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20. Real Mode Segmented Model, Cont.


  • The next instruction to be executed is pointed to by the CS:IP register pair.

  • Machine instructions called jumps can change CS to another code segment if necessary.

  • The program can span several code segments.

  • There is no direct CS manipulation to change from one code segment to another:

    • when a jump instruction needs to take execution into a different code segment, it changes CS value for you.

  •   The real mode segmented model


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