module __float64__floor_with_denorms(
  input wire [63:0] f,
  output wire [63:0] out
);
  function automatic priority_sel_1b_2way (input reg [1:0] sel, input reg case0, input reg case1, input reg default_value);
    begin
      casez (sel)
        2'b?1: begin
          priority_sel_1b_2way = case0;
        end
        2'b10: begin
          priority_sel_1b_2way = case1;
        end
        2'b00: begin
          priority_sel_1b_2way = default_value;
        end
        default: begin
          // Propagate X
          priority_sel_1b_2way = 1'dx;
        end
      endcase
    end
  endfunction
  function automatic [10:0] priority_sel_11b_2way (input reg [1:0] sel, input reg [10:0] case0, input reg [10:0] case1, input reg [10:0] default_value);
    begin
      casez (sel)
        2'b?1: begin
          priority_sel_11b_2way = case0;
        end
        2'b10: begin
          priority_sel_11b_2way = case1;
        end
        2'b00: begin
          priority_sel_11b_2way = default_value;
        end
        default: begin
          // Propagate X
          priority_sel_11b_2way = 11'dx;
        end
      endcase
    end
  endfunction
  wire [10:0] f_bexp__1;
  wire [10:0] exp__1;
  wire [51:0] f_fraction__1;
  wire [51:0] fractional_mask__1;
  wire [52:0] fraction_up__2;
  wire [10:0] EXPR_MASK;
  wire and_reduce_788;
  wire eq_790;
  wire eq_791;
  wire f_sign__1;
  wire [51:0] fraction_integral__2;
  wire [51:0] fraction_integral__4;
  wire and_797;
  wire or_805;
  wire nor_806;
  wire ult_809;
  wire [10:0] add_813;
  wire [51:0] sel_815;
  wire [63:0] tuple_831;
  assign f_bexp__1 = f[62:52];
  assign exp__1 = f_bexp__1 + 11'h401;
  assign f_fraction__1 = f[51:0];
  assign fractional_mask__1 = {{21{exp__1[10]}}, exp__1} >= 32'h0000_0034 ? 52'h0_0000_0000_0000 : 52'hf_ffff_ffff_ffff >> {{21{exp__1[10]}}, exp__1};
  assign fraction_up__2 = {1'h0, f_fraction__1} + {1'h0, fractional_mask__1};
  assign EXPR_MASK = 11'h7ff;
  assign and_reduce_788 = &f_bexp__1[9:0];
  assign eq_790 = f_fraction__1 == 52'h0_0000_0000_0000;
  assign eq_791 = f_bexp__1 == EXPR_MASK;
  assign f_sign__1 = f[63:63];
  assign fraction_integral__2 = ~(~f_fraction__1 | fractional_mask__1);
  assign fraction_integral__4 = ~(~fraction_up__2[51:0] | fractional_mask__1);
  assign and_797 = f_bexp__1 == 11'h000 & eq_790;
  assign or_805 = and_797 | eq_791 & eq_790;
  assign nor_806 = ~(~eq_791 | eq_790);
  assign ult_809 = f_bexp__1 < 11'h433;
  assign add_813 = f_bexp__1 + {10'h000, f_sign__1 & fraction_up__2[52]};
  assign sel_815 = ult_809 ? (f_sign__1 ? fraction_integral__4 : fraction_integral__2) & {52{f_bexp__1[10] | and_reduce_788}} : f_fraction__1;
  assign tuple_831 = {~(nor_806 | ~f_sign__1), priority_sel_11b_2way({and_797, eq_791}, EXPR_MASK, 11'h000, ult_809 ? (~(f_bexp__1[10] | and_reduce_788) ? {1'h0, {10{f_sign__1}}} : add_813) : f_bexp__1), {priority_sel_1b_2way({or_805, nor_806}, 1'h1, 1'h0, sel_815[51]), sel_815[50:0] & {51{~(or_805 | nor_806)}}}};
  assign out = tuple_831;
endmodule