11/9/2022 0 Comments Xilinx ise 14.7 wont install![]() VSIM 2> run 100 usĪs you can see, the debug output of the program is piped to the Modelsim transcript, just like how the debug output is piped to the console when using simrvex. ucbqsort-fast takes about 100 microseconds simulation-time with the default compiler configuration. ![]() Now that we have the signal, we can run the simulation. The timing of the status signal corresponds to the last pipeline stage of the core. ![]() Its output is similar to the trace output from simrvex, except embedded in the waveform view. ![]() This is a simulation-only signal consisting of an array of strings that represent what the ρ-VEX is doing. This platform does not add any signals to the waveform view by default, so let’s add a useful signal now: VSIM 2> add wave sim:/testbench/rvex_inst/rv2sim # source Xilinx ISE 14.7 or Vivado environment script (settings64.sh) Xilinx ISE or Vivado is needed for its unisim and unimacro simulation files. If you don’t mind waiting a little longer, you can of course use ucbqsort as well. We will use the program ucbqsort-fast instead of ucbqsort here to speed up simulation ucbqsort-fast does exactly the same, but has a smaller input size. To do a basic simulation in Modelsim, we will use the cache-test platform. This is a text file with the full instruction trace of the program. Aside from showing the debug output, the trace target also generates a trace file: /platform/simrvex/test-progs/simtrace-ucbqsort. The ucbqsort: success line is produced by the ρ-VEX: specifically by the rvex_succeed("ucbqsort: success\n") line in /test-progs/src/ucbqsort.c. Press enter in the terminal to exit the simulator. $ cd /platform/simrvexĪ framebuffer window will also be opened, which is not used by this program. Only type the lines starting with a $ sign, without actually typing the $, and replace with the directory that contains this file. Open a terminal and run the following commands. We will be using the program ucbqsort from the Powerstone benchmark suite, and run it using simrvex, Modelsim, and (if you have an ML605) ml605-standalone. If everything works as it should, this shouldn’t take more than half an hour. This section is a brief tutorial on how to run a program on the ρ-VEX. Quickstart tutorial: running your first ρ-VEX program It is also available in the doc folder, or it can be downloaded here. For more information on that subject, refer to the MSc thesis corresponding to the ρ-VEX core implementation. That is, they do not document design choices, or in general how things came to be. You can find it in the doc folder of the release, or you can download it here.īoth of these documentation sources are exclusively intended to document the ρ-VEX core they belong to. While this method is good for specific things, it is of course terrible for getting the big picture. This is primarily true for the VHDL files of the core. In order to incentivize keeping documentation up-to-date during research and development, our philosophy is to document as much as possible within the code itself. Some things (for instance grlib and various source files) are not part of the release archive itself, but will be downloaded from the TU Delft FTP automatically when needed.
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