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EmuCR: SameBoy SameBoy v0.11 is released. SameBoy is a user friendly Game Boy and Game Boy Color emulator for macOS. SameBoy is extremely accurate and includes a wide range of powerful debugging features, making it ideal for both casual players and developers. In addition to accuracy and developer capabilities, SameBoy has all the features one would expect from an emulator – from save states to scaling filters. An SDL version is also available to Windows and Unix-like systems.

SameBoy v0.11 Changelog:
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

Download: SameBoy v0.11

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