Invention Grant
US07853635B2 Modular binary multiplier for signed and unsigned operands of variable widths
有权
具有可变宽度的有符号和无符号操作数的模块二进制乘法器
- Patent Title: Modular binary multiplier for signed and unsigned operands of variable widths
- Patent Title (中): 具有可变宽度的有符号和无符号操作数的模块二进制乘法器
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Application No.: US11749224Application Date: 2007-05-16
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Publication No.: US07853635B2Publication Date: 2010-12-14
- Inventor: Fadi Y. Busaba , Steven R. Carlough , David S. Hutton , Christopher A. Krygowski , John G. Rell, Jr. , Sheryll H. Veneracion
- Applicant: Fadi Y. Busaba , Steven R. Carlough , David S. Hutton , Christopher A. Krygowski , John G. Rell, Jr. , Sheryll H. Veneracion
- 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 John Campbell
- Main IPC: G06F7/38
- IPC: G06F7/38 ; G06F7/52

Abstract:
A system for binary multiplication in a superscalar processor includes a first pipeline, an execution unit, and a first multiplexer; a first rotator in communication with one register of the first pipeline and the execution unit; and a leading zero detection register in communication with the execution unit and another register of the first pipeline; a second pipeline, a second execution unit, and a second multiplexer; a rotator in communication with one register of the second pipeline and the second execution unit; and a leading zero detection register in communication with the second execution unit and another register of the first pipeline; and a third pipeline, a binary multiplier in communication with a pair registers of the third pipeline; a general register; an operand buffer for obtaining first and second operands; and a bus for communication between the pipelines, the general register and the operand buffer.
Public/Granted literature
- US20070233773A1 MODULAR BINARY MULTIPLIER FOR SIGNED AND UNSIGNED OPERANDS OF VARIABLE WIDTHS Public/Granted day:2007-10-04
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