| // BCD to decimal one-of-ten decoder | |
| module ttl_7442 #(parameter WIDTH_OUT = 10, WIDTH_IN = $clog2(WIDTH_OUT), | |
| DELAY_RISE = 0, DELAY_FALL = 0) | |
| ( | |
| input [WIDTH_IN-1:0] A, | |
| output [WIDTH_OUT-1:0] Y | |
| ); | |
| //------------------------------------------------// | |
| reg [WIDTH_OUT-1:0] computed; | |
| integer i; | |
| always @(*) | |
| begin | |
| for (i = 0; i < WIDTH_OUT; i++) | |
| begin | |
| if (i == A) | |
| computed[i] = 1'b0; | |
| else | |
| computed[i] = 1'b1; | |
| end | |
| end | |
| //------------------------------------------------// | |
| assign #(DELAY_RISE, DELAY_FALL) Y = computed; | |
| endmodule | |