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Pipeline reversible CPU design and simulation system

A simulation system and pipeline technology, applied in the computer field, can solve problems that do not conform to the development trend and characteristics of processors, lack of instruction-level concurrency, etc.

Active Publication Date: 2015-08-26
NANTONG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantages of reversible circuits in terms of power consumption and heat dissipation have been proved in theory and practice. Many scholars have conducted in-depth research on the ALU unit, overall architecture and instruction system of reversible CPUs. Pendulum is the first reversible CPU that can be found. It provides prototypes and templates for the design of reversible CPUs, but Pendulum, including reversible CPUs that appeared later, are all single-cycle CPUs, that is, all actions of each instruction are completed within one clock cycle, and the next one can only be executed after one instruction is executed. Instructions, this lack of instruction-level concurrency is obviously not in line with the development trend and characteristics of modern processors

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  • Pipeline reversible CPU design and simulation system
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  • Pipeline reversible CPU design and simulation system

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Embodiment Construction

[0057] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] In order to achieve the purpose of the present invention, in some embodiments of a pipeline reversible CPU design and simulation system,

[0059] Such as figure 1 As shown, a pipelined reversible CPU of the present invention is based on the Harvard structure, which separates program storage and data storage, and each functional component is synthesized by reversible logic. Reversible logic synthesis rules require that each component has the same number of inputs and outputs, and no fan-in and fan-out. A pipeline reversible CPU includes: arithmetic unit, register group, data memory, instruction memory, control logic, reverse control logic, DIR direction register, PC program counter, PPC previous program counter, BR jump register, Read-Read forwarding Transponders and Write-Read Transponders.

[0060] The arithmetic unit (ALU) is used...

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Abstract

The present invention discloses a pipeline reversible CPU design and simulation system. The pipeline reversible CPU is operated by using a variety of reversible instructions, and the reversible instructions are executed by using a plurality of parallel pipelines. The pipelines comprise a plurality of execution stages. The pipeline reversible CPU has the following advantages: heat dissipation performance is desirable, the program execution speed is fast, the program execution time is short, and the stability and accuracy of data processing is desirable.

Description

technical field [0001] The invention belongs to the field of computers, and in particular relates to a pipeline reversible CPU design and simulation system. Background technique [0002] With the advancement of manufacturing technology, the integration level of integrated circuits is getting higher and higher. The number of transistors contained in a unit area per square millimeter has reached the order of millions. The problem of chip heat dissipation has become an important factor restricting the further development of integrated circuits. Reversible computing is One of the effective ways to solve the chip heat dissipation problem. [0003] Different from traditional computing models, reversible computing not only has forward determinism, but also has reverse determinism. All logical operations contained in it are reversible, so information will not be erased during the computing process. Landauer once pointed out that in addition to the heat dissipation caused by the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/78G06F17/50
Inventor 卫丽华朱鹏程
Owner NANTONG INST OF TECH