lowrisc-dev November 2016

lowrisc-dev@lists.lowrisc.org

4 participants
2 discussions

What are you working on in this week of November?

by Tobias Strauch

Hi, I would like to use the lowRISC platform as a reference for some of my projects. I hope that I can contribute back to the project one day. In the last weeks I tried to get a good internal understanding of the Rocket core. Because I’m not a guy who loves to read documents, - rather doing it the hard way – I converted a huge section of the Rocket chisel code into SystemVerilog code. I hope I will summarize this experience one day. The next step is to convert the lowRISC\Rocket design into a language I’m working on (PDVL) and to verify it. For that I have two question, and it would be great if someone replies if I’m missing something. Q1: Are there documents available for Rocket and lowRISC other than: Documentation on Rocket: Andrew's Thesis: https://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-1.pdf Some lovely slides at lowRISC (I guess Wei was the artist): http://www.lowrisc.org/docs/tagged-memory-v0.1/rocket-core/ Well, the Chisel code itself. Documentation on Rocket Chip Generator: https://github.com/ucb-bar/rocket-chip which links to http://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-17.pdf Documentation on LowRISC: http://www.lowrisc.org/docs/ Q2: Are there functional verification environments available for Rocket and lowRISC other than: Verification of Rocket: In the Rocket Chip Generator release, there are: run-asm-tests-debug run-bmark-tests-debug Torture(random instruction streams) https://github.com/ucb-bar/riscv-torture Stand alone tests for the hardfloat https://github.com/ucb-bar/berkeley-hardfloat groundtest: Stand alone test for Rocket Chip's memory system https://github.com/ucb-bar/groundtest Verification of LowRISC: Simulation of a test case in the lowRISC release. Thank you for sharing your thoughts on this. So what are you working on in this week of November? Cheers, Tobias

7 years

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What is your opinion about RISCV priv. spec 1.9.1 ?

by Reinoud Zandijk

Dear folks, the title asks the question already: what do you like or dislike of the RISCV priv. spec 1.9.1 as posted. What parts would you do different or what ideas really ought to go but also what parts do you really like in it? Reinoud

7 years

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lowrisc-dev November 2016