The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1998
Filed:
Jun. 27, 1994
Dwayne Thomas Crump, Lexington, KY (US);
Steven Taylor Pancoast, Lexington, KY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A monitor and debugger routine operable on a personal computer for facilitating the design of power-on self-test (POST) and basic input and output system (BIOS) code. The monitor and debugger routine is invoked by POST code early in the system initialization process, before most of the system hardware devices have been initialized and before the operating system has been invoked. The monitor and debugger routine uses minimal system resources--lower memory and a serial communications controller--and is accessed via an external communications and display device connected via a serial communications link generated by the serial communications controller. As so invoked, the monitor and debugger routine can be used to facilitate the design and debugging of the remaining portions of the system initialization code, hardware interface code, suspend and resume code, video code, and other code that cannot be debugged using standard debuggers that require a functioning BIOS and an operating system to operate.