Makes the enum strongly typed instead of interacting with a raw u32
value. While we're at it, we can add helpers to the NWC24Config to make
using code poke at the internals of the class a little bit less and also
make the querying a little nicer to read.
Currently we were using heap allocating maps that last for the entire
duration of the emulator running.
Given the size N of both of these maps are very small (< 20 elements),
we can just make use of an array of pairs and perform linear scans. This
is also fine, given this code isn't particularly "hot" either, so this
won't be run often.
This path isn't really any faster in the normal case,
but it does let us skip waiting for the lock to be available,
which makes a huge difference if the lock is already taken.
It seems like we spend a lot of the game list scanning time in
updateAdditionalMetadata, which I suppose makes sense considering
how many different files that function attempts to open.
With the addition of just one little atomic operation, we can make
it safe to call updateAdditionalMetadata without holding a lock.
FindAllGamePaths may take a little while, and holding the
gameFileCache lock isn't actually necessary until it's time to
put the results returned by FindAllGamePaths into gameFileCache.
The downside of this change is that we have to do an extra
round of JNI in between FindAllGamePaths and Update,
but I don't think that's much of a problem.
These functions don't touch any class state, so they can be turned into
internal helper functions.
While we're at it, we can move the enumerations as well.
Although it's not clear what the xA and xB conditions are intended to do, the pattern indicates that xB is the regular version and xA is the inverted version, so for consistency, IsConditionB should be the main function.
Since the merge of b24b79e, we've gotten reports that the
following games are broken on JitArm64:
* Sonic Heroes
* The SpongeBob SquarePants Movie
* Astérix & Obélix XXL
* The Incredibles: Rise of the Underminer
Disabling the register cache avoids the issue, so the cause
of the bug might not actually have anything to do with the
newly implemented instructions. Nevertheless, I don't want
to ship a beta with this problem present, so I would like to
disable these instructions for the time being.
HandleFastmemFault works correctly when faults only happen in
expected locations, but it does some things that are rather
dangerous for faults in unexpected locations, like decrementing
an iterator without checking whether it's equal to begin.
This change cleans up the logic by making m_fault_to_handler's
key be the end of the fastmem region instead of the start.
JosJuice