marc@CS.UCLA.EDU (09/26/87)
There has been a great deal of discussion lately on Error Correcting Codes. I haven't seen anything on implementation issues though. We are presently involved with a couple of designs which make use of Hamming code. More specifically, I am working on the design of a 32-bit processor with fault-tolerance capabilities (CMOS). We use a chain of transmission gates in order to obtain the parity bits necessary to encode the Hamming bits. The timing is not great but the design is quite simple. Does anyone have a fast method for encoding Hamming bits? Something in the order of 30ns-40ns for 3 micron technology seems like a good target for us. Marc Tremblay marc@CS.UCLA.EDU ...!(ihnp4,ucbvax)!ucla-cs!marc Computer Science Department, UCLA