[rantanplan]

I'd like to write a system extension for Os 9.2 which sets some processor registers on bootup. I already have some MPC74** assembler code i'd like to include.

What developer tools do i need? Does anybody know some nice HOWTO on writing extensions for classic OS?

Thanx in advance
rantanplan

[Ludovic Hirlimann]

Originally Posted by rantanplan

I'd like to write a system extension for Os 9.2 which sets some processor registers on bootup. I already have some MPC74** assembler code i'd like to include.

What developer tools do i need? Does anybody know some nice HOWTO on writing extensions for classic OS?

Thanx in advance
rantanplan

You would need to write what's called an INIT. Documentation is named Inside Macintosh vol I -VII and should be available in pdf from apple.
The tools you can use include codewarrior, Think C, and mpw which is a free download from Apple.