Method for providing protected mode services for device drivers

Details Method for providing protected mode services for device drivers Method for providing protected mode services for device drivers

1994-02-17

1995-10-17

Kriess, Kevin A.

Boots, shoes, and leggings

395375, 364280, 364DIG1, G06F 938, G06F 946

Patent

active

054598699

ABSTRACT:
A method and system for allowing protected mode device drivers and resident programs to load and execute from an MS/PC-DOS environment. A further method enabling such protected mode programs in an Intel x86 environment to transition between host environments is provided. In a preferred embodiment, a method for allowing for protected mode programs running in a DOS environment which can then transition and continue to function in a Windows environment. An improved method of mode switching for such drivers is also provided.

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patent: 4825358 (1989-04-01), Letwin
patent: 4926322 (1990-05-01), Stimac et al.
patent: 4974159 (1990-11-01), Hargrove et al.
patent: 5027273 (1991-06-01), Letwin
patent: 5193161 (1993-03-01), Bealkowaski et al.
patent: 5255379 (1993-10-01), Melo
patent: 5303378 (1994-04-01), Cohen

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