Behavioral Verilog Generate Case Statements Coding Example - 2023.1 English

This coding example instantiates more than two different implementations of an adder based on the width of data words.

generate
case (WIDTH)
1:
begin : case1_name
adder #(WIDTH*8) x1 (a, b, ci, sum_case, c0_case);
end
2:
begin : case2_name
adder #(WIDTH*4) x2 (a, b, ci, sum_case, c0_case);
end default:
begin : d_case_name
adder x3 (a, b, ci, sum_case, c0_case);
end
endcase
endgenerate