I have a problem with displaying the 8-bit DAC output as a decimal number on 7-segment display. Do you think that preparing a huge truth table and using decoders and gates can help?
I suppose you meant ADC's output!
Indeed it is not trivial, specifically when converting the 8-bit binary to 10-bit BCD!
But converting the 10-bit BCD to 7-segment is easy, using for example IC-4511 or 7447!
A Truth table is one way, perhaps on a PROM!
also see **broken link removed**
Added after 42 minutes:
Btw, if you merely want to monitor the ADC's, a Hex Display will be much easier to implement!