HiPAR-DSP: a parallel VLIW RISC processor for real time image processing applications

Abstract

Derived from a thorough analysis of a wide class of image processing algorithms' properties, a parallel RISC architecture has been developed. The architecture gains performance from data level parallelism as well as from instruction level parallelism. From the beginning of the concept phase, high-level programming capabilities have been one of the major design goals. Thus, there has been a steady interaction between the design of the software development toolkit-optimizing assembler and C++ compiler-and the architecture itself. The RISC-typical register files are one of the most critical elements as well concerning die size and clock frequency as the assembler's ability in VLIW scheduling. Running at 100 MHz (200 mm/sup 2/, 0.35 /spl mu/m CMOS) the processor reaches a sustained performance of more than 2 GOPS for a wide range of image processing algorithms.