#define SIGNAL __attribute__ ((signal))

/* Reset Vector */

#define RESET __vector_0

/* Interrupt Vector */

#define EXT_INT0 __vector_1
#define EXT_INT1 __vector_2
#define TIM1_CAPT __vector_3
#define TIM1_COMPA __vector_4
#define TIM1_COMPB __vector_5
#define TIM1_OVF __vector_6
#define TIM0_OVF __vector_7
#define SPI_STC __vector_8
#define UART_RXC __vector_9
#define UART_DRE __vector_10
#define UART_TXC __vector_11
#define ANA_COMP __vector_12

/* I/O Registers Base */
#define IO_BASE 0x20

/* Timer/Counter0 Control Register */
#define TCCR0 *((volatile unsigned char *) (IO_BASE + 0x33))

/* Timer/Counter1 Control Register B */
#define TCCR1B *((volatile unsigned char *) (IO_BASE + 0x2E))

/* PORTB, Data Register, Port B */
#define PORTB *((volatile unsigned char *) (IO_BASE + 0x18))

/* Data Direction Register, Port B */
#define DDRB *((volatile unsigned char *) (IO_BASE + 0x17))

/* PORTD, Data Register, Port D */
#define PORTD *((volatile unsigned char *) (IO_BASE + 0x12))

/* DDRD, Data Direction Register, Port D */
#define DDRD *((volatile unsigned char *) (IO_BASE + 0x11))
                                                                               
/* PIND, Input Pins, Port D */
#define PIND *((volatile unsigned char *) (IO_BASE + 0x10)) 

/* GIMSK, General Interrupt Mask Register */
#define GIMSK *((volatile unsigned char *) (IO_BASE + 0x3B))

/* SREG, Status Register */
#define SREG *((volatile unsigned char *) (IO_BASE + 0x3F))

/* Time/Counter Interrupt Mask Register  */
#define TIMSK *((volatile unsigned char *) (IO_BASE + 0x39)) 

/* MCU Control Register */
#define MCUCR *((volatile unsigned char *) (IO_BASE + 0x35))