// Located in: microblaze_0/include/xparameters.h
#include "xparameters.h"
#include "stdio.h"
#include "xbasic_types.h"
#include "gpio_header.h"

//====================================================

int main (void) {

   Xuint32 status, *customLogicPtr;
   Xuint32 data,data1,data2,result;
   int a = 0xFFFFFFFF, b = 0x00000001, c = 0x999999, i=0;

   print("Software Test Data\r\n");
   c=a+b;
   xil_printf("%d + %d = %d \r\n", a,b,c);
   xil_printf("%x + %x = %x \r\n\n", a,b,c);
   print("-- Entering main() --\r\n\n");
   do{
         // read a new 8-bit values from dip switches and signal to accept the new number for addition with the 3 push buttons
	 do{
	      status = GpioInputExample(XPAR_PUSH_BUTTONS_3BIT_DEVICE_ID, &data);
	      status = GpioInputExample(XPAR_DIP_SWITCHES_8BIT_DEVICE_ID, &data1);
  	 }while(data == 0);
	 for(i=0; i <= 0x1FFFF; i++) { ; }	
		
	 xil_printf("Data read from Push_Buttons_3Bit: 0x%x\r\n", data);
	 xil_printf("Data read from DIP_Switches_8Bit: 0x%x\r\n", data1);
	 // loop for delay for time to release switch and debounce

	 a = data;
	 b = data1;

	 // write values to software addressable register 0 and register 1
	 customLogicPtr = (Xuint32 *)XPAR_CUSTOM_LOGIC_ADDER_0_BASEADDR;
         *(customLogicPtr) = a;       // send variable a to register 0 of custom logic
	 *(customLogicPtr + 0x1) = b; // send variable b to register 1 of custom logic
	 c = *(customLogicPtr + 0x2);

		 
	 print("Custom Logic\r\n");
	 xil_printf("%d + %d = %d \r\n", a,b,c);
	 xil_printf("%x + %x = %x \r\n\n", a,b,c);

	 // do MicroBlaze addition and display on RS232 terminal
         print("Software\r\n");
         c=a+b;
	 xil_printf("%d + %d = %d \r\n", a,b,c);
	 xil_printf("%x + %x = %x \r\n\n", a,b,c);

   }while(1); // continues for ever to get user input
   print("-- Exiting main() --\r\n");
   return 0;
}