Method for designing embedded, isomorphic, symmetric and dual-core microprocessor

Abstract

The invention discloses a method for designing an embedded, isomorphic, symmetric and dual-core microprocessor, which forms inner core units by module division according to the relative independency of an instruction fetch unit, a decoding unit, a control unit and a data path internal logistic module, designs a 32-bit dual-core RISC micro structure by using internal modules of a 32-bit RISC micro structure as an IP and expanding functions according to requirements, realizes the synchronization in terms of dual-core instruction fetch and avoids repeated instruction fetch of the two cores or instruction fetch omission by adopting a common PC register proposal, simplifies design by using a policy of sequential emission, namely executing according to the instruction fetch sequences of the two cores, designs a shared register file proposal according to data exchange between the two cores to allow the two cores to share resources, improve data exchange flexibility, avoid realizing data sharing by expanding an instruction set and reduce design period, and adopts a policy of assembly line control combination to realize unified management of two assembly lines and operational coordination of the two assembly lines.

Description

technical field [0001] The invention belongs to the technical field of VLSI design, and in particular relates to a design method for an embedded isomorphic symmetrical dual-core RISC microprocessor applied to a multi-core CPU. Background technique [0002] The leap in microprocessor performance is firstly the result of process improvements and secondly the result of processor core architecture improvements. From the perspective of technology, the current semiconductor technology has experienced the rapid development of silicon transistors, integrated circuits, ultra-large-scale integrated circuits, and very large-scale integrated circuits, which has brought about rapid improvements in the computing performance and application capabilities of microprocessors. From the perspective of architecture, since the advent of the computer in 1946, its architecture has undergone many important changes, the most significant of which is the transition from the Complex Instruction Set Comp...

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Problems solved by technology

[0004] In view of the processor development direction mentioned in the above background technology, on the one hand, only a few companies such as INTEL have launched multi-core processors in the world, and multi-core research is still in its infancy; Related articles published, showing that domestic multi-core research has not really started

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