Self contained program loading apparatus

Details Self contained program loading apparatus Self contained program loading apparatus

1973-12-17

1976-02-24

Atkinson, Charles E.

Communications: electrical

Digital comparator systems

G06F 1104, G06F 900

Patent

active

039407446

ABSTRACT:
A Read-Only Memory device in the CPU of a microprogrammable computer contains a diagnostic program suitable for self-testing the computer. A microprogram for loading this diagnostic program from the Read-Only Memory device into Main Memory is contained in the Control Memory of the CPU. When required, the diagnostic program is loaded into Main Memory and executed thus allowing for the testing of a computer without the need of operational peripherals.

REFERENCES:
patent: 3343141 (1967-09-01), Hackl
patent: 3518413 (1970-06-01), Holtey
patent: 3634883 (1972-01-01), Kreidermacher
patent: 3675214 (1972-07-01), Ellis et al.
patent: 3696340 (1972-10-01), Matsushita et al.
patent: 3736563 (1973-05-01), Beckinger et al.
patent: 3838260 (1974-09-01), Nelson
Henion et al., Dynamic Corrective Procedure, etc., IBM Technical Disclosure Bulletin, Vol. 16, No. 7, Dec. 1973, pp. 2138-2139.
Wimer, Initiation and Execution Controls, etc., IBM Technical Disclosure Bulletin, Vol. 15, No. 6, Nov. 1972, pp. 1793.

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