Boots – shoes – and leggings
Patent
1996-08-15
1998-12-01
Malzahn, David H.
Boots, shoes, and leggings
36478601, G06F 750
Patent
active
RE0359777
ABSTRACT:
Look up tables for use in programmable logic devices are modified to facilitate use of those tables to provide adders (including subtracters) and various types of counters. Each look up table is effectively partitioned into smaller look up tables when an adder or counter is required. One portion of the partitioned table is used to provide a sum out signal, while the other portion of the partitioned table is used to provide a fast carry out signal for application to the next stage of the adder or counter. If desired, each logic module including such a look up table may further include logic circuitry for logically combining its normal output with the signal applied to its carry in input to facilitate the provision of wide fan in functions having more inputs than can be accepted by a single logic module.
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Cliff Richard G.
Cope L. Todd
Pedersen Bruce B.
Veenstra Kerry
Altera Corporation
Jackson Robert R.
Malzahn David H.
Treyz G. Victor
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