GNU Cim is a compiler for the programming language Simula (except unspecified parameters to formal or virtual procedures). It offers a class concept, separate compilation with full type checking, interface to external C routines, an application package for process simulation and a coroutine concept. Its portability is based on the C programming language. The compiler and the run-time system is written in C, and the compiler produces C code, that is passed to a C compiler for further processing towards machine code.
