Invention Grant
- Patent Title: Instructions for vector multiplication of unsigned words with rounding
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Application No.: US16642778Application Date: 2017-09-27
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Publication No.: US11221849B2Publication Date: 2022-01-11
- Inventor: Venkateswara R. Madduri , Carl Murray , Elmoustapha Ould-Ahmed-Vall , Mark J. Charney , Robert Valentine , Jesus Corbal
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Nicholson De Vos Webster & Elliott LLP
- International Application: PCT/US2017/053649 WO 20170927
- International Announcement: WO2019/066797 WO 20190404
- Main IPC: G06F9/22
- IPC: G06F9/22 ; G06F9/30 ; G06F9/38

Abstract:
Disclosed embodiments relate to executing a vector multiplication instruction. In one example, a processor includes fetch circuitry to fetch the vector multiplication instruction having fields for an opcode, first and second source identifiers, and a destination identifier, decode circuitry to decode the fetched instruction, execution circuitry to, on each of a plurality of corresponding pairs of fixed-sized elements of the identified first and second sources, execute the decoded instruction to generate a double-sized product of each pair of fixed-sized elements, the double-sized product being represented by at least twice a number of bits of the fixed size, and generate an unsigned fixed-sized result by rounding the most significant fixed-sized portion of the double-sized product to fit into the identified destination.
Public/Granted literature
- US20210072985A1 INSTRUCTIONS FOR VECTOR MULTIPLICATION OF UNSIGNED WORDS WITH ROUNDING Public/Granted day:2021-03-11
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