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. 27, 1997
Filed:
Jun. 10, 1996
Klaus J Getzlaff, Schoenaich, DE;
Udo Wille, Holzgerlingen, DE;
Brigitte Roethe, Boeblingen, DE;
Wilhelm Haller, Remhshalden, DE;
Hans-Werner Tast, Weil im Schoenbush, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for executing branch or other instructions in a loop. A loop end condition is evaluated in a fixed point unit while floating point instructions are evaluated in a floating point unit. In a first execution of the instructions in the loop, the loop end condition is processed as in prior art. A branch target instruction is stored in a branch target register and an instruction address of the branch target instruction is stored in a branch address register. However, on subsequent execution of the instructions in the loop, the branch condition is evaluated and, if it is fulfilled, once the end of the loop is detected by comparison of the effective address of the next instruction to be executed with the contents of the branch address register, the effective address of the first instruction in the loop is passed from the branch target register to an operations register.