Dear Colleagues, Just a quick note to thank all of you who helped with my enquiry about converting a 48-bit binary number to ASCII. I've now achieved this with complete satisfaction. My code is basically Mike Keitz's (with just a small modification to make it relocatable) which Jason Sachs reposted on the 6th September. Mike's code actually produces BCD, so I've simply unpacked it into ASCII. Worst case run time, from six FFs to a fifteen digit ASCII string is 4.5ms (estimated). This is well within my requirements so I regard this as a complete success. Again, thanks to all who contributed, and especially to Jason and Mike. Steve Steve Thackery Suffolk, England. Web Site: http://www.btinternet.com/~stevethack/