[HACK] NT4 Intel SSE/SSE2 Driver for Any CPU

[roytam1]

diff:
000000D8: CC 63
000000D9: F7 63
header checksum

000002CD: 03 01
000002CE: 7F 90
000002CF: 3E 90
(relax CPUID limit)

000002F5: 75 90
000002F6: 0B 90
(relax CPUID vendor string limit)

With these changes intlfxsr.sys works in every CPU including AMD and VIA C7 CPUs.



Download: http://roy.dnsd.me/nt4sse.zip

[WindowsBetalovr]

Why would you want this? Please, enlighten me

[roytam1]

Why would you want this? Please, enlighten me

I'd use another question to answer your question: Why limiting the ways for playing your toy?
With SSE-capable CPU and SSE driver, NT4 can run programs that requires SSE instructions.

[Knabe91]

Very interesting, would this work on newer versions of NT? I have an old slot a Athlon with no sse/sse2 support so it would be cool to get it to run sse code.

[roytam1]

Very interesting, would this work on newer versions of NT? I have an old slot a Athlon with no sse/sse2 support so it would be cool to get it to run sse code.

If the CPU doesn't support SSE/SSE2 at all, this driver cannot make it available.

[Knabe91]

Very interesting, would this work on newer versions of NT? I have an old slot a Athlon with no sse/sse2 support so it would be cool to get it to run sse code.

If the CPU doesn't support SSE/SSE2 at all, this driver cannot make it available.

So it only allows NT4 to use SSE/SSE2 code?

[roytam1]

Very interesting, would this work on newer versions of NT? I have an old slot a Athlon with no sse/sse2 support so it would be cool to get it to run sse code.

If the CPU doesn't support SSE/SSE2 at all, this driver cannot make it available.

So it only allows NT4 to use SSE/SSE2 code?

Yes.
NT4 kernel rejects SSE/SSE2 instructions without this driver.

[z180]

Good for the many Windows 2000 beta builds here on FTP.

[Wheatley]

Yeah, thanks for this.