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I've heard that there are some protected mode BIOS routines, and I got the impression that they were interrupt handlers. I have four questions about them.

1) Do they really exist?
2) Are they provided by all BIOS makers?
3) What are they? (Interrupt handlers or what?)
4) How do I use them?

If the BIOS provided protected mode interrupt handlers they would be really convenient to use until I got my own written.

The ones i know of do the task of switching from real mode to pmode.
Anton.

The PCI bios routines can be accessed from PMode, also from what I know VESA 3.0 allows BIOS calls from PMode too.

The vast majority of standard ones will only be available in real or V86 mode.

Daryl.

Thanks. After doing a little more searching I had found the PCI routines, but didn't know about the VESA routines. But what I was really hoping for was something to do my interrupt and exception handling for me, but I guess I have to do that completely from scratch. That's kind of what I expected anyway though.