits, mostly for addition and subtraction, particularly of numbers in mixed bases, again for developing programs for microcontrollers.