module __float64__floor_daz(
  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__2;
  wire [10:0] exp__1;
  wire [51:0] tuple_index_878;
  wire [51:0] fractional_mask__1;
  wire eq_883;
  wire [52:0] fraction_up__2;
  wire and_reduce_892;
  wire f_sign__1;
  wire [10:0] EXPR_MASK;
  wire [51:0] f_fraction__1;
  wire [51:0] fraction_integral__2;
  wire [51:0] fraction_integral__4;
  wire eq_903;
  wire eq_904;
  wire ult_912;
  wire [10:0] add_915;
  wire nor_918;
  wire [51:0] sel_919;
  wire [63:0] tuple_935;
  assign f_bexp__2 = f[62:52];
  assign exp__1 = f_bexp__2 + 11'h401;
  assign tuple_index_878 = 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 eq_883 = f_bexp__2 == 11'h000;
  assign fraction_up__2 = {1'h0, tuple_index_878} + {1'h0, fractional_mask__1};
  assign and_reduce_892 = &f_bexp__2[9:0];
  assign f_sign__1 = f[63:63];
  assign EXPR_MASK = 11'h7ff;
  assign f_fraction__1 = tuple_index_878 & {52{~eq_883}};
  assign fraction_integral__2 = ~(~tuple_index_878 | fractional_mask__1);
  assign fraction_integral__4 = ~(~fraction_up__2[51:0] | fractional_mask__1);
  assign eq_903 = f_bexp__2 == EXPR_MASK;
  assign eq_904 = f_fraction__1 == 52'h0_0000_0000_0000;
  assign ult_912 = f_bexp__2 < 11'h433;
  assign add_915 = f_bexp__2 + {10'h000, f_sign__1 & fraction_up__2[52]};
  assign nor_918 = ~(~eq_903 | eq_904);
  assign sel_919 = ult_912 ? (f_sign__1 ? fraction_integral__4 : fraction_integral__2) & {52{f_bexp__2[10] | and_reduce_892}} : tuple_index_878;
  assign tuple_935 = {~(nor_918 | ~f_sign__1), priority_sel_11b_2way({eq_883, eq_903}, EXPR_MASK, 11'h000, ult_912 ? (~(f_bexp__2[10] | and_reduce_892) ? {1'h0, {10{f_sign__1}}} : add_915) : f_bexp__2), {priority_sel_1b_2way({eq_883 | eq_903 & eq_904, nor_918}, 1'h1, 1'h0, sel_919[51]), sel_919[50:0] & {51{~(eq_883 | eq_903)}}}};
  assign out = tuple_935;
endmodule