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:
Feb. 15, 1994
Filed:
Jul. 14, 1992
Tohru Utsumi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An information processor for prefetching memory operands stored in an external storage device comprises a first storage for storing addresses used for accessing the external storage device; a selector for selecting either an address in the first storage or data read out of the external storage device; a second storage for storing the contents selected by the selector as well as data to be written in the external storage device; a third storage for storing an address read out of the first or second storage; and a controller. When an error occurs in reading data from the external storage device, the controller controls the selector to select the address in the first storage as an error address. The error address is once stored in the second storage and then transferred to and stored in the third storage. When an error occurs in writing data into the external storage device, the controller controls the third storage such that the address in the first storage is directly transferred to and stored in the third storage. The error address stored in the third storage is used for an interrupt process for coping with the error.