You are an expert Verilog hardware designer working on a complete FPGA or ASIC project. You are given the full source code of a Verilog project. One of the modules in the project is incomplete — its implementation is missing and marked with:

// >>> Module Implementation Begin

// <<< Module Implementation End

Your task is to complete the missing implementation so that the entire project functions correctly. You must infer what the missing module or logic is supposed to do by analyzing the rest of the codebase: module names, signal connections, instantiations, comments, and usage patterns.

Follow these rules:

1. Only generate Verilog code to go between the `// >>> Module Implementation Begin` and `// <<< Module Implementation End` comments.
2. Use Verilog-2001 syntax. Ensure the code is synthesizable.
3. Assume the goal is a working, integrated hardware design — your code must make the whole system function as intended.
4. Analyze the naming, I/O ports, and how the module is instantiated or used in other parts of the project.
5. Implement correct behavior based on design context. Do not guess randomly — reason it out.
6. Avoid vendor-specific features unless explicitly required.
7. Do not output comments, explanation, or anything outside the required code region unless explicitly asked.

Your output should contain **only the Verilog code** that fits inside the marked region.

/* 
 * Copyright (c) 2024 Your Name
 * SPDX-License-Identifier: Apache-2.0
 */

`default_nettype none

module tt_um_dlfloatmac (
    input  wire [7:0] ui_in,    // Dedicated inputs
    output wire [7:0] uo_out,   // Dedicated outputs
    input  wire [7:0] uio_in,   // IOs: Input path
    output wire [7:0] uio_out,  // IOs: Output path
    output wire [7:0] uio_oe,   // IOs: Enable path (active high: 0=input, 1=output)
    input  wire       ena,      // will go high when the design is enabled
    input  wire       clk,      // clock
    input  wire       rst_n     // reset_n - low to reset
);

wire [15:0]data_in;
wire [15:0] c;
wire [15:0]wa,wb;

wire [7:0] c_byte;


assign uio_oe = 8'b0;
assign uio_out= 8'b0;
  
assign data_in = {uio_in,ui_in};

reg_wrapper wrap(clk,rst_n,data_in,wa,wb);
dlfloat_mac MAC(clk,rst_n,wa,wb,c);
out_wrapper wrap2(clk,rst_n,c,c_byte); 


assign uo_out = c_byte[7:0];
wire _unused = &{ena, 1'b0};
   
endmodule

module reg_wrapper(
    input clk,
    input rst_n,
    input [15:0] data_in,
    output reg [15:0] reg_a,
    output reg [15:0] reg_b
);
// >>> Module Implementation Begin

// <<< Module Implementation End
endmodule



module out_wrapper(
    input clk,
    input rst_n,
    input [15:0] c,
    output reg [7:0] c_byte
);

    reg [1:0] state;

   always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        state <= 2'b00; 
        c_byte <=8'b0;
    end
    else begin
        case (state)
            2'b00: begin
		    c_byte <= c[15:8];
                state <= 2'b01;
            end
            2'b01: begin
		    c_byte <= c[7:0]; 
                state <= 2'b00;
            end
            default: state <= 2'b00; 
        endcase
    end
end

endmodule

module dlfloat_mac(clk,rst_n,a,b,c_out);
  input [15:0]a,b;
  input clk,rst_n;
  output reg [15:0]c_out;
  wire [15:0]fprod,fadd;
  
  always @(posedge clk or negedge rst_n ) begin
    if(!rst_n) begin
      c_out<=16'b0;
    end
    else begin
  	c_out<= fadd;
    end
  end
  	
  dlfloat_mult mul(a,b,fprod,clk,rst_n);
  dlfloat_adder add(fprod,c_out,fadd);
  
endmodule 
  
module dlfloat_mult(a,b,c_mul,clk,rst_n);
  input  [15:0]a,b;
  input clk,rst_n;
  output  reg[15:0]c_mul;
    
    reg [9:0]ma,mb; //1 extra because 1.smthng
    reg [8:0] mant;
    reg [19:0]m_temp; //after multiplication
    reg [5:0] ea,eb,e_temp,exp;
    reg sa,sb,s;
    reg [15:0] c_mul1;
	
  always @(posedge clk or negedge rst_n) begin
    if(!rst_n) begin
      c_mul<=16'b0;
    end
    else begin
      c_mul<=c_mul1;
    end
  end	
  	
  always@(*) begin
        ma ={1'b1,a[8:0]};
        mb= {1'b1,b[8:0]};
        sa = a[15];
        sb = b[15];
        ea = a[14:9];
        eb = b[14:9];
  	
       //to avoid latch inference
  	e_temp = 6'b0;
  	m_temp = 20'b0;
  	mant=9'b0;
  	exp= 6'b0;
  	s=0;
  	
  	//checking for underflow/overflow
    if (  (ea + eb) <= 31 ) begin
  		c_mul1=16'b0;//pushing to zero on underflow
  	end
    else if ( (ea + eb) > 94) begin
      if( (sa ^ sb) ) begin
          c_mul1=16'hFDFE;//pushing to largest -ve number on overflow
        end
      else begin
          c_mul1=16'h7DFE;//pushing to largest +ve number on overflow
      end
    end
        
  	else if ( (ea + eb) == 94 ) begin
		c_mul1=16'hFFFF;//pushing to inf if exp is all ones
 	end
        else begin	
        e_temp = ea + eb - 31;
        m_temp = ma * mb;
		
        mant = m_temp[19] ? m_temp[18:10] : m_temp[17:9];
        exp = m_temp[19] ? e_temp+1'b1 : e_temp;	
        s=sa ^ sb;
		
 	//checking for special cases	
         if( a==16'hFFFF | b==16'hFFFF ) begin
            c_mul1 =16'hFFFF;
         end
        else begin
           c_mul1 = (a==0 | b==0) ? 0 :{s,exp,mant};
         end 
 	end 
    end 
	wire _unused = &{m_temp[8:0], 9'b0};
endmodule 
 
module dlfloat_adder(input [15:0] a1, input [15:0] b1,output reg [15:0] c_add);
   
   	
    reg    [5:0] Num_shift_80; 
    reg    [5:0]  Larger_exp_80,Final_expo_80;
    reg    [9:0] Small_exp_mantissa_80,S_mantissa_80,L_mantissa_80,Large_mantissa_80;
    reg    [8:0] Final_mant_80;
    reg    [10:0] Add_mant_80,Add1_mant_80;
    reg    [5:0]  e1_80,e2_80;
    reg    [8:0] m1_80,m2_80;
    reg          s1_80,s2_80,Final_sign_80;
    reg    [8:0]  renorm_shift_80;
    reg signed [5:0] renorm_exp_80;
    reg signed [5:0] larger_expo_neg;
   
    
    always@(*) begin
        //stage 1
     	     e1_80 = a1[14:9];
    	     e2_80 = b1[14:9];
             m1_80 = a1[8:0];
     	     m2_80 = b1[8:0];
             s1_80 = a1[15];
       	     s2_80 = b1[15];
        
	    Num_shift_80=6'b0;
	  
           if (e1_80  > e2_80) begin
              Num_shift_80           = e1_80 - e2_80;
              Larger_exp_80          = e1_80;                     
              Small_exp_mantissa_80  = {1'b1,m2_80};
              Large_mantissa_80      = {1'b1,m1_80};
           end
        
           else begin
             Num_shift_80           = e2_80 - e1_80;
             Larger_exp_80          = e2_80;
             Small_exp_mantissa_80  = {1'b1,m1_80};
             Large_mantissa_80      = {1'b1,m2_80};
           end
        
	    if (e1_80 == 0 | e2_80 ==0) begin
	        Num_shift_80 = 0;
	        Small_exp_mantissa_80 = 10'd512; //to avoid subnormal mantissa to be greater than normal mantissa pushing it to all zeros and leading 1      
	    end
	    else begin
	        Num_shift_80 = Num_shift_80;
	    end
            
            
           //stage 2 
           //shift and append smaller mantissa
	    Small_exp_mantissa_80  = (Small_exp_mantissa_80 >> Num_shift_80);
              
           //stage 3
           //add the mantissas
                                                    
            if (Small_exp_mantissa_80  < Large_mantissa_80) begin
		   S_mantissa_80 = Small_exp_mantissa_80;
	    	   L_mantissa_80 = Large_mantissa_80;
            end
            else begin
			
		   S_mantissa_80 = Large_mantissa_80;
		   L_mantissa_80 = Small_exp_mantissa_80;
            end       
                       
            Add_mant_80=11'b0;
	
	    if (e1_80!=0 & e2_80!=0) begin
		   if (s1_80 == s2_80) begin
        		Add_mant_80 = S_mantissa_80 + L_mantissa_80;
		    end else begin
			   Add_mant_80 = L_mantissa_80 - S_mantissa_80;
		    end
	    end	
 	    else begin
		    Add_mant_80 ={1'b0, L_mantissa_80};
	    end
      
	   //renormalization for mantissa and exponent
           //stage 4
	   //to avoid latch inference
	   renorm_exp_80=6'd0;
	   renorm_shift_80=9'd0;
	   Add1_mant_80=Add1_mant_80;
	   
           if (Add_mant_80[10] ) begin
		   Add1_mant_80= Add_mant_80 >> 1;
		   renorm_exp_80 = 6'd1;
	   end
           else begin 
              if (Add_mant_80[9])begin
	   	     renorm_shift_80 = 0;
	   	     renorm_exp_80 = 0;		
	      end
              else if (Add_mant_80[8])begin
	   	     renorm_shift_80 = 9'd1; 
	   	     renorm_exp_80 = -1;
	      end 
              else if (Add_mant_80[7])begin
	      	      renorm_shift_80 = 9'd2; 
	      	      renorm_exp_80 = -2;		
	      end  
              else if (Add_mant_80[6])begin
	    	      renorm_shift_80 = 9'd3; 
	    	      renorm_exp_80 = -3;		
	      end
              else if (Add_mant_80[5])begin
	    	      renorm_shift_80 = 9'd4; 
	   	      renorm_exp_80 = -4;		
	      end
              else if (Add_mant_80[4])begin
	    	      renorm_shift_80 = 9'd5; 
	    	      renorm_exp_80 = -5;		
	      end
              else if (Add_mant_80[3])begin
	   	      renorm_shift_80 = 9'd6; 
	   	      renorm_exp_80 = -6;		
	      end
              else if (Add_mant_80[2])begin
	   	      renorm_shift_80 = 9'd7; 
	   	      renorm_exp_80 = -7;		
	       end
              else if (Add_mant_80[1])begin
	   	      renorm_shift_80 = 9'd8; 
	    	      renorm_exp_80 = -8;		
	      end
              else if (Add_mant_80[0])begin
	    	      renorm_shift_80 = 9'd9; 
	    	      renorm_exp_80 = -9;		
	      end
	      else begin
		      renorm_exp_80=6'd0;
	              renorm_shift_80=9'd0;
	              Add1_mant_80=Add1_mant_80;
	      end
	  	   
              Add1_mant_80 = Add_mant_80 << renorm_shift_80;
            
          end

          Final_expo_80 = 6'd0;//to avoid latch inference
	  Final_mant_80 = 9'd0;//to avoid latch inference  
	  Final_sign_80=0;//to avoid latch inference 
          larger_expo_neg = -Larger_exp_80;
      
        //calculating final sign	   
	       if (s1_80 == s2_80) begin
		     Final_sign_80 = s1_80;
	       end 
	       else begin   //if sign is different
	          if (e1_80 > e2_80) begin
	       	     Final_sign_80 = s1_80;	
	          end 
	          else if (e2_80 > e1_80) begin
		     Final_sign_80 = s2_80;
	          end
	          else begin
                     if (m1_80 > m2_80) begin
			            Final_sign_80 = s1_80;		
		             end
		            else if (m1_80 < m2_80) begin
			           Final_sign_80 = s2_80;
		            end
		           else begin
		              Final_sign_80 = 0;
		           end	  
                 end
	       end
      
         
           //checking for overflow/underflow
           if(  Larger_exp_80 == 63 & renorm_exp_80 == 1) begin //overflow
             if (  Final_sign_80 ) begin
                c_add=16'hFDFE;//largest -ve value
             end
             else begin
               c_add=16'h7DFE;//largest +ve value
             end
  
           end
           else if ((Larger_exp_80 >= 1) & (Larger_exp_80 <= 8) & (renorm_exp_80 <  larger_expo_neg)) begin //underflow
             if (  Final_sign_80 ) begin
               c_add=16'h8201;//smallest -ve value
               end
             else begin
               c_add=16'd513;//smallest +ve value
             end
            end 
           else begin
      	   
               Final_expo_80 =  Larger_exp_80 + renorm_exp_80;
      
      	       if(Final_expo_80 == 6'b0) begin
                     c_add=16'b0;
               end
               else if( Final_expo_80 == 63) begin
                     c_add=16'hFFFF;
               end      
	      
               Final_mant_80 = Add1_mant_80[8:0]; 
	       
               //checking for special cases
               if( a1==16'hFFFF | b1==16'hFFFF) begin
                 c_add = 16'hFFFF;
               end
               else begin
                 c_add = (a1==0 & b1==0)?0:{Final_sign_80,Final_expo_80,Final_mant_80};
               end 
           end//for overflow/underflow 
  end //for always block 
endmodule


Reference solution:
rtl/generated.v: 
   reg [1:0] state;
   reg [15:0] temp_data;

 always @(posedge clk or negedge rst_n) begin
     if (!rst_n) begin
        state <= 2'b00; 
        reg_a <= 16'b0;
        reg_b <= 16'b0;
        temp_data <= 16'b0;
     end
     else begin
        case (state)
            2'b00: begin
                temp_data <= data_in;
                reg_a<=16'b0;
                reg_b<=16'b0;
                state <= 2'b01;
            end
            2'b01: begin
                reg_a <= temp_data;
                reg_b <= data_in;
                state <= 2'b00;
            end
            default: state <= 2'b00; 
        endcase
     end
  end