Master servo control(three modes)

#include <mega32a.h>
#include <delay.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <spi.h>
#define MAX         10
#define MAXANGLE    1999
#define MINANGLE    999
#define MOTOR_PLUS  0x01
#define MOTOR_MINUS 0x02
struct cmd //command struct
{
    char str[MAX], num[MAX];
    int i;
} cmd, *cmdptr;
volatile unsigned char mode;
interrupt [EXT_INT0] void ext_int0_isr(void)
{
// Place your code here
        if(mode++ >= 2)
            mode = 0;
        printf("%d",mode);
}

interrupt [TIM0_COMP] void timer0_comp_isr(void)
{
        //these are the states of the automatic mode they are drove by counter 0
        static unsigned int OCR1Avar = 1499;
        static unsigned char state = 1;
        static unsigned char count = 0;
        count++;
        if(!mode)
        {

                if(count >= 10)
                {
                        switch(state)
                        {
                        case 1:
                                if(OCR1A++ < MAXANGLE);
                                else
                                        state = 2;
                        break;
                        case 2:
                                if(OCR1B++ < MAXANGLE);
                                else
                                        state = 3;
                        break;
                        case 3:
                                if(OCR1Avar++ <= MAXANGLE)
                                        spi(MOTOR_PLUS);
                                else
                                        state = 4;
                        break;
                        case 4:
                                if(OCR1B-- > MINANGLE);
                                else
                                        state = 5;
                        break;
                        case 5:
                                if(OCR1A-- > MINANGLE);
                                else
                                        state = 6;
                        break;
                        case 6:
                                if(OCR1B++ < MAXANGLE);
                                else
                                        state = 7;
                        break;
                        case 7:
                                if(OCR1Avar-- >= MINANGLE)
                                        spi(MOTOR_MINUS);
                                else
                                        state = 8;
                        break;
                        case 8:
                                if(OCR1B-- > MINANGLE);
                                else
                                        state = 1;
                        break;
                        }
                        count = 0;
                }
        }
}

void init()
{
    PORTA = 0x00;
    DDRA = 0xFF;
    PORTB = 0x00;
    DDRB = 0xB0;
    PORTC = 0xFE;
    DDRC = 0x01;
    PORTD = 0x04;
    DDRD = 0x30;

    TCCR0=0x09;
    TCNT0=0x00;
    OCR0=0x0F;
    TCCR1A=0xA2;
    TCCR1B=0x19;
    TCNT1H=0x00;
    TCNT1L=0x00;
    ICR1H=0x4E;
    ICR1L=0x1F;
    OCR1A = 1499;
    OCR1B = 1499;

    TIMSK=0x02;

    UCSRA=0x02;
    UCSRB=0b10011000;
    UCSRC=0x06;
    UBRRH=0x00;
    UBRRL=0x0C;

    ACSR=0x80;
    SFIOR=0x00;

    GICR|=0x40;
    MCUCR=0x02;
    MCUCSR=0x00;
    GIFR=0x40;

    SPCR=0x50;
    SPSR=0x00;
}
void command_split(struct cmd* command)
{
    unsigned char i = 0;
    int c;
    while((c = getchar()) != EOF && c != ':' && i < MAX)
        command->str[i++] = c;
    command->str[i] = '\0';
    i = 0;
    while((c = getchar()) != EOF && i < MAX)
        command->num[i++] = c;
    command->num[i] = '\0';
    command->i = atoi(command->num);
}

void main(void)
{
    unsigned int Press_Conf = 0;
    cmdptr = &cmd; //command struct object assignment
    // Global enable interrupts
    #asm("sei")
    init();
    while (1)
    {
        // Place your code here

        if(mode == 1)
        {
            Press_Conf++;
            if(Press_Conf >= 200)
            {
                if(PINC.7 == 0)
                {
                    if(OCR1A < MAXANGLE)
                        OCR1A++;
                }
                else if(PINC.6 == 0)
                {
                    if(OCR1A > MINANGLE)
                        OCR1A--;
                }
                if(PINC.5 == 0)
                {
                    if(OCR1B < MAXANGLE)
                        OCR1B++;
                }
                else if(PINC.4 == 0)
                {
                    if(OCR1B > MINANGLE)
                        OCR1B--;
                }
                if(PINC.3 == 0)
                {
                    spi(0x01);
                }
                else if(PINC.2 == 0)
                {
                    spi(0x02);
                }
                Press_Conf = 0;
            }
        }//end of mode 1
        else if(mode == 2)
        {
            cmdptr = &cmd;
            command_split(cmdptr);
            if(!strcmpf(cmd.str,"nothing"))
                putchar('N');;
            else if(!strcmpf(cmd.str,"vertical"))
                puts(cmd.str);
            else if(strcmpf(cmd.str,"horzental"))
                puts(cmd.str);
            else if(!strcmpf(cmd.str,"grab"))
                puts(cmd.str);
        }   //end of mode 2
    }
}