Re: how many win64?
- From: "ma" <ma@xxxxxxxxxxx>
- Date: Thu, 14 Apr 2005 17:36:15 +0100
Does this means that we will have two version of PCs from now on? One with
IA64 and the other with AMD64?
Where can I read more about this two architectures?
What processors are compatible with AMD64 ( I think it would be Atlon 64)
and what is compatible with IA64? Is Pentium 4 IA64 compatible? What about
Pentium M?
Best regards
"Calvin Guan" <cguan@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:%23DTaVbQQFHA.356@xxxxxxxxxxxxxxxxxxxxxxx
> To add what Don said:
>
> IA64 compilers try to add fixups whenever it can for unaligned data
> access. It results in big performance penalty. I've observed that 7
> instruction bundles (21 instructions) were added to fix-up an 8-byte
> unaligned access. AMD64 compiler won't do that.
>
> Unaligned access in Itanium will BSOD while AMD64 won't. This is a big
> difference between 2 platforms while you're playing with kernel code. Low
> level kernel debug is very very different too.
>
> Anyway, don't spend too much time and effort on Itanium. It doesn't worth.
>
> ---------------------------------
> Calvin Guan, Windows DDK MVP
> Software Engineer, NT Driver
> ATI Technologies Inc. www.ati.com
>
> "Don Burn" <burn@xxxxxxxxxxxxxxxx> wrote in message
> news:Zyv7e.9$Gq6.8@xxxxxxxxxxx
>> They have different instruction sets, so require you compile the driver
>> with a different compiler. For a well written driver, there should be no
>> difference, once it works on one architecture, it should work on the
>> next. Of course supporting the different architectures is a good test of
>> how well written your driver is!
>>
>>
>> --
>> Don Burn (MVP, Windows DDK)
>> Windows 2k/XP/2k3 Filesystem and Driver Consulting
>> Remove StopSpam from the email to reply
>>
>>
>>
>> "ma" <ma@xxxxxxxxxxx> wrote in message
>> news:eIfMY$PQFHA.1096@xxxxxxxxxxxxxxxxxxxxxxx
>>> Thanks for your reply.
>>>
>>> What is the difference between these two architectures?
>>>
>>> Is the window on these two platform works differently? (From the device
>>> driver point of view)
>>>
>>>
>>>
>>> Best regards
>>>
>>>
>>>
>>> "Don Burn" <burn@xxxxxxxxxxxxxxxx> wrote in message
>>> news:LVu7e.11815$_63.10809@xxxxxxxxxxx
>>>> Yes, Windows supports the extended x86 architecture for 64 bits and
>>>> Itanium. This is just like in the past when there were multiple 32-bit
>>>> versions (x86, Mips, Power PC, Alpha).
>>>>
>>>>
>>>> --
>>>> Don Burn (MVP, Windows DDK)
>>>> Windows 2k/XP/2k3 Filesystem and Driver Consulting
>>>> Remove StopSpam from the email to reply
>>>>
>>>>
>>>>
>>>>
>>>> "ma" <ma@xxxxxxxxxxx> wrote in message
>>>> news:OADOzRPQFHA.2788@xxxxxxxxxxxxxxxxxxxxxxx
>>>>> Hello,
>>>>>
>>>>> I searched around to find information about windows 64 and came
>>>>> across some definitions which struck me that there is more than one
>>>>> window 64. Am I correct?
>>>>>
>>>>>
>>>>>
>>>>> Here is a section that I found in a web site:
>>>>>
>>>>>
>>>>>
>>>>> Win64 AMD64/EM64T Unicode (Windows XP/2003 x64 Edition)
>>>>>
>>>>> Win64 IA64 Unicode (Windows XP/2003 64-bit Edition)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Best regards
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
.
- Follow-Ups:
- Re: how many win64?
- From: Ivan Brugiolo [MSFT]
- Re: how many win64?
- From: Don Burn
- Re: how many win64?
- References:
- how many win64?
- From: ma
- Re: how many win64?
- From: Don Burn
- Re: how many win64?
- From: ma
- Re: how many win64?
- From: Don Burn
- Re: how many win64?
- From: Calvin Guan
- how many win64?
- Prev by Date: Re: use createfile to access usb device
- Next by Date: Re: how many win64?
- Previous by thread: Re: how many win64?
- Next by thread: Re: how many win64?
- Index(es):
Relevant Pages
|
