Design Example of Useful Memory Latency for Developing a Hazard Preventive Pipeline High-Performance Embedded-Microprocessor

The existence of structural, control, and data hazards presents a major challenge in designing an advanced pipeline/superscalar microprocessor. An efficient memory hierarchy cache-RAM-Disk design greatly enhances the microprocessor's performance. However, there are complex relationships among t...

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Bibliographic Details
Published in:VLSI Design 2013-01, Vol.2013 (2013), p.105-114
Main Author: Cheng, Ching-Hwa
Format: Article
Language:English
Subjects:
Analysis
Central processing units
Computer capacity
Design and construction
Energy efficiency
Energy use
Field programmable gate arrays
Hazardous
Hazards
Hierarchies
Microprocessors
Pipelines
Power consumption
Simulation
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Description
Summary:The existence of structural, control, and data hazards presents a major challenge in designing an advanced pipeline/superscalar microprocessor. An efficient memory hierarchy cache-RAM-Disk design greatly enhances the microprocessor's performance. However, there are complex relationships among the memory hierarchy and the functional units in the microprocessor. Most past architectural design simulations focus on the instruction hazard detection/prevention scheme from the viewpoint of function units. This paper emphasizes that additional inboard memory can be well utilized to handle the hazardous conditions. When the instruction meets hazardous issues, the memory latency can be utilized to prevent performance degradation due to the hazard prevention mechanism. By using the proposed technique, a better architectural design can be rapidly validated by an FPGA at the start of the design stage. In this paper, the simulation results prove that our proposed methodology has a better performance and less power consumption compared to the conventional hazard prevention technique.
ISSN:1065-514X
1563-5171
DOI:10.1155/2013/425105