Micro control hardware and high level languages interpretor
J. Demarteau · 1974
The aim of this paper is to try and describe a new technique for implementing microprograms to form a dynamic interpretor of macro-languages. It demonstrates the connexion between the control address mechanism in micro-instruction and the structure of a dynamic interpretor. The proposed mechanism, which is like the Eastwood fetch/generator instruction (1), is founded on a microprocedure call generator. The control store and control mechanism of the CPU are split into two specific levels : the first one, MIDEF (MIcroprocedure DEFinition) level is for defining short microprocedures, the second, MICALL (MIcroprocedure CALL) level, for linking these micro procedures together, MICALL being the fetch/generator mechanism. Independence between microprocedures at MIDEF level allows to link microprocedure dynamically at MICALL level in order to interpret directly new MACRO instructions.