| commit | 9ea7ad4be7abb1343be72f37f0dc837a4573fa5f | [log] [tgz] |
|---|---|---|
| author | Rupert Swarbrick <rswarbrick@lowrisc.org> | Mon Sep 28 17:37:04 2020 +0100 |
| committer | Rupert Swarbrick <rswarbrick@gmail.com> | Fri Oct 02 12:05:49 2020 +0100 |
| tree | f11d7f77447d18a331b2195179120c896dec6025 | |
| parent | 2f872b9c9b4917fc685038bb1ada053c797eeeb9 [diff] |
[otbn] Fix BN.LID / BN.SID in ISS Now, BN.LID / BN.SID load and store 256-bit little-endian values (so byte 0 is the LSB; byte 31 is the MSB). As before (and as expected by the RISC-V base ISA), the LW / SW instructions load and store 32-bit little-endian values. Before this change, the code was a mess of reversed() calls. After lots of debug prints, I think it's finally both consistent and right! This patch also updates the post-increment behaviour as discussed in issue #3587 and expands the documentation a bit. 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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