| commit | 0b60b5d9bbc923a635aa3c65dc9f7852782edac5 | [log] [tgz] |
|---|---|---|
| author | Rupert Swarbrick <rswarbrick@lowrisc.org> | Wed Jan 27 16:16:57 2021 +0000 |
| committer | Rupert Swarbrick <rswarbrick@gmail.com> | Wed Feb 03 08:43:41 2021 +0000 |
| tree | 1519d9d309b51032a29a522eb9d651d0a0c430bf | |
| parent | 7e44ece31d5882bdaedd00a9645d3e50460f3c0f [diff] |
[otbn] Allow multiple errors in a single cycle in ISS This means we can't just raise an exception any more, which makes things a little more fiddly. Instead, any component of the state that might raise an error has an "errs" list, to which it appends an error if it sees one. These lists get concatenated in a tree, in much the same way as we gather up changes. After executing an instruction, the code checks whether there were any errors. If not, it commits pending changes. If there is an error, it figures out the correct value of ERR_BITS and stops. 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.
This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.
The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.
Have a look at CONTRIBUTING for guidelines on how to contribute code to this repository.
Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).