32bit CLA whith 4bit blocks

목차

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본문내용

module ALU1(cin, a, b, s, cout);
input [31:0] a, b;
input cin;
output [31:0] s;
output cout;

wire w0, w1, w2, w3, w4, w5, w6;

cla4 cla4_0(.cin(cin), .a(a[3:0]), .b(b[3:0]), .s(s[3:0]), .cout(w0));
cla4 cla4_1(.cin(w0), .a(a[7:4]), .b(b[7:4]), .s(s[7:4]), .cout(w1));
cla4 cla4_2(.cin(w1), .a(a[11:8]), .b(b[11:8]), .s(s[11:8]), .cout(w2));
cla4 cla4_3(.cin(w2), .a(a[15:12]), .b(b[15:12]), .s(s[15:12]), .cout(w3));
cla4 cla4_4(.cin(w3), .a(a[19:16]), .b(b[19:16]), .s(s[19:16]), .cout(w4));

참고 자료

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