FLOATING-POINT DATAPATHS WITH ONLINE BUILT-IN SELF SPEED TEST

This paper describes floating-point (FP) datapaths developed for graph ics and simulation applications, The datapaths are fabricated using 0. 35-mu m CMOS technology and embedded in a 125-MHz, 291-MFLOPS vector p ipelined processor for use in supercomputers, A new online test techni que has been developed for the purpose of improving reliability under actual operating conditions, The technique makes it easy to detect not only static faults but also delay faults, which has traditionally bee n difficult.