module test; bit b; bit [9:0] b10; bit signed bs; bit unsigned bu; bit signed [6:0] bs7; bit unsigned [5:0] bu6; initial begin b = 1; b10 = 100; bs = 0; bu = 1; bs7 = -17; bu6 = 21; #1; if (b * b10 !== 100) begin $display ("FAILED 1"); $finish; end if (bs * b10 !== 0) begin $display ("FAILED 2" ); $finish; end if (bu * b10 !== 100) begin $display ("FAILED 3"); $finish; end if (bs7 * 1 !== -17) begin $display ("FAILED 4"); $finish; end if (bu6 * b !== 21) begin $display ("FAILED 5"); $finish; end $display ("PASSED"); end endmodule