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Size of segment registers in 80386

Discussion in 'General Electronics Chat' started by Eletronpower, Nov 17, 2014.

  1. Eletronpower

    Eletronpower New Member

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    What is the size of segment registers (CS,DS,SS) in 80386. I know they contain a visible and a hidden part. The visible part is the one which the programmer can see and the hidden part is the one which is used as a cache for storing the base, limit and attributes of the segment. The size of the visible part is 16 bits but what about the hidden part? And if the size of this register is not 16 bits then why do we say this is a 16 bit register?
     
  2. ronsimpson

    ronsimpson Well-Known Member Most Helpful Member

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