检索结果-内蒙古大学图书馆

Hardware-assisted Verilog simulation system using an application specific microprocessor

INTEGRATION-THE VLSI JOURNAL 2018年 62卷 76-91页

作者： Tan, Tze Sin Rosdi, Bakhtiar Affendi Altera Plot 6 Johor Baharu 11900 Penang Malaysia USM Sch Elect & Elect Engn Perai 14300 Penang Malaysia

Verilog is a Hardware Description Language (HDL) used for VLSI design and modeling. A software-based Verilog simulator running on general purpose computer is the dominant simulation platform. However, the platform is throughput limited at simulating next generation designs. Commercial hardware-assisted solutions are proprietary with various limitations. A hardware-assisted platform through the use of an application specific simulation processor is proposed in this paper. Program flow of this processor is driven by HDL simulation semantics. The microprocessor is customized to support Verilog operations with computation using the language's native data types (0, 1, X, Z) from behavioral to gate-level abstraction, including delay and signal strength modeling. Besides, fine-grained parallel event dispatch and hardware-augmented netlist traversing are acceleration features built in the microprocessor. A prototype was built on an FPGA to demonstrate system viability. Benchmarking against a software-based compiled-code simulator had shown up to 9 times simulation time improvement despite having limited basic speed improvement techniques implemented. Capacity scalability can be achieved through parallel processing and memory expansion. The system offers speed improvement over software-based simulator, while retaining the same usability. These leave unbounded room of improvements to meet future simulation needs.

关键词： Logic simulator application specific microprocessor Verilog

来源：评论

学校读者我要写书评

暂无评论

Design Techniques for Increasing Performance and Resource Utilization of Reconfigurable Soft CPUs

Design Techniques for Increasing Performance and Resource Ut...

引用

IEEE 15th International Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS)

作者： Wold, Alexander Koch, Dirk Torresen, Jim Univ Oslo Dept Informat N-0316 Oslo Norway

ISBN: (纸本)9781467311854

Reconfigurable hardware allows application specific customization of soft microprocessors. Techniques such as removing unused instructions, software emulation of instructions, custom instruction set extensions, and run-time reconfigurable instructions have been suggested. However, the techniques have largely been studied separately from each other. The contribution of this paper is a classification method enabling integration of these techniques. This allows for generating an application specific microprocessor based system from a given program. The generated microprocessor is optimized with respect to performance per area. The improvement of our methodology is demonstrated for the CoreBench benchmark. The benefit of combining the removal of unused instructions (ISA subsetting) with software emulation of rarely used instructions is shown to increase performance while at the same time reducing resource requirements. Improvement in both area and performance is accomplished thorough simplifying the design allowing an increase in clock frequency for the synthesized soft CPU. Optimizing only by using custom instructions allowed a 12% increase in performance, but also increased resource usage by 6%. Software emulation combined with ISA subsetting allowed area savings of 7%, but only improved performance by 3%. By combining custom instructions, software emulation and ISA subsetting, we achieved an performance improvement of 15% while at the same time reducing resource requirements.

关键词： ISA (Instruction set architecture) subsetting Field Programmable Gate Array (FPGA) Instruction Set Extension (ISE) custom instruction reconfigurable instruction application specific microprocessor

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：