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System and method for saving and restoring a processor state without executing any instructions from a first instruction set

DC
  • US 7,730,330 B1
  • Filed: 08/10/2005
  • Issued: 06/01/2010
  • Est. Priority Date: 06/16/2000
  • Status: Expired due to Fees
First Claim
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1. A method of operating a processor having one or more registers and running a program comprising a first instruction and a next instruction from a first instruction set, said method comprising:

  • executing said first instruction;

    in response to said executing, (i) saving the register context of said registers without executing any instructions from said first instruction set; and

    (ii) removing power from said processor after said saving;

    returning power to said processor after said removing;

    after said returning, restoring said saved register context without executing any instructions from said first instruction set; and

    resuming said running of said program with said next instruction.

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