void
platform_setup_timer()
{
	/* set the number of cycles the timer counts before interrupting */
	/* 100 Mhz clock => .01us for 1 clk tick. For 100ms, 10000000 clk ticks need to elapse  */
	XTmrCtr_SetLoadReg(PLATFORM_TIMER_BASEADDR, 0, TIMER_TLR);

	/* reset the timers, and clear interrupts */
	XTmrCtr_SetControlStatusReg(PLATFORM_TIMER_BASEADDR, 0, XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );

	/* start the timers */
	XTmrCtr_SetControlStatusReg(PLATFORM_TIMER_BASEADDR, 0,
			XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK
			| XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);

#if XPAR_INTC_0_HAS_FAST == 1
	XIntc_RegisterFastHandler(XPAR_INTC_0_BASEADDR,
			PLATFORM_TIMER_INTERRUPT_INTR,
				(XFastInterruptHandler)xadapter_fasttimer_handler);
#else
	/* Register Timer handler */
	XIntc_RegisterHandler(XPAR_INTC_0_BASEADDR,
			PLATFORM_TIMER_INTERRUPT_INTR,
			(XInterruptHandler)xadapter_timer_handler,
			0);
#endif

	XIntc_EnableIntr(XPAR_INTC_0_BASEADDR, PLATFORM_TIMER_INTERRUPT_MASK);
}
//gpio_InstancePtr,dma_InstancePtr
void test_fir(XGpio* gpio_InstancePtr, XAxiDma* dma_InstancePtr) {
	u32 output_samples_hardware[256];
	u32 i;
	u8 rst_en = 1;
	u8 rst_disable = 0;
	u8 clk_en = 1;
	u8 clk_disable = 0;
	u8 output[NUMBER_OF_INSTANCES][NUMBER_OF_TLUTS_PER_INSTANCE][LUT_CONFIG_WIDTH];

	LUT_config_type lut_configs[NUMBER_OF_INSTANCES*NUMBER_OF_TLUTS_PER_INSTANCE];
	u32 group_sizes[NUMBER_OF_INSTANCES*NUMBER_OF_TLUTS_PER_INSTANCE+1] ={};

	u8 parameter[NUMBER_OF_PARAMETERS];


	u8 cdata1[] = {11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
			11,11,11,11,11,11};

	u8 cdata3[] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32};
	u8 input_samples[] = {240,15,240,15,240,15,240,240,15,240,15,240,15,240,240,15,240,15,240,15,240,240,15,240,15,240,15,240,240,15,240};
	void Start_Timer()
	{
	        XTmrCtr_SetLoadReg(XPAR_AXI_TIMER_0_BASEADDR,XPAR_AXI_TIMER_0_DEVICE_ID,0);
	        XTmrCtr_SetControlStatusReg(XPAR_AXI_TIMER_0_BASEADDR,XPAR_AXI_TIMER_0_DEVICE_ID,XTC_CSR_LOAD_MASK);
	        XTmrCtr_SetControlStatusReg(XPAR_AXI_TIMER_0_BASEADDR,XPAR_AXI_TIMER_0_DEVICE_ID,0x00);
	        XTmrCtr_Enable(XPAR_AXI_TIMER_0_BASEADDR,XPAR_AXI_TIMER_0_DEVICE_ID);
	}
Exemple #3
0
/**************************** Counter *******************************************/
void counter_initialize(){
 	//TIMER RESET CODE
	//Turn off the timer
	XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1, 0);
	//Put a zero in the load register
	XTmrCtr_SetLoadReg(XPAR_TMRCTR_0_BASEADDR, 1, 0);
	//Copy the load resister into the counter register
	XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1, XTC_CSR_LOAD_MASK);
	//Enable (start) the timer
	XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1,	XTC_CSR_ENABLE_TMR_MASK);
	//END TIMER RESET CODE
}
int opb_timer_init( void )
{
	// set the number of cycles the timer counts before interrupting
	XTmrCtr_SetLoadReg(PROFILE_TIMER_BASEADDR, 0, timer_clk_ticks);

	// reset the timers, and clear interrupts
	XTmrCtr_SetControlStatusReg(PROFILE_TIMER_BASEADDR, 0,
				     XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );

	// start the timers
	XTmrCtr_SetControlStatusReg(PROFILE_TIMER_BASEADDR, 0, XTC_CSR_ENABLE_TMR_MASK
			     | XTC_CSR_ENABLE_INT_MASK | XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);
	return 0;
}
Exemple #5
0
void init_network_timer_int()
{
	/* set the number of cycles the timer counts before interrupting */
	/* 100 Mhz clock => .01us for 1 clk tick. For 100ms, 10000000 clk ticks need to elapse  */
	XTmrCtr_SetLoadReg(XPAR_XPS_TIMER_0_BASEADDR, 0, TIMER_TLR);

	/* reset the timers, and clear interrupts */
	XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0, XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );

	/* start the timers */
	XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0,
			XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK
			| XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);

	/* Register Timer handler */
	XIntc_RegisterHandler(XPAR_INTC_0_BASEADDR,
			XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR,
			(XInterruptHandler)network_timer_handler,
			0);
}
Exemple #6
0
int main() {
	int numClockCycles = 0;
	Xil_ICacheEnable();
	Xil_DCacheEnable();
	print("---Entering main---\n\r");
	print("---Trial Name \t Trial # \t Clock Cycles---\n\r");
	int i = 0;
	// Extra Method contains an interrupt routine which is set to go off at timed intervals
    extra_method();


    for( i=0; i < NUMBER_OF_TRIALS; i++) {
     	//TIMER RESET CODE
 		//Turn off the timer
 		XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1, 0);
 		//Put a zero in the load register
 		XTmrCtr_SetLoadReg(XPAR_TMRCTR_0_BASEADDR, 1, 0);
 		//Copy the load register into the counter register
 		XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1, XTC_CSR_LOAD_MASK);
 		//Enable (start) the timer
 		XTmrCtr_SetControlStatusReg(XPAR_TMRCTR_0_BASEADDR, 1,	XTC_CSR_ENABLE_TMR_MASK);
 		//END TIMER RESET CODE

 		//blinkLED(int numberOfBlinks);
		//offLED();
		//onLED();
		//sevenSegment();
		//printLongerStrings(); // Write this function
		//printShortStrings(); // Write this function
		//printfShortStrings(); // Write this function
		//xil_printfShortStrings(); // Write this function
		//intAddAndMultiply(); // Write this function
		//floatAddAndMultiply(); // Write this function


 		numClockCycles = XTmrCtr_GetTimerCounterReg(XPAR_TMRCTR_0_BASEADDR, 1);
 		xil_printf("print  \t%d\t%d\n", i,numClockCycles );

    }
    return 0;
}
Exemple #7
0
void init_display_timer_int()
{
	// Set timer speed
	XTmrCtr_SetLoadReg(XPAR_XPS_TIMER_1_BASEADDR, 0, TIMER_DISPLAY_TLR);

	/* reset the timers, and clear interrupts */
	XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_1_BASEADDR, 0, XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );

	/* start the timers */
	XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_1_BASEADDR, 0,
			XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK
			| XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);

	/* Register Timer handler */
	XIntc_RegisterHandler(XPAR_INTC_0_BASEADDR,
			XPAR_XPS_INTC_0_XPS_TIMER_1_INTERRUPT_INTR,
			(XInterruptHandler)display_timer_handler,
			0);

	timer_display_proc = 0;
}
int main (void)
{
   XGpio dip;
   int dip_check;


   static XPs2 Ps2Inst;
   XPs2_Config *ConfigPtr;
   u32 StatusReg;
   u32 BytesReceived;
   u8 RxBuffer;
   int key_count=0;
   int i;

   status=PVP;
   int x_cur=7, y_cur=7, x_pos=0, y_pos=0;

   XGpio_Initialize(&dip, XPAR_DIP_SWITCHES_8BITS_DEVICE_ID);
   XGpio_SetDataDirection(&dip, 1, 0xffffffff);

   ConfigPtr = XPs2_LookupConfig(XPAR_XPS_PS2_0_0_DEVICE_ID);
   XPs2_CfgInitialize(&Ps2Inst, ConfigPtr, ConfigPtr->BaseAddress);

   XIntc_RegisterHandler(XPAR_XPS_INTC_0_BASEADDR,
   		                 XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR,
                         (XInterruptHandler) timer_int_handler,
                         (void *)XPAR_XPS_TIMER_0_BASEADDR);

   XIntc_MasterEnable(XPAR_XPS_INTC_0_BASEADDR);
   XIntc_EnableIntr(XPAR_XPS_INTC_0_BASEADDR, 0x1);

   XTmrCtr_SetLoadReg(XPAR_XPS_TIMER_0_BASEADDR, 0, 333333);

   XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0, XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );

   XIntc_EnableIntr(XPAR_XPS_TIMER_0_BASEADDR, XPAR_XPS_TIMER_0_INTERRUPT_MASK);

   XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0, XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK |
     						XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);

   microblaze_enable_interrupts();

   InitializeGame(x_cur, y_cur);status=PVP;

   xil_printf("-- Game Starts! --\r\n");
   xil_printf("\r\nHuman Player's turn!\r\n");

   int vga_input;
   vga_input=(0<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(1<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(2<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(3<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(4<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(5<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(6<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(7<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(8<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(0<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

   vga_input=(0<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(1<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(2<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(3<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(4<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(5<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(6<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(7<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(8<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

     vga_input=(0<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(1<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(2<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(3<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(4<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(5<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(6<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(7<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(8<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
     vga_input=(9<<24)+(29<<16)+(1<<8)+3;
     VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

   vga_input=(0<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(1<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(2<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(3<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(4<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(5<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(6<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(7<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(8<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

   vga_input=(9<<24)+(1<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(2<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(3<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(4<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(5<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(6<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(7<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(8<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(9<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(10<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

   vga_input=(9<<24)+(11<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(12<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(13<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(14<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(15<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(16<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(17<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(18<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(19<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(20<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);

   vga_input=(9<<24)+(21<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(22<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(23<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(24<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(25<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(26<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(27<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(28<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(29<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
   vga_input=(9<<24)+(30<<16)+(1<<8)+3;
   VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);


   while (1)
   {
	  if (turn==HUMAN_PLAYER || (turn==COMPUTER_PLAYER && status==PVP)) {
		  do {
			  if (turn==COMPUTER_PLAYER && status==PVC)
			  	  break;
		      dip_check=XGpio_DiscreteRead(&dip, 1);
	          StatusReg = XPs2_GetStatus(&Ps2Inst);
	      }while((StatusReg & XPS2_STATUS_RX_FULL) == 0);
	      BytesReceived = XPs2_Recv(&Ps2Inst, &RxBuffer, 1);
	      key_count=(key_count+1)%3;
	      if (key_count==0) {
	    	  if (RxBuffer==0x21&& win_flag==0) {
	    		  DrawNumber(level,3,2,EMPTY);

	    		  if(level==1)
	    			  level=2;
	    		  else
	    			  level=1;

	    		  if(status==PVC )
	    		  DrawNumber(level,3,2,0);
	    		  else if(status==CVP)
			      DrawNumber(level,3,2,1);
	    		  else
	    		  DrawNumber(level,3,2,EMPTY);

	    	  }
		      if (RxBuffer==0x1D && win_flag==0) {
			      EraseCursor(x_cur, y_cur);
		          if (y_cur<=0)
		    	      y_cur=14;
		          else
		    	      y_cur--;
		          DrawChess(x_cur, y_cur, CURSOR);
		      }
		      if (RxBuffer==0x1B && win_flag==0) {
		  	      EraseCursor(x_cur, y_cur);
		  	      if (y_cur>=14)
		  	          y_cur=0;
		  	      else
		  	          y_cur++;
		  	      DrawChess(x_cur, y_cur, CURSOR);
		      }
		      if (RxBuffer==0x1C && win_flag==0) {
		  	      EraseCursor(x_cur, y_cur);
		  	      if (x_cur<=0)
		  	          x_cur=14;
		  	      else
		  		      x_cur--;
		  	      DrawChess(x_cur, y_cur, CURSOR);
		      }
		      if (RxBuffer==0x23 && win_flag==0) {
		  	      EraseCursor(x_cur, y_cur);
		  	      if (x_cur>=14)
		  	          x_cur=0;
		  	      else
		  		      x_cur++;
		  	      DrawChess(x_cur, y_cur, CURSOR);
		      }
		      if (RxBuffer==0x5A && win_flag==0) {
		    	  DrawBack(3,1119,EMPTY);
			      if (board_state[x_cur][y_cur]==EMPTY) {

			  	      if(status==CVP)
				      DrawChess(x_cur, y_cur, 1-turn);
			  	      else
			  	      DrawChess(x_cur, y_cur, turn);

				      board_state[x_cur][y_cur]=turn;
				      board_record[BackTimes].x=x_cur;
				      board_record[BackTimes].y=y_cur;
				      BackTimes++;
				      count=0;
				      time0=0;
				      if (turn==COMPUTER_PLAYER)
				    	  step_flag=1;
				      if (CheckWin(x_cur,y_cur,turn)==1) {
					      xil_printf("\r\nHuman Player wins!\r\n");
					      win_flag=1;
					      DrawWinning(0, 1, EMPTY);
					      if(status==CVP)
						      DrawWinning(0, 1, 1-turn);
					      else
					          DrawWinning(0, 1, turn);
				      }
				      if (CheckBan(x_cur,y_cur,turn)==1){
				    	  xil_printf("\r\nComputer Player wins!\r\n");
				    	  win_flag=1;
				    	  DrawWinning(0, 1, EMPTY);
					      if(status==CVP)
						      DrawWinning(0, 1, turn);
					      else
					          DrawWinning(0, 1, 1-turn);
				      }
				      else {
				    	  if (turn==HUMAN_PLAYER)
				    		  turn=COMPUTER_PLAYER;
				    	  else
				    		  turn=HUMAN_PLAYER;
				          xil_printf("\r\nComputer Player's turn!\r\n");
				      }
			      }
			  }
		      if (RxBuffer==0x29 && turn==HUMAN_PLAYER && win_flag==0) {
		    	  count=0;time0=0;

		    	  if (status==PVP) {
			    	  x_cur=7;
			    	  y_cur=7;
			    	  for (i=0; i<256; i++) {
			    	  		board_record[i].x=0;
			    	  	    board_record[i].y=0;
			    	  			  }
				      InitializeGame(x_cur, y_cur);status=PVP;
		    		  DrawStatus(1, 21, EMPTY,status);
		    		  status=PVC;
		    		  DrawNumber(level,3,2,0);
		    		  DrawStatus(1, 21, COMPUTER_PLAYER,status);
		    	  }
		    	  else if(status==PVC) {
			    	  x_cur=7;
			    	  y_cur=7;
			    	  for (i=0; i<256; i++) {
			    	  		board_record[i].x=0;
			    	  	    board_record[i].y=0;
			    	  			  }
				      InitializeGame(x_cur, y_cur);status=PVP;
		    		  DrawStatus(1, 21, EMPTY,status);
		    		  status=CVP;
		    		  DrawNumber(level,3,2,1);
		    		  DrawStatus(1, 21, COMPUTER_PLAYER,status);
		    		  turn=COMPUTER_PLAYER;
		    	  }
		    	  else if(status==CVP) {
			    	  x_cur=7;
			    	  y_cur=7;
			    	  for (i=0; i<256; i++) {
			    	  		board_record[i].x=0;
			    	  	    board_record[i].y=0;
			    	  			  }
				      InitializeGame(x_cur, y_cur);status=PVP;
		    		  DrawStatus(1, 21, EMPTY,status);
		    		  status=PVP;
		    		  DrawStatus(1, 21, COMPUTER_PLAYER,status);
		    	  }
		      }
		      if (RxBuffer==0x76) {
		    	  x_cur=7;
		    	  y_cur=7;
		    	  for (i=0; i<256; i++) {
		    	  		board_record[i].x=0;
		    	  	    board_record[i].y=0;
		    	  			  }
			      InitializeGame(x_cur, y_cur);status=PVP;
		      }
		      if (RxBuffer==0x2D) {
		      	  if(BackTimes>0){
		      		BackTimes--;
		      	  	x_cur=board_record[BackTimes].x;
		      	  	y_cur=board_record[BackTimes].y;
		      	  	board_state[x_cur][y_cur]=EMPTY;
		      	  	DrawChess(x_cur,y_cur,EMPTY);
		      	  	turn=1-turn;
		      	  	if(status==PVC)
		      	  	{
		      	  	BackTimes--;
		      	  	x_cur=board_record[BackTimes].x;
		      	  	y_cur=board_record[BackTimes].y;
		      	  	board_state[x_cur][y_cur]=EMPTY;
		      	  	DrawChess(x_cur,y_cur,EMPTY);
		      	  	turn=HUMAN_PLAYER;
		      	  	}
		      	    DrawBack(3,1119,turn);
		      	  					      }
		      	  				  		  }
	      }
	  }

	  if (turn==COMPUTER_PLAYER && (status==PVC ||status==CVP )&& win_flag==0) {
	      if (step_flag==0) {
	  		  if (x_cur-1<0)
	  			  x_pos=x_cur+1;
	  		  else
	  			  x_pos=x_cur-1;
	  		      y_pos=y_cur;
	  		      step_flag=1;
	      }
	  	  else {
	  		  if(level==2||level==3){
	  		  EvaluateComputerMove(board_state, 0, MIN_INFINITY, MAX_INFINITY, 0, 0);
	  		  x_pos=maxMoveX;
	  		  y_pos=maxMoveY;
	  		  xil_printf("\r\n computer \r\n");}
	  		  else
	  		  {
		  	  everyScore(Computer);
		  	  current_pos=best(Computer);
	  		  x_pos=current_pos.y;
	  		  y_pos=current_pos.x;
	  		  xil_printf("\r\n computer \r\n");
	  		  }

	  	  }
  	      xil_printf("\r\n%x, %x\r\n", x_pos, y_pos);

  	      if(status==CVP)
	      DrawChess(x_pos, y_pos, 1-turn);
  	      else
  	      DrawChess(x_pos, y_pos, turn);


	  	  board_state[x_pos][y_pos]=COMPUTER_PLAYER;
	  	  board_record[BackTimes].x=x_pos;
  		  board_record[BackTimes].y=y_pos;
  		  BackTimes++;

	  	  count=0;
	  	  time0=0;
	      if (CheckWin(x_pos, y_pos, turn)) {
	  	      xil_printf("\r\nComputer Player wins!\r\n");
	  	      win_flag=1;
	  	      DrawWinning(0,1, EMPTY);
	  	      if(status==CVP)
	  	    	  DrawWinning(0,1, 1-turn);
	  	      else
	  	    	  DrawWinning(0,1, turn);
	  	      turn=HUMAN_PLAYER;
	  	  }
	      else {
	    	  turn=HUMAN_PLAYER;
	    	  xil_printf("\r\nHuman Player's turn!\r\n");
	      }
	  }
   }
   return 0;
}