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I'm writing my kernel in NASM and compiling it into AOUT, which seems to have problems with my external functions. I can call functions in my other object files, but when I try and pass parameters, the can't be popped off the stack. In fact, neither push nor pop work in external procedures. How do I get it to work properly?

Fear wrote:I'm writing my kernel in NASM and compiling it into AOUT, which seems to have problems with my external functions. I can call functions in my other object files, but when I try and pass parameters, the can't be popped off the stack. In fact, neither push nor pop work in external procedures. How do I get it to work properly?

Do you use a Windows-output-generating compiler? If so, are you using stdcall or cdecl calling convention?

Is your stack valid?

Why do you use a.out as output file type?

Candy wrote:...
Why do you use a.out as output file type?

Why else? Because it's a lovely executable format.. NetBSD/OpenBSD's a.out format was anyway.

People still use ancient DOS formats in OSDev, What's wrong with using historic UNIX binary formats?

Brynet-Inc wrote:

Candy wrote:...
Why do you use a.out as output file type?

Why else? Because it's a lovely executable format.. NetBSD/OpenBSD's a.out format was anyway.

People still use ancient DOS formats in OSDev, What's wrong with using historic UNIX binary formats?

The same as with ancient DOS formats . Knowing a murderer doesn't make it right to be a thief, as a matter of speech.

Candy wrote:The same as with ancient DOS formats . Knowing a murderer doesn't make it right to be a thief, as a matter of speech.

You are so analogical it hurts!