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Lior Halphon 0ffb936885 The Cocoa port now allows selecting a folder containing boot ROM files 2018-06-21 00:48:02 +03:00
BootROMs More accurate CGB initial register values. Closes #80 2018-06-19 23:59:16 +03:00
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HexFiend Fixed several memory leaks (mostly in Cocoa port debugging utils) 2017-09-27 22:09:26 +03:00
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QuickLook Replaced the is_cgb bool with a more future compatible model enum. Removed the GB_init_cgb API and replaced it with an extended GB_init and GB_switch_model_and_reset APIs that now receive a model parameter. Increased the struct version. 2018-06-16 13:59:33 +03:00
SDL Replaced the is_cgb bool with a more future compatible model enum. Removed the GB_init_cgb API and replaced it with an extended GB_init and GB_switch_model_and_reset APIs that now receive a model parameter. Increased the struct version. 2018-06-16 13:59:33 +03:00
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Tester Replaced the is_cgb bool with a more future compatible model enum. Removed the GB_init_cgb API and replaced it with an extended GB_init and GB_switch_model_and_reset APIs that now receive a model parameter. Increased the struct version. 2018-06-16 13:59:33 +03:00
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libretro libretro: allow changing model at runtime again, also do not reset both gameboys on model change in dual mode 2018-06-16 11:06:00 -05:00
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README.md Update README.md 2017-12-29 13:32:12 +02:00

README.md

SameBoy

SameBoy is an open source Gameboy (DMG) and Gameboy Color (CGB) emulator, written in portable C. It has a native Cocoa frontend for OS X, an experimental SDL frontend for other operating systems, and a libretro core. It also includes a text-based debugger with an expression evaluator. Visit the website.

Features

Features common to both Cocoa and SDL versions:

  • Supports Gameboy (DMG) and Gameboy Color (CGB) emulation
  • Lets you choose the model you want to emulate regardless of ROM
  • High quality 96KHz audio
  • Battery save support
  • Save states
  • Includes open source DMG and CGB boot ROMs:
    • Complete support for (and documentation of) all game-specific palettes in the CGB boot ROM, for accurate emulation of Gameboy games on a Gameboy Color
    • Supports manual palette selection with key combinations, with 4 additional new palettes (A + B + direction)
    • Supports palette selection in a CGB game, forcing it to run in 'paletted' DMG mode, if ROM allows doing so.
    • Support for games with a non-Nintendo logo in the header
    • No long animation in the DMG boot
  • Advanced text-based debugger with an expression evaluator, disassembler, conditional breakpoints, conditional watchpoints, backtracing and other features
  • Emulates PCM_12 and PCM_34 registers
  • Emulates LCD timing effects, supporting the Demotronic trick, GBVideoPlayer and other tech demos
  • Extermely high accuracy
  • Real time clock emulation
  • Retina/High DPI display support, allowing a wider range of scaling factors without artifacts
  • Optional frame blending (Requires OpenGL 3.2 or later)
  • Several scaling algorithms (Including exclusive algorithms like OmniScale and Anti-aliased Scale2x; Requires OpenGL 3.2 or later)

Features currently supported only with the Cocoa version:

  • Native Cocoa interface, with support for all system-wide features, such as drag-and-drop and smart titlebars
  • GameBoy Camera support

Read more.

Compatibility

SameBoy passes many of blargg's test ROMs, as well as 77 out of 78 of mooneye-gb's tests (Some tests require the original boot ROMs). SameBoy should work with most games and demos, please report any broken ROM. The latest results for SameBoy's automatic tester are available here.

Compilation

SameBoy requires the following tools and libraries to build:

  • clang
  • make
  • Cocoa port: OS X SDK and Xcode command line tools
  • SDL port: SDL2.framework (OS X) or libsdl2 (Other platforms)
  • rgbds, for boot ROM compilation

On Windows, SameBoy also requires:

  • Visual Studio (For headers, etc.)
  • GnuWin
  • Running vcvars32 before running make. Make sure all required tools and libraries are in %PATH% and %lib%, repsectively.

To compile, simply run make. The targets are cocoa (Default for OS X), sdl (Default for everything else), libretro, bootroms and tester. You may also specify CONF=debug (default), CONF=release or CONF=native_release to control optimization and symbols. native_release is faster than release, but is optimized to the host's CPU and therefore is not portable. You may set BOOTROMS_DIR=... to a directory containing precompiled dmg_boot.bin and cgb_boot.bin files, otherwise the build system will compile and use SameBoy's own boot ROMs.

SameBoy was compiled and tested on macOS, Ubuntu and 32-bit Windows 7.