Method and apparatus for RAM emulation using a processor register set

  • US 6,263,412 B1
  • Filed: 06/24/1998
  • Issued: 07/17/2001
  • Est. Priority Date: 06/24/1998
  • Status: Expired due to Term
First Claim
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1. An apparatus in a processor-based system for redirecting accesses to a volatile memory, initiated by an application program stored in non-volatile memory, to internal registers of a processor prior to initialization of the volatile memory, comprising:

  • a non-volatile memory for storing one or more instructions; and

    a processor including one or more internal registers, the processor, in response to the one or more instructions, to allocate one or more memory locations in the volatile memory;

    detect an access from the application program to at least one memory location of the volatile memory;

    redirect the access to the at least one internal register; and

    process an instruction sequence corresponding to the access to the at least one internal register.

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