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概括简要
Distributive:
(x And (y Or z)) = (x And y) Or (x And z)
(x Or (y And z)) = (x Or y) And (x Or z)
De Morgan:
Not(x And y) = Not(x) Or Not(y)
Not(x Or y) = Not(x) And Not(y)
Double negation:
Not(Not(x)) = x
选择器Mux
a | b | sel | out |
---|---|---|---|
0 | 0 | 0 | 0 |
0 | 0 | 1 | 0 |
0 | 1 | 0 | 0 |
0 | 1 | 1 | 1 |
1 | 0 | 0 | 1 |
1 | 0 | 1 | 0 |
1 | 1 | 0 | 1 |
1 | 1 | 1 | 1 |
(Not(a) And b And sel) OR
(a And Not(b) And Not(sel)) OR
(a And b And Not(sel)) OR
(a And b And sel)
= (b ANd sel) OR (a And Not(sel))
DMux
in | sel | a | b |
---|---|---|---|
0 | 0 | 0 | 0 |
0 | 1 | 0 | 0 |
1 | 0 | 1 | 0 |
1 | 1 | 0 | 1 |
分解成两个任务,a和b
in And Not(sel)
in And sel
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