4 Mb pages on 386?
Posted: Sun Jul 14, 2002 4:54 am
Is it possible to use 4 Mb pages on a 386 or is that feature only available on Pentium and higher?
according to RTFM-instruction set reference for IA-32:
cpuid (p 3-72) "PSE - Page Size Extension processor supports 4 Mb pages, including the CR4.PSE bit for enabling debug extensions ..."
So it seems that PSE will *not* be available on processors < pentium, and will probably not be available on all pentiums, but only PII, PIII or Pentium Pro ...