[Libre-soc-bugs] [Bug 1173] provide an option to switch ISACaller to use a different Mem class that uses mmap.mmap instead of a dict

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1173

--- Comment #3 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #2)
> I added a new MemMMap class.
> 
> I also added a method that the syscalls should use when they need direct
> access to the memory (method not yet tested, I'll add that next):
> class MemMMap:
>     def get_ctypes(self, start_addr, size, is_write):
>         """ returns a ctypes ubyte array referring to the memory at
>         `start_addr` with size `size`
>         """

awesome, makes sense

> commit 9437aa56d550b9a66772068cf685b06e2d7d263f
> Author: Jacob Lifshay <programmerjake at gmail.com>
> Date:   Fri Sep 22 18:25:21 2023 -0700
> 
>     switch UTF-8 validation tests to use MemMMap so it gets some testing

hmm hmmm about that, really it should be possible to set things
like MSR in order to flip LE/BE, and MSR.SF, on most unit tests.
needs a rethink as part of doing elwidth overrides to be honest
as the tests are the same but results are different. hmm hmmmm

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