EmuNations

--0.14.2--

New/Improved Features

• FreeDesktop installations now register and associate .ISX files

Accuracy Improvements/Fixes

• Fixed an audio regression where some games would play audio one octave lower when emulating a DMG

Bug Fixes

• Fixed a bug where certain Cocoa windows would incorrectly remain open after closing a ROM

--0.14.1--

New/Improved Features

• Improvements to installation and packaging support on Linux, BSD and other FreeDesktop environments

Accuracy Improvements/Fixes

• Fixed a sweep regression when emulating DMG, SGB or CGB-C

Bug Fixes

• Fixed various potential crashes when using symbol files

• Fixed a bug where certain symbols would never be used with an offset

--0.14--

New/Improved Features

• Emulation of the unreleased Workboy accessory in the Cocoa port

• Emulation of Game Link Cable and infrared cross-game communication in the Cocoa port

• Multiplayer support in the Libretro core now includes infrared support

• The debugger now supports the undo command, which will revert the most recent state-modifying command

• The automatic tester can now optionally output TGA files instead of BMP files

• The debugger will now issue a warning when a ROM triggers PPU odd-mode

• Improved support to non-QWERTY, Latin keyboard layouts in the SDL port

• Simulation of an ambient light’s effect on the non-backlit screens of the Game Boy, with user-controlled ambient light color temperature

• Improved menu scrolling in the SDL frontend

• Improved mouse support in the SDL frontend, with mouse wheel scrolling and a visual scrollbar

• The SDL port can now select a boot ROMs folder

• The escape button now returns to the previous menu in the SDL port instead of closing it completely

• Improved noise when emulating the Game Boy Camera on frontends without webcam support

• The SDL port will exit cleanly and report an error if it fails to initialize

• The automatic tester can now optionally create battery save files

• Support of two Real Time Clock emulation modes:Sync to system clock (Not affected by turbo, slow motion, pausing, etc.)
  Accurate (Affected by the mentioned above)
  

• The automation uses the new accurate RTC mode for stable results across runs

• Refinements to the icon

• Linux, BSD and other FreeDesktop users can now install SameBoy as both a command line utility and a GUI app by running make install

Accuracy Improvements/Fixes

• Emulation of a scenario where an interrupt might trigger OAM corruption

• Emulation of CGB-mode TILE_SEL mixing

• Correct emulation of wave RAM reads when emulating a Game Boy Advance

• Accuracy improvements to infrared

• Accuracy improvements to the window

• Major APU improvements, with correct emulation of countless edge cases and newly discovered quirks:Complete rewrite of Channel 1’s sweep envelope
  Complete rewrite of Channel 4’s noise generation, especially mid-pulse writes to NR43
  Complete rewrite of the volume envelopes, including “Zombie Mode” and related quirks
  

• The state of the NRx1 registers are now correctly preserved when emulating models prior to Game Boy Color

• Emulation of a quirk where writes to NR44 might be delayed on models prior to Game Boy Color

• Improved and more accurate color correction

• Fixed a regression and improved the accuracy of speed switching, fixed a bug where odd-mode avoidance did not work correctly

• Improved timing of the STOP instruction

• Optional emulation of audio interference from the Game Boy SoC, with a user-controlled slider representing interference level

• Emulation of an APU quirk where triggering Channels 1 and 2 might advance the duty cycle in certain cases in CGB-E (and CGB-D, currently unsupported)

• Correct emulation of the differences between revisions when it comes to writes to NRx2 (“Zombie Mode”)

• Accuracy improvements to RTC emulation

• Minor improvements to MBC3 emulation

• Prevent the printer from deadlocking if it was terminated during the transmission of a byte

Bug Fixes

• Fixed a rare potential crash when loading symbol files

• Fixed a bug where the Cocoa port would display wrong, dark, colors when disabling frame blending

• Fixed a bug where the SDL and libretro ports would not update the game’s border when switching games and emulating a model other than the SGB

• Fixed cases where the audio thread would deadlock the Cocoa frontend

• Fixed a bug where changing the rewind length in the SDL port didn’t take effect until restarting

--0.13.6--

New/Improved Features

• Prevent SameBoy from asking for notification permissions until that feature is needed by an HuC-3 game

• Improved user interface on macOS Big Sur

• The SDL frontend now has the ability change the default window size

Bug Fixes

• Fixed a bug that caused the Quick Look previews to include a border on macOS Big Sur

• Fixed a bug where the RTC might drift when loading older saves or states, or when pausing SameBoy for a long time

--0.13.5--

Bug Fixes

Fixed major regression introduced in 0.13.4 that prevented saving progress in games and caused several other issues

--0.13.4--

New/Improved Features

• Native support for ARM-based Macs (Experimental)

• Improved the loading time of battery saves with an RTC time set to the far past

Bug Fixes

• Fixed a spelling mistake in the debugger

• Fix several major regressions affecting games that use a real time clock

--0.13.3--

New/Improved Features

• The scaling filters were updated to use gamma-corrected color mixing, improving the quality of all shaders, especially the LCD and CRT shaders.

Bug Fixes

• Fixed a regression in the CGB and AGB boot ROMs where wrong palettes were chosen for Nintendo DMG games.

--0.13.2--

New/Improved Features

• The Cocoa debugger now has tab completion

• Conflicting key mappings are now highlighted in red in the Cocoa button configuration dialog

• Improved Dark Mode appearance in the Cocoa port

• Better, more system native appearance for the Cocoa memory viewer

• Improved Printer Feed window in the Cocoa port, now with an option to print with an actual printer

Bug Fixes

• Fixed a bug in the Libretro frontend that prevented certain achievements from triggering

• Fixed a bug where the save state format effectively used by the Windows build was not following the intended format

• The non-Windows builds can now read pre-0.13.2 Windows save states and vice versa

• Fixed a minor compatibility issue between save states created on 32-bit machines and ones created on 64-bit machines

• Fixed a potential crash when loading certain save states while a printer is connected in the Cocoa port

--0.13.1--

Bug Fixes

• Fixed a potential memory corruption when loading certain malformed ROMs

• Improved stability when loading corrupt preference files in the SDL port

--0.13--

New/Improved Features

• When emulating a Game Boy, you can now select out of 4 different palettes

• New Monochrome LCD scaling filter

• It is now possible to display Super Game Boy, or a built-in default border, even when emulating different models

• Improvements to the built-in boot ROMs; the DMG boot ROM has a new animation, and the CGB boot ROM now features an anti-aliased logo

• Gamma correction added to the CRT scaling filter

• Add “Reduce Contrast” as an additional color correction mode

• Optional more accurate frame blending mode, emulating the scanline-like appearance of actual Game Boy displays

• The next debugger command now skips over HALT

• The registers debugger command now display IME as well

• Added volume control to the SDL frontend

• The SDL frontend will now load and save “prefs.bin” relative to the binary if such file exists

• The sidebar in the Cocoa debugger is now resizable and collapsable

• The Cocoa frontend now supports cheats

• Added support to ISX files, used by the official toolchain

• Rewritten and improved controller support in Cocoa, featuring rumble, player LEDs, and analog controls for turbo and slow motion. Controller support:
  GameCube adapters (Both official and PC adapters): Full support, including automatic mappings, multiplayer, analog controls, and rumbleUnofficial adapters in PC mode support analog rumble, as opposed to PWM binary rumble; the use of PC mode is recommended
  Generic “Twin USB” DualShock 2 PC adapter: Automatic mapping, multiplayer support
  Switch Pro Controller: Full support, including automatic mappings, rumble, and player LEDs; via both USB and Bluetooth
  
  DualShock 3: Full support, including automatic mappings, rumble, player LEDs, and analog controls; via both USB and BluetoothSome Macs seem to be unable to communicate LED and rumble information to DualShock 3 controllers; the use of USB for this controller is recommended
  Generic controllers: Basic functionality, may need to be manually remapped in settings
  Support for more controllers will come in future releases
  

• Optionally add rumble support to all games, even those without a Rumble Pak, in all frontendsSDL rumble support varies between operating systems and SDL versions

• The debugger now allows more than one symbol at the same address

• Added the softbreak debugger command to enable/disable software breakpoints (ld b, b)

• The SDL debugger now always outputs “>” when it’s waiting for an input

• The SDL debugger allows the use of the magic binary sequence "\x03\x0a" to break the debugger from stdin in async-capable platforms

Accuracy Improvements/Fixes

• Fixed a regression bug that made the first frame blank instead of repeated on the Game Boy Color

• Fixed an APU sequencer edge case

• Fixed a bug affecting HDMA timing

• Color correction is now more accurate

• Correct emulation of the OPRI register

• More accurate emulation of STOP mode

• More accurate emulation of LCDC write conflicts; although individual units may behave differently

• Emulation of cases where PPU object fetched are aborted in the middle

• Correct emulation of changing object height during fetch

• More accurate emulation of the PPU fetcher’s timings

• Accurate emulation of SCX’s upper 5 bits changing mid-line

• Rewritten window implementation, which is much more accurate now, including the various timing scenarios

• More accurate emulation of background FIFO push timings

• Emulate some of the cases where the PPU and LCD desync

• Accurate emulation of tilemap advance timings

• Implement a missing SGB command (ATTR_CHR)

• More accurate MBC2 emulation

• More accurate MBC3 emulation and proper MBC30 support

• Correct emulation of PCM12 and PCM34 reads when emulating CGB-C

• Improved HuC-1 emulation

• HuC-3 emulation, including RTC and alarm clock emulationAlarm clock emulation is only supported in the Cocoa frontend
  

• Partial emulation of glitched VRAM reads that happen right after mode 3

Bug Fixes

• Fixed a bug with scrolling menus in the SDL frontend when emulating a Super Game Boy

• Fixed cases where the Cocoa frontend froze

• Fixed a bug where an incorrect minimum window size was enforced on the Cocoa frontend

• Assignments to 16-bit expression in the debugger is now working correctly

• Fixed operator priorities in the debugger

• Fixed a debugger parsing bug

• Fixed compatibility with older macOS versions in the Cocoa version, restoring support for 10.9 (Mavericks) and newer

Misc Internal Changes

• Added per-commit automatic GitHub builds, with basic sanity tests

• When building the SDL frontend on macOS, the Brew version of SDL2 is used

• Fixed various compilation errors with GCC

• Make the libretro frontend compile without warnings

• HuC-1 and HuC-3 IR are emulated now, but this is not currently supported in any frontend

--0.12.3--

This version is backwards compatible with save states from SameBoy 0.11.x and newer.

New/Improved Features

• Super Game Boy color correction is now available in the libretro port

• It is now possible to hide the Super Game Boy border in the libretro port

• The SDL port will now hide the mouse while a ROM is running

Accuracy Improvements/Fixes

• Changing the frequency of channels 1 and 2 is now more accurate

• Audio rendering should now be accurate when emulating Game Boy Advance

Bug Fixes

• Fixed garbled graphics while emulting Super Game Boy in the SDL port when OpenGL 3.2 is not available

• The Cocoa build is now linked against the correct SDK version, restoring compatbility with older macOS versions that was mistakenly dropped in the previous release

• Fixed fullscreen related issues in the SDL port

• Fixed a bug where the SDL port did not save the battery in some cases

• Bug fixes to libretro achievement support

• Restored Game Boy Camera support on newer macOS versions

• Fixed High-DPI support on Windows 10

Misc Internal Changes

• Improvements to the audio and ICD2 APIs

• Allow compiling SameBoy for platforms with a non-standard bool size

• Improved build portability, will now use pkg-config if available

--0.12.2--

This version is backwards compatible with save states from SameBoy 0.11.x and newer.

New/Improved Features

• The Quick Look previewer now produces color-corrected thumbnails

• The debugger now supports a wider range of symbol files

Accuracy Improvements/Fixes

• Fixed a bug where samples in the wave channel were treated as if they’re 0, effectively muting the channel in some cases.

• Fixed a regression that caused some PPU test ROMs to fail

• More accurate emulation of memory access conflicts on the Super Game Boy

• When emulating a Super Game Boy, built-in palettes for select games are now emulated

• Accuracy improvements to Super Game Boy’s multiplayer mode

• Super Game Boy and Game Boy Advance now have their own color correction filters

Bug Fixes

• Improvements to audio in the SDL port, affecting some machines

• Fixed a bug where the SDL port loaded the wrong boot ROM when emulating Super Game Boy 2

• Fixed broken audio on libretro when used with some RetroArch audio drivers

• Fixed a potential crash when closing a window in the Cocoa port

• Fixed libretro achievements

• Fixed major performence issues in the Cocoa port that affected some Macs, especially when emulating the original Super Game Boy

Misc Internal Changes

• The emulation core now supports emulating a Super Game Boy without high level emulation of the SNES or SFC. SameBoy is now used for Game Boy emulation by bsnes, allowing extremely accurate low-level emulation of Super Game Boy.

• Made it possible to compile the SDL port with older SDL versions

• Compression improvements to the CGB and AGB boot ROMs

--0.12.1--

This version is a minor bug-fixing version that only affects the SDL version. The macOS version is identical, except for the version number.

Bug Fixes

• Fixed the CGB and AGB boot ROMs being corrupt on the Windows version

• Improved audio quality on the SDL ports on systems using a large audio buffer

--0.12--

This version is backwards compatible with save states from SameBoy 0.11.x.

New/Improved Features

• An experimental support for emulating CGB-CPU C is now available in the Cocoa port. This is still experimental and does not accurately represent all differences between CGB-CPU E and CGB-CPU C yet

• The Libretro port no longer restarts the core after changes to the high-pass filter or color correction

• The SDL port can now start in fullscreen mode via a command line argument

• High level emulation of Super Game Boy:Supports game colorization
  Supports borders, including correct emulation of the fade animations and borders that obscure parts of the Game Boy display window
  Up to 4-player multiplayer (Currently only in the Cocoa and Libretro ports)
  Can choose between Super Game Boy (NTSC), Super Game Boy (PAL) and Super Game Boy 2, with correct CPU speed emulation
  All models include open source boot ROMs, just like previously supported models
  Includes a default border for games without SGB support
  Includes a boot animation
  Accurate emulation of cases where the internal frame buffer loses sync with the SNES/SFC side
  

• New CRT display filter

• New preference panel in the Cocoa port

• Minor visual improvements to the icon

• Many performance all around the core

• The debugger now includes jump-to breakpoints

• New APU debugger commands

• The SDL port now has mouse support

• The SDL port now has an “Open ROM” dialog window, in addition to the previously available drag and drop support

• The Cocoa and SDL ports now have better support for sub-frame input accuracy

• The VRAM display window in the Cocoa port can now display SCX and SCY on the tilemap

• Redesigned audio API that should improve audio quality in all ports

Accuracy Improvements/Fixes

• WRAM, VRAM, and other types of memory are now realistically initialized to random values. The randomization patterns vary across emulated models and revisions. This fixes several games that rely on non-zero values on boot

• Slightly more accurate emulation of the undocumented $FF4C register, which controls DMG mode on CGBs

• Fixed an APU regression where the noise channel’s volume envelope ran too fast

• More accurate emulation of analog APU characteristics

• Fixed a CGB boot ROM bug that made some games boot with incorrect palettes

• Fixed incorrect emulation of echo RAM

• Fixed a very rare edge case when an interrupt occurs while the stack points to $FF11

• Correct emulation of the time required to switch the CPU speed

• Correct emulation of CGB palette accessibility in different PPU timings, fixes Lego Racers

• Other accuracy improvements to OAM and VRAM accessibility

• The serial registers now behave realistically by working with bits instead of bytes

• More accurate initial RAM and VRAM values when using the built in CGB boot ROM

• Accurate emulation of AGB audio mixing, which is different from older models

• Fixed the behavior of the wave channel’s first sample playback, fixes buzzing sounds on LSDJ and several games

• Most aspects of STOP mode are now accurately emulated

• Fixed a bug where initial register values were incorrect when selecting a palette for a DMG game in the built in CGB boot ROM

• Fixed incorrect emulation of the Background and Window enable bit in LCDC

Bug Fixes

• Fixed a bug where the SDL port would not recognize joypads if started directly to a ROM

• Fixed a bug where the Quick Look previewer would show glitched thumbnails for DMG games

• Fixed a regression that made the Cocoa port unable to display anything on Macs not supporting Metal

• Fixed a bug where modifying RTC data could corrupt MBC RAM data

• Fixed a bug where CGB save states were significantly larger than they should have been, older save states are converted

• Fixed several bugs in expression parsing in the debugger

• Work around a bug where some Windows 10 machines using Intel HD Graphics had unresponsive UI in the SDL port

• Fixed a bug where the D-Pad did not work on several gamepads in the Cocoa port

• Fixed a bug where the gamepad D-Pad had unexpected behaviors in the menus of the SDL port

• Fixed a bug where underclocking slowed down the core to ~40% of its speed instead of an exact 50%

Misc Internal Changes

• Rename all Z80 instances to SM83, which is most likely the name of the CPU core used in the Game Boy

• Size optimization in the CGB boot ROM

--0.11.2--

New/Improved Features

• Each debug console in Cocoa now displays the ROM file name in its titlebar

• SameBoy can now load RTC information from battery saves from different emulators including BGB, VisualBoyAdvance, and VisualBoyAdvance-M and vice versa. Older battery saves will automatically be converted

Accuracy Improvements/Fixes

• More accurate emulation of DAC charging and discharging. Fixes the buzzing sound heard in several games

• Fixed a bug where the left and right audio channel were swapped

• More accurate GDMA and HDMA timings

• Fixed several bugs, one of which is a regression, where channels 1 and 2 could play without a delay. Fixes missing audio in Gensan 2

• Correct emulation of enabling and disabling the volume envelope

• Correct emulation of a glitch where the volume envelope ticks when it usually wouldn’t

• Compensate for CPU prefetch in DIV’s initial value

• Correct emulation of turning the DACs on and off. Fixes missing audio in several games

Bug Fixes

• Fixed bugs in the debugger UI in Cocoa that made it unresponsive

• Fixed a bug where the libretro core didn’t save and load the RTC properly

--0.11.1--

New/Improved Features

• Introduced adaptive audio buffer length mechanism to improve audio quality systems that force big audio buffers

Accuracy Improvements/Fixes

• Fixed a major regression where DMG games failed to switch to DMG mode when using SameBoy’s CGB boot ROM

Bug Fixes

• Fixed the titlebar color in the Cocoa frontend

• Fixed a bug where some macOS machines running High Sierra showed graphical garbage during fullscreen mode

--0.11--

This version is not compatible with save states of older versions.

New/Improved Features

• The Cocoa and SDL ports can now rewind the game using a configurable key

• The libretro port can now be compiled for Haiku and Wii U

• The libretro port now has split-screen link cable emulation

• The Cocoa and SDL ports can now under-clock the emulator for a “slow motion” effect

• A new LCD screen filter for both the Cocoa and SDL ports

• The new PPU and timing system introduced an up to 100% performance boost (More details in “Accuracy Improvements/Fixes”)

• A new debugger operator – {...} can now be used to dereference a pointer to a 16-bit value

• Fullscreen support in the SDL port

• Improved audio in the Windows SDL port, on supported versions of Windows

• The delete and unwatch debugger commands are now less strict

• Added joystick hat support to the SDL port

• The Cocoa port now uses Metal on supported Macs for better performance on laptops and less capable desktops

• The Cocoa port now allows specifying a boot ROMs folder, so it can be used with the original boot ROMs

• Improved the Cocoa debugger, it is now more responsive and no longer truncates output

• The lcd debugger command now shows more accurate details about what the PPU is currently doing

• The SDL port now has proper joypad configuration, similar to the Cocoa port

• The SDL port now has more consistent joypad menu navigation, in comparison to keyboard navigation

• Improved analog stick controls in both ports

Accuracy Improvements/Fixes

• This version introduced major accuracy improvements, making SameBoy able to pass:All of mooneye-gb’s acceptance tests
  All of Wilbert Pol’s tests
  All of Blargg’s tests

• Improved emulation of analog characteristics of the APU for more accurate sound

• Emulation of an open-bus-like quirk behavior in GDMA and HDMA

• A whole new T-cycle accurate PPU:Accurate interrupt timing and blocking
  Sprite timings are now accurate
  Pixel pushing timing is now accurate, for pixel-perfect emulation of Prehistorik Man
  Has accurate memory and register access timings

• Accurate emulation of several timing edge cases related to the halt instruction

• Accurate emulation of a DMA bus quirk on the DMG

• Complete and accurate emulation of the OAM bug, including cases not tested by Blagg’s tests

• Fixed a regression in dmg_sound-2

• Several accuracy fixes in SameBoy’s built-in boot ROMs

• DMA now blocks PPU OAM access

• Correct emulation of wiring both sets of buttons in JOYP

• Fixed a bug where HDMA and GDMA were 4 times faster than they should have been

• I/O register access conflicts are now emulated, including behavior differences between models

• Improved accuracy of the halt bug

• Correct emulation of the DMG STAT-write bug, which is just a specific case of I/O register access conflict

• Emulated an APU glitch where in some edge cases a DIV-triggered APU event is skipped

Bug Fixes

• Minor text adjustments in both the Cocoa and SDL ports

• Fixed the Android build of the libretro port

• The call instruction is now properly symbolicated

• Fixed an issue that caused the Cocoa port to play a beep sound when certain buttons were pressed

• Fixed several graphical issues with some of the filters

• Worked around an SDL bug introduced in the macOS port of SDL

• Fixed a bug where SameBoy froze after leaving turbo mode

• Fixed a bug where the Windows port could not handle Unicode paths

• Fixed a bug where the debugger wrote to the wrong CGB RAM bank

• Fixed a bug where debugging symbols were not properly reloaded

• Fixed save states in the SDL port

• Fixed a bug where battery saves were not always saved in the SDL port

• Fixed a bug where the SWAP instruction was incorrectly disassembled as RLC

• Fixed a bug where the Cocoa memory viewer would play a beep sound and show a warning after resetting the emulator

Misc Internal Changes

• API refinements

• Minor improvements to the Windows build system

• Documented several differences between DMG revisions and CGB revisions, and between DMG and MGB. SameBoy now explicitly targets DMG-CPU-B and CGB-CPU-E, and hopefully more revisions in the future

• The official Windows binaries now use SDL 2.0.8

--0.10.1--

New/Improved Features

• The libretro port can now be compiled for the Switch

• Made the menu key more obvious in the SDL port

• Can now emulate a Game Boy Advance in Game Boy Color mode

• Changing a model in the SDL port is now done via the menu

• Major improvements to the way the libretro port handles audio, significantly improving audio quality

• It is now possible to select a specific model to emulate in the libretro port

Accuracy Improvements/Fixes

• APU stereo volume levels are now scaled emulated correctly (Volume levels are 1-8, not 0-7)

• Triggering a pulse by writing to NRx4 now correctly changes the volume level of the previously played pulse. Fixes sound pops in Link’s Awekening.

• The CGB boot now finishes with correct register values

• Fixed APU DIV events sometimes causing audio pops in disabled channels. Fixes sound pops in Super Mario Land 2

• Fixed a bug where the effects of NR50 and NR51 were unintentionally delayed. Fixes sound pops in Pokémon Puzzle Challenge and Donkey Kong ‘94.

Bug Fixes

• Fixed video issues with the libretro port when using Vulkan

• Using a Joypad in the Cocoa port did not prevent the screen saver from starting

--0.10--

This version is not compatible with save states of older versions.

New/Improved Features

• The CGB boot ROM will now wait until the user finishes choosing a palette

• New SDL GUI:More user friendly, settings are now more accessible
  Added configurable controls
  Added scaling filters (requires OpenGL 3.2 support)
  Added frame blending (requires OpenGL 3.2 support)

• Added joypad support to both the Cocoa and SDL ports

Accuracy Improvements/Fixes

• More accurate PPU timings

• The first frame after turning the LCD on is now skipped, as in hardware (Fixed Pokémon Pinball visual glitch)

• Accurate emulation of VRAM and OAM blocking

• More accurate emulation of MBC1

• Improved serial cable timing emulation

• Complete rewrite of the APU emulation (Fixed audio on several games)APU emulation is now sample-accurate in almost all case
  Audio is now rendered at 2MHz (like real hardware), downsampled to 96KHz (or 44.1 on Windows)
  Passes all of Blagg’s APU tests, as well as most of SameBoy’s (yet-to-be-released) APU tests
  Added 3 modes of high-pass filtering (Disabled, Emulate Hardware, and Preserve Waveforms)
  

• Fixed KEY1 being writable on a CGB in DMG mode

• Refined window behavior (Fixed visual glitches in Pokémon G/S/C)

• SCY latching is now correctly emulated

• Refined SCX’s effects on PPU timings

• Correctly emulate differences in interrupt timing when the CPU is in halt mode

• More accurate emulation of interrupt servicing. (Fixed Pinball Deluxe)

• Fixed OAM interrupt timing (Fixed Pinball Deluxe when emulating a DMG)

• Added 4 modes of color correction (Disabled, Correct Curves, Emulate Hardware and Preserve Brightness)

• Fixed EI behavior

Bug Fixes

• Fixed backtrace command in the debugger (first item did not appear correctly)

• Fixed a bug that prevented saving games after resetting the emulator

• Fixed several memory leaks

• Fixed a bug that caused black screens after loading a save state when emulating a DMG

• Fixed potential crashes when viewing OAMs in the VRAM viewer

Misc Internal Changes

• API improvements

• It is now possible to specify a boot ROM for the automatic tester

• The Libretro core is now merged into the main branch

--0.9.1--

This version is a minor bug-fixing version

Bug Fixes

• Fixed a bug where SameBoy froze for various amounts of time after using turbo mode.

--0.9--

This version is not compatible with save states of older versions.

New/Improved Features

• A symbol file for IO-registers is now included

• The Cocoa GUI now handles errors and warnings in a more user friendly manner

• The debugger now includes an lcd command, that outputs information about the LCD controller and related registers

• Improved audio quality, especially on Windows, by adding supersampling support

• Upgraded the SDL port from SDL 1.2 to SDL 2.0

• The following features were added to the SDL port:OpenGL renderer
  Reset and pause shortcuts
  Ability to mute and unmute the audio
  Ability to switch model between CGB and DMG without restarting SameBoy
  Ability to open ROMs with drag and drop
  Resizing, with 3 different mode (Entire window, keep aspect, and integer ratio)
  Help dialog, accessible by the Shift+? shortcut (macOS) or F1 (Other platforms)
  

• Improved input in the Cocoa debugger; supports command history (up/down) and reverse search (^R)

Accuracy Improvements/Fixes

• Much more accurate emulation of HDMA

• The effect of the DI opcode is no longer delayed

• SameBoy’s CGB boot ROM no longer incorrectly changes the RAM bank

• Fixed a bug where HUC1 banks higher than 0x1F were not mapped correctly

• Fixed a bug where MBC5 would map the wrong bank if address 3XXX is written before 2XXX is

• The STOP instruction is now treated as a 2-byte opcode

• LCD timing was rewritten and is now much more accurate

• Corrected behavior of the HUC1 RAM enable switch

• Large ROMs use MBC3 if the header claims no MBC should be use, for better compatibility with unofficial ROMs

• Fixed a bug in the implementation of the STAT write bug

• The value of SCX now affects the LCD’s mode 3 length

• More accurate FPS capping that tracks time correctly even when the LCD is off

• Window behavior rewritten and and is now much more accurate; fixes Donkey Kong ‘94

• Fixed a bug where sound is generate on the wave channel while it shouldn’t be

• The following games now pass the automatic testing: Alfred’s Adventure, Animorphs, Armada - FX Racers, Asterix - Search for Dogmatix, Bad Badtz-Maru Robo Battle, Barbie - Pet Rescue, Bear in the Big Blue House, Blue’s Clues - Blue’s Alphabet Book, Boarder Zone, Bob et Bobette - Les Dompteurs du Temps, Caesars Palace II, Captain Knick-Knack (Sachen), Daikaijuu Monogatari - The Miracle of the Zone II, Disney’s Tarzan, Doug’s Big Game, Dragon Tales - Dragon Wings, The Emperor’s New Groove, Fort Boyard, Honkaku Yonin Uchi Mahjong - Mahjong Ou, Hoyle Casino, Kinniku Banzuke GB3 - Shinseiki Survival Retsuden!, Konami GB Collection Vol.2, Konami GB Collection Vol.4, LEGO Racers, Lemmings & Oh No! More Lemmings, Les Aventures De TinTin - Le Temple du Soleil, Matchbox - Emergency Patrol, Microsoft Entertainment Pack, Pia Carrot he Youkoso!! 2.2, Pocket Music (E), Pokemon Card GB (J), Puchi Carat, San Francisco Rush 2049, Scrabble, The Simpsons - Night of the Living Treehouse of Horror, Star Wars Episode I - Obi-Wan’s Adventures, Supreme Snowboarding, Tintin in Tibet, Toki Tori, Tomb Raider - Curse of the Sword, Turok 3 - Shadow of Oblivion, VS Lemmings, World Destruction League - Thunder Tanks, Yu-Gi-Oh! Duel Monsters 4 - Saikyou Kettousha Senki

Bug Fixes

• The SBC instruction was incorrectly printed as “LBC” in the debugger

• The LDH instruction was not symbolicated

• Fixed a bug with saving and loading save states and battery states on Windows

• Fixed a bug where saving or loading save states sometimes worked incorrectly in the SDL port

• Fixed a bug where the VRAM window would now show correctly if the game is paused

• Fixed a bug where ^C in the Cocoa port would not move the focus to the console

Misc Internal Changes

• Major refinements to the API

--0.8--

This version is not compatible with save states of older versions. This version ignores key bindings set by older versions

New/Improved Features

• The debugger now includes a ticks command, to allow tick counting

• The debugger now includes a palettes command, to allow dumping the palettes in CGB mode

• General optimizations

• Complete Game Boy Camera support in the Cocoa port, basic support in the SDL port

• Debugger syntax improved, commands now allow modifiersprint/eval can now have a format modifier (e.g. print/d)
  examine can now have a byte count modifier (e.g. x/4)

• The debugger now includes a disassemble command

• Added a VRAM viewer to the Cocoa port

• Game Boy Printer emulation in the Cocoa port

• New icon for GBC files, following Nintendo’s color-coding convention, fixed icon alignment for both GB and GBC icons

• Quick Look support in Cocoa: GB and GBC files now display in-game screenshots on their cartridge icon

Accuracy Improvements/Fixes

• The APU emulation was refactored, and is now faster and now longer dependent on the sampling rate

• LCDC’s bit 0 is now properly emulated (Fixes: Krusty’s Fun House)

• The HALT bug is now emulated

• The user is now prevented from pressing opposite keys at the same time (Fixes Pocket Bomberman)

• Fixed MBC2 RAM emulation

• Corrected emulation of the palette registers in CGB mode

• HUC1 is now partially emulated, sans the IR sensor

• Basic HUC3 support, only the MBC is emulated

• Implemented the STAT-write interrupt bug (Fixed: Road Rash and Zero no Densetsu; these games do not work on CGBs)

• Limited the LY=144 interrupt to DMG mode, as hinted by MooneyeGB’s test ROMs

• The following games now pass the automatic testing: All-Star Baseball ‘99, Cave Noire, Daisenryaku, F-1 Race, Game Boy Camera, Hatris, Ironman, Konami Golf, Kwirk, Meitantei Conan, Nintendo World Cup, Pocket Bomberman (J), Puzzle Boy, SS Spinner, The Smurfs, Speedball 2, Tecmo Bowl, Teenage Mutant Ninja Turtles 2, Tsuri Sensei, Ultima, Ultra Golf, WordZap, Z - The Miracle of the Zone, Zerd no Densetsu

Bug Fixes

• Fixed a deadlock in the Hex Editor/Viewer when viewing APU data

• Fixed a crash when accessing MBC RAM on some ROMs that do not have MBC RAM

• Multiple watchpoints did not function correctly

• Improved the behavior and performance of the open dialog in Cocoa

• Fixed dereferencing a non-banked address in the debugger

• VRAM was not initialized

• Fixed an edge case where the Hex Editor/Viewer crashed

• Breakpoint and watchpoint conditions no longer trigger other watchpoints; fixed potential crashes

• Better handling of input in the Cocoa port when the system has a non-ASCII keyboard layout

• Minor fixes for the help debugger command

Misc Internal Changes

• Added rumble API, but it is not actually used by any of the GUIs

• Added serial API, but it is currently only used internally for the Game Boy Printer

--0.7--

New/Improved Features

• The debugger now includes a backtrace command to show the stacktrace

• Cocoa port now includes a Hex Editor/Viewer

• The debugger help command was improved

• General improvements to debugger usability

• The SDL port now compiles on Windows (Binaries included)

• Mouse hiding in Cocoa is now only enabled during full screen

• The Cocoa port now remembers the mute setting

• SameBoy now issues a warning when loading a game that uses an unsupported cartridge

• Cocoa port now remembers previous breakpoints/watchpoints after reset

• Cocoa port now automatically shows the open if needed

Accuracy Improvements/Fixes

• OBP0/1 are now initialized to the correct value (Fixes Mooneye’s DMG hardware registers test).

• A disconnected serial cable is now emulated. Fixes:Baseball
  Faceball 2000
  Fighting Simulator
  Godzilla
  Hiryuu Gaiden
  In Your Face
  Lunar Lander
  Pinball Party
  Sneaky Snakes
  Super R.C. Pro-Am
  WWF Stars
  Yoshi’s Egg
  

• Correctly emulating unused OAM RAM in DMG mode

• DMG boot ROM now finishes with the original register values (Fixes Mooneye’s DMG boot registers test)

• RTC clock latching is now emulated.

• Fixed APU issues where simultaneously running games could affect each other

• Fixed APU issue that could break some games. Fixes:Chiki Chiki Tengoku
  Moguranya/Mole Mania

• Fixed MBC RAM not being properly reset. Old save data must be deleted for this fix to apply. Fixes:Purikura Pocket 3
  Probably affects many other games
  

Bug Fixes

• Boot ROMs were not trimmed correctly

• Fixes several bugs that caused the Cocoa port to freeze when using the reset command during debugging

Misc Internal Changes

• SameBoy can now be compiled with precompiled (non-SameBoy) boot ROMs

• SameBoy includes an automated game ROM tester

--0.6--

New/Improved Features

• Conditional r/w/rw debugger watchpoints

• Added the “!=” operator to the debugger

• Redefined the debugger input and output syntax, being more consistent with RGBDS

• Debugger now reads .sym files (Tested with 3 popular formats). It shows symbols when possible, and allows using them in expressions

• Debugger data types can now be either 16-bit values, or 25-bit full addresses that include a bank identifier

• Debugger commands and expressions support full addresses as parameters. This allows, for example, breaking on an address on a specific ROM bank, or reading a value from a specific MBC RAM bank.

• Some debugger commands may now run without breaking the debugger. (Similar to LLDB or GDB’s async mode)

• SDL port now supports save states

• Improved performance by about 6% by enabling link-time optimizations

• Reduced file size by stripping executables

• Several Cocoa-only UX improvements:Prevented being paused “twice” (Both by the pause option and the debugger)
  Optional proportional resizing
  Proper fullscreen support
  Mouse cursor is now hidden while running
  

Accuracy Improvements/Fixes

This version includes major accuracy improvements, which allow it to pass 54 tests out of mooneye-gb’s 58 acceptance tests (2 of which fail due to not including the original boot ROM); more than any other emulator.

• Rewritten MBC support, with MBC1M support (Fixing some N-in-1 cartridges)

• Major accuracy improvements to OAM DMA.

• Corrected a lot of instruction memory-access timings

• Corrected some IO register masks

• Major accuracy improvements to timers (TIMA/DIV)

Bug Fixes

• Corrected operator priorities in the debugger

• Fixed a bug where a breakpoint might have been ignored

• Reduced CPU usage when running games with a real time clock

• Handling ^C and ^D more sanely in SDL port

• Fixed memory leak in Cocoa

Misc Internal Changes

• Added infrared API, but it is not actually used by any of the GUIs

• Fixed build system bugs that caused needless dep file generation, and made the Cocoa build fail sometimes if SDL is not installed

--0.5--

This version is not compatible with save states of older versions.

New/Improved Features

• Updated save state format, should now be much more future compatible

• Save state compatibility between 32 and 64 bit versions of SameBoy

• Cocoa version is now using OpenGL 3

• HQ2x filter added (Cocoa only)

• A new, redesigned OmniScale filter; old filter is renamed to OmniScale Legacy (Cocoa only)

• Cocoa port now “remembers” the last window size

• Added boolean operators to the debugger

• Added conditional breakpoints

Accuracy Improvements/Fixes

• Better emulation of certain behaviors of the SCX register

• Fixed emulation of the STOP instruction

• Minor fix to the accuracy of the JOYPAD register

• Minor improvements to HDMA accuracy

Bug Fixes

• Improved concurrency in the Cocoa port

• Fixed a bug where an emulator window in the Cocoa port will freeze until resized

• Fixed incorrect disassembler outputs

• Fixed a potential crash when deleting a breakpoint

Misc Internal Changes

• Large code refactoring, getting ready to stabilize API

--0.4--

This version is not compatible with save states of older versions.

New/Improved Features

• Cocoa port now includes several scaling algorithms, including a beta of the exclusive OmniScale algorithm

• SDL port now includes sound support

• SDL port now includes battery save support

Accuracy Improvements/Fixes

• APU emulation now includes stereo support

• Improved PCM registers emulation

• More accurate STAT interrupt emulation. This fixes Altered Space.

Bug Fixes

• The Cocoa port ignored some key presses if the user keyboard layout included non-ASCII characters

• Fixed a bug that could cause a crash when adding or removing a breakpoint

--0.3--

New/Improved Features

• New debugger command: cartridge (alias: mbc) shows information about the cartridge and the current status of the MBC

• Experimental debugger command: sld (Short for Stack Leak Detection) behaves similarly to finish, but stops if a stack leak or stack overflow is detected

• The Cocoa port now allows configuring controls

Accuracy Improvements/Fixes

• ROM banks now wrap (Fixes game: Pocket Monster Adventures (Bootleg))

• Fixed incorrect DMA behavior, DMA might fail for specific source addresses (Fixes game: The Smurfs 3)

• Timer registers were counting too slow in CGB double speed mode

• Corrected read behavior of the HDMA5 register (Fixes game: A Bug’s Life in CGB mode)

• Fixed a bug with the CGB boot ROM that prevented initialization of the wave RAM

• The CGB boot ROM now loads the DMG tilemap for specific games, just like the original ROM (Fixes game: X (intro animation))

• Fixed a bug where audio channel 3 was playing silently while it should have been muted.

Bug Fixes

• Debugger’s finish command now behaves correctly when interrupts are involved

• Corrected the description for the breakpoint command

• SameBoy will not create save files for ROMs without cartridge RAM or RTC, even if they report having a battery, preventing 0-bytes save files

--0.12.3--

This version is backwards compatible with save states from SameBoy 0.11.x and newer.

New/Improved Features

• Super Game Boy color correction is now available in the libretro port

• It is now possible to hide the Super Game Boy border in the libretro port

• The SDL port will now hide the mouse while a ROM is running

Accuracy Improvements/Fixes

• Changing the frequency of channels 1 and 2 is now more accurate

• Audio rendering should now be accurate when emulating Game Boy Advance

Bug Fixes

• Fixed garbled graphics while emulting Super Game Boy in the SDL port when OpenGL 3.2 is not available

• The Cocoa build is now linked against the correct SDK version, restoring compatbility with older macOS versions that was mistakenly dropped in the previous release

• Fixed fullscreen related issues in the SDL port

• Fixed a bug where the SDL port did not save the battery in some cases

• Bug fixes to libretro achievement support

• Restored Game Boy Camera support on newer macOS versions

• Fixed High-DPI support on Windows 10

Misc Internal Changes

• Improvements to the audio and ICD2 APIs

• Allow compiling SameBoy for platforms with a non-standard bool size

• Improved build portability, will now use pkg-config if available

--0.12.2--

This version is backwards compatible with save states from SameBoy 0.11.x and newer.

New/Improved Features

• The Quick Look previewer now produces color-corrected thumbnails

• The debugger now supports a wider range of symbol files

Accuracy Improvements/Fixes

• Fixed a bug where samples in the wave channel were treated as if they’re 0, effectively muting the channel in some cases.

• Fixed a regression that caused some PPU test ROMs to fail

• More accurate emulation of memory access conflicts on the Super Game Boy

• When emulating a Super Game Boy, built-in palettes for select games are now emulated

• Accuracy improvements to Super Game Boy’s multiplayer mode

• Super Game Boy and Game Boy Advance now have their own color correction filters

Bug Fixes

• Improvements to audio in the SDL port, affecting some machines

• Fixed a bug where the SDL port loaded the wrong boot ROM when emulating Super Game Boy 2

• Fixed broken audio on libretro when used with some RetroArch audio drivers

• Fixed a potential crash when closing a window in the Cocoa port

• Fixed libretro achievements

• Fixed major performence issues in the Cocoa port that affected some Macs, especially when emulating the original Super Game Boy

Misc Internal Changes

• The emulation core now supports emulating a Super Game Boy without high level emulation of the SNES or SFC. SameBoy is now used for Game Boy emulation by bsnes, allowing extremely accurate low-level emulation of Super Game Boy.

• Made it possible to compile the SDL port with older SDL versions

• Compression improvements to the CGB and AGB boot ROMs

--0.12.1--

This version is a minor bug-fixing version that only affects the SDL version. The macOS version is identical, except for the version number.

Bug Fixes

• Fixed the CGB and AGB boot ROMs being corrupt on the Windows version

• Improved audio quality on the SDL ports on systems using a large audio buffer

--0.12--

This version is backwards compatible with save states from SameBoy 0.11.x.

New/Improved Features

• An experimental support for emulating CGB-CPU C is now available in the Cocoa port. This is still experimental and does not accurately represent all differences between CGB-CPU E and CGB-CPU C yet

• The Libretro port no longer restarts the core after changes to the high-pass filter or color correction

• The SDL port can now start in fullscreen mode via a command line argument

• High level emulation of Super Game Boy:Supports game colorization
  Supports borders, including correct emulation of the fade animations and borders that obscure parts of the Game Boy display window
  Up to 4-player multiplayer (Currently only in the Cocoa and Libretro ports)
  Can choose between Super Game Boy (NTSC), Super Game Boy (PAL) and Super Game Boy 2, with correct CPU speed emulation
  All models include open source boot ROMs, just like previously supported models
  Includes a default border for games without SGB support
  Includes a boot animation
  Accurate emulation of cases where the internal frame buffer loses sync with the SNES/SFC side
  

• New CRT display filter

• New preference panel in the Cocoa port

• Minor visual improvements to the icon

• Many performance all around the core

• The debugger now includes jump-to breakpoints

• New APU debugger commands

• The SDL port now has mouse support

• The SDL port now has an “Open ROM” dialog window, in addition to the previously available drag and drop support

• The Cocoa and SDL ports now have better support for sub-frame input accuracy

• The VRAM display window in the Cocoa port can now display SCX and SCY on the tilemap

• Redesigned audio API that should improve audio quality in all ports

Accuracy Improvements/Fixes

• WRAM, VRAM, and other types of memory are now realistically initialized to random values. The randomization patterns vary across emulated models and revisions. This fixes several games that rely on non-zero values on boot

• Slightly more accurate emulation of the undocumented $FF4C register, which controls DMG mode on CGBs

• Fixed an APU regression where the noise channel’s volume envelope ran too fast

• More accurate emulation of analog APU characteristics

• Fixed a CGB boot ROM bug that made some games boot with incorrect palettes

• Fixed incorrect emulation of echo RAM

• Fixed a very rare edge case when an interrupt occurs while the stack points to $FF11

• Correct emulation of the time required to switch the CPU speed

• Correct emulation of CGB palette accessibility in different PPU timings, fixes Lego Racers

• Other accuracy improvements to OAM and VRAM accessibility

• The serial registers now behave realistically by working with bits instead of bytes

• More accurate initial RAM and VRAM values when using the built in CGB boot ROM

• Accurate emulation of AGB audio mixing, which is different from older models

• Fixed the behavior of the wave channel’s first sample playback, fixes buzzing sounds on LSDJ and several games

• Most aspects of STOP mode are now accurately emulated

• Fixed a bug where initial register values were incorrect when selecting a palette for a DMG game in the built in CGB boot ROM

• Fixed incorrect emulation of the Background and Window enable bit in LCDC

Bug Fixes

• Fixed a bug where the SDL port would not recognize joypads if started directly to a ROM

• Fixed a bug where the Quick Look previewer would show glitched thumbnails for DMG games

• Fixed a regression that made the Cocoa port unable to display anything on Macs not supporting Metal

• Fixed a bug where modifying RTC data could corrupt MBC RAM data

• Fixed a bug where CGB save states were significantly larger than they should have been, older save states are converted

• Fixed several bugs in expression parsing in the debugger

• Work around a bug where some Windows 10 machines using Intel HD Graphics had unresponsive UI in the SDL port

• Fixed a bug where the D-Pad did not work on several gamepads in the Cocoa port

• Fixed a bug where the gamepad D-Pad had unexpected behaviors in the menus of the SDL port

• Fixed a bug where underclocking slowed down the core to ~40% of its speed instead of an exact 50%

Misc Internal Changes

• Rename all Z80 instances to SM83, which is most likely the name of the CPU core used in the Game Boy

• Size optimization in the CGB boot ROM

--0.11.2--

New/Improved Features

• Each debug console in Cocoa now displays the ROM file name in its titlebar

• SameBoy can now load RTC information from battery saves from different emulators including BGB, VisualBoyAdvance, and VisualBoyAdvance-M and vice versa. Older battery saves will automatically be converted

Accuracy Improvements/Fixes

• More accurate emulation of DAC charging and discharging. Fixes the buzzing sound heard in several games

• Fixed a bug where the left and right audio channel were swapped

• More accurate GDMA and HDMA timings

• Fixed several bugs, one of which is a regression, where channels 1 and 2 could play without a delay. Fixes missing audio in Gensan 2

• Correct emulation of enabling and disabling the volume envelope

• Correct emulation of a glitch where the volume envelope ticks when it usually wouldn’t

• Compensate for CPU prefetch in DIV’s initial value

• Correct emulation of turning the DACs on and off. Fixes missing audio in several games

Bug Fixes

• Fixed bugs in the debugger UI in Cocoa that made it unresponsive

• Fixed a bug where the libretro core didn’t save and load the RTC properly

--0.11.1--

New/Improved Features

• Introduced adaptive audio buffer length mechanism to improve audio quality systems that force big audio buffers

Accuracy Improvements/Fixes

• Fixed a major regression where DMG games failed to switch to DMG mode when using SameBoy’s CGB boot ROM

Bug Fixes

• Fixed the titlebar color in the Cocoa frontend

• Fixed a bug where some macOS machines running High Sierra showed graphical garbage during fullscreen mode

--0.11--

This version is not compatible with save states of older versions.

New/Improved Features

• The Cocoa and SDL ports can now rewind the game using a configurable key

• The libretro port can now be compiled for Haiku and Wii U

• The libretro port now has split-screen link cable emulation

• The Cocoa and SDL ports can now under-clock the emulator for a “slow motion” effect

• A new LCD screen filter for both the Cocoa and SDL ports

• The new PPU and timing system introduced an up to 100% performance boost (More details in “Accuracy Improvements/Fixes”)

• A new debugger operator – {...} can now be used to dereference a pointer to a 16-bit value

• Fullscreen support in the SDL port

• Improved audio in the Windows SDL port, on supported versions of Windows

• The delete and unwatch debugger commands are now less strict

• Added joystick hat support to the SDL port

• The Cocoa port now uses Metal on supported Macs for better performance on laptops and less capable desktops

• The Cocoa port now allows specifying a boot ROMs folder, so it can be used with the original boot ROMs

• Improved the Cocoa debugger, it is now more responsive and no longer truncates output

• The lcd debugger command now shows more accurate details about what the PPU is currently doing

• The SDL port now has proper joypad configuration, similar to the Cocoa port

• The SDL port now has more consistent joypad menu navigation, in comparison to keyboard navigation

• Improved analog stick controls in both ports

Accuracy Improvements/Fixes

• This version introduced major accuracy improvements, making SameBoy able to pass:All of mooneye-gb’s acceptance tests
  All of Wilbert Pol’s tests
  All of Blargg’s tests
  

• Improved emulation of analog characteristics of the APU for more accurate sound

• Emulation of an open-bus-like quirk behavior in GDMA and HDMA

• A whole new T-cycle accurate PPU:Accurate interrupt timing and blocking
  Sprite timings are now accurate
  Pixel pushing timing is now accurate, for pixel-perfect emulation of Prehistorik Man
  Has accurate memory and register access timings

• Accurate emulation of several timing edge cases related to the halt instruction

• Accurate emulation of a DMA bus quirk on the DMG

• Complete and accurate emulation of the OAM bug, including cases not tested by Blagg’s tests

• Fixed a regression in dmg_sound-2

• Several accuracy fixes in SameBoy’s built-in boot ROMs

• DMA now blocks PPU OAM access

• Correct emulation of wiring both sets of buttons in JOYP

• Fixed a bug where HDMA and GDMA were 4 times faster than they should have been

• I/O register access conflicts are now emulated, including behavior differences between models

• Improved accuracy of the halt bug

• Correct emulation of the DMG STAT-write bug, which is just a specific case of I/O register access conflict

• Emulated an APU glitch where in some edge cases a DIV-triggered APU event is skipped

Bug Fixes

• Minor text adjustments in both the Cocoa and SDL ports

• Fixed the Android build of the libretro port

• The call instruction is now properly symbolicated

• Fixed an issue that caused the Cocoa port to play a beep sound when certain buttons were pressed

• Fixed several graphical issues with some of the filters

• Worked around an SDL bug introduced in the macOS port of SDL

• Fixed a bug where SameBoy froze after leaving turbo mode

• Fixed a bug where the Windows port could not handle Unicode paths

• Fixed a bug where the debugger wrote to the wrong CGB RAM bank

• Fixed a bug where debugging symbols were not properly reloaded

• Fixed save states in the SDL port

• Fixed a bug where battery saves were not always saved in the SDL port

• Fixed a bug where the SWAP instruction was incorrectly disassembled as RLC

• Fixed a bug where the Cocoa memory viewer would play a beep sound and show a warning after resetting the emulator

Misc Internal Changes

• API refinements

• Minor improvements to the Windows build system

• Documented several differences between DMG revisions and CGB revisions, and between DMG and MGB. SameBoy now explicitly targets DMG-CPU-B and CGB-CPU-E, and hopefully more revisions in the future

• The official Windows binaries now use SDL 2.0.8

--0.10.1--

New/Improved Features

• The libretro port can now be compiled for the Switch

• Made the menu key more obvious in the SDL port

• Can now emulate a Game Boy Advance in Game Boy Color mode

• Changing a model in the SDL port is now done via the menu

• Major improvements to the way the libretro port handles audio, significantly improving audio quality

• It is now possible to select a specific model to emulate in the libretro port

Accuracy Improvements/Fixes

• APU stereo volume levels are now scaled emulated correctly (Volume levels are 1-8, not 0-7)

• Triggering a pulse by writing to NRx4 now correctly changes the volume level of the previously played pulse. Fixes sound pops in Link’s Awekening.

• The CGB boot now finishes with correct register values

• Fixed APU DIV events sometimes causing audio pops in disabled channels. Fixes sound pops in Super Mario Land 2

• Fixed a bug where the effects of NR50 and NR51 were unintentionally delayed. Fixes sound pops in Pokémon Puzzle Challenge and Donkey Kong ‘94.

Bug Fixes

• Fixed video issues with the libretro port when using Vulkan

• Using a Joypad in the Cocoa port did not prevent the screen saver from starting

--0.10--

This version is not compatible with save states of older versions.

New/Improved Features

• The CGB boot ROM will now wait until the user finishes choosing a palette

• New SDL GUI:More user friendly, settings are now more accessible
  Added configurable controls
  Added scaling filters (requires OpenGL 3.2 support)
  Added frame blending (requires OpenGL 3.2 support)

• Added joypad support to both the Cocoa and SDL ports

Accuracy Improvements/Fixes

• More accurate PPU timings

• The first frame after turning the LCD on is now skipped, as in hardware (Fixed Pokémon Pinball visual glitch)

• Accurate emulation of VRAM and OAM blocking

• More accurate emulation of MBC1

• Improved serial cable timing emulation

• Complete rewrite of the APU emulation (Fixed audio on several games)APU emulation is now sample-accurate in almost all case
  Audio is now rendered at 2MHz (like real hardware), downsampled to 96KHz (or 44.1 on Windows)
  Passes all of Blagg’s APU tests, as well as most of SameBoy’s (yet-to-be-released) APU tests
  Added 3 modes of high-pass filtering (Disabled, Emulate Hardware, and Preserve Waveforms)

• Fixed KEY1 being writable on a CGB in DMG mode

• Refined window behavior (Fixed visual glitches in Pokémon G/S/C)

• SCY latching is now correctly emulated

• Refined SCX’s effects on PPU timings

• Correctly emulate differences in interrupt timing when the CPU is in halt mode

• More accurate emulation of interrupt servicing. (Fixed Pinball Deluxe)

• Fixed OAM interrupt timing (Fixed Pinball Deluxe when emulating a DMG)

• Added 4 modes of color correction (Disabled, Correct Curves, Emulate Hardware and Preserve Brightness)

• Fixed EI behavior

Bug Fixes

• Fixed backtrace command in the debugger (first item did not appear correctly)

• Fixed a bug that prevented saving games after resetting the emulator

• Fixed several memory leaks

• Fixed a bug that caused black screens after loading a save state when emulating a DMG

• Fixed potential crashes when viewing OAMs in the VRAM viewer

Misc Internal Changes

• API improvements

• It is now possible to specify a boot ROM for the automatic tester

• The Libretro core is now merged into the main branch

--0.9.1--

This version is a minor bug-fixing version

Bug Fixes

• Fixed a bug where SameBoy froze for various amounts of time after using turbo mode.

--0.9--

This version is not compatible with save states of older versions.

New/Improved Features

• A symbol file for IO-registers is now included

• The Cocoa GUI now handles errors and warnings in a more user friendly manner

• The debugger now includes an lcd command, that outputs information about the LCD controller and related registers

• Improved audio quality, especially on Windows, by adding supersampling support

• Upgraded the SDL port from SDL 1.2 to SDL 2.0

• The following features were added to the SDL port:OpenGL renderer
  Reset and pause shortcuts
  Ability to mute and unmute the audio
  Ability to switch model between CGB and DMG without restarting SameBoy
  Ability to open ROMs with drag and drop
  Resizing, with 3 different mode (Entire window, keep aspect, and integer ratio)
  Help dialog, accessible by the Shift+? shortcut (macOS) or F1 (Other platforms)

• Improved input in the Cocoa debugger; supports command history (up/down) and reverse search (^R)

Accuracy Improvements/Fixes

• Much more accurate emulation of HDMA

• The effect of the DI opcode is no longer delayed

• SameBoy’s CGB boot ROM no longer incorrectly changes the RAM bank

• Fixed a bug where HUC1 banks higher than 0x1F were not mapped correctly

• Fixed a bug where MBC5 would map the wrong bank if address 3XXX is written before 2XXX is

• The STOP instruction is now treated as a 2-byte opcode

• LCD timing was rewritten and is now much more accurate

• Corrected behavior of the HUC1 RAM enable switch

• Large ROMs use MBC3 if the header claims no MBC should be use, for better compatibility with unofficial ROMs

• Fixed a bug in the implementation of the STAT write bug

• The value of SCX now affects the LCD’s mode 3 length

• More accurate FPS capping that tracks time correctly even when the LCD is off

• Window behavior rewritten and and is now much more accurate; fixes Donkey Kong ‘94

• Fixed a bug where sound is generate on the wave channel while it shouldn’t be

The following games now pass the automatic testing:

Alfred’s Adventure, Animorphs, Armada - FX Racers, Asterix - Search for Dogmatix, Bad Badtz-Maru Robo Battle, Barbie - Pet Rescue, Bear in the Big Blue House, Blue’s Clues - Blue’s Alphabet Book, Boarder Zone, Bob et Bobette - Les Dompteurs du Temps, Caesars Palace II, Captain Knick-Knack (Sachen), Daikaijuu Monogatari - The Miracle of the Zone II, Disney’s Tarzan, Doug’s Big Game, Dragon Tales - Dragon Wings, The Emperor’s New Groove, Fort Boyard, Honkaku Yonin Uchi Mahjong - Mahjong Ou, Hoyle Casino, Kinniku Banzuke GB3 - Shinseiki Survival Retsuden!, Konami GB Collection Vol.2, Konami GB Collection Vol.4, LEGO Racers, Lemmings & Oh No! More Lemmings, Les Aventures De TinTin - Le Temple du Soleil, Matchbox - Emergency Patrol, Microsoft Entertainment Pack, Pia Carrot he Youkoso!! 2.2, Pocket Music (E), Pokemon Card GB (J), Puchi Carat, San Francisco Rush 2049, Scrabble, The Simpsons - Night of the Living Treehouse of Horror, Star Wars Episode I - Obi-Wan’s Adventures, Supreme Snowboarding, Tintin in Tibet, Toki Tori, Tomb Raider - Curse of the Sword, Turok 3 - Shadow of Oblivion, VS Lemmings, World Destruction League - Thunder Tanks, Yu-Gi-Oh! Duel Monsters 4 - Saikyou Kettousha Senki

Bug Fixes

• The SBC instruction was incorrectly printed as “LBC” in the debugger

• The LDH instruction was not symbolicated

• Fixed a bug with saving and loading save states and battery states on Windows

• Fixed a bug where saving or loading save states sometimes worked incorrectly in the SDL port

• Fixed a bug where the VRAM window would now show correctly if the game is paused

• Fixed a bug where ^C in the Cocoa port would not move the focus to the console

Misc Internal Changes

• Major refinements to the API

--0.8--

This version is not compatible with save states of older versions. This version ignores key bindings set by older versions

New/Improved Features

• The debugger now includes a ticks command, to allow tick counting

• The debugger now includes a palettes command, to allow dumping the palettes in CGB mode

• General optimizations

• Complete Game Boy Camera support in the Cocoa port, basic support in the SDL port

• Debugger syntax improved, commands now allow modifiersprint/eval can now have a format modifier (e.g. print/d)
  examine can now have a byte count modifier (e.g. x/4)
  

• The debugger now includes a disassemble command

• Added a VRAM viewer to the Cocoa port

• Game Boy Printer emulation in the Cocoa port

• New icon for GBC files, following Nintendo’s color-coding convention, fixed icon alignment for both GB and GBC icons

• Quick Look support in Cocoa: GB and GBC files now display in-game screenshots on their cartridge icon

Accuracy Improvements/Fixes

• The APU emulation was refactored, and is now faster and now longer dependent on the sampling rate

• LCDC’s bit 0 is now properly emulated (Fixes: Krusty’s Fun House)

• The HALT bug is now emulated

• The user is now prevented from pressing opposite keys at the same time (Fixes Pocket Bomberman)

• Fixed MBC2 RAM emulation

• Corrected emulation of the palette registers in CGB mode

• HUC1 is now partially emulated, sans the IR sensor

• Basic HUC3 support, only the MBC is emulated

• Implemented the STAT-write interrupt bug (Fixed: Road Rash and Zero no Densetsu; these games do not work on CGBs)

• Limited the LY=144 interrupt to DMG mode, as hinted by MooneyeGB’s test ROMs

• The following games now pass the automatic testing: All-Star Baseball ‘99, Cave Noire, Daisenryaku, F-1 Race, Game Boy Camera, Hatris, Ironman, Konami Golf, Kwirk, Meitantei Conan, Nintendo World Cup, Pocket Bomberman (J), Puzzle Boy, SS Spinner, The Smurfs, Speedball 2, Tecmo Bowl, Teenage Mutant Ninja Turtles 2, Tsuri Sensei, Ultima, Ultra Golf, WordZap, Z - The Miracle of the Zone, Zerd no Densetsu

Bug Fixes

• Fixed a deadlock in the Hex Editor/Viewer when viewing APU data

• Fixed a crash when accessing MBC RAM on some ROMs that do not have MBC RAM

• Multiple watchpoints did not function correctly

• Improved the behavior and performance of the open dialog in Cocoa

• Fixed dereferencing a non-banked address in the debugger

• VRAM was not initialized

• Fixed an edge case where the Hex Editor/Viewer crashed

• Breakpoint and watchpoint conditions no longer trigger other watchpoints; fixed potential crashes

• Better handling of input in the Cocoa port when the system has a non-ASCII keyboard layout

• Minor fixes for the help debugger command

Misc Internal Changes

• Added rumble API, but it is not actually used by any of the GUIs

• Added serial API, but it is currently only used internally for the Game Boy Printer

--0.7--

New/Improved Features

• The debugger now includes a backtrace command to show the stacktrace

• Cocoa port now includes a Hex Editor/Viewer

• The debugger help command was improved

• General improvements to debugger usability

• The SDL port now compiles on Windows (Binaries included)

• Mouse hiding in Cocoa is now only enabled during full screen

• The Cocoa port now remembers the mute setting

• SameBoy now issues a warning when loading a game that uses an unsupported cartridge

• Cocoa port now remembers previous breakpoints/watchpoints after reset

• Cocoa port now automatically shows the open if needed

Accuracy Improvements/Fixes

• OBP0/1 are now initialized to the correct value (Fixes Mooneye’s DMG hardware registers test).

• A disconnected serial cable is now emulated. Fixes:Baseball
  Faceball 2000
  Fighting Simulator
  Godzilla
  Hiryuu Gaiden
  In Your Face
  Lunar Lander
  Pinball Party
  Sneaky Snakes
  Super R.C. Pro-Am
  WWF Stars
  Yoshi’s Egg
  

• Correctly emulating unused OAM RAM in DMG mode

• DMG boot ROM now finishes with the original register values (Fixes Mooneye’s DMG boot registers test)

• RTC clock latching is now emulated.

• Fixed APU issues where simultaneously running games could affect each other

• Fixed APU issue that could break some games. Fixes:Chiki Chiki Tengoku
  Moguranya/Mole Mania
  

• Fixed MBC RAM not being properly reset. Old save data must be deleted for this fix to apply. Fixes:Purikura Pocket 3
  Probably affects many other games
  

Bug Fixes

• Boot ROMs were not trimmed correctly

• Fixes several bugs that caused the Cocoa port to freeze when using the reset command during debugging

Misc Internal Changes

• SameBoy can now be compiled with precompiled (non-SameBoy) boot ROMs

• SameBoy includes an automated game ROM tester

--0.6--

New/Improved Features

• Conditional r/w/rw debugger watchpoints

• Added the “!=” operator to the debugger

• Redefined the debugger input and output syntax, being more consistent with RGBDS

• Debugger now reads .sym files (Tested with 3 popular formats). It shows symbols when possible, and allows using them in expressions

• Debugger data types can now be either 16-bit values, or 25-bit full addresses that include a bank identifier

• Debugger commands and expressions support full addresses as parameters. This allows, for example, breaking on an address on a specific ROM bank, or reading a value from a specific MBC RAM bank.

• Some debugger commands may now run without breaking the debugger. (Similar to LLDB or GDB’s async mode)

• SDL port now supports save states

• Improved performance by about 6% by enabling link-time optimizations

• Reduced file size by stripping executables

• Several Cocoa-only UX improvements:Prevented being paused “twice” (Both by the pause option and the debugger)
  Optional proportional resizing
  Proper fullscreen support
  Mouse cursor is now hidden while running
  

Accuracy Improvements/Fixes

This version includes major accuracy improvements, which allow it to pass 54 tests out of mooneye-gb’s 58 acceptance tests (2 of which fail due to not including the original boot ROM); more than any other emulator.

• Rewritten MBC support, with MBC1M support (Fixing some N-in-1 cartridges)

• Major accuracy improvements to OAM DMA.

• Corrected a lot of instruction memory-access timings

• Corrected some IO register masks

• Major accuracy improvements to timers (TIMA/DIV)

Bug Fixes

• Corrected operator priorities in the debugger

• Fixed a bug where a breakpoint might have been ignored

• Reduced CPU usage when running games with a real time clock

• Handling ^C and ^D more sanely in SDL port

• Fixed memory leak in Cocoa

Misc Internal Changes

• Added infrared API, but it is not actually used by any of the GUIs

• Fixed build system bugs that caused needless dep file generation, and made the Cocoa build fail sometimes if SDL is not installed

--0.5--

This version is not compatible with save states of older versions.

New/Improved Features

• Updated save state format, should now be much more future compatible

• Save state compatibility between 32 and 64 bit versions of SameBoy

• Cocoa version is now using OpenGL 3

• HQ2x filter added (Cocoa only)

• A new, redesigned OmniScale filter; old filter is renamed to OmniScale Legacy (Cocoa only)

• Cocoa port now “remembers” the last window size

• Added boolean operators to the debugger

• Added conditional breakpoints

Accuracy Improvements/Fixes

• Better emulation of certain behaviors of the SCX register

• Fixed emulation of the STOP instruction

• Minor fix to the accuracy of the JOYPAD register

• Minor improvements to HDMA accuracy

Bug Fixes

• Improved concurrency in the Cocoa port

• Fixed a bug where an emulator window in the Cocoa port will freeze until resized

• Fixed incorrect disassembler outputs

• Fixed a potential crash when deleting a breakpoint

Misc Internal Changes

• Large code refactoring, getting ready to stabilize API

--0.4--

This version is not compatible with save states of older versions.

New/Improved Features

• Cocoa port now includes several scaling algorithms, including a beta of the exclusive OmniScale algorithm

• SDL port now includes sound support

• SDL port now includes battery save support

Accuracy Improvements/Fixes

• APU emulation now includes stereo support

• Improved PCM registers emulation

• More accurate STAT interrupt emulation. This fixes Altered Space.

Bug Fixes

• The Cocoa port ignored some key presses if the user keyboard layout included non-ASCII characters

• Fixed a bug that could cause a crash when adding or removing a breakpoint

--0.3--

New/Improved Features

• New debugger command: cartridge (alias: mbc) shows information about the cartridge and the current status of the MBC

• Experimental debugger command: sld (Short for Stack Leak Detection) behaves similarly to finish, but stops if a stack leak or stack overflow is detected

• The Cocoa port now allows configuring controls

Accuracy Improvements/Fixes

• ROM banks now wrap (Fixes game: Pocket Monster Adventures (Bootleg))

• Fixed incorrect DMA behavior, DMA might fail for specific source addresses (Fixes game: The Smurfs 3)

• Timer registers were counting too slow in CGB double speed mode

• Corrected read behavior of the HDMA5 register (Fixes game: A Bug’s Life in CGB mode)

• Fixed a bug with the CGB boot ROM that prevented initialization of the wave RAM

• The CGB boot ROM now loads the DMG tilemap for specific games, just like the original ROM (Fixes game: X (intro animation))

• Fixed a bug where audio channel 3 was playing silently while it should have been muted.

Bug Fixes

• Debugger’s finish command now behaves correctly when interrupts are involved

• Corrected the description for the breakpoint command

• SameBoy will not create save files for ROMs without cartridge RAM or RTC, even if they report having a battery, preventing 0-bytes save files

--0.2--

New/Improved Features

• Support for multiple breakpoints

• Better debugger command style and error reporting; includes help command

• In the SDL port, ^C in the terminal will break the debugger instead of quitting SameBoy

• Cocoa port now saves preferences (Model and frame blending)

• It is not possible to toggle console output and debugging in the Cocoa port

Accuracy Improvements/Fixes

• Read/write masks corrected for several registers

• Corrected 144th OAM interrupt behavior

• LCD operation moved to advance_cycles, fixing some obscure timing issues (Fixes game: X / Ekkusu)

• More accurate emulation of the registers controlling DMG emulation on CGB

• Emulation of PCM_12 and PCM_34 in the SDL port

Bug Fixes

• Debugger’s next command can now exit a function

--0.1--

Initial public release0.2

New/Improved Features

• Support for multiple breakpoints

• Better debugger command style and error reporting; includes help command

• In the SDL port, ^C in the terminal will break the debugger instead of quitting SameBoy

• Cocoa port now saves preferences (Model and frame blending)

• It is not possible to toggle console output and debugging in the Cocoa port

Accuracy Improvements/Fixes

• Read/write masks corrected for several registers

• Corrected 144th OAM interrupt behavior

• LCD operation moved to advance_cycles, fixing some obscure timing issues (Fixes game: X / Ekkusu)

• More accurate emulation of the registers controlling DMG emulation on CGB

• Emulation of PCM_12 and PCM_34 in the SDL port

Bug Fixes

• Debugger’s next command can now exit a function

--0.1--

• Initial public release