Dear Andy,

Please note that this is a specific request for BASIC. While generally it is impossible to reconstruct the "high level logic" of the original source from the result of compilation, some BASICs don't really compile, rather, they tokenize the source (plus convert symbolic names to addresses, precalculate constant expressions etc.) and attach an interpreter of such "binarized" code. In this case, reconstruction of at least the structure of the source is possible to certain extent.

Jan Waclawek