Evaluation of soft-core processors on a Xilinx Virtex-5 field programmable gate array. Page: 22 of 37
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
When compiling the code, compiler optimizations were used. The compiler optimizations used
were the following:
" Level 1: First-level optimization. Performs jump and pop optimizations.
" Level 2: Second-level optimization. Activates all optimizations that do not involve a
speed-space trade-off. This is the standard optimization level used for program
" Level 3: Highest optimization level. Adds more expensive options, which increases code
size and can produce less efficient code.
All code compiled used either the v8 compiler switch, which allows the use of multiply/divide
instructions, or the soft-float compiler switch to allow the support of floating point operations.
The soft-float compiler switch is used to disable generation of floating point instructions. When
the FPU is enabled, the soft-float compiler switch was not used.
The Leon3 utilizes the sparc-elf-gcc compiler.
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Learn, Mark Walter. Evaluation of soft-core processors on a Xilinx Virtex-5 field programmable gate array., report, April 1, 2011; United States. (https://digital.library.unt.edu/ark:/67531/metadc836670/m1/22/: accessed May 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.