DeSmuME vs DSperate

DeSmuME is a free emulator that attempts to reproduce the Nintendo DS and Nintendo DS Lite handheld consoles. It runs on Windows, Linux, and macOS, and supports the D-pad, buttons, and touch screen, along with a Lid control for changing the emulated system's folded state. Graphics options include a software SoftRasterizer and an OpenGL-based renderer. Audio samples can use linear or cosine interpolation, or no interpolation; microphone input can come from hardware audio or software-generated samples. The Windows port can capture screenshots, AVI video, and WAV audio, as well as record TAS gameplay movies. Users can save and load game states, though the Windows manual warns that states may break between emulator versions. Cheat search and editing are available, and Action Replay codes are supported in post-0.9.2 development builds. Wi-Fi support is experimental and unsupported, and the project discourages end users from using it. The software is distributed under the GNU General Public License. DSi emulation is not supported.

DSperate is a free, public-source Nintendo DS and DSi emulator for Linux on AArch64 and ARMhf. Its CPU emulation includes ARM946E-S and ARM7TDMI interpreters, plus ARM-to-AArch64 and ARM-to-ARMv7 recompilers. Graphics include complete 2D engines, a software 3D rasteriser and optional Vulkan GPU rendering. Experimental DSi support covers DSiWare, NAND boot, an SD card folder, microphone, Wi-Fi, PictoChat and Download Play, but the DSi DSP is not emulated and DSi-enhanced cartridges run as DS games in DSi mode. Local multiplayer and Download Play work over a LAN; internet access uses a user-mode TCP/IP stack. It has ten save-state slots and a hidden automatic slot, configurable screen layouts, cheats, and remappable keyboard and controller input with stylus support. Games can run with built-in FreeBIOS and generated firmware; user dumps allow firmware boot and exact timing. It loads .nds files and .zip files containing an .nds, but not zip64, 7z or rar. The project is licensed under GPLv3 and describes its implementation as clean-room work.