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:
Oct. 23, 1990
Filed:
Feb. 29, 1988
Isao Utsumi, Tokyo, JP;
Yoshikazu Mori, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A compiler system compiles a source program described with assembler instructions, each of which defines microoperations, into a target program for use in a digital signal processor. If two of the assembler instructions are interlocked with each other and if another assembler instructions which is not associated with the interlocked instructions is present, it is inserted between the interlocked instructions to thereby reorder the microoperations of the source program. Thereafter, the microoperations thus reordered are combined so as not to conflict with each other with regard to the fields of the assembler instructions and resources used by the assembler instructions. Prior to combining the microoperations, whether or not a basic block of assembler instructions included in the source program having a loop may be determined. If so, a head portion of the basic block forming the loop may then be transferred to a tail portion of the basic block forming the loop.