Processor models for retargetable tools

This paper describes a methodology for developing processor specific tools such as assemblers, disassemblers, processor simulators, compilers etc., using processor models in a generic way. The processor models are written in a language called Sim-nML which is powerful enough to capture the instruction set architecture of a processor We describe a few tools in this paper which can be retargeted to any processor using the high level Sim-nML model of the processor.