add_rca_16.v

来自「Systemverilog 编写的贩卖机代码」· Verilog 代码 · 共 12 行

module Add_rca_16_0_delay(sum,c_out,a,b,c_in);
	output[15:0]		sum;
	output					c_out;
	input[15:0]			a,b;
	input						c_in;
	wire						c_in4,c_in8,c_in12,c_out;
	
	Add_rca_4 M1		(sum[3:0],c_in4,a[3:0],b[3:0],c_in);
	Add_rca_4 M2		(sum[7:4],c_in8,a[7:4],b[7:4],c_in4);
	Add_rca_4 M3		(sum[11:8],c_in12,a[11:8],b[11:8],c_in8);
	Add_rca_4 M4		(sum[15:12],c_inout,a[15:12],b[15:12],c_in12);
endmodule