Friday, 1 April 2011

difference between hardware and software interrupts in 8085 microprocessor

Differentiate between hardware interrupts and software interrupts of 8085.

  • The software interrupt is initiated by the main program, but the hardware interrupt is initiated by an external device.
  • In 8085, the software interrupt cannot be disabled or masked but the hardware interrupt except TRAP can be disabled or masked.

5 comments:

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  2. nice and short..

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  3. Does XRA A affect the carry flag or not?

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    Replies
    1. i guess no @sanjay kumar
      as XRA A
      Will Ex-Or the content of acc. with itself
      it does not add or subtract anything from it...

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  4. can i get more differences between software and hardware intterupt

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