System and method for loading compressed embedded diagnostics
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United States of America Patent
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Jun 25, 1996
Issued Date -
N/A
app pub date -
Jul 14, 1993
filing date -
Mar 22, 1993
priority date (Note) -
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Abstract
Disclosed are a system and method for loading diagnostic routines for execution in a computer system. The method comprises the steps of (1) executing a boot loading routine stored in non-volatile memory within the computer system, the boot loading routine providing an environment in lieu of an operating system of the computer system within which to execute diagnostic routines, the boot loading routine including a decompression routine, (2) decompressing a compressed diagnostic routine stored in the non-volatile memory into video random access memory (RAM) and (3) executing the decompressed diagnostic routine under control of the boot loading routine. The present invention, in its preferred embodiment, allows relatively large diagnostic routines to be stored in electrically erasable programmable read only memory ('EEPROM') and decompressed, as required, into video RAM for execution, without requiring the computer's operating system to function.
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