A New VLSI Vector Arithmetic Coprocessor for Workstations and the PC - Technical Data and Realization

摘要

A new vector arithmetic coprocessor MIM XPA3233 with integrated PCI bus interface has been developed in CMOS VLSI technology. It can be used on PCs with industry-standard PCI bus. The chip performs dot products of vectors with components of the IEEE DOUBLE data format to full accuracy or with only one final rounding. The products are accumulated into a very long fixed-point register. A special carry resolution technique is used. This paper discusses details of the realisation of the multiplication, accumulation and carry resolution processes. Some information on the actual VLSI hardware design is presented.