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Mirror of CollapseOS
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collapseos/apps
Virgil Dupras cc7a4bae58 zasm: improve .equ duplicate detection handling il y a 5 ans
..
at28w apps/at28w: fix argument byte order il y a 5 ans
ed ed: fix 'd' going crazy when deleting last lines of buf il y a 5 ans
lib ed: add support for 'a' and 'i' il y a 5 ans
memt apps/memt: new app il y a 5 ans
sdct sdc: support 24-bit addressing il y a 5 ans
zasm zasm: improve .equ duplicate detection handling il y a 5 ans
README.md Make userspace parse args the same way the shell does il y a 5 ans

README.md

User applications

This folder contains code designed to be “userspace” application. Unlike the kernel, which always stay in memory. Those apps here will more likely be loaded in RAM from storage, ran, then discarded so that another userspace program can be run.

That doesn't mean that you can't include that code in your kernel though, but you will typically not want to do that.

Userspace convention

We execute a userspace application by calling the address it's loaded into. This means: a userspace application is expected to return.

Whatever calls the userspace app (usually, it will be the shell), should set HL to a pointer to unparsed arguments in string form, null terminated.

The userspace application is expected to set A on return. 0 means success, non-zero means error.