This new function is like MOVP2R, except it masks out the lower 12 bits,
returning them instead of writing them to the register. These lower
12 bits can then be used as an offset for LDR/STR. This lets us turn
ADRP+ADD+LDR sequences with a zero offset into ADRP+LDR sequences with
a non-zero offset, saving one instruction.
When emulated GBAs were added to Dolphin, it was possible to control them
using the GC TAS input window. (Z was mapped to Select.) Unaware of this,
I broke the functionality in b296248.
To make it possible to control emulated GBAs using TAS input again,
I'm adding a proper TAS input window for GBAs, with a real Select button
and no analog controls.
0e02ddcf52 removed separate logic for tiled versus non-tiled EFB peek caches, and as part of that made it so that color peeks updated the frame access mask even when a non-tiled cache is in use. However, the same change was not made for depth peeks. I'm not sure if this affected anything in practice.
In order to avoid getting stuck making a new dimension file every time a new device is found we take a known value for how large the game card will be, take the screen size, and adjust the grid accordingly.
Sometimes a gecko code would have a title long enough to appear over the checkbox. This is now prevented by marking the text's boundary a 16dp before the start of the checkbox.
`ImGui::GetIO` performs an assertion that a context exists, and if one doesn't then things will likely crash. Unfortunately this crash is hard to consistently reproduce.
When inflating this layout, the layout inflater doesn't expect a View and rather a descendant of ViewGroup. This resulted in a crash which is resolved by using a FrameLayout instead.
I recently talked to a homebrew developer who was trying to add exception
handlers at link time but found out that Dolphin was overwriting their
exception handlers. I figure that's not the usual way to do exception
handlers, but... making us load the executable after setting up memory
rather than before is easy, and matches what we do when booting discs,
so I suppose there's no reason not to do it. It also matches the intent
of why Dolphin is writing default exception handlers – we're writing
them because some homebrew relies on exception handlers being left
around from whatever program was running before it (see 3dd777be70).
Let's take advantage of ARM64's input register shifting one last time,
shall we?
Before:
0x1280005b mov w27, #-0x3
0x1b1b7f18 mul w24, w24, w27
After:
0x4b180b18 sub w24, w24, w24, lsl #2
ARM64's flexible shifting of input registers also allows us to calculate
a negative power of two in one instruction; shift the input of a NEG
instruction.
Before:
0x128001f7 mov w23, #-0x10
0x1b1a7efa mul w26, w23, w26
0x93407f58 sxtw x24, w26
After:
0x4b1a13fa neg w26, w26, lsl #4
0x93407f58 sxtw x24, w26
If the destination register doesn't equal the input register, using it
to temporarily hold the immediate value is fair game as it'll be
overwritten with the result of the multiplication anyway. This can
slightly reduce register pressure.
Before:
0x52800659 mov w25, #0x32
0x1b197f5b mul w27, w26, w25
After:
0x5280065b mov w27, #0x32
0x1b1b7f5b mul w27, w26, w27
By taking advantage of ARM64's ability to shift an input register by any
amount, we can calculate multiplication by a number that is one more
than a power of two with a single instruction.
Before:
0x52800838 mov w24, #0x41
0x1b187f7b mul w27, w27, w24
After:
0x0b1b1b7b add w27, w27, w27, lsl #6
Turn multiplications by a power of two into bitshifts.
Before:
0x52800817 mov w23, #0x40
0x1b167ef6 mul w22, w23, w22
After:
0x531a66d6 lsl w22, w22, #6
Multiplication by one is also trivial. Depending on the registers
involved, either a single MOV or no instructions will be generated.
Before:
0x52800038 mov w24, #0x1
0x1b1a7f1b mul w27, w24, w26
After:
0x2a1a03fb mov w27, w26
Before:
0x52800039 mov w25, #0x1
0x1b1a7f3a mul w26, w25, w26
After:
Nothing!
Add a new function that will handle all the special cases regarding
multiplication. It does nothing for now, but will be expanded in
follow-up commits.
We can merge an SXTW with the SUB, eliminating one instruction. In
addition, it is no longer necessary to allocate a temporary register,
reducing register pressure.
Before:
0x93407f59 sxtw x25, w26
0x93407ebb sxtw x27, w21
0xcb1b033b sub x27, x25, x27
After:
0x93407f5b sxtw x27, w26
0xcb35c37b sub x27, x27, w21, sxtw
ARM64 can do perform various types of sign and zero extension on a
register value before using it. The Arm64Emitter already had support for
this, but it was kinda hidden away.
This commit exposes the functionality by making the ExtendSpecifier enum
available everywhere and adding a new ArithOption constructor.
[ VUID-VkDescriptorPoolCreateInfo-maxSets-00301 ] Object 0:
handle = 0x7f1,b8d,3cd,e70, type = VK_OBJECT_TYPE_DEVICE; |
MessageID = 0xa1,70e,236 | vkCreateDescriptorPool():
pCreateInfo->maxSets is not greater than 0.
The Vulkan spec states: maxSets must be greater than 0
BindFramebuffer depends on the pipeline which might not be set yet.
That's why the framebuffer dirty flag exists in the first place.
I assume BindFramebuffer was called directly here, in order to handle
the texture state transitions necessary for DiscardResource.
The state is tracked anyway, so we can just issue those transitions there
too and defer binding the actual framebuffer.
Fixes an issue in Zelda Twilight Princess with EFB depth peeks.
Dolphin would bind a frame buffer which doesn't have an integer format
descriptor for the color target before binding the new pipeline.
So it would accidentally use the 0 descriptor.
Debug layer error:
D3D12 ERROR: ID3D12CommandList::OMSetRenderTargets:
Specified CPU descriptor handle ptr=0x0000000000000000 does not refer to
a location in a descriptor heap. pRenderTargetDescriptors[0] is the issue.
[ EXECUTION ERROR #646: INVALID_DESCRIPTOR_HANDLE]
Fixes the following error in the D3D12 debug layer:
D3D12 WARNING: ID3D12Device::CreateCommittedResource:
Ignoring InitialState D3D12_RESOURCE_STATE_UNORDERED_ACCESS.
Buffers are effectively created in state D3D12_RESOURCE_STATE_COMMON.
[ STATE_CREATION WARNING #1328: CREATERESOURCE_STATE_IGNORED]
Fixes the following error in the D3D12 debug layer:
D3D12 ERROR: ID3D12DescriptorHeap::GetGPUDescriptorHandleForHeapStart:
GetGPUDescriptorHandleForHeapStart is invalid to call on a descriptor
heap that does not have DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE set.
If the heap is not supposed to be shader visible, then
GetCPUDescriptorHandleForHeapStart would be the appropriate method
to call. That call is valid both for shader visible and non shader
visible descriptor heaps.
[ STATE_GETTING ERROR #1315: DESCRIPTOR_HEAP_NOT_SHADER_VISIBLE]
When searching for a disc where the revision doesn't match any disc in
the datfile, the loop would never get to the part where serials_exist is
set to true, leading to a bogus error message.
Because of the previous commit, `regs_in_use` must not include `dest_reg`
when calling MMIOLoadToReg. There are also some other registers we can
skip including in regs_in_use just for efficiency's sake.
The `addr_reg_set = false` statements that I've added in this commit are
technically redundant – if `mmio_address` is non-zero then `addr_reg_set`
is already false – but it's just a coincidence that that's the case.
I originally added these in 2b1d1038a6, for both the TPipelineFunction and the size. The size was moved into the header in fdcd2b7d00 (making the size functions obsolete), but it seems that the functions themselves are no longer needed now.
I think I didn't use this approach before because it would have required ComponentFormatTable and ComponentCountRow to be templated, which would end up resulting in lines that were too long and thus wrapped in awkward places. (I *think* they didn't get inferred properly.) Now that we only need TPipelineFunction, the templating is not needed, and this ends up being a more readable version of the version with the wrapper functions.
Admiral H. Curtiss