On Tue, Feb 12, 2013 at 3:19 PM, H. Peter Anvin <h...@zytor.com> wrote:
>
> Yes, but there doesn't seem to be any other way to do this. gcc won't
> even allow "=cd" even if we know the variable is 64 bits, even though
> "=A" is documented to be equivalent to "=da".
No, "=da" means value "in edx _or_ %eax". Not the same as "A".
But you're right, there's nothing similar for %ebx:%ecx. I thought
there was. I was really sure we did something special for 64-bit adc
etc.
> Let me know what you think.
I guess we don't have any choice. And the other cleanups certainly look good.
Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
