Changelog for libretro-picodrive-0~git20210611-1699.1.pm.68.x86_64.rpm :

* Sat Jun 12 2021 iAATTguoyunhe.me- Update to version 0~git20210611:
* Fix minor typo (harmless cast of a buffer to an incorrect type)
* Add support for RETRO_ENVIRONMENT_SET_CONTENT_INFO_OVERRIDE API extension - enables soft patching of non-CD content
* move conditional out of loop
* libretro, fix psp emulation display (RGB instead of BGR)
* VDP DMA/CPU access timing improvements
* 68k, synchronize timing in fame and musashi (for debugging)
* sound, fix ym2612 output volume for keyon and level changes
* sh2 interpreter, minor improvement for irq handling
* 32x, minor improvement for poll detection
* sh2 drc+interpreter, minor improvement for cycle counting
* 68k, fix timing for BTST #imm,Dn and ADDQ.W #imm,An in fame
* mcd, optimizations for polling detection
* Add STATIC_LINKING_LINK
* Define STATIC_LINKING for emscripten
* Don\'t attempt to bake in compat_strcasestr when static linking is defined
* mcd, improve polling detection
* mcd, improve polling detection
* 32x, drc, fix saving SH2 SR in dma
* Buildfix
* Cleanup
* m3u:Fix \"last disk index\" not loaded correctly
* Update libretro-common
* Add support for m3u playlist format
* core, big endian fix (cart sram detection)
* mcd, improve polling detection
* ui, scaling in sdl window mode (ATM hidden)
* libretro, build change for PS3 (disable drc)
* mcd, fix timing for irq while polling detected
* mcd, fix crash when unloading cd while playing audio
* platform, fix debug hex dump if char type is signed
* libretro, build changes for ngc/wii/wiiu
* Fix PSP compilation
* Update .gitlab-ci.yml
* improvements for type issues
* fixes for big endian (mostly mcd)
* build, fix old dingux audio (disable static linking)wq
* build, tiny release script improvement
* build, do arch/fpu settings only for known platforms
* libretro, fix mmap replacement (content intialized to 0)
* sh2 drc, debug stuff
* sh2 drc, fix powerpc cache handling
* sh2 drc, fix powerpc eabi compatibility
* platform, debug dump if no disassembler support
* mcd, add dr_mp3 playback support
* sh2 drc, debugging fixes
* 68k, fix musashi support (for debugging only)
* ui, fix sound filter strength not read from config file
* sh2 drc, tiny optimization for x86
* libretro, add input bitmask support
* ui, fix gmenu2x control files (correct category, add chd to filelist)
* Update .gitlab-ci.yml
* libretro, build fix for ngc/wii/wiiu
* libretro, build fix for ngc/wii/wiiu
* md, fix irq priority handling for H-int
* 68k, fix unpredictable instruction in ARM asm
* 32x, scheduling optimization
* sh2 drc, fix optimized standard division
* 32x, draw, avoid some warnings
* 32x, fix speed regression (wt memory write optimization)
* 32x, arm asm draw optimization
* sh2 drc, x86 fix, revert 6f64058 (carry usage in NEGC/DIV1)
* release 1.98
* add build script for release
* build improvements for gph/psp devices
* make, improve build for devices using (open)dingux
* make, add legacy dingux and retrofw, make libavcodec optional
* ui, revised menu
* update libpicofe
* libretro, fix missing intialization for renderer
* Add od-beta
* libretro, turn of DRC for Apple OSes
* make, some cleanup, slightly better support for legacy dingux
* vdp fifo, adjust latency delay
* attempt for DRC support for newer versions of osx/ios
* attempt for DRC support for newer versions of osx/ios
* cleanup for psp
* sh2 drc, debug stuff
* sh2 drc, don\'t use x29 (frame pointer) in arm64 backend
* sh2 drc, adjust max ld/st offset in arm backend
* sh2 drc, fix oversize blocks ending with JSR/BSR
* sh2 drc, x86 backend, optimize move #0 with xor
* sh2 drc, fix reading from constant memory address
* Add osx-arm64
* libretro, build fix for ps2
* mcd, fix memory leaks
* switch to libchdr with dr_flac
* core, libretro fixes for chd support
* core, chd support
* Add ios-arm64/tvos-arm64
* core, chd support
* ui, revised menu and option handling, added sound filter settings
* vdp rendering, fix crash for sprites with negative x/y (overlooked commit)
* vdp rendering, fix crash for sprites with negative x/y
* core, more on chd support
* core, groundwork for chd support
* fixes for big endian support (svp drc, libpicofe update)
* ui, fix for changing SDL emulation display
* add big endian platform support
* preparation for retrofw and legacy opendingux support
* fixes for platform support for PSP: show fps, notices, CD leds
* fixes for platform support for PSP
* fixes and improvements for type issues, part 3
* ui, fix for SDL emulation display if resolution != 320x240
* sh2 drc, powerpc fixes for OSX, 32 bit, cache handling
* cz80, fix flags for OUT[ID]/OT[ID]R
* gp2x, fix for 8bit fast renderer regression
* vdp renderer, partial sync 8bit fast ARM asm with C code
* partially revived platform support for PSP (unfinished), part 4
* sms, fix 8bit fast renderer
* 32x, fix BGR565 rendering
* gp2x, fix to show pico ptr
* vdp renderer, improvements for 8bit fast
* ui, fix for gfx save/load menu bg (menubg_src != screen)
* ui, fix linux handling of 32x renderer
* update libpicofe
* partially revived platform support for PSP (unfinished), part 3
* ui, fix battery display for platforms with screen != menuscreen
* fix for config save, custom value types not written correctly
* Prepare repo for new toolchain
* 32x renderer, fix for render buffers with pitch != line width, some speedup
* sh2 drc, fix for MIPS EABI
* partially revived platform support for PSP (unfinished) #2
* Add generic x86/x86_64 and Aarch64
* partially revived platform support for PSP (unfinished)
* Update .gitlab-ci.yml
* Update .gitlab-ci.yml
* core, structural cleanup, fixes and improvements for type issues #2
* fix building for arm arch below armv6 (gp2x, bittboy)
* core, fixes and improvements for type issues
* configure, fix for newer gcc
* fixes for gcc warnings wrt 64 bit platforms
* Change this
* sound, improved and optimized reimplementation of libretro lowpass filter
* Update
* ui, separate sdl keymaps to avoid warnings with -flto
* OpenDingux: Add missing compiler flags from standalone makefile
* Update .gitlab-ci.yml
* SDL, better handling of 2x overlay mode
* improve mips disassembler to handle most of N32 code
* vdp, fix for loading saved gfx state
* 32x, tentative fix for pad handling
* 32x, restore old fix for X-men
* cz80, improve cycle accounting
* 32x, tiny optimization for memory access
* mcd, add minimp3 playback support, fix libavcodec playback
* vdp rendering, fix handling of palettes 0-2 color 14 in sprite drawing
* vdp, fix for 68k access timing
* vdp, kludge for z80 access
* fixes for memory leaks and out of bounds memory access found by ASAN or gcc -flto
* ui, turn cursor off in SDL (was on by default on GKD)
* libretro, improve ps2 support, switchable renderers, 32X support w/ DRC
* libretro, add new good (aka 8bit accurate) renderer, fix 256px mode rendering
* vdp, add handling of external buffers for fast renderer
* libretro, fix version string
* libretro, improve toolchain path handling for GCW0
* rendering, fix bgr555 output mode
* drc, fix libretro removing of gcc-only syntax
* libretro, fix apple os builds
* libretro, fix handling of zlib
* make, improve detection of gcc
* Merge from libretro/master:46902e0 for repo synchronization
* release 1.97
* sh2 drc, fix for mapping in register cache
* mcd, tentative fix for hanging
* mcd, fix for slave polling detection
* mcd, fixes for cycle accounting
* ui, revise status line handling
* mcd, fix SEEK status reporting
* switch libpicofe to local repo
* sh2 drc, fix sh2 reg enum usage
* sh2 drc, fix PIC function calling for MIPS backend
* fix key mapping for opendingux platforms
* fix for config reading of key mappings
* sh2 drc, fixes for cache handling on arm and mips cpus
* libpicofe, new version for triple buffering with sdl
* add a hack for Decap Attack
* sh2 drc, MIPS cache maintenance optimisation
* sdl, enable triple buffering
* sh2 drc, fix for cpu cache handling
* sdl ui, fix status line artifacts if starting with rom on cmdline
* sh2 drc, improve T bit propagation
* sh2 drc, fix for cpu cache handling
* more rendering fixes and optimisations
* ui, fix sdl flickering and status lines artifact issues
* vdp rendering, fix SAT caching for high addresses >64KB
* vdp rendering, fix fast-forward graphics
* vdp rendering, layer drawing optimisation
* vdp rendering, cleanup and optimisation
* frontend, fix scaling option handling
* vdp rendering, fixes and optimisations
* audio, improve YM2413 handling
* vdp rendering, fix window with mixed prio tiles
* mcd, GenesisPlusGX bugfix 18fca13,33a43e3: report SEEK status while seeking
* mcd, fix playing wrong audio track after seek
* vdp, fix for gfx save/load menu bg
* vdp rendering, fix sprite masking and interlace layer priority
* vdp rendering, fix highlight op on shadow
* arm asm, tiny optimisation for 68k mem access
* vdp, test code for 8 bit fast renderer
* update author info
* sh2 drc, standalone testing tool
* sh2 drc, fix symbol clash
* vdp fifo, tentative fix for hanging DMA
* vdp, optimisation for 8bit renderers
* SDL UI, fix SDL input and SDL window output mode for osx compile
* vdp mode 4, optimisation
* configure, fix for newer gcc
* adding RG350 platform
* correcting the treatment of color number 0
* adding ym2413
* sms mode 4, fix 8 bit renderer code
* audio, fix for speed regression after last commit
* audio, fix sound issues in some intros
* libretro, build fixes for android
* sh2 drc, optimize standard division insns (default off, needs more scrutiny)
* Buildfix
* Buildfix
* Fix more conflicting types for prototypes
* Prevent collission with PS2 SDK
* Make sure function prototype signatures match, and put typedefs into separate header file
* libretro, build fixes for ios
* core, keep offsets header from being build if no preprocessed asm files
* libretro, build fixes
* libretro, build fixes
* core, fix type issues by using stdint types
* libretro, build fixes
* sh2, fix for interpreter crash if drc is compiled in too
* sh2 drc, fix for x86_64 backend
* libretro, more fixes and cleanups for windows and osx
* libretro, changes to allow for both standalone and libretro build
* libretro, fix for windows and osx
* SDL UI, 2x overlay mode, for improved color resolution
* switch submodules to github and update to current version
* libretro make fix for non-arm architectures
* sh2 drc, fix for SH2 T handling in Mips/RiscV
* SDL UI, preparation for 2x mode, for improved color resolution
* sh2 drc, optimisation for SH2 16x16 multiplication
* SDL UI, fix for CD LED display
* sh2 drc, backend 32/64 bit compatibility fixes for Mips/RiscV
* vdp fifo, DMA bugfix
* sh2 drc, add powerpc64le backend
* sh2 drc, preparations for powerpc support
* vdp rendering, bugfix for overlapping high prio sprites
* release 1.96
* add copyright stuff to substantially changed files
* sh2 drc: revised ARM A32 backend optimizer
* 32x: libretro bugfix
* sh2: optimisations in drc
* audio: fix for save/load
* sh2: bugfix in drc
* audio: SN76496 fixes
* 32x poll detection fix
* vdp fifo, bugfix
* audio: add option to switch off SSG-EG
* audio: fixes and optimizations for SSG-EG
* audio: improve cycle accuracy of SN76496+YM2612
* 32x, small improvement for poll detection
* sh2, optimizations to innermost run loop
* add sh2 ubc area to poll detection
* 32x pwm, tiny optimization
* sh2 timer optimization
* menu background fix for pal mode
* ym2612 ARM optimisations
* vdp rendering, sprite caching optimization
* ym2612 ARM, bug fixing and small optimizations
* vdp DMA optimizations
* fix for gp2x audio regression
* vdp fifo speed optimization
* fix for 68K cycle accounting
* vdp rendering fixes
* vdp rendering, fix for CD (sprites from WORD RAM)
* ARM asm, symbol visibility fix
* vdp rendering fixes (debug register, vscroll) for overdrive 2
* vdp fifo speed optimization
* hvcounter table resolution reduced
* vdp rendering improvements
* draw.c, DrawLayer(): impl. proper linescroll, fixes issue #56
* vdp rendering, tiny improvement
* 32x, small improvement for poll detector
* vdp, some small improvements
* fix config file parsing for long filenames
* arm asm sprite rendering: add line accidently deleted in ea431e9
* ARM SVP drc revived
* vdp sprite rendering fixes
* more ARM asm sprite rendering bugfixes
* improved hi prio sprite rendering speed
* vdp, tentative fix for save/load compatibility
* fix for VINT while DMA is running
* fix for EI insn in cz80 (partial revert of 43e1401)
* bugfix for ARM asm sprite rendering
* vdp fifo, refined timing
* vdp sprite rendering fix
* vdp fifo, another revision
* vdp sprite handling improvement (SAT cache)
* vdp fifo, tentative fix for broken save/load
* vdp rendering fixes
* 32X poll detection fix
* fix compatibility with ancient gas
* vdp fifo: kludge for DMA fill interrupted by CPU
* sh2 drc: fix for crash in generated code on x86_64
* revised VDP fifo implementation
* new hvcounter tables as per spritesmind.net threads
* regression fix for gp2x 8bit fast mode
* improved VRAM128K support (overdrive 2)
* VDP timing improvements
* added debug reg sprite plane support (fixes some issues in overdrive 2 demo)
* sprite rendering improvements for masking and limit edge cases
* audio fixes for overdrive demo
* emulator timing fixes, VDP DMA fixes, improved DAC audio
* bug fixes in drc, audio, display
* audio: added SSG-EG to YM2612, plus some timing changes for SN76496+YM2612
* add DC filter to sound mixer to remove potential PCM DC offset
* sh2 drc: updates from mame for ym2612 sound
* sh2 drc: optimize T bit handling for A64
* sh2 drc: fix speed regression
* sh2 drc: cleanup, fix for drc crash, for mips code emitter
* deal with some gcc7+ warnings
* remove textrels with -fPIC/-fPIE (for android/ios)
* sh2 drc, tentative MIPS32/64 Release 2 support
* release 1.95
* sh2 drc: bug fixing
* sh2 drc: fixed some RISC-V bugs
* sh2 drc, small improvements and bug fixes for code emitters
* sh2 drc, improved memory management
* sh2 drc: RISC-V (RV64IM) code emitter, some work on MIPS64
* sh2 drc: RISC-V (RV64IM) code emitter, some work on MIPS64
* sh2 drc: optimizations for MIPS code emitting
* sh2 drc: moved host register assignment to code emitters, minor bugfixing
* Remove unused header
* Only build evdev code on GP2X and Pandora
* 32x, finetuning
* fix gp2x regression
* sh2 drc: reorganised block mgmt code, plus some small scale optimisations
* sh2 drc: bugfix in block management
* sh2 drc: bugfix in block management
* sh2 drc bugfix for aarch64/mips
* 32x, improved auto frame skip, plus new config option for max auto skip
* 32x, configurable pwm irq optimization to reduce pwm irq load
* 32x, speed improvement
* sh2 drc: speed optimization and bugfixing
* sh2 drc: fix i386 regression
* sh2 drc: bug fixing and optimization in register cache and branch handling
* sh2 drc: drc exit, block linking and branch handling revised (overlooked commit)
* sh2 drc: drc exit, block linking and branch handling revised
* sh2 drc: improved RTS call stack cache
* sh2 drc: rework of register cache to implement basic loop optmization
* various smallish optimizations, cleanups, and bug fixes
* cleanup and microoptimizations in SH2 hw handling
* some drawing code C optimisations
* bug fix in comm poll fifo, and back to -O3
* pff... README, 2nd try
* configuration changes and README
* cleanup config files, copyright stuff
* fix for mkoffsets without multiarch binutils
* various small fixes and optimsations
* sh2 drc: add aarch64 backend for A64
* sh2 drc: add mipsel backend for MIPS32 Release 1 (for JZ47xx)
* SH2 drc: register cache overhaul (bugfixing, speed, readability)
* SH2 drc: bug fixing and small speed improvements
* 32X: memory access and polling bug fixes
* sh2 drc, x86 code emitter: use x86-64 registers R8-R15
* 32x DMA memory copy performance optimisation
* sh2 drc, change utils abi to pass sh2 PC in arg0 (reduces compiled code size)
* sh2 drc, keep T bit in host flags as long as possible
* add xSR/RTS call stack cache to sh2 drc
* polling detection: communication poll fifo to avoid comm data loss
* sh2 memory access improvements, revive ARM asm memory functions
* sh2 drc, register cache optimisations
* sh2 drc, block management bugfixes and cleanup
* sh2 drc, add detection for in-memory polling
* sh2 drc, add loop detector, handle delay/idle loops
* sh2 drc, code emitter cleanup, add ARM reorder stage to reduce interlock
* sh2 drc, make B/W read functions signed (reduces generated code size)
* sh2 drc, improved constant handling and register allocator
* speed improvement and fixes for 32x ARM asm draw
* add literal pool to sh2 drc (for armv[456] without MOVT/W)
* sh2 drc, reuse blocks if already previously compiled (speedup for Virtua
*)
* various small improvements and fixes
* overhaul of translation cache and sh2 literals handling
* added branch cache to sh2 drc to improve cross-tcache jump speed
* sh2 memory interface optimzations
* overhaul of the register cache (improves generated code by some 10+%)
* debug stuff, bug fixing
* move saving SH2 SR into memory access and do so only if needed
* add 32bit memory access functions for SH2
* sh2 drc: sh2 addr modes generalization, more const propagation, code gen optimizations
* DRC: reworked scan_block (fix register usage masks, better block and literals detection)
* minor changes
* reworked palette and buffer handling due to some 32X bugs
* revamped 32X draw arm asm code
* kludges for wwf raw, nfl
* substituted tool to obtain target structure offsets (for asm)
* improved sh2 clock handling, bug fixing + small improvement to drc emitters
* sh2 drc host disassembler integration for gp2x
* bugfix for 32x
* bfd-less arm disassembler for gph
* config for x86 (32 bit only, for SH2 drc), add/revive profiling
* arm asm memory access functions for m/s68k
* config templates for gp2x, caanoo, dingux either with system toolchain (open2x,gph,opendingux) or ubuntu arm(gcc 4.7 is highest possible),mips
* arm asm syntax fixes for open2x
* make gp2x mp3 playback functional (need to unpack and compile helix decoder separately in platform/common/helix)
* fix gp2x compilation (using linaro arm gcc 4.7 on ubuntu)
* release 1.93
* libretro: Allow setting GIT_VERSION.
* Makefile: Update one more DEBUG conditional
* Makefile: Build with optimizations if DEBUG=0
* ctr/3ds: attempt to improve cache flushing
* fix some issues with menu bg
* fix a corner case with h-int
* fix DrawSpritesHiAS
* add a header fixup
* sms: improve irq handling
* 32x: implement standard/ssf2 mapper, part 2
* don\'t spam DMA message
* 32x: implement standard/ssf2 mapper
* Wed Sep 02 2020 iAATTguoyunhe.me- Update to version 0~git20200816:
* Fix non-MSVC builds
* Fixed MSVC compilation, VFS
* Sun Aug 09 2020 iAATTguoyunhe.me- Update to version 0~git20200716:
* libretro, build fixes ffor android/ios
* libretro, tentative fix for android build
* sh2 drc, optimize standard division insns (default off, needs more scrutiny)
* Buildfix
* Buildfix
* Fix more conflicting types for prototypes
* Prevent collission with PS2 SDK
* Make sure function prototype signatures match, and put typedefs into separate header file
* core, keep offsets header from being build if no preprocessed asm files
* libretro, build fixes
* libretro, build fixes
* core, fix type issues by using stdint types
* libretro, build fixes
* sh2, fix for interpreter crash if drc is compiled in too
* sh2 drc, fix for x86_64 backend
* libretro, more fixes and cleanups for windows and osx
* libretro, fix for windows and osx
* libretro, changes to allow for both standalone and libretro build
* SDL UI, 2x overlay mode, for improved color resolution
* libretro make fix for non-arm architectures
* sh2 drc, fix for SH2 T handling in Mips/RiscV
* SDL UI, preparation for 2x mode, for improved color resolution
* sh2 drc, optimisation for SH2 16x16 multiplication
* SDL UI, fix for CD LED display
* sh2 drc, backend 32/64 bit compatibility fixes for Mips/RiscV
* vdp fifo, DMA bugfix
* sh2 drc, add powerpc64le backend
* sh2 drc, preparations for powerpc support
* vdp rendering, bugfix for overlapping high prio sprites
* release 1.96
* add copyright stuff to substantially changed files
* sh2 drc: revised ARM A32 backend optimizer
* 32x: libretro bugfix
* sh2: optimisations in drc
* audio: fix for save/load
* sh2: bugfix in drc
* audio: SN76496 fixes
* 32x poll detection fix
* vdp fifo, bugfix
* audio: add option to switch off SSG-EG
* audio: fixes and optimizations for SSG-EG
* audio: improve cycle accuracy of SN76496+YM2612
* 32x, small improvement for poll detection
* sh2, optimizations to innermost run loop
* add sh2 ubc area to poll detection
* 32x pwm, tiny optimization
* sh2 timer optimization
* menu background fix for pal mode
* ym2612 ARM optimisations
* vdp rendering, sprite caching optimization
* ym2612 ARM, bug fixing and small optimizations
* vdp DMA optimizations
* fix for gp2x audio regression
* vdp fifo speed optimization
* fix for 68K cycle accounting
* vdp rendering fixes
* vdp rendering, fix for CD (sprites from WORD RAM)
* ARM asm, symbol visibility fix
* vdp rendering fixes (debug register, vscroll) for overdrive 2
* vdp fifo speed optimization
* hvcounter table resolution reduced
* vdp rendering improvements
* vdp rendering, tiny improvement
* 32x, small improvement for poll detector
* vdp, some small improvements
* fix config file parsing for long filenames
* arm asm sprite rendering: add line accidently deleted in ea431e9
* ARM SVP drc revived
* vdp sprite rendering fixes
* more ARM asm sprite rendering bugfixes
* improved hi prio sprite rendering speed
* vdp, tentative fix for save/load compatibility
* fix for VINT while DMA is running
* fix for EI insn in cz80 (partial revert of 43e1401)
* bugfix for ARM asm sprite rendering
* vdp fifo, refined timing
* vdp sprite rendering fix
* vdp fifo, another revision
* vdp sprite handling improvement (SAT cache)
* vdp fifo, tentative fix for broken save/load
* vdp rendering fixes
* 32X poll detection fix
* fix compatibility with ancient gas
* vdp fifo: kludge for DMA fill interrupted by CPU
* sh2 drc: fix for crash in generated code on x86_64
* revised VDP fifo implementation
* new hvcounter tables as per spritesmind.net threads
* regression fix for gp2x 8bit fast mode
* improved VRAM128K support (overdrive 2)
* VDP timing improvements
* added debug reg sprite plane support (fixes some issues in overdrive 2 demo)
* sprite rendering improvements for masking and limit edge cases
* audio fixes for overdrive demo
* emulator timing fixes, VDP DMA fixes, improved DAC audio
* bug fixes in drc, audio, display
* audio: added SSG-EG to YM2612, plus some timing changes for SN76496+YM2612
* add DC filter to sound mixer to remove potential PCM DC offset
* sh2 drc: updates from mame for ym2612 sound
* sh2 drc: optimize T bit handling for A64
* sh2 drc: fix speed regression
* sh2 drc: cleanup, fix for drc crash, for mips code emitter
* remove textrels with -fPIC/-fPIE (for android/ios)
* sh2 drc, tentative MIPS32/64 Release 2 support
* release 1.95
* sh2 drc: bug fixing
* sh2 drc: fixed some RISC-V bugs
* sh2 drc, small improvements and bug fixes for code emitters
* sh2 drc, improved memory management
* sh2 drc: RISC-V (RV64IM) code emitter, some work on MIPS64
* sh2 drc: RISC-V (RV64IM) code emitter, some work on MIPS64
* sh2 drc: optimizations for MIPS code emitting
* sh2 drc: moved host register assignment to code emitters, minor bugfixing
* 32x, finetuning
* fix gp2x regression
* sh2 drc: reorganised block mgmt code, plus some small scale optimisations
* sh2 drc: bugfix in block management
* sh2 drc: bugfix in block management
* sh2 drc bugfix for aarch64/mips
* 32x, improved auto frame skip, plus new config option for max auto skip
* 32x, configurable pwm irq optimization to reduce pwm irq load
* 32x, speed improvement
* sh2 drc: speed optimization and bugfixing
* sh2 drc: fix i386 regression
* sh2 drc: bug fixing and optimization in register cache and branch handling
* sh2 drc: drc exit, block linking and branch handling revised (overlooked commit)
* sh2 drc: drc exit, block linking and branch handling revised
* sh2 drc: improved RTS call stack cache
* sh2 drc: rework of register cache to implement basic loop optmization
* various smallish optimizations, cleanups, and bug fixes
* cleanup and microoptimizations in SH2 hw handling
* some drawing code C optimisations
* bug fix in comm poll fifo, and back to -O3
* pff... README, 2nd try
* configuration changes and README
* cleanup config files, copyright stuff
* fix for mkoffsets without multiarch binutils
* various small fixes and optimsations
* sh2 drc: add aarch64 backend for A64
* sh2 drc: add mipsel backend for MIPS32 Release 1 (for JZ47xx)
* SH2 drc: register cache overhaul (bugfixing, speed, readability)
* SH2 drc: bug fixing and small speed improvements
* 32X: memory access and polling bug fixes
* sh2 drc, x86 code emitter: use x86-64 registers R8-R15
* 32x DMA memory copy performance optimisation
* sh2 drc, change utils abi to pass sh2 PC in arg0 (reduces compiled code size)
* sh2 drc, keep T bit in host flags as long as possible
* add xSR/RTS call stack cache to sh2 drc
* polling detection: communication poll fifo to avoid comm data loss
* sh2 memory access improvements, revive ARM asm memory functions
* sh2 drc, register cache optimisations
* sh2 drc, block management bugfixes and cleanup
* sh2 drc, add detection for in-memory polling
* sh2 drc, add loop detector, handle delay/idle loops
* sh2 drc, code emitter cleanup, add ARM reorder stage to reduce interlock
* sh2 drc, make B/W read functions signed (reduces generated code size)
* sh2 drc, improved constant handling and register allocator
* speed improvement and fixes for 32x ARM asm draw
* add literal pool to sh2 drc (for armv[456] without MOVT/W)
* sh2 drc, reuse blocks if already previously compiled (speedup for Virtua
*)
* various small improvements and fixes
* overhaul of translation cache and sh2 literals handling
* added branch cache to sh2 drc to improve cross-tcache jump speed
* sh2 memory interface optimzations
* overhaul of the register cache (improves generated code by some 10+%)
* debug stuff, bug fixing
* move saving SH2 SR into memory access and do so only if needed
* add 32bit memory access functions for SH2
* sh2 drc: sh2 addr modes generalization, more const propagation, code gen optimizations
* DRC: reworked scan_block (fix register usage masks, better block and literals detection)
* minor changes
* reworked palette and buffer handling due to some 32X bugs
* revamped 32X draw arm asm code
* kludges for wwf raw, nfl
* substituted tool to obtain target structure offsets (for asm)
* improved sh2 clock handling, bug fixing + small improvement to drc emitters
* sh2 drc host disassembler integration for gp2x
* bugfix for 32x
* bfd-less arm disassembler for gph
* config for x86 (32 bit only, for SH2 drc), add/revive profiling
* arm asm memory access functions for m/s68k
* config templates for gp2x, caanoo, dingux either with system toolchain (open2x,gph,opendingux) or ubuntu arm(gcc 4.7 is highest possible),mips
* arm asm syntax fixes for open2x
* make gp2x mp3 playback functional (need to unpack and compile helix decoder separately in platform/common/helix)
* fix gp2x compilation (using linaro arm gcc 4.7 on ubuntu)
* release 1.93
* libretro: Allow setting GIT_VERSION.
* Makefile: Build with optimizations if DEBUG=0
* Remove not longer files in Picodrive for PS2
* Change GSKit PS2 version
* Update picodrive
* Define HAVE_NO_LANGEXTRA
* Adapt to newlib
* Add option to change sound quality
* Copy tile-based fast renderer buffer
* Add option to change renderer
* Mon Feb 10 2020 Guo Yunhe - Initial version