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Will kernel compiled for PentiumII run on IBM 6x86MX?

DISCUSSION Asfand Yar Qazi 3 participants 3 messages Aug 5, 2003

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Hi,

Read somewhere that the 6x86MX is PentiumII code compatible, but these processors are listed as two separate options under the kernel config (2.4.21)

Will a kernel/apps compiled for PII run on a 6x86MX?

Thanks,
Asfand Yar

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Quoted 5 lines · Asfand Yar Qazi

Read somewhere that the 6x86MX is PentiumII code compatible, but these processors are listed as two separate options under the kernel config (2.4.21)

Will a kernel/apps compiled for PII run on a 6x86MX?

I don't know the details in this particular case. However, even if two CPUs are object code compatible, it doesn't mean that instruction scheduling, caching and such things behave the same way. Code optimized for one CPU might not be optimal for another, even if it runs.

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Måns Rullgård
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In reply to Asfand Yar Qazi
Quoted 7 lines · Asfand Yar Qazi

Hi,

Read somewhere that the 6x86MX is PentiumII code compatible, but these processors are listed as two separate options under the kernel config (2.4.21)

Will a kernel/apps compiled for PII run on a 6x86MX?

You could try, but I wouldn't recommend it. IBM/Cyrix 6x86MX is more like CONFIG_M586MMX. It's a souped up Pentium really (read not P6).

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Thanks,
Asfand Yar

Regards,
Reid

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Reid Hekman <[email protected]>