Managing stack transfers in a register-based processor

Details Managing stack transfers in a register-based processor Managing stack transfers in a register-based processor

2004-05-21

2008-03-25

Dollinger, Tonia L M (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Processing control for data transfer

C712S202000

Reexamination Certificate

active

07350059

ABSTRACT:
The present invention is generally directed to a method and apparatus for emulating a portion of a stack. Certain embodiments of the invention manage data transfers between processor registers that are configured to emulate a top portion of a stack and memory, which contains, the remainder of the stack. Some embodiments utilize a variable buffer that is configured to buffer transfers between the processor registers and the memory. The actual amount of data stored in the variable buffer is configured to be flexible, so that transfers between the variable buffer and processor registers are managed to keep the processor registers filled with active stack data (assuming that stack data exists). However, transfers between the variable buffer and memory may be configured to occur only when the variable buffer exceeds certain fill capacities.

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