Invention Grant
- Patent Title: Clock-gating for multicycle instructions
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Application No.: US15822261Application Date: 2017-11-27
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Publication No.: US10552167B2Publication Date: 2020-02-04
- Inventor: Juergen Haess , Cédric Lichtenau , Stefan Payer , Kerstin C. Schelm
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Steven Chiu
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F1/3287

Abstract:
A system and a method of clock-gating for multicycle instructions are provided. For example, the method includes enabling a plurality of logic blocks that include a subset of multicycle (MC) logic blocks and a subset of pipeline logic blocks. The method also includes computing a precise enable computation value after a plurality of cycles of executing an instruction, and disabling one or more of the subset of multicycle (MC) logic blocks based on the precise enable computation value. Also, at least the subset of pipeline logic blocks needed to compute the instruction remains on.
Public/Granted literature
- US20180095768A1 CLOCK-GATING FOR MULTICYCLE INSTRUCTIONS Public/Granted day:2018-04-05
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