David Mark Quong, Age 59Irvine, CA

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Irvine, CA

Hayward, CA

Mountain View, CA

376 Casselino Dr, San Jose, CA 95136 (408) 267-2718

4134 Tobin Cir, Santa Clara, CA 95054 (408) 492-1776

Union City, CA

Sammamish, WA

Oakland, CA

Issaquah, WA

Berkeley, CA

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David Quong

Location:
San Francisco Bay Area
Industry:
Computer Software

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Us Patents

Multi-Precision Fixed/Floating-Point Processor

US Patent:
4748580, May 31, 1988
Filed:
Aug 30, 1985
Appl. No.:
6/771385
Inventors:
Charles D. Ashton - Campbell CA
David K. Quong - Sunnyvale CA
Alan G. Corry - Boston MA
Assignee:
Advanced Micro Devices, Inc. - Sunnyvale CA
International Classification:
G06F 748
US Classification:
364736
Abstract:
A single-chip fixed/floating-point arithmetic processor, a three port ALU, a plurality of storage registers R, S, F0 and F1, a constant store circuit and an output data register F. Two of the storage registers R and S are provided for storing 64-bit input operands and two of the regusters F0 and F1 are provided for storing 64-bit results of operations performed in the ALU. Each of the registers are provided with three output ports and corresponding pass gates for selectively transferring data from the registers to the three inputs of the ALU under the control of control signals applied to the pass gates. The constant store is also coupled to one of the input ports of the ALU by a pass gate for transferring constants to the ALU under the control of a pass gate. Results of the ALU are provided to the data output register F for further processing off-chip.

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