adder16.v

来自「多个Verilog和vhdl程序例子」· Verilog 代码 · 共 17 行

`include "scaleabl.v"

// Scaling an adder by overriding the parameter value with '#'

module adder16(cout, sum, a, b, cin);
output cout;
/* We are also using a parameter at this level of hierarchy */
parameter my_size = 16;	// I want a 16 bit adder
output [my_size-1: 0] sum;
input [my_size-1: 0] a, b;
input cin;

/* my_size overwrites size inside instance my_adder of adder */
adder #(my_size) my_adder (cout, sum, a, b, cin);

endmodule