An introduction to the verification oriented microprogramming language “MIDDLE”

The basic ideas of the microprogramming language MIDDLE are presented. The language gives a possibility to describe various properties of an executing hardware without loosing too much from the flexibility of a higher-level programming language. Three purely synctactic transformations defined in the language allow one to get more or less hardware oriented version of a microprogram. The language has full mathematical semantic description which gives the possibility for the microprogram verification based on the known general program-proof methods.