I ported the decompiled C code of the 1998 PlayStation version of Metal Gear Solid to the ESP32-S3.
The game code compiles directly to Xtensa machine code, with the PlayStation SDK, GPU, GTE, CD drive, scheduler, and controller replaced by software layers.
It runs on a Seeed Studio XIAO ESP32-S3 Sense with 8 MB PSRAM and microSD.
The post goes into the porting process, memory layout, scheduler, software rendering, debugging, and the bugs that took the most time to find
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It runs on a Seeed Studio XIAO ESP32-S3 Sense with 8 MB PSRAM and microSD.
The post goes into the porting process, memory layout, scheduler, software rendering, debugging, and the bugs that took the most time to find