Sommatore 8 bit + 8 bit (ripple-carry)

Ingressi (bit)
A (A7..A0):
B (B7..B0):
A = 0 (dec) B = 0 (dec) A + B = 0 (dec)
A (bin) = 00000000 B (bin) = 00000000 A + B (bin) = 000000000
Bits (MSB → LSB = C8 S7 S6 S5 S4 S3 S2 S1 S0): 0 0 0 0 0 0 0 0 0
A7..A0 B7..B0 Carry chain C0→C8 C0=0 C8 FA0 A0 B0 C0 S0 C1 FA1 A1 B1 C1 S1 C2 FA2 A2 B2 C2 S2 C3 FA3 A3 B3 C3 S3 C4 FA4 A4 B4 C4 S4 C5 FA5 A5 B5 C5 S5 C6 FA6 A6 B6 C6 S6 C7 FA7 A7 B7 C7 S7 C8 FAi: Si = Ai ⊕ Bi ⊕ Ci , Ci+1 = (Ai ∧ Bi) ∨ (Ci ∧ (Ai ⊕ Bi))