Topic created on: March 15, 2009 02:47 CDT by modest .

Huh, I noticed this in Intel x86 manuals just now.
How do you think, what this could be in future? For what?
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  2EH-CS segment override (use with any branch instruction is reserved)
  36H-SS segment override prefix (use with any branch instruction is reserved)
  3EH-DS segment override prefix (use with any branch instruction is reserved)
  26H-ES segment override prefix (use with any branch instruction is reserved)
  64H-FS segment override prefix (use with any branch instruction is reserved)
  65H-GS segment override prefix (use with any branch instruction is reserved)