* shader cache: Fix Linux boot issues
This rollback the init logic back to previous state, and replicate the
way PTC handle initialization.
* shader cache: set default state of ready for translation event to false
* Fix cpu unit tests
* infra: Migrate to .NET 5
This migrate projects and CI to .NET 5
* Remove language version restrictions (now on 9.0 by default)
* infra: pin .NET 5 to avoid later issues
* infra: Cleanup csproj files
* infra: update dependencies
* infra: Add temporary workaround for a bug in Vector128.Create
see https://github.com/dotnet/runtime/issues/44704 for more informations
This project wasn't really used by anyone and isn't worth mantaining.
This commit remove the profiler entirely from Ryujinx and remove the associated CI tasks.
* Amadeus: Final Act
This is my requiem, I present to you Amadeus, a complete reimplementation of the Audio Renderer!
This reimplementation is based on my reversing of every version of the audio system module that I carried for the past 10 months.
This supports every revision (at the time of writing REV1 to REV8 included) and all features proposed by the Audio Renderer on real hardware.
Because this component could be used outside an emulation context, and to avoid possible "inspirations" not crediting the project, I decided to license the Ryujinx.Audio.Renderer project under LGPLv3.
- FE3H voices in videos and chapter intro are not present.
- Games that use two audio renderer **at the same time** are probably going to have issues right now **until we rewrite the audio output interface** (Crash Team Racing is the only known game to use two renderer at the same time).
- Persona 5 Scrambler now goes ingame but audio is garbage. This is caused by the fact that the game engine is syncing audio and video in a really aggressive way. This will disappears the day this game run at full speed.
* Make timing more precise when sleeping on Windows
Improve precision to a 1ms resolution on Windows NT based OS.
This is used to avoid having totally erratic timings and unify all
Windows users to the same resolution.
NOTE: This is only active when emulation is running.
* Add Fmax/minv_V & S/Ushl_S Inst.s with Tests. Fix Maxps/d & Minps/d double zero sign handling. Allows better handling of NaNs.
* Optimized EmitSse2VectorIsNaNOpF() for multiple uses per opF.
* Add CRC32 A32 instructions.
* Fix CRC32 instructions.
* Add CRC intrinsic and fast path.
Loop is currently unrolled, will look into adding temp vars after tests are added.
* Begin work on Crc tests
* Fix SSE4.2 path for CRC32C, finialize tests.
* Remove unused IR path.
* Fix spacing between prefix checks.
* This should be Src.
* PTC Version
* OpCodeTable Order
* Integer check improvement. Value and Crc can be either 32 or 64 size.
* This wasn't necessary...
* If size is 3, value type must be I64.
* Fix same src+dest handling for non crc intrinsics.
* Pre-fix (ha) issue with vex encodings
* Add Vmvn (register), tests for both Vmvn variants.
* Add Vpmin, Vpmax, improve Non-FastFp accuracy for Vpadd
* Rebase on top of PTC.
* Add Nopcode
* Increment PTC version.
* Fix nits.
* Delete DelegateTypes.cs
* Delete DelegateCache.cs
* Add files via upload
* Update Horizon.cs
* Update Program.cs
* Update MainWindow.cs
* Update Aot.cs
* Update RelocEntry.cs
* Update Translator.cs
* Update MemoryManager.cs
* Update InstEmitMemoryHelper.cs
* Update Delegates.cs
* Nit.
* Nit.
* Nit.
* 10 fewer MSIL bytes for us
* Add comment. Nits.
* Update Translator.cs
* Update Aot.cs
* Nits.
* Opt..
* Opt..
* Opt..
* Opt..
* Allow to change compression level.
* Update MemoryManager.cs
* Update Translator.cs
* Manage corner cases during the save phase. Nits.
* Update Aot.cs
* Translator response tweak for Aot disabled. Nit.
* Nit.
* Nits.
* Create DelegateHelpers.cs
* Update Delegates.cs
* Nit.
* Nit.
* Nits.
* Fix due to #784.
* Fixes due to #757 & #841.
* Fix due to #846.
* Fix due to #847.
* Use MethodInfo for managed method calls.
Use IR methods instead of managed methods about Max/Min (S/U).
Follow-ups & Nits.
* Add missing exception messages.
Reintroduce slow path for Fmov_Vi.
Implement slow path for Fmov_Si.
* Switch to the new folder structure.
Nits.
* Impl. index-based relocation information. Impl. cache file version field.
* Nit.
* Address gdkchan comments.
Mainly:
- fixed cache file corruption issue on exit; - exposed a way to disable AOT on the GUI.
* Address AcK77 comment.
* Address Thealexbarney, jduncanator & emmauss comments.
Header magic, CpuId (FI) & Aot -> Ptc.
* Adaptation to the new application reloading system.
Improvements to the call system of managed methods.
Follow-ups.
Nits.
* Get the same boot times as on master when PTC is disabled.
* Profiled Aot.
* A32 support (#897).
* #975 support (1 of 2).
* #975 support (2 of 2).
* Rebase fix & nits.
* Some fixes and nits (still one bug left).
* One fix & nits.
* Tests fix (by gdk) & nits.
* Support translations not only in high quality and rejit.
Nits.
* Added possibility to skip translations and continue execution, using `ESC` key.
* Update SettingsWindow.cs
* Update GLRenderer.cs
* Update Ptc.cs
* Disabled Profiled PTC by default as requested in the past by gdk.
* Fix rejit bug. Increased number of parallel translations. Add stack unwinding stuffs support (1 of 2).
Nits.
* Add stack unwinding stuffs support (2 of 2). Tuned number of parallel translations.
* Restored the ability to assemble jumps with 8-bit offset when Profiled PTC is disabled or during profiling.
Modifications due to rebase.
Nits.
* Limited profiling of the functions to be translated to the addresses belonging to the range of static objects only.
* Nits.
* Nits.
* Update Delegates.cs
* Nit.
* Update InstEmitSimdArithmetic.cs
* Address riperiperi comments.
* Fixed the issue of unjustifiably longer boot times at the second boot than at the first boot, measured at the same time or reference point and with the same number of translated functions.
* Implemented a simple redundant load/save mechanism.
Halved the value of Decoder.MaxInstsPerFunction more appropriate for the current performance of the Translator.
Replaced by Logger.PrintError to Logger.PrintDebug in TexturePool.cs about the supposed invalid texture format to avoid the spawn of the log.
Nits.
* Nit.
Improved Logger.PrintError in TexturePool.cs to avoid log spawn.
Added missing code for FZ handling (in output) for fp max/min instructions (slow paths).
* Add configuration migration for PTC
Co-authored-by: Thog <me@thog.eu>
Some parts of our code needs C# 8 who isn't set as default in Visual Studio. To fix this we have to set the C# version correctly in the csproj files and then we are be able to build the project using Visual Studio.
* Implement a new physical memory manager and replace DeviceMemory
* Proper generic constraints
* Fix debug build
* Add memory tests
* New CPU memory manager and general code cleanup
* Remove host memory management from CPU project, use Ryujinx.Memory instead
* Fix tests
* Document exceptions on MemoryBlock
* Fix leak on unix memory allocation
* Proper disposal of some objects on tests
* Fix JitCache not being set as initialized
* GetRef without checks for 8-bits and 16-bits CAS
* Add MemoryBlock destructor
* Throw in separate method to improve codegen
* Address PR feedback
* QueryModified improvements
* Fix memory write tracking not marking all pages as modified in some cases
* Simplify MarkRegionAsModified
* Remove XML doc for ghost param
* Add back optimization to avoid useless buffer updates
* Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper
* Some nits
* Do not perform address translation when size is 0
* Address PR feedback and format NativeInterface class
* Remove ghost parameter description
* Update Ryujinx.Cpu to .NET Core 3.1
* Address PR feedback
* Fix build
* Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified
* Typo
* Updated all NuGet packages to latest, and updated the framework from .NET Core 3.0 to 3.1.
* Updating appveyor settings for 3.1
Updating appveyor to use the netcoreapp3.1 path instead of 3.0.
* Removing unneeded NuGet package System.Runtime.CompilerServices.Unsafe.
* Removing unused NuGet package SharpFontCore.
* Removing unused NuGet package TimeZoneConverter.Posix
* Cleaning up by adding newline to a csproj.
* Simplfying a NuGet conditional include, and adding a warning disable for an annoying NuGet package.
* I'm not sure if .travis.yml is still used, but I'm updating its 'dotnet' version to the correct SDK.
* Making the runtime version into its own environment variable so it's a bit easier to change in the future.
* Removing OpenTK.NetStandard reference from Ryujinx.Common
* Fixing indentation in Common.csproj
* Updating the README to specify .NET Core 3.1.
* Reverting the update of the GTKSharp package so it doesn't block the PR.
* Implement VMOVL and VORR.I32 AArch32 SIMD instructions
* Rename <dt> to <size> on test description
* Rename Widen to Long and improve VMOVL implementation a bit
* Implement SMULWB, SMULWT, SMLAWB, SMLAWT, and add tests for some multiply instructions
* Improve test descriptions
* Rename SMULH to SMUL__
* Add SSAT, SSAT16, USAT and USAT16 ARM32 instructions
* Fix new tests
* Replace AND 0xFFFF with 16-bits zero extension (more efficient)
* Implement TEQ and MOV (Imm16)
* Initial work on A32 instructions + SVC. No tests yet, hangs in rtld.
* Implement CLZ, fix BFI and BFC
Now stops on SIMD initialization.
* Exclusive access instructions, fix to mul, system instructions.
Now gets to a break after SignalProcessWideKey64.
* Better impl of UBFX, add UDIV and SDIV
Now boots way further - now stuck on VMOV instruction.
* Many more instructions, start on SIMD and testing framework.
* Fix build issues
* svc: Rework 32 bit codepath
Fixing once and for all argument ordering issues.
* Fix 32 bits stacktrace
* hle debug: Add 32 bits dynamic section parsing
* Fix highCq mode, add many tests, fix some instruction bugs
Still suffers from critical malloc failure 😩
* Fix incorrect opcode decoders and a few more instructions.
* Add a few instructions and fix others. re-disable highCq for now.
Disabled the svc memory clear since i'm not sure about it.
* Fix build
* Fix typo in ordered/exclusive stores.
* Implement some more instructions, fix others.
Uxtab16/Sxtab16 are untested.
* Begin impl of pairwise, some other instructions.
* Add a few more instructions, a quick hack to fix svcs for now.
* Add tests and fix issues with VTRN, VZIP, VUZP
* Add a few more instructions, fix Vmul_1 encoding.
* Fix way too many instruction bugs, add tests for some of the more important ones.
* Fix HighCq, enable FastFP paths for some floating point instructions
(not entirely sure why these were disabled, so important to note this
commit exists)
Branching has been removed in A32 shifts until I figure out if it's
worth it
* Cleanup Part 1
There should be no functional change between these next few commits.
Should is the key word. (except for removing break handler)
* Implement 32 bits syscalls
Co-authored-by: riperiperi <rhy3756547@hotmail.com>
Implement all 32 bits counterparts of the 64 bits syscalls we currently
have.
* Refactor part 2: Move index/subindex logic to Operand
May have inadvertently fixed one (1) bug
* Add FlushProcessDataCache32
* Address jd's comments
* Remove 16 bit encodings from OpCodeTable
Still need to catch some edge cases (operands that use the "F" flag) and
make Q encodings with non-even indexes undefined.
* Correct Fpscr handling for FP vector slow paths
WIP
* Add StandardFPSCRValue behaviour for all Arithmetic instructions
* Add StandardFPSCRValue behaviour to compare instructions.
* Force passing of fpcr to FPProcessException and FPUnpack.
Reduces potential for code error significantly
* OpCode cleanup
* Remove urgency from DMB comment in MRRC
DMB is currently a no-op via the instruction, so it should likely still
be a no-op here.
* Test Cleanup
* Fix FPDefaultNaN on Ryzen CPUs
* Improve some tests, fix some shift instructions, add slow path for Vadd
* Fix Typo
* More test cleanup
* Flip order of Fx and index, to indicate that the operand's is the "base"
* Remove Simd32 register type, use Int32 and Int64 for scalars like A64 does.
* Reintroduce alignment to DecoderHelper (removed by accident)
* One more realign as reading diffs is hard
* Use I32 registers in A32 (part 2)
Swap default integer register type based on current execution mode.
* FPSCR flags as Registers (part 1)
Still need to change NativeContext and ExecutionContext to allow
getting/setting with the flag values.
* Use I32 registers in A32 (part 1)
* FPSCR flags as registers (part 2)
Only CMP flags are on the registers right now. It could be useful to use
more of the space in non-fast-float when implementing A32 flags
accurately in the fast path.
* Address Feedback
* Correct FP->Int behaviour (should saturate)
* Make branches made by writing to PC eligible for Rejit
Greatly improves performance in most games.
* Remove unused branching for Vtbl
* RejitRequest as a class rather than a tuple
Makes a lot more sense than storing tuples on a dictionary.
* Add VMOVN, VSHR (imm), VSHRN (imm) and related tests
* Re-order InstEmitSystem32
Alphabetical sorting.
* Address Feedback
Feedback from Ac_K, remove and sort usings.
* Address Feedback 2
* Address Feedback from LDj3SNuD
Opcode table reordered to have alphabetical sorting within groups,
Vmaxnm and Vminnm have split names to be less ambiguous, SoftFloat nits,
Test nits and Test simplification with ValueSource.
* Add Debug Asserts to A32 helpers
Mainly to prevent the shift ones from being used on I64 operands, as
they expect I32 input for most operations (eg. carry flag setting), and
expect I32 input for shift and boolean amounts. Most other helper
functions don't take Operands, throw on out of range values, and take
specific types of OpCode, so didn't need any asserts.
* Use ConstF rather than creating an operand.
(useful for pooling in future)
* Move exclusive load to helper, reference call flag rather than literal 1.
* Address LDj feedback (minus table flatten)
one final look before it's all gone. the world is so beautiful.
* Flatten OpCodeTable
oh no
* Address more table ordering
* Call Flag as int on A32
Co-authored-by: Natalie C. <cyuubiapps@gmail.com>
Co-authored-by: Thog <thog@protonmail.com>
* Start of the ARMeilleure project
* Refactoring around the old IRAdapter, now renamed to PreAllocator
* Optimize the LowestBitSet method
* Add CLZ support and fix CLS implementation
* Add missing Equals and GetHashCode overrides on some structs, misc small tweaks
* Implement the ByteSwap IR instruction, and some refactoring on the assembler
* Implement the DivideUI IR instruction and fix 64-bits IDIV
* Correct constant operand type on CSINC
* Move division instructions implementation to InstEmitDiv
* Fix destination type for the ConditionalSelect IR instruction
* Implement UMULH and SMULH, with new IR instructions
* Fix some issues with shift instructions
* Fix constant types for BFM instructions
* Fix up new tests using the new V128 struct
* Update tests
* Move DIV tests to a separate file
* Add support for calls, and some instructions that depends on them
* Start adding support for SIMD & FP types, along with some of the related ARM instructions
* Fix some typos and the divide instruction with FP operands
* Fix wrong method call on Clz_V
* Implement ARM FP & SIMD move instructions, Saddlv_V, and misc. fixes
* Implement SIMD logical instructions and more misc. fixes
* Fix PSRAD x86 instruction encoding, TRN, UABD and UABDL implementations
* Implement float conversion instruction, merge in LDj3SNuD fixes, and some other misc. fixes
* Implement SIMD shift instruction and fix Dup_V
* Add SCVTF and UCVTF (vector, fixed-point) variants to the opcode table
* Fix check with tolerance on tester
* Implement FP & SIMD comparison instructions, and some fixes
* Update FCVT (Scalar) encoding on the table to support the Half-float variants
* Support passing V128 structs, some cleanup on the register allocator, merge LDj3SNuD fixes
* Use old memory access methods, made a start on SIMD memory insts support, some fixes
* Fix float constant passed to functions, save and restore non-volatile XMM registers, other fixes
* Fix arguments count with struct return values, other fixes
* More instructions
* Misc. fixes and integrate LDj3SNuD fixes
* Update tests
* Add a faster linear scan allocator, unwinding support on windows, and other changes
* Update Ryujinx.HLE
* Update Ryujinx.Graphics
* Fix V128 return pointer passing, RCX is clobbered
* Update Ryujinx.Tests
* Update ITimeZoneService
* Stop using GetFunctionPointer as that can't be called from native code, misc. fixes and tweaks
* Use generic GetFunctionPointerForDelegate method and other tweaks
* Some refactoring on the code generator, assert on invalid operations and use a separate enum for intrinsics
* Remove some unused code on the assembler
* Fix REX.W prefix regression on float conversion instructions, add some sort of profiler
* Add hardware capability detection
* Fix regression on Sha1h and revert Fcm** changes
* Add SSE2-only paths on vector extract and insert, some refactoring on the pre-allocator
* Fix silly mistake introduced on last commit on CpuId
* Generate inline stack probes when the stack allocation is too large
* Initial support for the System-V ABI
* Support multiple destination operands
* Fix SSE2 VectorInsert8 path, and other fixes
* Change placement of XMM callee save and restore code to match other compilers
* Rename Dest to Destination and Inst to Instruction
* Fix a regression related to calls and the V128 type
* Add an extra space on comments to match code style
* Some refactoring
* Fix vector insert FP32 SSE2 path
* Port over the ARM32 instructions
* Avoid memory protection races on JIT Cache
* Another fix on VectorInsert FP32 (thanks to LDj3SNuD
* Float operands don't need to use the same register when VEX is supported
* Add a new register allocator, higher quality code for hot code (tier up), and other tweaks
* Some nits, small improvements on the pre allocator
* CpuThreadState is gone
* Allow changing CPU emulators with a config entry
* Add runtime identifiers on the ARMeilleure project
* Allow switching between CPUs through a config entry (pt. 2)
* Change win10-x64 to win-x64 on projects
* Update the Ryujinx project to use ARMeilleure
* Ensure that the selected register is valid on the hybrid allocator
* Allow exiting on returns to 0 (should fix test regression)
* Remove register assignments for most used variables on the hybrid allocator
* Do not use fixed registers as spill temp
* Add missing namespace and remove unneeded using
* Address PR feedback
* Fix types, etc
* Enable AssumeStrictAbiCompliance by default
* Ensure that Spill and Fill don't load or store any more than necessary
* Profiler initial setup
* Capture actual timing data
* Profiling data dumped to file on close
* Support for multiple sessions under the same name
* Service profiling
* Sort output for easier read
* csv output
* Split session into 2 seperate values
* Refactor name to category
* Basic profiling window dummy. Toggle with F1 or set key with config
No actual data displayed yet, just a pretty triangle
* Simple font rendering
* Display some actual timing data
* Fix font bearing being ignored
* x bearing and advance. Fixed y bearing calc
* Different coloured lines to make reading easier
* Scrolling
* Multiple columns for name
* Column titles
* display in ms rather than ticks
* Bars to display times
* Sortable columns
* Regex filtering
* Better instant timing calculation
Fixed minor regex bug
* Better filtering
Better max value calculation
Skip some rendering to reduce profiler weight
* Variable update rate
* Show/hide inactive button
Some other touchups
* Add missing project reference
* Hide inactive and pause
* Fix viewport errors
* Update initial window position
* Variable name cleanup
* Disable timing dump by default
* Internal Profile refactor and cleanup
* Timing info cleanup
* Profile config cleanup
* Settings cleanup
* Button refactor
* Profile refactor
* Profile window cleanup
* Window manager refactor
* Font service cleanup
* Fixed bug in profiling method where method was called twice without profiling enabled
* Allow update rates of less than 1hz
* Stop using window.run because it's apparently not great for performance.
Some other performance things, should only draw a new frame when something has changed
* Improved time tracking to keep history
* Profile window was getting too long so I added regions and split bar rendering out into partial class
* Dummy graph view with button to toggle
* Realtime graphing initial commit
* Display totals on new bar
* Simple zooming support with arrow keys
* Limit graph zoom and label start and stop
* Added support for timing flags
* Stop data running away when paused and frame updated
* Manual step button
* Update at when flag issued (ie every frame)
* Removed useless finish profiling call
* Enable and disable profiling at compile time.
* Better plage for frame swap flag, also kept enough flags to cover larger time spans
* No more stopwatches created, uses PerformanceCounter now
* public and internal fields to props
* Move visible update to update rather than draw as it causes a lockup if called from draw
Also added profile window disposal so closing main window closes profiler too
* Fixed optimization settings for profiled builds
* Appveyer script guess to add profiling builds
* Quotes
* 1 less quote
* Maybe escape space?
* Specify config
* Different approach
* Fix file paths
* Fix another path
* Better artifact naming
* Missing -
* test string
* Removed for, to test
* readd for
* moved dashes around so artifacts can begin with letters
* quote env vars
* martix
* Removed configs
* Much more efficient capture, ConcurrentDictionary was causing too much overhead
* Skip repeating pixels during draw
* Stop ram usage getting too high. Compensating for cleanup doing more now
* Profile CPU, execute skipped because it's just too much work
* Fixed bug with skipping draws. Furthest needed to be reset every loop
* Less distracting colour for timing flags
* Removed profile method function. It just doesn't play nice with conditional compilation so best to remove it now before it's used a lot
* Null check for category, group and item
* Forgot to reset instant count/time
* Increment line when blank
* Fix threading conflict
Fixed instant count and time. Now accuratly represents the total time and count in the buffer
* Fixed bug in time rendering where times were being trimmed to an int.
Also added microsecond/millisecond formatting to reduce the number of decimal places needed
* Support for multiple profiling levels
* Sometimes it would have to wait a long time for lock to clear so moved it to a tryenter and skip if already locked
* Dumb bug regarding clearing of timestamps. Start is already removed so no need to add it to the start
* Optimisations in drawing routine:
Only calculate bar top and bottom once per bar rather than once per timestamp
Pre-calculate the right side of the graph as it was being calculated multiple times per bar
Skip rendering timestamps that occupy the same pixel space now uses the raw timestamp to decide. While technically not as accurate it's much easier as the right side of the bar doesn't have to be calculated for a skipped timestamp
* Couple alignment changes
* Custom equals overload for profile config. The default implpmentation was just too slow
* Bump cleanup thread priority. It clears the timer queue so it need to be run frequently
* Fixed bug with scrolling caused by recent rendering optimisations. Simply forgot to increment the line index on a skipped line
* Stopped blocking memory disposal so much. Also parralised(?) cleanup call
* Uses Arial for font.
* Enable AA
* Inital seperated config support
* Fix profile input from keyboard
* Check toggle visible key from profiler
* Can't use conditional here as _profileWindow doesn't exist it non-profiling build
* Removed junk from merge in sln
* Fromatting cleanup for review
* Fiked small bug caused by race condition
* Added multiple flags with colours
Added way to set max flags
* Fixed flag times
Dispays time flags in window
* Colors for text frame times
* enable and disable flags button added
better fix for race crash
* Re factored npad out
* Explicitly specified type in foreach
* Removed extra line
* Added s to fix nit
* Comment to clarify default time
* Another s nit
* Ordering nit
* Uses Interlocked.Increment over lock
* Unindented #if's and #regions
* Comment to clarify these are indexes in the list
* Uses iequatable over override equals to avoid conversion and checks at runtime
* Removed no longer used variable
* Implement speculative translation on the cpu, and change the way how branches to unknown or untranslated addresses works
* Port t0opt changes and other cleanups
* Change namespace from translation related classes to ChocolArm64.Translation, other minor tweaks
* Fix typo
* Translate higher quality code for indirect jumps aswell, and on some cases that were missed when lower quality (tier 0) code was available
* Remove debug print
* Remove direct argument passing optimization, and enable tail calls for BR instructions
* Call delegates directly with Callvirt rather than calling Execute, do not emit calls for tier 0 code
* Remove unused property
* Rename argument on ArmSubroutine delegate
* Change naming convention for Ryujinx project
* Change naming convention for ChocolArm64 project
* Fix NaN
* Remove unneeded this. from Ryujinx project
* Adjust naming from new PRs
* Name changes based on feedback
* How did this get removed?
* Rebasing fix
* Change FP enum case
* Remove prefix from ChocolArm64 classes - Part 1
* Remove prefix from ChocolArm64 classes - Part 2
* Fix alignment from last commit's renaming
* Rename namespaces
* Rename stragglers
* Fix alignment
* Rename OpCode class
* Missed a few
* Adjust alignment
* Keep track mapped buffers with fixed offsets
* Started rewriting the memory manager
* Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks
* MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks
* Rebased
* Optimize the map/unmap physical memory svcs
* Integrate shared font support
* Fix address space reserve alignment
* Some fixes related to gpu memory mapping
* Some cleanup
* Only try uploading const buffers that are really used
* Check if memory region is contiguous
* Rebased
* Add missing count increment on IsRegionModified
* Check for reads/writes outside of the address space, optimize translation with a tail call
