On the implementation of arithmetic support functions for generalized signed-digit number systems
Behrooz Parhami · IEEE Transactions on Computers · 1993
Ordinary signed-digit (OSD) number representation systems have been defined for any radix r>or=3 with digit values ranging over the set (- alpha . . .,-1,0,1. . ., alpha ), where alpha is an arbitrary integer in the range r/20 and beta >0) explicitly. Zero detection, sign detection, and overflow handling are also treated in depth.>