HOSMII: A Virtual Hardware Integrated with DRAM

WASMII, a virtual hardware system that executes data ow algorithms, is based on an MPLD, an extended FPGA with multiple sets of con guration SRAM. Although we have developed an emulation system and software environment for WASMII, it has tended to be unrealistic due to the di culty of the MPLD implementation. However, with recent technologies of semiconductors, an FPGA and DRAM can be implemented into a single LSI chip. We propose novel virtual hardware called HOSMII using such an FPGA/DRAM chip which can hold hundreds of con guration data and switch them instantaneously.