* ARMeilleure: Respect Fz flag for all floating point operations.
This is a change in strategy for emulating the Fz FPCR flag. Before, it was set before instructions that "needed it" and reset after. However, this missed a few hot instructions like the multiplication instruction, and the entirety of A32.
The new strategy is to set the Fz flag only in the following circumstances:
- Set to match FPCR before translated functions/loop are executed.
- Reset when calling SoftFloat methods, set when returning.
- Reset when exiting execution.
This allows us to remove the code around the existing Fz aware instructions, and get the accuracy benefits on all floating point instructions executed while in translated code.
Single step executions now need to be called with a context wrapper - right now it just contains the Fz flag initialization, and won't actually do anything on ARM.
This fixes a bug in Breath of the Wild where some physics interactions could randomly crash the game due to subnormal values not flushing to zero.
This is draft right now because I need to answer the questions:
- Does dotnet avoid changing the value of Mxcsr?
- Is it a good idea to assume that? Or should the flag set/restore be done on every managed method call, not just softfloat?
- If we assume that, do we want a unit test to verify the behaviour?
I recommend testing a bunch of games, especially games affected when this was originally added, such as #1611.
* Remove unused method
* Use FMA for Fmadd, Fmsub, Fnmadd, Fnmsub, Fmla, Fmls
...when available.
Similar implementation to A32
* Use FMA for Frecps, Frsqrts
* Don't set DAZ.
* Add round mode to ARM FP mode
* Fix mistakes
* Add test for FP state when calling managed methods
* Add explanatory comment to test.
* Cleanup
* Add A64 FPCR flags
* Vrintx_S A32 fast path on A64 backend
* Address feedback 1, re-enable DAZ
* Fix FMA instructions By Elem
* Address feedback
* ARMeilleure: Add AVX512{F,VL,DQ,BW} detection
Add `UseAvx512Ortho` and `UseAvx512OrthoFloat` optimization flags as
short-hands for `F+VL` and `F+VL+DQ`.
* ARMeilleure: Add initial support for EVEX instruction encoding
Does not implement rounding, or exception controls.
* ARMeilleure: Add `X86Vpternlogd`
Accelerates the vector-`Not` instruction.
* ARMeilleure: Add check for `OSXSAVE` for AVX{2,512}
* ARMeilleure: Add check for `XCR0` flags
Add XCR0 register checks for AVX and AVX512F, following the guidelines
from section 14.3 and 15.2 from the Intel Architecture Software
Developer's Manual.
* ARMeilleure: Remove redundant `ReProtect` and `Dispose`, formatting
* ARMeilleure: Move XCR0 procedure to GetXcr0Eax
* ARMeilleure: Add `XCR0` to `FeatureInfo` structure
* ARMeilleure: Utilize `ReadOnlySpan` for Xcr0 assembly
Avoids an additional allocation
* ARMeilleure: Formatting fixes
* ARMeilleure: Fix EVEX encoding src2 register index
> Just like in VEX prefix, vvvv is provided in inverted form.
* ARMeilleure: Add `X86Vpternlogd` acceleration to `Vmvn_I`
Passes unit tests, verified instruction utilization
* ARMeilleure: Fix EVEX register operand designations
Operand 2 was being sourced improperly.
EVEX encoded instructions source their operands like so:
Operand 1: ModRM:reg
Operand 2: EVEX.vvvvv
Operand 3: ModRM:r/m
Operand 4: Imm
This fixes the improper register designations when emitting vpternlog.
Now "dest", "src1", "src2" arguments emit in the proper order in EVEX instructions.
* ARMeilleure: Add `X86Vpternlogd` acceleration to `Orn_V`
* ARMeilleure: PTC version bump
* ARMeilleure: Update EVEX encoding Debug.Assert to Debug.Fail
* ARMeilleure: Update EVEX encoding comment capitalization
* Implement JIT Arm64 backend
* PPTC version bump
* Address some feedback from Arm64 JIT PR
* Address even more PR feedback
* Remove unused IsPageAligned function
* Sync Qc flag before calls
* Fix comment and remove unused enum
* Address riperiperi PR feedback
* Delete Breakpoint IR instruction that was only implemented for Arm64
* ARMeilleure: Add AVX512{F,VL,DQ,BW} detection
Add `UseAvx512Ortho` and `UseAvx512OrthoFloat` optimization flags as
short-hands for `F+VL` and `F+VL+DQ`.
* ARMeilleure: Add initial support for EVEX instruction encoding
Does not implement rounding, or exception controls.
* ARMeilleure: Add `X86Vpternlogd`
Accelerates the vector-`Not` instruction.
* ARMeilleure: Add check for `OSXSAVE` for AVX{2,512}
* ARMeilleure: Add check for `XCR0` flags
Add XCR0 register checks for AVX and AVX512F, following the guidelines
from section 14.3 and 15.2 from the Intel Architecture Software
Developer's Manual.
* ARMeilleure: Increment InternalVersion
* ARMeilleure: Remove redundant `ReProtect` and `Dispose`, formatting
* ARMeilleure: Move XCR0 procedure to GetXcr0Eax
* ARMeilleure: Add `XCR0` to `FeatureInfo` structure
* ARMeilleure: Utilize `ReadOnlySpan` for Xcr0 assembly
Avoids an additional allocation
* ARMeilleure: Formatting fixes
* Do not clear the rejit queue when overlaps count is equal to 0.
* Ptc and PtcProfiler must be invalidated.
* Revert "Ptc and PtcProfiler must be invalidated."
This reverts commit f5b0ad9d7dc3c0b3a0da184de4d04d7234939c81.
* Fix#3710 slow path due to #3701.
* A64: Add fast path for Fcvtas_Gp/S/V, Fcvtau_Gp/S/V and Frinta_S/V instructions;
they use "Round to Nearest with Ties to Away" rounding mode not supported in x86.
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
The titles Mario Strikers and Super Smash Bros. U. use these instructions intensively.
* Update Ptc.cs
* A32: Add fast path for Vcvta_RM, Vrinta_RM and Vrinta_V instructions aswell.
* ARMeilleure: Add `GFNI` detection
This is intended for utilizing the `gf2p8affineqb` instruction
* ARMeilleure: Add `gf2p8affineqb`
Not using the VEX or EVEX-form of this instruction is intentional. There
are `GFNI`-chips that do not support AVX(so no VEX encoding) such as
Tremont(Lakefield) chips as well as Jasper Lake.
13df339fe7/GenuineIntel/GenuineIntel00806A1_Lakefield_LC_InstLatX64.txt (L1297-L1299)13df339fe7/GenuineIntel/GenuineIntel00906C0_JasperLake_InstLatX64.txt (L1252-L1254)
* ARMeilleure: Add `gfni` acceleration of `Rbit_V`
Passes all `Rbit_V*` unit tests on my `i9-11900k`
* ARMeilleure: Add `gfni` acceleration of `S{l,r}i_V`
Also added a fast-path for when the shift amount is greater than the
size of the element.
* ARMeilleure: Add `gfni` acceleration of `Shl_V` and `Sshr_V`
* ARMeilleure: Increment InternalVersion
* ARMeilleure: Fix Intrinsic and Assembler Table alignment
`gf2p8affineqb` is the longest instruction name I know of. It shouldn't
get any wider than this.
* ARMeilleure: Remove SSE2+SHA requirement for GFNI
* ARMeilleure Add `X86GetGf2p8LogicalShiftLeft`
Used to generate GF(2^8) 8x8 bit-matrices for bit-shifting for the `gf2p8affineqb` instruction.
* ARMeilleure: Append `FeatureInfo7Ecx` to `FeatureInfo`
* Implemented in IR the managed methods of the Saturating region ...
... of the SoftFallback class (the SatQ ones).
The need to natively manage the Fpcr and Fpsr system registers is still a fact.
Contributes to https://github.com/Ryujinx/Ryujinx/issues/2917 ; I will open another PR to implement in Intrinsics-branchless the methods of the Saturation region as well (the SatXXXToXXX ones).
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
* Ptc.InternalVersion = 3665
* Addressed PR feedback.
* Implemented in IR the managed methods of the ShlReg region of the SoftFallback class.
It also includes the last two SatQ ones (following up on https://github.com/Ryujinx/Ryujinx/pull/3665).
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
* Fpsr and Fpcr freed.
Handling/isolation of Fpsr and Fpcr via register for IR and via memory for Tests and Threads, with synchronization to context exchanges (explicit for SoftFloat); without having to call managed methods. Thanks to the inlining work of the previous two PRs and others in this.
Tests performed locally in both release and debug modes, in both lowcq and highcq, with FastFP to true and false (explicit FP tests included). Tested with the title Tony Hawk's PS.
Depends on shlreg.
* Update InstEmitSimdHelper.cs
* De-magic Masks.
Remove the Stride and Len flags; Fpsr.NZCV are A32 only, then moved to Fpscr: this leads to emitting less IR in reference to Get/Set Fpsr/Fpcr/Fpscr methods in reference to Mrs/Msr (A64) and Vmrs/Vmsr (A32) instructions.
* Addressed PR feedback.
* Implemented in IR the managed methods of the Saturating region ...
... of the SoftFallback class (the SatQ ones).
The need to natively manage the Fpcr and Fpsr system registers is still a fact.
Contributes to https://github.com/Ryujinx/Ryujinx/issues/2917 ; I will open another PR to implement in Intrinsics-branchless the methods of the Saturation region as well (the SatXXXToXXX ones).
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
* Ptc.InternalVersion = 3665
* Addressed PR feedback.
* Implemented in IR the managed methods of the ShlReg region of the SoftFallback class.
It also includes the last two SatQ ones (following up on https://github.com/Ryujinx/Ryujinx/pull/3665).
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
* Update InstEmitSimdHelper.cs
* OpCodeTable: Implement Hint instructions (CSDB, SEV, SEVL, WFE, WFI, YIELD)
* A64: Remove catch-all Hint instruction
* T16: Handle unallocated hint instructions
Some thumb tests execute these assuming that they're nops.
* T32: Fill out other Hint instructions
* A32: Fill out other hint instructions
* Implement Thumb (32-bit) memory (ordered), multiply and bitfield instructions
* Remove public from interface
* Fix T32 BL immediate and implement signed and unsigned extend instructions
* Implement VRSRA, VRSHRN, VQSHRUN, VQMOVN, VQMOVUN, VQADD, VQSUB, VRHADD, VPADDL, VSUBL, VQDMULH and VMLAL Arm32 NEON instructions
* PPTC version
* Fix VQADD/VQSUB
* Improve MRC/MCR handling and exception messages
In case data is being recompiled as code, we don't want to throw at emit stage, instead we should only throw if it actually tries to execute
* Implemented in IR the managed methods of the Saturating region ...
... of the SoftFallback class (the SatQ ones).
The need to natively manage the Fpcr and Fpsr system registers is still a fact.
Contributes to https://github.com/Ryujinx/Ryujinx/issues/2917 ; I will open another PR to implement in Intrinsics-branchless the methods of the Saturation region as well (the SatXXXToXXX ones).
All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.
* Ptc.InternalVersion = 3665
* Addressed PR feedback.
* Refactor CPU interface
* Use IExecutionContext interface on SVC handler, change how CPU interrupts invokes the handlers
* Make CpuEngine take a ITickSource rather than returning one
The previous implementation had the scenario where the CPU engine had to implement the tick source in mind, like for example, when we have a hypervisor and the game can read CNTPCT on the host directly. However given that we need to do conversion due to different frequencies anyway, it's not worth it. It's better to just let the user pass the tick source and redirect any reads to CNTPCT to the user tick source
* XML docs for the public interfaces
* PPTC invalidation due to NativeInterface function name changes
* Fix build of the CPU tests
* PR feedback
