🚀 go-pugleaf

Hi!

While working on a research on the usability of redundant arithmetic in general
purpose processors I stumbled upon a few problems. Maybe they aren't very big,
but I can't find the answer nonetheless. I'd like to ask the people on this
newsgroup for a solution.

It is all about carry sum redundancy. I know how it works, but in none of the
articles was something about the representation of negative numbers using carry
sum redundancy. Could somebody please tell me how one represents negative numbers
in carry sum redundancy?

The other problem I had was with the difference between carry sum redundancy and
signed digit redundancy. I mean, is there a difference in usage of hardware, speed
or complexity of the circuits needed?

Any help is much appreciated.

Greetings,

Maarten Hofman.