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:
Aug. 17, 1999
Filed:
Dec. 19, 1997
Shunsuke Kamijo, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An instruction control mechanism, for processors, capable of decoding a register instruction and an immediate instruction with a simple configuration, is disclosed. The instruction control mechanism decodes and executes an instruction set including an instruction code having an instruction field, a first field containing the description of the name of the register to be processed and a second field containing the description of the name of another register or an immediate address. A register instruction code containing the description of another register to be processed in the second field has an instruction field of a specific value, and contains the description of a second instruction field in the portion other than the second field containing another register to be processed. An immediate instruction code containing the description of an immediate address in the second field has an instruction field containing the description of other than the specific value. At least part of the immediate instruction code and at least part of an immediate-like register instruction code for performing the same processing except that the immediate address and another register to be processed are used, are assigned the same value in the first instruction field and the second instruction field.