|
Xn |
Yn |
Bn |
Bn+1 |
Dn |
|
|
0 |
0 |
0 |
0 |
0 |
|
|
0 |
0 |
1 |
1 |
1 |
|
|
0 |
1 |
0 |
1 |
1 |
|
|
0 |
1 |
1 |
1 |
0 |
|
|
1 |
0 |
0 |
0 |
1 |
|
|
1 |
0 |
1 |
0 |
0 |
|
|
1 |
1 |
0 |
0 |
0 |
|
|
1 |
1 |
1 |
1 |
1 |
全減算器
|
[Bn+1] |
Yn Bn |
||||
|
00 |
01 |
11 |
10 |
||
|
Xn |
0 |
0 |
1 |
1 |
1 |
|
1 |
0 |
0 |
1 |
0 |