cache tag calculation

This is a discussion on cache tag calculation within the Tech Board forums, part of the Community Boards category; how would you calculate the cache tag? is there a way to break a binary address into it's separate parts? ...

  1. #1
    essence of digital xddxogm3's Avatar
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    cache tag calculation

    how would you calculate the cache tag?
    is there a way to break a binary address into it's separate parts?
    i know that we the block address is calculated by dividing the byte address by the block size. i know the set index is calculated by modulating the block address by the total number of sets. but how do you calculate the cache tag?
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  2. #2
    and the hat of wrongness Salem's Avatar
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    Treat the address as an unsigned long say, then use bitwise operators to mask off certain groups of bits.
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