These lookup tables total 4 megabytes, and contain data that's entirely redundant to the actual cache state (as part of an optimization, though I'm not sure whether the optimization actually is useful). This change instead recomputes these lookup tables when loading the state (which involves filling the lookup table with a marker (0xff), and then setting the 128 * 8 valid entries (1 kilobyte)).
Before, we used a replace hook and didn't write anything there. Now, we write a BLR instruction to immediately return, and then use a start hook. This makes the behavior a bit clearer (though it shoudln't matter in practice).
Without this, if the user finishes selecting a directory before
directory initialization finishes, MainPresenter.onDirectorySelected
will segfault when trying to read the MAIN_RECURSIVE_ISO_PATHS setting.
An alternative would be to use AfterDirectoryInitializationRunner
after the user selects the directory instead of before, but it might
be confusing for the user to deal with the usage statistics prompt
when they were expecting to add a folder.
All of our BBA options are technically built in, so it made the BBA
Built In option kind of confusing as to what it did. So rename it to
BBA HLE to make it more clear what it is doing and why it doesn't need a
TAP.
Most of these correspond to changes made in devkitPro/libogc@b1b8ecab3a.
The numeric vlaues of ACC0 and ACC1 in Dolphin are different (see b06d38389b, though I'm not sure when this difference first appeared). Technically it's not even necessary to list the registers at the start like this anymore, but old programs do it, so it seems useful to have a test that covers it.
The binary itself does not need to be changed; the warnings were simply stating that "although you wrote $ACL0, the generated binary instead is using $ACC0" or similar; by changing the code to use $ACC0 directly the warnings are resolved.