Methods for synchronous code retrieval from an asynchronous...

Details Methods for synchronous code retrieval from an asynchronous... Methods for synchronous code retrieval from an asynchronous...

2007-07-01

2011-10-11

Nguyen, Van (Department: 2196)

Data processing: software development, installation, and managem

Software upgrading or updating

C710S260000, C710S267000

Reexamination Certificate

active

08037468

ABSTRACT:
The present invention discloses methods for delivering code to a host system including the steps of: accepting a CPU request, from a host-system processor of the host system, for a code segment; initiating a retrieval process to retrieve the code segment; upon expiration of a predetermined time, checking whether the code segment is ready for delivery; upon the predetermined time expiring before the code segment is ready for delivery, providing an SWI that is different than the code segment; and upon the predetermined time expiring after the code segment is ready for delivery, providing the code segment. Preferably, the SWI causes the host-system processor to jump to a reset-vector address. Most preferably, the reset-vector code, located at the reset-vector address, includes a command to request the code segment again.

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