| |
| module test_signed(a, b, c, d, y); |
| |
| input [3:0] a, b, c; |
| input signed [3:0] d; |
| output reg [7:0] y; |
| |
| always @* begin |
| if (a && b) |
| y = c; |
| else |
| y = d; |
| end |
| |
| endmodule |
| |
| module test_const(a, y); |
| |
| input [3:0] a; |
| output reg [28:0] y; |
| |
| always @* |
| case (a) |
| 4'b0000: y = 0; |
| 4'b0001: y = 11; |
| 4'b0010: y = 222; |
| 4'b0011: y = 3456; |
| 4'b0100: y = 'b10010010; |
| 4'b0101: y = 'h123abc; |
| 4'b0110: y = 'o1234567; |
| 4'b0111: y = 'd3456789; |
| 4'b1000: y = 16'b10010010; |
| 4'b1001: y = 16'h123abc; |
| 4'b1010: y = 16'o1234567; |
| 4'b1011: y = 16'd3456789; |
| 4'b1100: y = { "foo", "bar" }; |
| 4'b1101: y = "foobarfoobarfoobar"; |
| 4'b1110: y = 16'h1; |
| 4'b1111: y = a; |
| default: y = 'bx; |
| endcase |
| |
| endmodule |
| |
