Decimal arithmetic is regaining popularity in the computing community due to the growing importance of commercial, financial, and Internet-based applications, which process decimal data. This paper presents an iterative decimal multiplier, which is operates at high clock frequencies and scales well to large operand sizes. The multiplier uses a new decimal representation for intermediate products, which allows for a very fast two-stage iterative multiplier design. Decimal multipliers, which are synthesized using a 0.11 micron CMOS standard cell library, operate at clock frequencies close to 2 GHz. The latency of the proposed design to multiply two n-digit BCD operands is (n + 8) cycles with a new multiplication able to begin every (n + 1) cycles.
Citation:
Robert D. Kenney, Michael J. Schulte, Mark A. Erle, "A High-Frequency Decimal Multiplier," iccd, pp.26-29, 2004 IEEE International Conference on Computer Design (ICCD'04), 2004