Apparatus and method for direct loading of offset register durin

Details Apparatus and method for direct loading of offset register durin Apparatus and method for direct loading of offset register durin

1997-07-30

1999-09-14

Kim, Kenneth S.

Electrical computers and digital processing systems: processing

Processing control

Processing control for data transfer

710 5, 710260, 711208, G06F 9312

Patent

active

059516763

ABSTRACT:
An apparatus and method for loading a pointer into a selector register/general purpose register pair is provided. The apparatus and method utilizes a single micro instruction to load an offset directly into the general purpose register, during the write back stage of a pipeline, while storing the old value in the general purpose register into a temporary register, in an earlier stage in the pipeline. Thus, the general purpose register is overwritten with the offset before the selector load completes. If the selector load operation fails, the general purpose register may be restored from the temporary register.

REFERENCES:
patent: 4385352 (1983-05-01), Bienvenie
patent: 5379392 (1995-01-01), Alferness et al.
patent: 5812813 (1998-09-01), Henry et al.

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