- 专利标题： Hexadecimal floating point multiply and add instruction
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申请号： US17194740申请日： 2021-03-08
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公开(公告)号： US11531546B2公开(公告)日： 2022-12-20
- 发明人: Eric Mark Schwarz , Stefan Payer , Petra Leber , Kerstin Claudia Schelm , Michael Klein , Timothy Slegel , Reid Copeland , Xin Guo
- 申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址： US NY Armonk
- 专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址： US NY Armonk
- 代理机构： Heslin Rothenberg Farley & Mesiti P.C.
- 代理商 Edward J. Wixted, III, Esq.; Blanche E. Schiller, Esq.
- 主分类号： G06F9/38
- IPC分类号： G06F9/38 ; G06F9/30 ; G06F9/345
摘要：
An instruction to perform an operation selected from a plurality of operations configured for the instruction is executed. The executing includes determining a value of a selected operand of the instruction. The determining the value is based on a control of the instruction and includes reading the selected operand of the instruction from a selected operand location to obtain the value of the selected operand, based on the control having a first value, and using a predetermined value as the value of the selected operand, based on the control having a second value. The value and another selected operand of the instruction are multiplied to obtain a product. An arithmetic operation is performed using the product and a chosen operand of the instruction to obtain an intermediate result. A result from the intermediate result is obtained and placed in a selected location.
公开/授权文献
- US20220283818A1 HEXADECIMAL FLOATING POINT MULTIPLY AND ADD INSTRUCTION 公开/授权日：2022-09-08
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