Design an 8-bit ripple-carry adder with 4-bit blocks. 4-bit full adder block isshown in Fig. 4.(b) Design an 8-bit subtractor with 4-bit full adder blocks and inverter gates.

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(a) Design an 8-bit ripple-carry adder with 4-bit blocks. 4-bit full adder block isshown in Fig. 4.(b) Design an 8-bit subtractor with 4-bit full adder blocks and inverter gates.

1* Binary
2nd Binary
Number
Number
Az Az A¡ Ag
B3 B2 B, Bọ
74LS83
CouT
CN
4-bit Full Adder
S3
Si So
CuT
Summed Output
Figure 4: Problem 6, 4-bit full adder block
Transcribed Image Text:1* Binary 2nd Binary Number Number Az Az A¡ Ag B3 B2 B, Bọ 74LS83 CouT CN 4-bit Full Adder S3 Si So CuT Summed Output Figure 4: Problem 6, 4-bit full adder block
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