>Andy,
>
>I'm can't quite get the point you're making.
>
>The OP said that he has a hex number that he strips the 0x30 from and
>then tests to see if it is between 0 and 9.

Wrong.

He does not have a hex number. He has an unknown ASCII character that he
wants to test to see if it is in the range "0" - "9". He was trying to
convert it to a BCD digit by XORing the 0x30 portion of it first, but that
should have been done after the test.

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