Re: memory size detection problem on 2.3.16+ and 2.4.x

[Alan Cox]

> 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 ?