| // DESCRIPTION: Verilator: Verilog Test module |
| // |
| // This file ONLY is placed into the Public Domain, for any use, |
| // without warranty, 2009 by Wilson Snyder. |
| |
| module t (/*AUTOARG*/ |
| // Inputs |
| clk |
| ); |
| input clk; |
| integer cyc=0; |
| |
| reg [6:0] mem1d; |
| reg [6:0] mem2d [5:0]; |
| reg [6:0] mem3d [4:0][5:0]; |
| |
| integer i,j,k; |
| |
| // Four different test cases for out of bounds |
| // = |
| // <= |
| // Continuous assigns |
| // Output pin interconnect (also covers cont assigns) |
| // Each with both bit selects and array selects |
| |
| initial begin |
| mem1d[0] = 1'b0; |
| i=7; |
| mem1d[i] = 1'b1; |
| if (mem1d[0] !== 1'b0) $stop; |
| // |
| for (i=0; i<8; i=i+1) begin |
| for (j=0; j<8; j=j+1) begin |
| for (k=0; k<8; k=k+1) begin |
| mem1d[k] = k[0]; |
| mem2d[j][k] = j[0]+k[0]; |
| mem3d[i][j][k] = i[0]+j[0]+k[0]; |
| end |
| end |
| end |
| for (i=0; i<5; i=i+1) begin |
| for (j=0; j<6; j=j+1) begin |
| for (k=0; k<7; k=k+1) begin |
| if (mem1d[k] !== k[0]) $stop; |
| if (mem2d[j][k] !== j[0]+k[0]) $stop; |
| if (mem3d[i][j][k] !== i[0]+j[0]+k[0]) $stop; |
| end |
| end |
| end |
| end |
| |
| integer wi; |
| wire [31:0] wd = cyc; |
| reg [31:0] reg2d[6:0]; |
| always @ (posedge clk) reg2d[wi[2:0]] <= wd; |
| |
| always @ (posedge clk) begin |
| `ifdef TEST_VERBOSE |
| $write("[%0t] cyc==%0d reg2d[%0d]=%0x wd=%0x\n",$time, cyc, wi[2:0], reg2d[wi[2:0]], wd); |
| `endif |
| cyc <= cyc + 1; |
| if (cyc<10) begin |
| wi <= 0; |
| end |
| else if (cyc==10) begin |
| wi <= 1; |
| end |
| else if (cyc==11) begin |
| if (reg2d[0] !== 10) $stop; |
| wi <= 6; |
| end |
| else if (cyc==12) begin |
| if (reg2d[0] !== 10) $stop; |
| if (reg2d[1] !== 11) $stop; |
| wi <= 7; // Will be ignored |
| end |
| else if (cyc==13) begin |
| if (reg2d[0] !== 10) $stop; |
| if (reg2d[1] !== 11) $stop; |
| if (reg2d[6] !== 12) $stop; |
| end |
| else if (cyc==14) begin |
| if (reg2d[0] !== 10) $stop; |
| if (reg2d[1] !== 11) $stop; |
| if (reg2d[6] !== 12) $stop; |
| end |
| else if (cyc==99) begin |
| $write("*-* All Finished *-*\n"); |
| $finish; |
| end |
| end |
| endmodule |