C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino: In function 'void setup()':

GameBoy:16:3: error: 'DDRC' was not declared in this scope

   DDRC = 0x01;

   ^

GameBoy:17:3: error: 'PORTC' was not declared in this scope

   PORTC = 0x01;

   ^

GameBoy:18:3: error: 'DDRD' was not declared in this scope

   DDRD = 0x00;

   ^

GameBoy:19:3: error: 'PORTD' was not declared in this scope

   PORTD = 0x00;

   ^

GameBoy:20:3: error: 'DDRB' was not declared in this scope

   DDRB = 0x00;

   ^

GameBoy:21:3: error: 'PORTB' was not declared in this scope

   PORTB = 0xff;

   ^

GameBoy:22:11: error: 'PINB' was not declared in this scope

   oldPINB=PINB;

           ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino: In function 'void requestEvent()':

GameBoy:30:14: error: 'PINB' was not declared in this scope

   Wire.write(PINB);

              ^

GameBoy:10:23: error: 'PORTC' was not declared in this scope

 #define IRQ_1 Set_Bit(PORTC,0)

                       ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino:5:32: note: in definition of macro 'Set_Bit'

 #define Set_Bit(val, bitn)    (val |=(1<<(bitn)))

                                ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino:34:5: note: in expansion of macro 'IRQ_1'

     IRQ_1;

     ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino: In function 'void loop()':

GameBoy:40:6: error: 'PINB' was not declared in this scope

   if(PINB!=oldPINB)

      ^

GameBoy:11:23: error: 'PORTC' was not declared in this scope

 #define IRQ_0 Clr_Bit(PORTC,0)

                       ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino:6:33: note: in definition of macro 'Clr_Bit'

 #define Clr_Bit(val, bitn)     (val&=~(1<<(bitn)))

                                 ^

C:\Users\userrrr\Downloads\FACES-Firmware-master\FACES-Firmware-master\GameBoy\GameBoy.ino:44:5: note: in expansion of macro 'IRQ_0'

     IRQ_0;

     ^

exit status 1
'DDRC' was not declared in this scope

and here ino file

#include <Wire.h>

#define FACES_KEYBOARD_I2C_ADDR 0x08

#define Set_Bit(val, bitn)    (val |=(1<<(bitn)))
#define Clr_Bit(val, bitn)     (val&=~(1<<(bitn)))
#define Get_Bit(val, bitn)    (val &(1<<(bitn)) )
//KEY PORTB
//IRQ PC0
#define IRQ_1 Set_Bit(PORTC,0)
#define IRQ_0 Clr_Bit(PORTC,0)

unsigned char oldPINB=0;
void setup()
{
  DDRC = 0x01;
  PORTC = 0x01;
  DDRD = 0x00;
  PORTD = 0x00;
  DDRB = 0x00;
  PORTB = 0xff;
  oldPINB=PINB;
  Wire.begin(FACES_KEYBOARD_I2C_ADDR);
  Wire.onRequest(requestEvent);
}
unsigned char i = 0;
unsigned char temp = 0, hadPressed = 0;
void requestEvent()
{
  Wire.write(PINB);
  if (hadPressed == 1)
  {
    hadPressed = 0;
    IRQ_1;
  }

}
void loop()
{
  if(PINB!=oldPINB)
  {
    temp=PINB;
    oldPINB=temp;
    IRQ_0;
    hadPressed = 1;
  }
  /*
  if (PINB != 0xff)
  {
    switch(PINB)
    {
      case 0xFE:temp='U';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xFD:temp='D';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xFB:temp='L';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xF7:temp='R';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xEF:temp='A';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xDF:temp='B';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0xBF:temp='s';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
      case 0x7F:temp='S';while(PINB!=0xff)delay(1);IRQ_0;hadPressed = 1;break;
    }
  }*/
  delay(10);
}