Re: require encoding

Am Sun, 27 Apr 2008 10:45:33 -0700 (PDT) schrieb Mike Gonta:

On Apr 27, 1:38 pm, Mike Gonta wrote:

Actually protected mode is not operational until
after the far jump (or far call) which "changes the
flow of execution and serializes the processor".
So the format of the instruction is 16:16.

"Operational" is not the correct word here.
After the PE bit is set in CR0 the processor is in
Protected Mode but still behaves as if in Real Mode until
the far jump which changes the "flow of execution".

Any far jump(0EAh,OFFSET,SEG/SEL) clear the prefetch-buffer?

Dirk
.

Relevant Pages

  • Re: require encoding
    ... Protected Mode but still behaves as if in Real Mode until ... the far jump which changes the "flow of execution". ...
    (comp.lang.asm.x86)
  • Re: Branch prediction scheme
    ... These will often jump to error-handling code that is located far away ... already fetched into the TLB or into already fetched cache ... path skips over the extra code. ... whose execution paths usually avoid the extra code could ...
    (comp.arch)
  • Re: KRS lake
    ... >>jump, high jump, long jump or even your jumping to conclusions! ... > irrespective of slope. ... > but it does not block the flow. ... It deals also with channel roughness - a factor governing the ...
    (sci.archaeology)
  • Re: KRS lake
    ... >If you can't even fathom the issue, ... >jump, high jump, long jump or even your jumping to conclusions! ... The river certainly "backs up" ... but it does not block the flow. ...
    (sci.archaeology)
  • Re: Optimizing case for speed (VB6)
    ... speed of execution. ... At least when I have looked at assembly code for ... If Case 1 Jump Next0001 ...
    (comp.lang.basic.visual.misc)