Downloads

Changes

This version is backwards compatible with save states from SameBoy 0.14.3 and newer, as well as save states from any BESS compliant emulator

New/Improved Features

  • A new, fully-featured iOS frontend:
    • Supports every iPhone, iPad and iPod Touch model running iOS 11 or newer (iOS 13 or newer is recommended)
    • Can be installed by side-loading (using AltStore or TrollStore) or using a jailbreak
    • Innovative and customizable touch controls, including support for analog rewind, fast-forward and slow motion
    • Save states
    • Scaling filters
    • In-game rumble support
    • Game Boy Camera support
    • Motion controls for supported games
    • Notifications for alarm-clock-enabled games
    • Advanced emulation settings
    • A lot more!
  • Reopening a ROM from Finder or other means now reloads the ROM in the Cocoa frontend
  • The SDL frontend received a small facelift
  • Cheats support in the SDL frontend
  • The SDL frontend can now pick a specific revision from CLI
  • A new reset command in the debugger, supporting 3 types of resets
  • Several new changes that improved performance:
    • Disabled inlining of several slow-path functions
    • Enabled the compiler’s fast-math flag
    • Prevention of loop unrolling for large, non-speed-critical loops, to improve utilization of instruction caches
    • Optimize the GUI code for size rather than speed to improve utilization of instruction caches
    • Work around Clang and GCC generating slow code for inline compile-time constants
  • Support for ranged breakpoints and watchpoints
  • Breakpoints and watchpoints are now identified by a unique ID rather than an address, deletion is now done by ID
  • The IO_ prefix for hardware registers in the debugger has been removed in favor of the more standard r prefix
  • The Cocoa memory viewer’s “Go to” field can now switch banks and address spaces
  • The Cocoa memory viewer now symbolicates its selection in the status bar
  • The debugger now supports backwards single stepping, if rewinding is enabled (experimental)
  • Sending SIGUSR1 to the SDL frontend now triggers a reset command
  • Improved controller assignment in the Cocoa frontend, especially when playing multiplayer SGB games or when emulating the link cable
  • Menu and keyboard shortcuts to scale windows up and down to the next integer factor in the Cocoa frontend
  • The Windows builds are now 64-bit, greatly improving performance on Windows

Accuracy Improvements/Fixes

  • Emulation of open bus behavior when reading disabled cartridge RAM
  • More accurate emulation of volume envelope locking on the pre-Color models, as well as CGB revisions older than D
  • Improved Printer timings, allowing the mini game in Hello Kitty Pocket Camera to be played
  • First-party Nintendo games will now have correct initial register values when using the built-in CGB and AGB boot ROMs
  • Improved accuracy of JOYP switching delay
  • Fixed a timing issue when aborting an object fetch using an LCDC write
  • Improvements to object fetching address calculation timings
  • Accurate emulation of PPU registers write conflicts in CGB double speed mode
  • Correct emulation of reading SVBK, fixes Flyeyes (unlicensed game)
  • Wired Switch Controllers now get automatic button mappings in the Cocoa frontend
  • Fixed a bug where GBS files were starting with a wrong value in the IE register, fixes several GBS files
  • Emulation of the OAM corruption glitch triggered by the jr instruction, as well as halt and stop modes
  • Correct read emulation of the BANK register while still in the boot ROM
  • Fixed a bug where accurate RTC emulation halted while SameBoy wasn’t running
  • Accurate emulation of many sweep-related glitches, including revision differences
  • Fixed a bug where HDMA5 was not correctly updated when disabling HBlank HDMA
  • Correct, revision-accurate emulation of reading from VRAM in the last cycle of Mode 3
  • Channel 3 is now correctly mixed when emulating a GBA

Bug Fixes

  • The “Step” icon in the Cocoa debugger was broken on non-Retina displays
  • Fixed a bug where certain temperature tint settings would tint too much
  • Banked breakpoints no longer trigger while executing the boot ROM
  • Fixed camera emulation using the wrong aspect ratio on some Macs
  • Fixed a bug that caused artifacts on the right and bottom edges of the Game Boy Camera
  • Fixed a bug that allowed rewinding across ROM switches in the SDL frontend
  • Fixed a bug that made rewinding try to rewind across model changes
  • Fixed a bug that made save states created on Windows incompatible with other operating systems, and vice versa
  • Several settings in both the SDL and Cocoa frontends had some unexpected defaults, which have been adjusted
  • GameShark cheats were not imported correctly
  • Fixed imported cheats not appearing in the Cocoa frontend
  • Fixed the built-in MGB boot ROM being unexpectedly larger than it should be
  • Prevented cases where the Cocoa debug console would remain open after closing a ROM
  • Fixed a bug that caused the Libretro core to crash in link mode
  • Fixed support for Xbox Wireless Controllers in the Cocoa frontend
  • Some constants in the LCD and CRT filters were not updated when the shaders switched to linear RGB
  • Fixed a bug where jump-to breakpoints disassembled the wrong address under certain scenarios
  • Fixed an edge case where jump-to breakpoints did not work as expected, or took a slow code path
  • Fixes a bug where certain macOS versions would fail to restore the previously opened windows due to a regression in Apple’s code
  • Fixed a bug that caused the VRAM viewer’s toolbar to not appear on macOS Sonoma
  • Fixed a bug where controllers did not always automatically connect or reconnect in the SDL frontend

Misc Internal Changes

  • New APIs to explicitly reset the rewind buffer
  • When building SameBoy in debug mode, assertions will now make sure functions are always called from a safe thread context
  • Fixed an issue that caused the Cocoa preferences window to not open when building on some Macs
  • Certain false positive warnings when building with GCC 9 are now avoided
  • SameBoy can now be built as a library, allowing to disable certain features as required
  • New APU APIs to allow detailed querying of its state
  • SameBoy now correctly refers to its license as the Expat License
  • Fixed an issue that prevented SameBoy to be built if the repository’s path included a space