[Libre-soc-bugs] [Bug 1210] sv.bc branching to incorrect address in Vertical-First mode

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Sun Nov 19 02:06:09 GMT 2023


https://bugs.libre-soc.org/show_bug.cgi?id=1210

--- Comment #5 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #4)

> I checked it in a debugger on similar assembly, the pseudocode *is* writing
> to NIA, but then that written value doesn't properly propagate to the fetch
> of the next instruction.

interesting. there's an update function that is supposed to handle that.
wait... that's really obscure because NIA is definitely a variable that
is taken care of

somewhere around here

https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/decoder/isa/caller.py;hb=HEAD#l2833

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