题解 | #串行进位加法器#
串行进位加法器
http://www.nowcoder.com/practice/83c5850805004b6d8c48742f582f304a
用generate 简化代码
module add_4(
input [3:0] A ,
input [3:0] B ,
input Ci ,
output wire [3:0] S ,
output wire Co
);
wire [3:0] tmpC;
genvar i;
generate
for (i=0; i<4; i=i+1) begin
add_full add_full(A[i], B[i], i==0? Ci:tmpC[i-1], S[i], tmpC[i]);
end
endgenerate
assign Co = tmpC[3];
endmodule
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