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;
  wire [51:0] f_fraction__1;
  wire [51:0] fractional_mask__2;
  wire [52:0] fraction_up__2;
  wire [10:0] EXPR_MASK;
  wire and_reduce_688;
  wire eq_690;
  wire eq_691;
  wire f_sign__1;
  wire [51:0] fraction_integral__2;
  wire [51:0] fraction_integral__4;
  wire and_697;
  wire or_705;
  wire nor_706;
  wire ult_709;
  wire [10:0] add_713;
  wire [51:0] sel_715;
  wire [63:0] tuple_731;
  assign f_bexp__1 = f[62:52];
  assign exp = f_bexp__1 + 11'h401;
  assign f_fraction__1 = f[51:0];
  assign fractional_mask__2 = {{21{exp[10]}}, exp} >= 32'h0000_0034 ? 52'h0_0000_0000_0000 : 52'hf_ffff_ffff_ffff >> {{21{exp[10]}}, exp};
  assign fraction_up__2 = {1'h0, f_fraction__1} + {1'h0, fractional_mask__2};
  assign EXPR_MASK = 11'h7ff;
  assign and_reduce_688 = &f_bexp__1[9:0];
  assign eq_690 = f_fraction__1 == 52'h0_0000_0000_0000;
  assign eq_691 = f_bexp__1 == EXPR_MASK;
  assign f_sign__1 = f[63:63];
  assign fraction_integral__2 = ~(~f_fraction__1 | fractional_mask__2);
  assign fraction_integral__4 = ~(~fraction_up__2[51:0] | fractional_mask__2);
  assign and_697 = f_bexp__1 == 11'h000 & eq_690;
  assign or_705 = and_697 | eq_691 & eq_690;
  assign nor_706 = ~(~eq_691 | eq_690);
  assign ult_709 = f_bexp__1 < 11'h433;
  assign add_713 = f_bexp__1 + {10'h000, f_sign__1 & fraction_up__2[52]};
  assign sel_715 = ult_709 ? (f_sign__1 ? fraction_integral__4 : fraction_integral__2) & {52{f_bexp__1[10] | and_reduce_688}} : f_fraction__1;
  assign tuple_731 = {~(nor_706 | ~f_sign__1), priority_sel_11b_2way({and_697, eq_691}, EXPR_MASK, 11'h000, ult_709 ? (~(f_bexp__1[10] | and_reduce_688) ? {1'h0, {10{f_sign__1}}} : add_713) : f_bexp__1), {priority_sel_1b_2way({or_705, nor_706}, 1'h1, 1'h0, sel_715[51]), sel_715[50:0] & {51{~(or_705 | nor_706)}}}};
  assign out = tuple_731;
endmodule