[Libre-soc-isa] [Bug 1161] EXTRA2/3 algorithm likely inconsistent with EXTRA2 tables causing PowerDecoder2 and insndb to disagree on scalar EXTRA2 register encoding for >=r32

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1161

--- Comment #14 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Jacob Lifshay from comment #13)

since I'm waiting for luke to reply, I went ahead and created
a `fix-scalar-extra2` branch for the corresponding openpower-isa changes:

https://git.libre-soc.org/?p=openpower-isa.git;a=shortlog;h=refs/heads/fix-scalar-extra2

https://git.libre-soc.org/?p=openpower-isa.git;a=shortlog;h=a723e3c7726241dc2b505b66a43932b841696dbc

commit a723e3c7726241dc2b505b66a43932b841696dbc
Author: Jacob Lifshay <programmerjake at gmail.com>
Date:   Tue Sep 19 18:36:32 2023 -0700

    implement the algorithm from the wiki basically verbatim

commit 792d0f42f8d95a122cb334365e1bf347d92aeafa
Author: Jacob Lifshay <programmerjake at gmail.com>
Date:   Tue Sep 19 18:35:22 2023 -0700

    format code

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