>>> There are many hurdles that you'll encounter. Firstly, you'll need a
>>> hard drive that's small and old enough that MS-DOS will actually be able
>>> to use it.
>>
>> I suspect so long as it isn't native 4K sectors, it'll just be reported
>> as 2GB.
>
> Bwahaha! Dream on :-P
>
> I might be wrong, but I'd suspect you'll get anything from 2GB down to
> -2GB, depending on whatever value the result overflows to.

And I think *you* will find that drives larger than 2GB report 
themselves using a different BIOS API.

>>> There are also probably many problems you will encounter
>>> due to the fact that your CPU is so damn fast.
>>
>> Hell yes!
>
> Indeed. IIRC even in the times of the 386DX-50, programs written in
> Turbo Pascal would already occasionally to crash with a division by zero
> right at the start, because in order to calibrate the delay() loop the
> runtime library would run the loop N times, figure out that it took 0
> seconds, and conclude that for 1 second it would need to run the loop
> N/0 times... Whoops!

OK, well I've never seen *that*... I have seen plenty of PCs with a 
"turbo" button though.

It was there for a reason.

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