#include "defs.h"

int main(void) {
    uint8_t val = 0;
#ifdef DDRA
    DDRA = PORTA_MASK;
#endif
#ifdef DDRB
    DDRB = PORTB_MASK;
#endif
#ifdef DDRC
    DDRC = PORTC_MASK;
#endif
#ifdef DDRD
    DDRD = PORTD_MASK;
#endif
#ifdef DDRE
    DDRE = PORTE_MASK;
#endif
#ifdef DDRF
    DDRF = PORTF_MASK;
#endif
#ifdef DDRG
    DDRG = PORTG_MASK;
#endif
#ifdef DDRH
    DDRH = PORTH_MASK;
#endif
    for (;;) {
        for (uint8_t i = 0; i < PORTN_MAX; ++i) {
            val ^= _BV(i);
#ifdef DDRA
            PORTA = val&PORTA_MASK;
#endif
#ifdef DDRB
            PORTB = val&PORTB_MASK;
#endif
#ifdef DDRC
            PORTC = val&PORTC_MASK;
#endif
#ifdef DDRD
            PORTD = val&PORTD_MASK;
#endif
#ifdef DDRE
            PORTE = val&PORTE_MASK;
#endif
#ifdef DDRF
            PORTF = val&PORTF_MASK;
#endif
#ifdef DDRG
            PORTG = val&PORTG_MASK;
#endif
#ifdef DDRH
            PORTH = val&PORTH_MASK;
#endif
            _delay_ms(41);
        }
    }
}