Abstract: A digital computer uses a memory which is structured into objects, which are blocks of storage of arbitrary length, in which data items are accessed by descriptors which for a desired data item specify the object, the offset into that object, and the length of the data object. The computer system of the present invention further provides the ability to execute any of a plurality of dialects of internal instructions, the repertoire of such dialects being virtually infinite, since there is the ability to load a supporting microcode during operation as needed.

Abstract: The processor of the present invention executes procedures, which comprise S-language instructions and names. S-languages are of higher order than typical machine languages and can be tailored to user high-order languages. Each procedure includes a dialect code which the processor interprets, enabling it to execute any of a plurality of dialects of S-languages. The processor includes means for resolving names into operand logical addresses. The processor possosses multiple levels of microcode control means, each with its own set of stacks.