Introduction¶

Sim-nML is an architecture description language (ADL) used in MicroTESK to describe the architecture of a microprocessor under verification. It is a a flexible and easy-to-use language based on attribute grammar. Sim-nML was designed to specify microprocessor architecture for various microprocessor-related software tools including instruction-set simulators, assemblers, disassemblers, compiler back-ends etc. It works at the instruction set level concentrating on behavioral properties and hiding implementation details of the microprocessor. A Sim-nML specification represents a programmer''s model of the microprocessor that covers the following aspects:

• supported data types;
• registers and memory;
• addressing modes;
• syntax and semantics of instructions.