| `default_nettype none |
| |
| // Technically the value assignment could be anything, but most tools default to a 32-bit logic assigning MODE_A = 0 and MODE_B = 1 |
| typedef enum {MODE_A, MODE_B} Mode_t; |
| |
| typedef enum logic [1:0] {READ=2'd1, WRITE=2'd2, NONE=2'd0} Operation_t; |
| |
| module Example( |
| input logic rawMode, |
| output logic [1:0] rawOperation |
| ); |
| |
| Mode_t mode; |
| Operation_t operation; |
| |
| // cast into a strongly typed variant |
| assign mode = Mode_t'(rawMode); |
| assign rawOperation = operation; |
| |
| always_comb begin |
| case(mode) |
| MODE_A: operation = READ; |
| MODE_B: operation = WRITE; |
| default: operation = NONE; |
| endcase |
| end |
| |
| endmodule |
