Multi-Level Logic: CAD Tools for Simplication

BCD Increment By 1

.model bcd.increment

.inputs a b c d

.outputs w x y z

.names a b c d z w

1---1 1

0111- 1

.names a b c w z x

01-0- 1

0-100 1

.names a c z y

-11 1

000 1

.names a b c d z

0--0 1

-000 1

.end

Mis Output

Z = A' D' + B' C' D'

Y = C Z + A' C' Z'

W = A Z + A' B C D

X = A' B W' + A' C W' Z'

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