bsnes-libretro/CHANGES.md

Change Log

Version 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

Version 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

Version 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

Version 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

Version 0.1

• Initial public release