Boots – shoes – and leggings
Patent
1990-02-21
1991-10-01
Harkcom, Gary V.
Boots, shoes, and leggings
G06F 738
Patent
active
050539868
ABSTRACT:
A circuit for preserving sign information in a computer system. The computer system is capable of comparing and operating on the absolute value of two operands utilizing a pipelined architecture. Sign information is preserved through the use of a first plurality of stages corresponding to stages of the pipeline for storing sign information of a first operand and a second plurality of stages corresponding to stages of the pipeline for storing sign information of a second operand. Sign information is piped through the first and second plurality of stages under common control with the control for the pipeline. Upon completion of the comparison operation, the sign information for the operands is available. Further, the sign information for the first and second operands are coupled as inputs to a multiplexor. The multiplexor is controlled to select either the sign information of the first operand or the sign information of the second operand for storage as the sign of the result depending on the result of the comparison operation.
REFERENCES:
patent: 4774685 (1988-09-01), McClary et al.
patent: 4777593 (1988-10-01), Yoshida
patent: 4779192 (1988-10-01), Torii et al.
Ahsan Agha Y.
Rockwood Christopher B.
Harkcom Gary V.
Mai Tan V.
Stardent Computer, Inc.
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