Invention Grant
- Patent Title: Fractional pointer lookup table
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Application No.: US15796521Application Date: 2017-10-27
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Publication No.: US10372414B2Publication Date: 2019-08-06
- Inventor: Chintan S. Patel , Alan Dodson Smith
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Meyertons Hood Kivlin Kowert and Goetzel PC
- Agent Rory D. Rankin
- Main IPC: G06F7/535
- IPC: G06F7/535 ; G06F7/498 ; G06F16/901

Abstract:
Systems, apparatuses, and methods for implementing a fractional pointer lookup table are disclosed. A system includes a fractional pointer lookup table and control logic coupled to the table. The control logic performs an access to the table with a numerator and a denominator, wherein the numerator and the denominator are integers. The control logic receives a result of the lookup, wherein the result is either a rounded-up value of a quotient of the numerator and denominator or a rounded-down value of the quotient. In one embodiment, the control logic provides a fractional pointer to the table with each access and receives a fractional pointer limit from the table. The control logic initializes the fractional pointer to zero, increments the fractional pointer after each access to the table, and resets the fractional pointer to zero when the fractional pointer reaches the fractional pointer limit.
Public/Granted literature
- US20190129693A1 FRACTIONAL POINTER LOOKUP TABLE Public/Granted day:2019-05-02
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