| module top( | |
| input [8:0] a, | |
| input [8:0] b, | |
| output [8:0] o1, | |
| output [2:0] o2, | |
| input [2:0] c, | |
| input [2:0] d, | |
| output [2:0] o3, | |
| output [2:0] o4, | |
| input s | |
| ); | |
| assign o1 = (s ? 0 : a + b); | |
| assign o2 = (s ? a : a - b); | |
| assign o3 = (s ? 4'b1111 : d + c); | |
| assign o4 = (s ? d : c - d); | |
| endmodule |