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What is the purpose of registers in microprocessor

  1. Jul 24, 2008 #1
    what is the purpose of registers in microprocessor ???
     
  2. jcsd
  3. Jul 24, 2008 #2

    berkeman

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    Staff: Mentor

    Re: microprocessor

    What would be your thoughts? Do some reading at this web page, and let us know what you've learned:

    http://en.wikipedia.org/wiki/Microprocessor
     
  4. Jul 25, 2008 #3

    MIC

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    Re: microprocessor

    When you give certain commands to the processor the bits currently on the register will undergo logical operations, or be moved to a bus/device.
     
  5. Jul 25, 2008 #4
    Re: microprocessor

    well, the same could be said of external memory, other external devices, temporary registers, and the like.
     
  6. Jul 26, 2008 #5

    Ouabache

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    Re: microprocessor

    berkeman is trying to help you learn. If you were not inspired by the reference he gave you, here is another microprocessor reference. We'd like to hear your thoughts after reading this material.
     
  7. Jul 26, 2008 #6

    MIC

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    Re: microprocessor

    then why do you have to explicitly read from or write to external memory using the registers, while information on the registers can directly be manipulated with the ALU
     
    Last edited: Jul 26, 2008
  8. Jul 26, 2008 #7
    Re: microprocessor

    Now, I think you've answered the OPs question at the programming level.
     
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