Electrical computers and digital data processing systems: input/ – Interrupt processing
Reexamination Certificate
2007-05-08
2007-05-08
Ray, Gopal C. (Department: 2111)
Electrical computers and digital data processing systems: input/
Interrupt processing
C710S104000, C719S321000
Reexamination Certificate
active
10895489
ABSTRACT:
A technique according to the invention enables a single BIOS to support processors with or without 64-bit extensions efficiently. The BIOS creates a data structure having entries that correspond to elements stored in a state save area. The state save area elements themselves may be located at different addresses depending on whether or not the host processor includes 64-bit extensions. But the corresponding entries in the data structure are located at the same offsets within the data structure in either case. During execution of an SMI handler routine, the BIOS accesses the data structure whenever it needs to access elements of the state save area.
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Hart Kevin M.
Hewlett--Packard Development Company, L.P.
Ray Gopal C.
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