在NIOS II处理器上定制用于FPGA图像和媒体处理的16位浮点指令

3rd Workshop on Embedded Systems for Real-Time Multimedia, 2005. Pub Date : 2005-09-22 DOI:10.1109/ESTMED.2005.1518073

D. Etiemble, S. Bouaziz, L. Lacassagne

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引用次数: 20

摘要

我们在NIOS II处理器上实现了定制的SIMD 16位浮点指令。在几个图像处理和媒体基准测试中，这种格式的精度和动态范围是足够的，与整数实现相比，可以获得1.5到2以上的加速范围。硬件开销仍然有限，并且与当今fpga的容量兼容。

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Customizing 16-bit floating point instructions on a NIOS II processor for FPGA image and media processing

We have implemented customized SIMD 16-bit floating point instructions on a NIOS II processor. On several image processing and media benchmarks for which the accuracy and dynamic range of this format is sufficient, a speed-up ranging from 1.5 to more than 2 is obtained versus the integer implementation. The hardware overhead remains limited and is compatible with the capacities of today's FPGAs.

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3rd Workshop on Embedded Systems for Real-Time Multimedia, 2005.

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