| // DESCRIPTION: Verilator: Verilog Test module |
| // |
| // This file ONLY is placed into the Public Domain, for any use, |
| // without warranty, 2009 by Wilson Snyder. |
| |
| bit global_bit; |
| |
| module t (clk); |
| input clk; |
| integer cyc=0; |
| |
| typedef struct packed { |
| bit b1; |
| bit b0; |
| } strp_t; |
| |
| typedef struct packed { |
| strp_t x1; |
| strp_t x0; |
| } strp_strp_t; |
| |
| typedef union packed { |
| strp_t x1; |
| strp_t x0; |
| } unip_strp_t; |
| |
| typedef bit [2:1] arrp_t; |
| typedef arrp_t [4:3] arrp_arrp_t; |
| |
| typedef strp_t [4:3] arrp_strp_t; |
| |
| typedef bit arru_t [2:1]; |
| typedef arru_t arru_arru_t [4:3]; |
| typedef arrp_t arru_arrp_t [4:3]; |
| typedef strp_t arru_strp_t [4:3]; |
| |
| strp_t v_strp; |
| strp_strp_t v_strp_strp; |
| unip_strp_t v_unip_strp; |
| arrp_t v_arrp; |
| arrp_arrp_t v_arrp_arrp; |
| arrp_strp_t v_arrp_strp; |
| arru_t v_arru; |
| arru_arru_t v_arru_arru; |
| arru_arrp_t v_arru_arrp; |
| arru_strp_t v_arru_strp; |
| |
| real v_real; |
| real v_arr_real [2]; |
| string v_string; |
| |
| typedef struct packed { |
| logic [31:0] data; |
| } str32_t; |
| str32_t [1:0] v_str32x2; // If no --trace-struct, this packed array is traced as 63:0 |
| initial v_str32x2[0] = 32'hff; |
| initial v_str32x2[1] = 0; |
| |
| typedef enum int { ZERO=0, ONE, TWO, THREE } enumed_t; |
| enumed_t v_enumed; |
| enumed_t v_enumed2; |
| typedef enum logic [2:0] { BZERO=0, BONE, BTWO, BTHREE } enumb_t; |
| enumb_t v_enumb; |
| |
| p #(.PARAM(2)) p2 (); |
| p #(.PARAM(3)) p3 (); |
| |
| always @ (posedge clk) begin |
| cyc <= cyc + 1; |
| v_strp <= ~v_strp; |
| v_strp_strp <= ~v_strp_strp; |
| v_unip_strp <= ~v_unip_strp; |
| v_arrp_strp <= ~v_arrp_strp; |
| v_arrp <= ~v_arrp; |
| v_arrp_arrp <= ~v_arrp_arrp; |
| v_real <= v_real + 0.1; |
| v_string <= cyc[0] ? "foo" : "bar"; |
| v_arr_real[0] <= v_arr_real[0] + 0.2; |
| v_arr_real[1] <= v_arr_real[1] + 0.3; |
| v_enumed <= v_enumed + 1; |
| v_enumed2 <= v_enumed2 + 2; |
| v_enumb <= v_enumb - 1; |
| for (integer b=3; b<=4; b++) begin |
| v_arru[b] <= ~v_arru[b]; |
| v_arru_strp[b] <= ~v_arru_strp[b]; |
| v_arru_arrp[b] <= ~v_arru_arrp[b]; |
| for (integer a=3; a<=4; a++) begin |
| v_arru_arru[a][b] = ~v_arru_arru[a][b]; |
| end |
| end |
| v_str32x2[0] <= v_str32x2[0] - 1; |
| v_str32x2[1] <= v_str32x2[1] + 1; |
| if (cyc == 5) begin |
| $write("*-* All Finished *-*\n"); |
| $finish; |
| end |
| end |
| endmodule |
| |
| module p; |
| parameter PARAM = 1; |
| initial global_bit = 1; |
| endmodule |