> which letter was received, ie. H'42' - H'42' would equal Z bit set

That or XOR will work

A computed goto would be tidier, just keep the low bits for the jump
size. Although the end result would be the same as far as program
flow is concerned. Just a thought

If you don't have a h/w emulator, then I'd suggest saving the received
characters in a RAM array, then at some point transfer them to
EEPROM so they can be read by your programmer. If your program
has time to save to EEPROM between chars then save to EEPROM
directly. Suprising what you actually receive isn't what you thought you
should. Or you could echo the received bytes to a port. I have a
small PCB with 8 buffered LEDs for times like these, or for more
complicated data a serial connection to a PIC + LCD

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads