techlibs/greenpak4/cells_sim.v

   1 module GP_DFF(input D, CLK, nRSTZ, nSETZ, output reg Q);
   2         parameter [0:0] INIT = 1'bx;
   3         initial Q = INIT;
   4         always @(posedge CLK, negedge nRSTZ, negedge nSETZ) begin
   5                 if (!nRSTZ)
   6                         Q <= 1'b0;
   7                 else if (!nSETZ)
   8                         Q <= 1'b1;
   9                 else
  10                         Q <= D;
  11         end
  12 endmodule
  13
  14 module GP_2LUT(input IN0, IN1, output OUT);
  15         parameter [3:0] INIT = 0;
  16         assign OUT = INIT[{IN1, IN0}];
  17 endmodule
  18
  19 module GP_3LUT(input IN0, IN1, IN2, output OUT);
  20         parameter [7:0] INIT = 0;
  21         assign OUT = INIT[{IN2, IN1, IN0}];
  22 endmodule
  23
  24 module GP_4LUT(input IN0, IN1, IN2, IN3, output OUT);
  25         parameter [15:0] INIT = 0;
  26         assign OUT = INIT[{IN3, IN2, IN1, IN0}];
  27 endmodule