I seem to remember a VERY short instruction sequence which converted a binary value between 0 and 99 Decimal (between 0 and 143 octal) into two Decimal Ascii Characters, each between "0" and "9". However, I can't remember the actual instructions. Maybe I am confusing the memory with the following three instruction sequence from Billy Y... and if so, please ignore my request. sub #'9+1 ,r0 ; convert ascii byte add #9.+1 ,r0 ; to an integer bcc 20$ ; not a number Jerome Fine