lkml.org 
[lkml]   [2005]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.14: CR4 not needed to be inspected on the 486 anymore?
linux-os (Dick Johnson) wrote:
>>No, you won't. #UD and #GP will not (I hesitate to say never, but other
>>than a processor bug, I believe that is correct) reset the processor.
>>And CR4 is not "undocumented", even on 486.
>>
>
>
> Yes it is. The i486 Programmer's reference manual documents only
> to CR3.

The manual might be older than the newer 486 CPUs.
And don't forget that not every 486 is Intel. There are at least Cyrix,
AMD and UMC with interesting Am5x86-P75 and Cx5x86 too.

--
Ondrej Zary
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-11-07 20:05    [from the cache]
©2003-2011 Jasper Spaans