Compared to the former, the latter invalidates the icache, which is
something that is likely desired for patches (especially if they are
applied while the game is running).
Invalidate icache only if target address has a different value. Take separate arguements,
instead of a struct, to allow easier usage elsewhere. Overload with u8,
u16 and u32 values for the same reason.
When 9d9b6d8 changed our target SDK version to Android 16, it made
Android 16 stop calling onBackPressed and stop delivering KEYCODE_BACK
events. Dolphin's code isn't ready for that yet.
Android lets us opt out of this new behavior for now, so let's do so.
But the opt-out will presumably stop working once we start targeting
Android 17, so we're going to have to update Dolphin's code within the
next one or two years to support the replacement API.
Number of instructions stays the same, but we remove the false
dependency on the input registers.
Before:
0x7a1b037a sbcs w26, w27, w27
After:
0x5a9f23fa csetm w26, lo
Another instance where we needlessly materialized constant zero in a
register. We can just write the carry flag directly.
Before:
0x5280001a mov w26, #0x0 ; =0
0x1a1f035a adc w26, w26, wzr
After:
0x1a9f37fa cset w26, hs
Dual Core is primarily known as one of the first troubleshooting steps when emulation or NetPlay misbehave.
I believe(?) the original intent with having it on by default was likely to support users with weaker machines. However, I believe it would be a lot more reasonable for users to manually enable dual core if they really need the performance boost, rather than it is for them to have come ask us in support channel why their cleanly-installed Dolphin is not emulating their games properly.
Instead, this creates a fragile first impression where a clean install of Dolphin is already set up in a way that leads to inexplicable crashes, subtle timing bugs, and NetPlay desyncs.
Note: This changes only applies to the Desktop application, since mobile devices *do* really need the performance boost.
For thread safety, we shouldn't return any pointers or references that
can be used to mutate the state of the PPCSymbolDB. This should be the
final part of making PPCSymbolDB thread safe unless I've missed
something.
9395238 added locking in some PPCSymbolDB functions that access member
variables, but far from all. To ensure thread safety, this commit adds
the missing locking.
9395238 added a mutex to PPCSymbolDB, and made functions return with an
"empty" result if called while the mutex is locked. This new behavior
has the potential to affect not only less important call sites like the
symbol printing mentioned in a comment, but also the JIT deciding if it
should HLE a function.
A later commit in this pull request decreases the amount of lock
contention, reducing the performance impact of this commit.
When Android sends Dolphin to the background, emulation *must* pause,
otherwise emulation continues running and continues outputting audio to
the user. RetroAchievements mustn't be allowed to override it.
The SetDisc function calls AchievementManager::LoadGame with the game's
volume. Calling AchievementManager::LoadGame again afterwards with
nullptr prevents RetroAchievements from working.
Use ToolTipWidget::SetDescription insead of QWidget::setTooltip to put
the description in the BalloonTip with the title, instead of having the
description be in a separate standard tooltip.
It is useful enough for the Code widget to be enabled the first time
debugging is enabled, but it should not be re-enabled every time the
setting is toggled off and then back on. This also ensures that the
interface is consistent if debugging is enabled without using the
checkbox.
Dolphin never emulated the AHBPROT register before, but the default
value when reading from unimplemented MMIO registers used to be -1,
which happened to match what AHBPROT reads as when all restrictions are
disabled. In 6f25e20c6a I changed the
default to 0 to match observed hardware behavior in the memory range of
the command processor. This broke libogc's DI_Init() which checks
AHBPROT for full hardware access (presumably to ensure that bypassing
IPC for Video DVDs will work).
Fix a copy-paste error causing MemoryWidget's splitter to load the wrong
state data when creating the MemoryWidget.
For me this caused the side panel to be scrunched up every time I
started Dolphin, but the exact effects probably depend on the state of
your MemoryWidget and CodeWidget.
Fix two bugs that occurred when viewing a memory range starting shortly
before 0xffffffff.
Bug 1: When there was at least one visible memory address at or after
0x0 none of the values would be displayed even when some of the
addresses were valid. This happened because the loop condition in
GetValues immediately returned false since m_address_range.first >
m_address_range.second, causing m_values to be empty. This in turn led
every address to be considered INVALID_MEMORY in UpdateColumns.
Bug 2: When m_address_range.second was equal to 0xffffffff GetValues
would enter an infinite loop. This happened because address would
overflow to 0 after printing the last value in the table, causing the
loop condition address <= m_address_range.second to be true forever.
Require ReadArray and WriteArray to be called with a trivially copyable
type.
ReadArray and WriteArray call std::fread and std::fwrite respectively.
These functions trigger undefined behavior when the objects are not
trivially copyable, so this adds that requirement to the callers.
Fix creation of a ".sav" file in the current working directory on
emulation shutdown when a slot is set to "Advance Game Port" and the
"GBA Cartridge Path" is empty.
Fixes https://bugs.dolphin-emu.org/issues/12975.
Fix some common anti-patterns with these data structures.
- You can dereference the iterator returned by `find` to access the
underlying value directly, without an extra `operator[]`/`at`.
- Rather than checking for an element before insertion/deletion, you can
just do the operation and if needed check the return value to
determine if the insertion/deletion succeeded.
Unlike custom banners which work as an override, this mechanism works as
a fallback. The use case is if you have games you don't really play but
want to keep around for testing purposes without filling up your NAND
with lots of saves. For ease of use, the directory structure is the same
but only title/$title_hi/$title_lo/data/banner.bin files are
relevant.
Fix the input string failing to validate when the "Hex Byte
String" input type is selected and either the user adds a 0x prefix or
the "Hex" box is checked (or both).
The latter failure was particularly troublesome because when "Hex Byte
String" is selected the "Hex" checkbox is disabled. Users would have to
switch to a data type that enabled the box, toggle it, then switch back
to "Hex Byte String" to fix it.
Fix these errors by not adding a prefix when the "Hex" box is checked,
and removing the "0x" prefix from the user's input if present.
