Azahar vs Bochs

Azahar is a free, open-source emulator for Nintendo 3DS games, with standalone applications for Windows, macOS, Linux and Android. It is intended to let 3DS owners use their game libraries with options such as higher resolutions, modern controllers and save states. The project also serves homebrew debugging, research and preservation of the 3DS ecosystem. Community contributors continue work associated with Citra. Libretro cores allow use with RetroArch and similar frontends, including on iOS and tvOS, but Azahar’s FAQ says native iOS support is not planned for the foreseeable future and points users to an iOS build of the original Citra instead. Android requires version 10.0 or later on a 64-bit device. A per-game compatibility tracker provides reports, though the FAQ warns that these may be outdated. The mobile app privacy policy says registration is not required and the app does not collect information. Azahar states that it is not affiliated with or endorsed by Nintendo.

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.