HopStation

HopStation is a free, work-in-progress PlayStation (PSX/PS/PS1) emulator written in C++. It is presented mainly as a reference for emulator developers, rather than as a finished way to play games. Its emulation covers the R3000 CPU, GPU, DMA and interrupt controllers, CDROM, GTE, SPU, MDEC, and memory cards. The project has a windowed application and a headless command-line mode, plus a disassembler, executable sideloading, USB controller input, configurable logging, a VRAM viewer, and introspection windows. BIN/CUE disc images are supported, but the project describes this support as buggy. CUE-sheet parsing can stop many games from loading, and inaccurate CDROM emulation and missing SPU features also limit compatibility. A PlayStation BIOS file is required; SCPH1001, the original US launch version, is the only BIOS identified as tested. The MIT-licensed code builds for Windows, Linux, and macOS. Linux Vulkan builds require a spirv-cross-c dynamic library from the Vulkan SDK; Windows requires dxcompiler.dll and dxil.dll. The author describes HopStation as an unfinished personal learning resource and says feature contributions are unlikely to be accepted.