> the bios will set the carry flag on the return from the call should
> there be an error. However, the BIOS on my PC doesnt do this- infact
> it seems to simply return from the call without changing any registers.
Your BIOS is faulty. No new suprises.
> meme801:
> + xorl %edx, %edx # Clear regs to work around
> + xorl %ecx, %ecx # flakey BIOSes which don't
> + # use carry bit correctly
> + # This way we get 0MB ram on
> + # call failure
Wouldn't setting the carry flag be clearer ?
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