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Intelligent multiple stack management unit

  • US 6,006,323 A
  • Filed: 05/20/1998
  • Issued: 12/21/1999
  • Est. Priority Date: 05/20/1998
  • Status: Expired due to Term
First Claim
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1. A stack management unit comprising:

  • a plurality of register stacks organized as a frame stack and configured to store a corresponding plurality of frame portions and a corresponding plurality of stack pointer data, wherein said plurality of frame portions together comprise a frame and each of said plurality of stack pointer data indicate a position of a corresponding one of said frame portions in said plurality of stack registers;

    a stack pointer register configured to store said plurality of stack pointer data during a call operation to said frame stack and a return operation from said frame stack; and

    a control unit configured to control the storage of said frame in said frame stack and the storage of said plurality of stack pointer data in said stack pointer register during said call operation, and configured to retrieve said frame from said frame stack using said plurality of stack pointer data stored in said stack pointer register during said return operation.

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