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:
Jul. 07, 1987
Filed:
Oct. 01, 1984
Applicant:
Inventors:
Tulley M Peters, Round Rock, TX (US);
William C Bruce, Jr, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 16 ; 364300 ; 364900 ;
Abstract
In a data processor having an instruction which requires the loading of the contents of two (2) successive locations in the address space during respective bus cycles, test circuitry is provided to selectively force the processor to twice load the contents of the same location upon execution of the instruction. Using this special load double test instruction, the processor is able to detect more precisely when the contents of the memory location changes in value as a result of the activity of other circuitry.