BIB-VERSION:: CS-TR-v2.0
          ID:: STAN//CSL-TR-93-554
       ENTRY:: November 02, 1994
ORGANIZATION:: Stanford University, Computer Systems Laboratory
       TITLE:: Using a Floating-Point Multiplier's Internals for High-Radix
               Division and Square Root
        TYPE:: Technical Report
      AUTHOR:: Schwarz, Eric M.
      AUTHOR:: Flynn, Michael J.
        DATE:: January 1993
       PAGES:: 50
    ABSTRACT:: A method for obtaining high-precision approximations of
               high-order arithmetic operations at low-cost is presented in
               this study. Specifically, high-precision approximations of
               the reciprocal (12 bits worst case) and square root (16 bits)
               operations are obtained using the internal hardware of a
               floating-point multiplier without the use of look-up tables.
               The additional combinatorial logic necessary is very small
               due to the reuse of existing hardware. These low-cost
               high-precision approximations are used by iterative
               algorithms to perform the operations of division and square
               root. The method presented also applies to several other
               high-order arithmetic operations. Thus, high-radix algorithms
               for high-order arithmetic operations such as division and
               square root are possible at low-cost.
       NOTES:: [Adminitrivia V1/Prg/19941102]
         END:: STAN//CSL-TR-93-554