SameBoy 0.12

Game Boy模擬器 SameBoy 發布新版，更新如下 :

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

https://sameboy.github.io/