Shared bios ROM warm boot

Details Shared bios ROM warm boot Shared bios ROM warm boot

1996-12-30

1999-04-06

Kriess, Kevin A.

395830, G06F 906

Patent

active

058929436

ABSTRACT:
An interface that allows the host CPU and the keyboard controller in a PC to share a common BIOS ROM includes a logic circuit that receives a set of input signals and produces a set of signals that emulates a jump instruction op-code that causes the host CPU to vector to a specified address location in the system memory map normally reserved for the system ROM BIOS code, whenever both the host CPU and keyboard controller are contending for access to the BIOS ROM.

REFERENCES:
patent: 5022077 (1991-06-01), Bealkowski et al.
patent: 5410707 (1995-04-01), Bell
patent: 5603055 (1997-02-01), Evoy et al.
patent: 5701477 (1997-12-01), Chejlava, Jr.

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