eco2exe

The eco2exe tool takes a Net Yaroze program and creates a working PSX-EXE executable ready to be used in an emulator (if it supports running bare PSX-EXEs), or built into a disc image to be loaded by a real PlayStation (if it can play burned discs). The input may be the ECOFF produced by the SDK's own toolchain or the ELF produced by TinyGo or a current mipsel-none-elf toolchain.

It does this by parsing the compiled program, combining it with the Net Yaroze development library (aka libps.exe) and then converting the combined program to the PSX-EXE executable format. The executable is patched with a startup stub that initializes the library before jumping to the program's entry point.

$ eco2exe prog.elf MAIN.EXE
created "MAIN.EXE": 47fb1ad6d1aee3c8bdf71bdc2ecd144b

Note: The Net Yaroze development library itself is relatively small, so it has been embedded in the eco2exe binary, meaning it doesn't need to be provided by the user!

nyc does the same for every program it builds, so a build with it needs no separate step.