The PlayStation (PSX) was a groundbreaking console in its time, and emulating it was a challenging task. Developing an emulator required a deep understanding of the console's architecture, which was quite complex compared to other systems of the era.
: Upon the first launch, you may need to map your keyboard or controller buttons via the internal menu (typically accessed by pressing the Tab key during a game). 3. Compatibility and Limitations
However, as a research tool, it is invaluable. The source code (if you can find the corresponding diff from that date) shows the exact logic used to emulate the MDEC video decoder.
, which aims to document and emulate a vast array of arcade systems, pSxMAME focused its energy on the Sony ZN-1 and ZN-2
Developers realized that the PSX CPU (MIPS R3000A) was well-documented in MAME’s arcade drivers. By grafting the PSX’s memory map and GPU (the infamous "GPU" chip) onto MAME’s framework, they could theoretically achieve 100% accuracy. psxmame was that experiment.
