Bochs vs Snes9x

Bochs is a free, open-source emulator that models IA-32 x86 PC hardware. It can simulate Intel CPU families from 386 through x86-64, common I/O devices, and a custom BIOS, allowing users to run guest systems such as Linux, DOS, Windows, BSD, and other x86 operating systems. Optional command-line and graphical debuggers provide ways to inspect registers and memory or set breakpoints. Graphics support includes VGA, VESA VBE resolutions up to 2560x1600x32bpp, Cirrus Logic video, and four 3dfx Voodoo adapter models. Bochs also emulates USB controllers and devices, and can forward guest network packets to a physical network on several host systems. Multiprocessor simulation can be configured for up to 254 processor threads, but is experimental. The emulator uses a single-threaded simulation core and does not use dynamic code translation or virtualization. It supplies virtual hardware, not a setup wizard or guest installation disk, so users install guest systems themselves. Binary packages and source compilation are options; some features may require compiling it. It is available for Windows, Linux, and macOS, among other documented host systems.

Snes9x is freeware for playing most games made for the Super Nintendo and Super Famicom systems. Desktop builds are listed for Windows, Linux, and macOS, with additional libretro core builds for Android, Emscripten, Wii, Switch, GameCube, and PSP. Running games requires SNES ROM images. Snes9x can save game state to freeze files and game data to SRAM files. Windows documentation describes Game Genie and Pro-Action Replay cheat formats, a cheat search feature, and recording gameplay actions for later playback. Netplay is documented for as many as five players, but the project notes that it has not been maintained or tested in a long time and might be broken. The Unix documentation says the emulator does not reproduce exact sub-cycle timing between major system components, so games with strict timing needs may not run. The project lists the software as free, with a plan price of free. Its listed platforms include Android, Linux, macOS, and Windows.