Method and system for system debugging through a keyboard device

Details Method and system for system debugging through a keyboard device Method and system for system debugging through a keyboard device

1994-10-06

1995-10-31

Beausoliel, Jr., Robert W.

Boots, shoes, and leggings

3642343, 3642344, 3649283, 3649284, 3649285, 39518303, 39518313, 39518322, 395650, G06F 1134, G06F 3023, G06F 1944

Patent

active

054637643

ABSTRACT:
A system and method for providing debugging of a data processing system having a plurality of resources, a keyboard and a multitasking operating system including a plurality of protection domains and a keyboard device driver which executes in a protection domain having maximum access privileges to system resources. A debugging module in the keyboard device driver is provided. Responsive to user selection through a predetermined key stoke sequence, the debugging module may be invoked. Utilizing the debugging module, various system registers and memory locations are accessed and the contents placed in the keyboard input buffer for display on a computer monitor.

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patent: 4837764 (1989-06-01), Russello
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patent: 4926322 (1990-05-01), Stimac et al.
patent: 4972312 (1990-11-01), den Boef
patent: 5121472 (1992-06-01), Danish et al.
patent: 5339406 (1994-08-01), Carney et al.
patent: 5357628 (1994-10-01), Yuen
"Memory Management with Multi-Tasking and Bank Switched Memory," by B. O. Anthony, Jr. et al, IBM Technical Disclosure Bulletin, vol. 31, No. 3, Aug. 1988.
"Method to Use an Alternate Terminal to Debug a Keyboard or Display Device and debugging in Multiple Virtual Environments," by R. R. Russell, et al, IBM Technical Disclosure Bulletin, vol. 29, No. 9, Feb. 1987.

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