A VMM/FPGA co-verification method for “Longtium Stream” processor

The growth of chip complexity increases the workload of verification and new advanced verification methodology is needed to face this challenge. We adopt the verification methodology based Verification Methodology Manual (VMM) to build an automatic coverage-driven verification platform for functional verification of the “Longtium Stream” processor instruction set, which improves the efficiency and functional coverage of verification and enhances the reusability and portability of the verification platform. The stream processor was implemented in a FPGA prototype system for evaluation of the functionality and performance. After analyzing the result obtained by running test program set and the key bottleneck that restrict acceleration performance, we optimized the performance of stream processor by improving the architecture.