Write the equations for the carry lookahead logic for a 64 bit adder using the new notation from Exercise B 26 and using 16 bit adders as building blocks Include a drawing similar to Figure B 6 3 in your solution Figure B 6 3 Carryln a0 Carryln Resulto 3 at ALUO pi PO GO C1 ci 1 Carry lookahead unit Carryin Result4 7 ALU1 pi 1 gi 1 P1 G1 b7 C2 ci 2 b8 a9 Carryln Result8 11 b9 a10 b10 a11 b11 ALU2 pi 2 gi 2 P2 G2 ci 3 a12 12 a13 b13 a14 14 a15 b15 Carryln Result1215 ALU3 pi 3 P3 gi 3 G3 C4 ci 4 CarryOut

Question: Write the equations for the carry-lookahead logic for a 64-bit adder using the new notation from Exercise B.26 and using 16-bit adders as building blocks.

Write the equations for the carry-lookahead logic for a 64-bit adder using the new notation from Exercise B.26 and using 16-bit adders as building blocks. Include a drawing similar to Figure B.6.3 in your solution.

Figure B.6.3

Carryln a0 Бо Carryln Resulto-3 at ALUO pi PO GO C1 ci+ 1 Carry-lookahead unit Carryin Result4-7 ALU1 pi+1 gi+ 1 P1 G1

Carryln a0 Carryln Resulto-3 at ALUO pi PO GO C1 ci+ 1 Carry-lookahead unit Carryin Result4-7 ALU1 pi+1 gi+ 1 P1 G1 b7 C2 ci+ 2 b8 a9 Carryln Result8-11 b9 a10 b10 a11 b11 ALU2 pi + 2 gi+2 P2 G2 ci+3 a12 12 a13 b13 a14 14 a15 b15 Carryln Result1215 ALU3 pi+3 P3 gi+3 G3 C4 ci+ 4 CarryOut

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