DOSBox PSP vs DOSBox Pure

DOSBox PSP is a DOSBox port for running MS-DOS software on the PlayStation Portable. The project describes it as DOSBox adapted with PSP patches, and credits crazyc with the original port. It supports CUE/BIN disk images, gamepads, audio CDs and Neo Geo CD; save states are not supported. Configuration is stored in dosbox.conf: some settings can be changed through batch files, while others require editing the file. CPU cycle settings are a key factor in performance and may take trial and error to tune. The dynamic CPU core can improve performance for most games, but may reduce stability. Available memory varies by model: the PSP 1000 is limited to around 12 MB, while PSP 2000, 3000 and Go models can allocate about 42 MB by changing memsize; higher settings may cause instability. The initial pre-release build starts at a command line without a file manager, and the project recommends adding a third-party launcher such as LaunchBox for MS-DOS. The project lists a GPL-2.0 license and requires the PSP toolchain to build.

DOSBox Pure is a DOS game emulator fork that runs on Windows, macOS, and Linux, either as a standalone desktop download or as a RetroArch core. It opens ZIP and DOSZ files, DOS programs, configuration files, folders, and CD, floppy, or hard disk images. For gamepads, it can detect games and apply controller mappings, or let users map controls to emulated keyboard, mouse, and joystick inputs. Each content item has 10 save-state slots, though complex late-era DOS games may have problems and states depend on using the same game and video or CPU settings. Users can create an 8 to 1024 MB hard disk image and install an operating system from a bootable CD-ROM or floppy image. The emulated NE2000 network card cannot connect to the real internet. Graphics include 3dfx Voodoo PCI emulation, with OpenGL hardware rendering by default and a software option that uses more CPU. MIDI music can use SoundFont files or ROM files for MT-32 emulation. It is free to download; donations are welcome.