Re: video driver protocol

[Ramon van Handel]

Jeroen Janssen wrote:
> I "only" have a bit of a problem with the guest/virtcode/ example
> program that I would like to modify with some testcode. I would like to
> modify it with some port I/O. however I'm not familiar with the GCC ASM
> syntax

It's worth learning.  It's a *lot* nicer than Intel's
attempt at an assembly language! ;)

> and I *think* I can not use any standard library functions. Can

That's right.

> somebody provide me with a function that outputs a DWORD to a port?

Have a look in, for instance,
guest/preemptive/include/ioport.h

-- Ramon