Hi;
Hilary Cheng wrote:
> Is there any Memory Map Function in JJOS ? I am writing PCI
> Driver. But when I call the
> BIOS32 Service. It will throw 000D Exception ( Is that a Divide by
> Zero Exception ) ? I have
> several source code from other OSes. They do the same as me. If there
> is no MMap, probably
> it got some problem of my source.
With respect to using BIOS32 from flat, 32-bit protected mode, after
we've already appropriated all the interrupt handlers -- I'm not sure
that is possible right now. I'd have to look into it further.
What exactly are you trying to do? Map a region of PCI address space
into the CPU's address space? We don't have virtual memory (yet). The
next step would be to identity-map the existing physical memory anyways
so that nothing we'd done up until the virtual memory enablement would
break (that's a crappy sentence, but you probably know what I mean).
-jm
--
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