diff --git a/mips-control.v b/mips-control.v
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+
+
+module MIPS_CONTROL
+  (
+   op_in,
+   func_in,
+   
+   branch_out, 
+   regWrite_out, 
+   regDst_out, 
+   extCntrl_out, 
+   ALUSrc_out, 
+   ALUCntrl_out, 
+   memWrite_out,
+   memRead_out,
+   memToReg_out, 
+   jump_out,
+   
+   );
+   
+   parameter control_delay = 6;  
+
+   input [5:0]  op_in, func_in;
+   
+   output [3:0] ALUCntrl_out;
+   reg [3:0] 	ALUCntrl_out;
+   
+   output 	branch_out, jump_out;				
+   reg 		branch_out, jump_out;				
+   
+   output 	regWrite_out, regDst_out;
+   reg 		regWrite_out, regDst_out;
+   
+   output 	extCntrl_out, ALUSrc_out;
+   reg 		extCntrl_out, ALUSrc_out;
+   
+   output 	memWrite_out, memRead_out, memToReg_out;
+   reg 		memWrite_out, memRead_out, memToReg_out;
+   
+
+   always@*
+     begin
+	#control_delay;
+
+	casex({op_in, func_in})
+
+	  // nop
+	  {6'h0, 6'h0}: 
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b0; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0010; //pg316*
+	    
+	    end // case: {6'h0, 6'h0}
+	  
+	  // addi
+ 	  {6'h8, 6'hx}: // addi
+	    begin
+	       regDst_out   = 1'b0;
+	       ALUSrc_out   = 1'b1;
+	       memToReg_out = 1'b0;
+	       regWrite_out = 1'b1;
+	       memWrite_out = 1'b0;
+	       memRead_out  = 1'b0;
+	       branch_out   = 1'b0;
+	       jump_out     = 1'b0;
+	       extCntrl_out = 1'b1;
+	       ALUCntrl_out = 4'b0010;
+	    
+	    end // case: {6'h8, 6'hx}
+	  	  
+	  {6'hf, 6'hx}: // lui
+	    begin	
+	       regDst_out   = 1'b0;
+	       ALUSrc_out   = 1'b1;
+	       memToReg_out = 1'b0;
+	       regWrite_out = 1'b1;
+	       memWrite_out = 1'b0;
+	       memRead_out  = 1'b0;
+	       branch_out   = 1'b0;
+	       jump_out     = 1'b0;
+	       extCntrl_out = 1'bx;
+	       ALUCntrl_out = 4'b1111; 
+         
+	    end // case: 6'hf
+
+	  {6'h0, 6'h20}: // add
+	    begin
+	       regDst_out   = 1'b1;
+	       ALUSrc_out   = 1'b0;
+	       memToReg_out = 1'b0;
+	       regWrite_out = 1'b1;
+	       memWrite_out = 1'b0;
+	       memRead_out  = 1'b0;
+	       branch_out   = 1'b0;
+	       jump_out     = 1'b0;
+	       extCntrl_out = 1'bx;
+	       ALUCntrl_out = 4'b0010;
+	    
+	    end // case: {6'h0, 6'h20}
+	  
+	  
+	  
+	  {6'h0, 6'h22}: //sub
+	    begin       
+	       regDst_out   = 1'b1; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'bx; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0110; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	  
+	  
+	  
+	  {6'h0, 6'h2a}: //slt
+	    begin       
+	       regDst_out   = 1'b1; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'bx; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0111; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    
+	  {6'hd, 6'hx}: //ori
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b1; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0001; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'ha, 6'hx}: //slti
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b1; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0111; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h23, 6'hx}: //lw
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b1; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b1; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b1; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0010; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h2b, 6'hx}: //sw
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b1; //0 means REG and 1 means IMM
+	       memToReg_out = 1'bx; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b1; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0010; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h4, 6'hx}: //beq
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'bx; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b1; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0110; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h5, 6'hx}: //bne
+	    begin       
+	       regDst_out   = 1'b1; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'bx; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b1; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b1; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0110; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h2, 6'hx}: //j
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'bx; //0 means REG and 1 means IMM
+	       memToReg_out = 1'bx; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'bx; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b1; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'bx; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'bxxxx; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h0, 6'h8}: //jr
+	    begin       
+	       regDst_out   = 1'b1; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'bx; //0 means REG and 1 means IMM
+	       memToReg_out = 1'bx; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'bx; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b1; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'bx; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'bxxxx; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	    {6'h3, 6'hx}: //jal
+	    begin       
+	       regDst_out   = 1'b0; //0 means RT  and 1 means RD
+	       ALUSrc_out   = 1'b0; //0 means REG and 1 means IMM
+	       memToReg_out = 1'b0; //0 means NO  and 1 means YES
+	       regWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memWrite_out = 1'b0; //0 means NO  and 1 means YES
+	       memRead_out  = 1'b0; //0 means NO  and 1 means YES
+	       branch_out   = 1'b0; //0 means NO  and 1 means YES
+	       jump_out     = 1'b0; //0 means NO  and 1 means YES
+	       extCntrl_out = 1'b0; //0 means Zero-extension and 1 means Sign-extension
+	       ALUCntrl_out = 4'b0010; //Refer to table on page 316 of the book
+	    
+	    end // case: {6'hx, 6'hx}
+	    
+	  
+	  ///
+	  
+	  default:   //anything else
+	    begin		
+	       regDst_out   = 1'bx;
+               ALUSrc_out   = 1'bx;
+               memToReg_out = 1'bx;
+               regWrite_out = 1'bx;
+               memWrite_out = 1'bx;
+               branch_out   = 1'bx;
+               jump_out     = 1'bx;
+               extCntrl_out = 1'bx;
+               ALUCntrl_out = 4'bxxxx;
+	    end // case: default
+	  
+	endcase // casex({op_in, func_in})
+	
+	
+     end // always@ *
+      
+endmodule // MIPS_CONTROL
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