Open source implementation of ps system module.
With intent of being a documentation supplement, but also working as replacement.
Also in mind trying to make result binary as small as possible.
Most names related to PS or pxi:ps9 commands were from 3dbrew or derived from information given by.

Just run make.
It will create a cxi file, and you can extract code.bin and exheader.bin with ctrtool, or some other tool, to place it in /luma/titles/0004013000003102/.
This requires game patching to be enabled on luma config.

This code itself is under Unlicense. Read LICENSE.txt
The folders source/3ds and include/3ds have some source files that were taken from ctrulib, with modifications for the purpose of this program.
Copy of ctrulib's license in LICENSE.ctrulib.txt

Ctrulib changed to generate smaller code, slimmed down sources and headers for a quicker read, and not depend on std libraries.
As well some changes to behavior on result throw.
SVCs were also made inlinable by making static inline functions that use __asm__ and explicit register variables instead.
What's not part of the original ctrulib, as of time of this code release, is the mcupls and pxips9 related service handle code.