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:
May. 24, 1988
Filed:
Jun. 26, 1985
Applicant:
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
An information processing apparatus with an instruction prefetch unit is disclosed, in which a CPU operation can be stopped at a desired address in response to a break signal. The instruction prefetch unit has an instruction prefetch circuit storing an instruction and an indication register storing the break signal. A read operation and a write operation of the indication register are executed together with those of the instruction prefetch circuit. Thus, a break point can be set a desired address by using the indication register, and the break operation can be correctly preformed without the need for complex hardware.