> On Jun 30, 2017, at 10:56 PM, Rugxulo wrote:
>
> Hi,
>
>> On Fri, Jun 30, 2017 at 8:02 PM, Jerome Shidel wrote:
>>
>> In case you haven't heard, there is a severe bug in Intel Skylake and Newer
>> CPUs.
>
> Most of us aren't trendy. This Nehalem Westmere (Core gen #1) is my
> newest machine (so far). ;-)
What? Are you telling me DOS users aren't trendy? ;-)
>
>> I only know a little about it. From what I heard, it crops up with
>> hyper-threading
>> inside loops less than 64 bytes effecting several high byte registers (AH,
>> BH, etc).
>> They are working on a microcode patch and hopefully will have it out soon.
>
> Don't panic! Bugs are part of life ("par for the course").
At least they claim they can fix it. :-)
>
> http://www.os2museum.com/wp/vme-fixed-on-amd-ryzen/
>
>> So, I guess it could effect DOS asm code running inside a VM.
>>
>> I think it's been a while since there last major bug. Last one I recall was
>> that Pentium 90 Floating Point problem.
>
> You mean the FDIV bug? That was fixed in 120 Mhz (and higher) models.
>
> But there have always been other cpu bugs:
>
> * https://en.wikipedia.org/wiki/Pentium_F00F_bug
> * (P3 serializing bug)
> http://web.archive.org/web/20070808143526/http://clio.rice.edu:80/djgpp/r5bug05.txt
I was never bit by ether. So, my memory of them is foggy at best.
>
> So this is far from the last one we'll see.
No doubt. CPUs are complex little monsters.
>
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> Freedos-devel mailing list
> Freedos-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/freedos-devel
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
___
Freedos-devel mailing list
Freedos-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freedos-devel