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发表于 2023-6-1 20:12:36
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本帖最后由 Himem 于 2023-6-2 01:45 编辑
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11:
F = Σm(2,3,5,7,11,13)
OUT
= B ~C D + ~B C D + ~A B D + ~A ~B C
= D(B ^ C) + ~A (C D + ~B C)
= ( D and (B xor C)) or ((not A) and ( (C and D) or ( (not B) and C ) ))
AND*4 OR*2 NOT*2 XOR*1
= ( D and (B xor C)) or ((not A) and ( (C and D) or ( B nor (not C) ) ))
= ( D and (B xor C)) or (A nor ( not (C and D) or ( B nor (not C) ) ))
AND*2 OR*2 NOT*2 NOR*2 XOR*1
12:
0*0 = b0000
0*1 = b0000
0*2 = b0000
0*3 = b0000
1*0 = b0000
1*1 = b0001
1*2 = b0010
1*3 = b0011
2*0 = b0000
2*1 = b0010
2*2 = b0100
2*3 = b0110
3*0 = b0000
3*1 = b0011
3*2 = b0110
3*3 = b1001
#I1 = (B and C)
#I2 = (A and D)
OUT_0
= B D
= not (B nand D)
OUT_1
= ~A B C + A ~B D + A ~C D + B C ~D
= A D ( ~B + ~C ) + B C ( ~A + ~D )
= #I1 xor #I2
OUT_2
= A C ~D + A ~B C
= A C (~D + ~B)
= ((not A) or (C nor C)) nor OUT_0
OUT_3
= A B C D
= ( #I1 nand #I2 ) xor 1
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