techlibs/gowin/cells_map.v

   1 module  \$_DFF_N_ (input D, C, output Q); DFFN _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule
   2 module  \$_DFF_P_ #(parameter INIT = 1'b0) (input D, C, output Q); DFF  #(.INIT(INIT)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C)); endmodule
   3
   4 module  \$__DFFS_PN0_ (input D, C, R, output Q); DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(!R)); endmodule
   5 module  \$__DFFS_PP0_ (input D, C, R, output Q); DFFR _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); endmodule
   6 module  \$__DFFS_PP1_ (input D, C, R, output Q); DFFR  _TECHMAP_REPLACE_ (.D(D), .Q(Q), .CLK(C), .RESET(R)); endmodule
   7
   8 module \$lut (A, Y);
   9   parameter WIDTH = 0;
  10   parameter LUT = 0;
  11
  12   input [WIDTH-1:0] A;
  13   output Y;
  14
  15   generate
  16     if (WIDTH == 1) begin
  17       LUT1 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
  18         .I0(A[0]));
  19     end else
  20     if (WIDTH == 2) begin
  21       LUT2 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
  22         .I0(A[0]), .I1(A[1]));
  23     end else
  24     if (WIDTH == 3) begin
  25       LUT3 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
  26         .I0(A[0]), .I1(A[1]), .I2(A[2]));
  27     end else
  28     if (WIDTH == 4) begin
  29       LUT4 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.F(Y),
  30         .I0(A[0]), .I1(A[1]), .I2(A[2]), .I3(A[3]));
  31     end else begin
  32       wire _TECHMAP_FAIL_ = 1;
  33     end
  34   endgenerate
  35 endmodule