| commit | dd431e96efe28ecfb57af40a350a3311f827efde | [log] [tgz] |
|---|---|---|
| author | Rupert Swarbrick <rswarbrick@lowrisc.org> | Fri Sep 11 08:32:35 2020 +0100 |
| committer | Rupert Swarbrick <rswarbrick@gmail.com> | Wed Sep 16 12:07:44 2020 +0100 |
| tree | 793eb3a149fa9fca87b132dbe6f0eedb10b815fc | |
| parent | 7c0c1ebcce7ddefdffd18dbedb514dda5ea674f5 [diff] |
[otbn] Run the ISS as a "stepped" subprocess in otbn_model This patch doesn't actually change the behaviour of the code at all, but should allow us to do cleverer things in future. It runs the stepped simulator (instead of otbnsim) but, instead of running it with system(..), it spawns a subprocess and communicates over stdin/stdout. With future patches, we'll be able to actually run the ISS one cycle at a time. Detection of when the ISS finishes isn't particularly pretty (see the regex code in ISSWrapper::saw_busy_cleared), but it should work for now. I'm assuming we'll completely overhaul the tracing format in the reasonably near future anyway. Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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