LOGAT

A behaviour of atomic arithmetic operations (+,-, *, /) in a S-function cannot be changed in the Simulink. It disallows to model the behaviour of a complex algorithm on a special arithmetic hardware. One of possible ways to solve the problem is to use a S-function parser which converts arithmetic operators to functions. The parser is a part of a simulator of a Logarithmic Arithmetic Unit. Paper describes the development of the parser performed under the EU ESPRIT 33544 HSLA Long-term research project, coordinated by the University of Newcastle, UK.