I posted this in another thread and someone replied the thread is very old. I post this now also to state : threads are here to stay for everyone to see and use whenever they want.
Another reason is : there have been many questions in regards to this as well as related to. Some answers suggest ROM addressing ( look up tables ) which is NOT a good idea unless there are preprogrammed ones for 8 bit, 8 bit multiplication which I have not seen. Also, the standard approach may as well prove to be much faster. So, here is the standard approach as posted in another thread :
http://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits : 74558 8 bit by 8 bit multiplier
Another reason is : there have been many questions in regards to this as well as related to. Some answers suggest ROM addressing ( look up tables ) which is NOT a good idea unless there are preprogrammed ones for 8 bit, 8 bit multiplication which I have not seen. Also, the standard approach may as well prove to be much faster. So, here is the standard approach as posted in another thread :
http://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits : 74558 8 bit by 8 bit multiplier