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Low overhead interrupt

  • US 20030028696A1
  • Filed: 06/01/2001
  • Published: 02/06/2003
  • Est. Priority Date: 06/01/2001
  • Status: Abandoned Application
First Claim
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1. A method for processing a low-overhead interrupt, comprising:

  • detecting the occurrence of an interrupt condition that requires servicing;

    determining that the interrupt condition corresponds to a fast interrupt;

    loading a first instruction of an interrupt service routine (ISR) into an instruction register for immediate execution;

    loading an address of a second instruction within the ISR into a program counter; and

    fetching the second ISR instruction while executing the first ISR instruction.

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