box64/docs/CHANGELOG.md

v0.3.4
======
* This version is Faster and more compatible:
    => The RV64 backend got faster and more stable, with lots of RVV 1.0 / xThreadVector support to emulate SSE/SSE2+ opcode (no AVX yet)
    => On ARM64, Box64 now support more DRM types than before.
    => BOX32 can run steam now. At least on ARM64 backend, it's still not working on RV64 and LA64 for now.
* Added support to emulate Windows Syscall (needs Proton and a 48bits address space for now)
* Added BOX64_DYNAREC_DIRTY to have a faster (but less safe) way to handle code that write in it's current page
* Added a few rarely used opcodes
* Added experimental support for GDBJIT, that allow an x86/x86_64 program to be debugged on ARM/RV64/LA64 platform with x86 regs and opcode view (might generate a lot of file tho)
* Added support for Perf tools in a similar way if GDBJIT, to have an x86 fine view of the performances
* Reworked undefined flags for common operations, to be similar to real CPU
* Reworked cpuid handling, adding BOX64_CPUTYPE support to select Intel/AMD emulation (no 3DNow! support on AMD for now)
* Reworked ucontext link to be closer to the real thing (and make it more simple)
* Improved memory traking, file descriptor backed memory map, and detect wine loaded dll
* Introduced settings per library and dll (mostly for Dynarec)
* Wrapper: More functions addes, and some fixes too
* BOX32: Many fixes around pthreads wrapping
* BOX32: More functions wrapped.
* BOX32: More libraies wrapped.
* BOX32: Some reworks on how high memory (higher than 32bits) is masked, and can be used for Dynarec blocks.
* Dynarec: The usual batch of fixes, improvments and opcodes additions on all 3 supported backend
* Dynarec: Some fixes to NativeFlags handling, both on ARM64 and RV64
* Dynarec: Added optimized REP MOVSB (expected for default CPUTYPE=0, according to new cpuid return)
* Dynarec: LA64: more opcoded addes, using hardware extensions like AES
* Dynarec: RV64: More work on using RVV 1.0 and xTheadVector extension to emulate SSE/SSE2+ opcodes
* Dynarec: RV64: Added informations on flags when building blocks, to be used when a signal happens to rebuild a x86 context more accurate
* Dynarec: ARM64: Reworked undefined flags for common operations, to be similar to real CPU
* Dynarec: ARM64: Added informations on flags and xmm/ymm/x87 register when building blocks, to be used when a signal happens to rebuild a x86 context 100% accurate
* TRACE: Reworked how trace for wrapped function call is printed.
* TRACE: Reworked logs to prefix each line with a (optionaly colored) BOX32 or BOX64
* COSIM: Some rework on cosim to limit false negative, especialy when handling x87 operations
* LA64: Added limited support for ABI 1.0
* CI: github CI now also generate MiceWine .rat archive, along with Winlator .wcp archive and regular linux builds.
* RCFile: Added many new games profiles (both for speed improvment or for compatibilty)

v0.3.2
======
* Introduced Box32 to run 32bits apps on 64bits OS
    => Box32 is a build option for Box64, and is disabled by default
    => Optionnal binfmt integration available for Box32
    => Wrapped some basics libs, including graphics and sounds so a few games already works
    => Work In Progress, many issues remain to be fixed, but some Linux games are playable
* Introduced Native Flags. Can be controled with BOX64_DYNAREC_NATIVEFLAGS, but enabled by default
    => Available on the 3 Dynarec backend, with different implementations
    => ARM64 Dynarec build have all AVX/AVX2 extensions enabled by default
    +> Can lead to large speedup on certain cases
* Improved Strong Memory Model emulation, with better default options and a more efficiant emulation
* Dynarec: RV64: using RVV (and XThreadVector) to implement SSEx opcodes, with some massive speedup when used!
* Some bugfix and improvment in the Signal handler and internal memory tracking
* Improvment to TRAP signal generation and Handling
* Improved CPUID opcodes again, and the various virtual file in /proc that represent those data
* Improved some x87 operations, like long double handling and infinity comparisons...
* Dynarec: ARM64 fixes to a few opcodes
* Dynarec: RV64 fixes to many opcodes
* Dynarec: LA64 fixes to a few opcodes
* Dynarec: RV64 fixes and improvments on LOCK prefixes opcodes
* Dynarec: Many optimisation on some individual opcodes, an all 3 backends
* WRAPPING: More libs and functions wrapped. Some wrapping fixes too
* WREPPING: New wrapperhelper to help coding new wrapping & fixing/enhancing existing one
* ElfLoader: Improved object fetching
* New build profile for SD865 and ORYON
* Changed the installation folder of x86 libs to avoid conflict with linux distro
* Added a few syscalls
* Some more Vulkan extensions wrapped
* More work on build system, and github CI (generating WCP archive), with some fixes on the Android version (still not 100% operational)

v0.3.0
======
* AVX and AVX2 implemented, along with BMI1, BMI2, ADX, FMA, F16C and RDANDR extension!
* Introduced BOX64_AVX env. var. to enable/disable AVX extension:
    => BOX64_AVX=1 enable AVX, BMI1, F16C and VAES extension
    => BOX64_AVX=2 also enable AVX2, BMI2, FMA, ADX,VPCLMULQDQ and RDRAND
* Dynarec: Implemented most AVX/AVX2 and friends in ARM64 Dynarec (using only NEON, so available on all ARM64 CPU)
    => ARM64 Dynarec build have all AVX/AVX2 extensions enabled by default
* Improved CPUID opcodes, adding a few leaf, fixing same. Returnning an Haswell type of CPU now (was Pentium IV before)
* Dynarec: Small optim in the emit_pf helper, on all 3 backends
* Dynarec: ARM64 some fixes to a few opcodes
* Dynarec: LA64 many new opcodes added, and fixes.
* Dynarec: RV64 some new opcodes added, many fixes.
* Dynarec: RV64 Adding some infrastructure to use RVV (if available) for SIMD emulation.
* Dynarec: Many small changes and fixes around handling of x87, registers and internal jump.
* WRAPPING: Added a workaround on SDL_GetThreadID to fix a race condition that was happening mostly on LA64 and broke many SDL games
* WRAPPING: More libs and functions wrapped. Some wrapping fixes too (including a nasty error on some rare libGL functions)
* WRAPPING: Wayland is now supported. Wine-wayland at least works now
* Dynarec: LA64 improved LOCK CMPXCHG handling, and better 16Byte LOCK handling too (fixes many Unity3D games)
* Dynarec: RV64 improved LOCK CMPXCHG handling
* COSIM: Many fixes and improvment, to make BOX64_DYNAREC_TEST more usable
* Detect when a Wine program use UnityPlayer.dll to atumaticaly use BOX64_DYNAREC_STRONGMEM=1 (unless it's already set), so more games just work
* ElfLoader: Added a new type of relocation

v0.2.8
======
* Wrapping: More libs and function wrapping (gtk3, vulkan...)
* Reworked X11 Callback handling, for better stability
* Reworked exit and the load/unload of libs and symbol resolution
* Some more profiles in box64rc
* Better way to rename executable (including wine ones) so driver like mesa can apply the correct profile
* Reworked memory managment in the Dynarec, limiting amount of dynamic allocation
* Improved memory tracking and managment. Also introduce BOX64_MMAP32 to force 32bits compatible mmap for external libs (like mesa)
=> Allow Vulkan drvier on Wine/WOW64 games to allocate 32bits compatible memory, allowing dxvk on 32bits.
* Reworked memory managment in the Dynarec, limiting amount of dynamic allocation
* Lots of improvments in x87 handling (virtual stack, rounding, ffree, etc.)
=> should improve games stability
* Dynarec: ARM64 some opcodes optimisation, especialy shift and rotation ones
* Dynarec: RV64 lots of opcoded added.
=> Some games on linux now have a good speed. Game on Wine are still a bit slow, and dxvk still have issues
* Dynarec: Added Loogarch backend! Note that Loongarch are 16K pagesize platform by default.
=> Linux games are running, and with good speed, especialy on 3A6000 platforms. Games on Wine are not working yet due to 16k pagesize limitation
* Dynarec: Better handling of large block in the dynarec
* Dynarec: Lots of improvments and fixes to BOX86_DYNAREC_CALLRET optimisation.
=> It can be used on more software now, and combine with BOX64_DYNAREC_BOGBLOCKS 2 or 3 can gives some good speed boosts.

v0.2.6
======
* X64Libs: Updated libstdc++ & libgcc_s
* X64Libs: Use x86_64 vrsion of libunwind (it's needed by wine)
* Dynarec: More opcodes on ARM64 & RV64
* Dynarec: Fixed some flags propagation issues inside blocks
* Dynarec: Improved Strong Memory Model emulation, introducing a 3rd level
* Dynarec: ARM64: reworked shift and bit opcodes flags handling
* Dynarec: RV64: Many fixes, making Wow64 apps running
* Dynarec: ARM64: Added support for SSE4.2 (with CRC32 if supported by CPU)
* Dynarec: ARM64: Added support for SHA (with hardware support if CPU allows it)
* Dynarec: ARM64: The CALLRET optimisation has been improved and is now default
* CPU: Remoworked how INT, priviliged opcodes and teh Trace flags works
* CPU: Added full support for SSE4.2
* CPU: Added full support for SHA extension
* ElfLoader: rework how elf memory is handled
* Emulation: Added some more syscalls
* Emulation: Better handling of Signal (also handling SIGMAX correctly)
* Emulation: Better support for POKEUSER/PEEKUSER (helps Windows Unity games)
* Wrapping: More libs and some fixes in function wrapping (gtk3, vulkan...)
* Wrapping: Removed faked libunwind wrapping
* Hardware: Added more profile, with support ADLink Ampere Altra, Qualcomm 8Gen3, and Pi5 machines
* OS: Added profile to build for Android and Termux.
* OS: New option to use mold for a high speed link
=> More hadware support, more functions wrapped for an improve compatibity
=> More CPU extension, with ARM64 hardware support when possible, and improved CALLRET optimisation for an improved speed of emulation
=> Some work also to reduce the memory footprint

v0.2.4
======
* Added Dynarec for RISC-V
* Added partial 32 bits support (WoW64 works)
* Changed cpuid to display box64
* Fixed steam, again
* Improved hacked version for overridden malloc/free functions
* More wrapped libs
* More wrapped functions and syscalls
* Reduced memory footprint
* Added support for the BIND_NOW flags in ELF files
* Added RTLD_NOLOAD support
* Fixed some typos and general cleanup, again
* Added a cosimulation mode (to compare the behaviour of the dynarec with the interpreter)
* Added FASTNAN/FASTROUND handling for more opcodes
* Better float/double/long double handling
* Better dlopen/dlclose handling
* More games in the rc file
* Added BOX64_DYNAREC_MISSING to show only missing opcode, independantly of the log level
* Added BOX64_RESERVE_HIGH to reserve addresses above 47bits
* Improved multitreading support
* Ukrainian translation of the README
=> Dynarec now support RISC-V, large speedup on RISC-V 64, were games are now playable (like Stardew Valley on a Vision Five 2)
=> Improved compatibility with more fixes in elf handling, more wrapped libs and functiond, more fixed opcodes and refined profile

v0.2.2
======
* Added a hacked version for overridden malloc/free functions, enabling libcef (and derivative) to work.
    => Steam Large mode and new BigPicture are working
    => Heroic Launcher is working
* Added rcfile handling: box64 now read `/etc/box64.box64rc` and `~/.box64rc` and apply per process parameters
    => Every program can be finetuned, for speed or just to make them work
* Added BOX64_DYNAREC_CALLRET to optimized CALL/RET opcode using semi-direct native CALL/RET (get more than 10% speedup)
* Added BOX64_DYNAREC_FORWARD to allow bigger Dynarec block to be build (can get more then 30% of Speedup!)
* Improved memory protection tracking and signal handling, again
* Box64 now return a custom name for the CPU instal of P4, build with Box64 and the cpu name it's running on
* Simplified mutex handling (faster, cleaner)
* Reduce memory used by the memory tracking (memory almost divide by 4 is some critical use case)
* Added d3dadapter9 wrapping
    => gallium nine is now supported on box64 too
* More wrapped libs (especially on the gtk familly)
* Improved/fixed some Syscall handling
* Refactored Strong Memory Model emulation (faster and more accurate)
* Added some more opcode to ARM64 Dynarec, and fixed some other
* Some fixes to flags handling in the Dynarec on some special cases
* Refactor library loading/unloading, with refcount.
* Some special cases fixes for dlopen (fixes deadcells, maybe others too)
* Improved mmap mapping, espcially with MAP_32BITS flag
* More wrapped functions and syscalls
* Lots of improvment in the Rounding of float & double (Dynarec and Interpreter), and proper handling of denormals when converting to/from 80 bits long double
* Added specific suppport for RK3588 board (needed some hack in signal handling, probably due to the use of a non mainlined kernel)
* More support on the RV64 port
* More support to build under musl environment

v0.2.0
======
* Wrapped more vulkan function, dxvk 2.0 now works
* Added support for overridden malloc/free functions
* Refactor Dynarec memory management, reducing memory footprint (from 20% to 40% of Dynarec size)
* Improved elf loader
* Improved dlsym handling with RTLD_NEXT
* Added BOX64_DYNAREC_SAFEFLAGS to allow finetuning Dynarec generated code handling of flags accross function calls and returns.
* Added BOX64_BASH to setup x86_64 bash binary, so shell script can be run in x86_64 world 
* Added BOX64_ROLLING_LOG to have details log only on crash
* Work on alignment for some of pthread structures
* More wrapped libraries in the gtk family
* Some fixes on the Dynarec x87 code (fixing a bunch of games like ut2004 or Piczle Puzzle)
* Improved TLS Size handling (Unity3D games now works)
* More PageSize Compile options
* Improved `execv` family of function to have better box64 integration
* Added support for wrapped libfuse so AppImage works
* Adjusted the binfmt integration so AppImage are automaticaly picked
* Improved FAudio, SDL2, GL (and more) wrapping
* More wrapped libs, like libEGL.so, to helps emulated Qt4/5 libs to load
* Improved Signal Handling and memory protection traking
* Some signature fixes to some wrapped functions (in libc)
* Added more syscalls
* Added a lot of new opcodes to the ARM64 Dynarec
=> Lot's of new games stat working, to name a few: Surviving Mars, Piczle Cross Adventure (using Proton experimental), UT2004, Obduction, Machinarium, Silicon Zero, Hacknet, Absolute Drift, Art of Rally, Dota2
=> Some apps also runs now, like TeamSpeak 3 Client and Server or Discord
=> The bash integration is usefull for device with no binfmt integration or for script that check the machine it's running on

v0.1.8
======
* Added an option to get generated -NAN on SSE2 operation
* Many small fixes and improvement to get SteamPlay (i.e. proton) working (along with box86)
* Added some workaround for program calling uname to mimic x86_64 system
* Added some granularity to mmap, and generic memory protection tracking improvment, to mimic x86 system (for wine stagging and proton)
* Better clone syscall and libc implementation
* Improved wrapping of GTK libs
* More wrapped libs (more gtk libs, like gstreamer-1.0 among other non-gtk libs too)
* More wrapped functions(with some tricky one, like dladdr1)
* Some fixes and improvment to some wrapped functions
* Refactor Dynarec:
    * better handling of SSE/x87 registers
    * optimisation to limit float/double conversion
    * better handling of "internal" jump inside a dynablock
    * make adding new architecture easier, by sharing as much infrastructure as possible
* Improved elfloader
* Improved some tests
* Improved a bit the "Hotpage" handling and messages
* Added more dynarec opcodes
* A few fixes in some Dynarec opcodes
* A bit more optimisation in some Dynarec opcodes
* Don't quit on unsupported syscall, return -1 / ENOSYS error
* Added some more Syscall
* Wrapped Vulkan library. Vulkan and dxvk now supported!
* Support building on PPC64LE (interpreter only)
* Added support for Risc-V (interpreter only)

v0.1.6
======
* Introduce "HotPage", to temporarily disable Dynarec on a page were writing is also occuring (can help speed up C# code)
* Some work on Dynarec to limit the number of mutex use, and also allow smaller block to be built (for JIT'd programs)
* Introduce BOX64_DYNAREC_STRONGMEM for the (Arm) dynarec to emulate StrngMemory Model (needed by some games, like RimWorld)
* More functions wrapped
* Improve speed of the custom allocator used by dynarec and Hash (speedup loading)
* Added a workaround for streamwebhelper to not load it
* More opcodes added
* More wrapped libraries, including gtk2
* Added a fix for linking box64 on system using glibc 2.34+
* Some residual fixes on thread attribute handling
* Better handling of app that want 32bits jumps, like unity3d/mono (thanks mogery)
* More ARM hardware option in CMake (Phytium, NX...)
* Added loongarch64 support (interpreter only)
* Some fixes to elfloader
* Added a mecanism to cancel a Dynarec block construction if it triggers a segfault (instead of a crash)

v0.1.4
======
* Reworked README a bit
* Added some more wrapped libs
* Added some SSE4x opcodes
* Preliminary support for VSyscall (still missing VDSO)
* Added support for AES-NI cpu extension, also in Dynarec (and using ARM extension if present)
* Added some syscall
* Added some more wrapped functions
* Improvment to the handling of longjmp inside signal handlers
* Improved wrapper helpers (from rajdakin)
* Some fixes to opcodes (especially C2 flags for some x87 opcodes)
* Handling of some specific opcode as privileged instruction (instead of NOP)
* Fixed ELF signature detection
* Some fixes to a few env. var. handling

v0.1.2
======
* OpenSource!
* A few more opcode added to the Interpreter and the Dynarec
* Improved Native Function calling
* Added some function to limit allocated memory to 47bits space (for Wine)
* Improved and Fixed the functions to limit allocated memory to 32bits space
* Wine is starting now, but not everything and every version works

v0.1.0
======
* Improvement to ElfLoader
* More opcode added to the Dynarec
* More lib wrapping
* Some fixes to a few function signature
* Improvement to Signal handling, and internal mutex handling
* A few fixes to some dynarec opcodes
* A few fixes to some interpreter opcodes

v0.0.8
======
* Improvement to SSE/x87 handling
* More opcode added to the Dynarec
* More lib wrapping

v0.0.6
======
* Added Dynarec for ARM64
* Many general CPU opcode added to the Dynarec
* Many SSEx opcodes added to the Dynarec
* Added a few more symbols in libc
* A few changes to the "thread once" handling
* New Logo and Icon from @grayduck

v0.0.4
======
* Added a lot of opcodes
* Added SDL1 and SDL2 wrapping
* OpenGL/GLU wrapping done
* libasound / libpulse wrapping done
* libopenal / libalure / libalut wrapping done
* Many X11 libs wrapped
* Added "install" with binfmt integration
* A few games are actualy starting now (old WorldOfGoo, Into The Breach, VVVVVV and Thimbeweed Park)

v0.0.2
======
* Using box86 as a base, implemented most planned box64 part except dynarec
* Wrapped a few libs
* ELF loader a bit crude, but seems working
* Signal handling implemented
* MMX and x87 are sharing their registers