ron minnich wrote:
> I have looked at sharing the stack with coreboot/vsa, but it really gets
> messy.
>
> Also, there is the still unexplained zero'ing of memory at 0x1000.
> That mostly working example i sent was with coreboot text at 0x2000.
>
> So vsa does nothing ABOVE %esp, just in the stack?
>
> This is weird. Can you trap the fs2 on a write to 0x1000 and see if that
> occurs?
>
> thanks
>
> ron
>
// for each int, we create a customized little handler
// that just pushes %ax, puts the int # in %al,
// then calls the common interrupt handler.
// this necessitated because intel didn't know much about
// architecture when they did the 8086 (it shows)
// (hmm do they know anymore even now :-)
// obviously you can see I don't really care about memory
// efficiency. If I did I would probe back through the stack
// and get it that way. But that's really disgusting.
for (i = 0; i < 256; i++) {
idts[i].cs = 0;
codeptr = (unsigned char *) 4096 + i * codesize;
idts[i].offset = (unsigned) codeptr;
memcpy(codeptr, &idthandle, codesize);
intbyte = codeptr + 3;
*intbyte = i;
}
Marc
--
Marc Jones
Senior Firmware Engineer
(970) 226-9684 Office
mailto:[EMAIL PROTECTED]
http://www.amd.com/embeddedprocessors
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