// show the use of math operators (+, - , *, /, %) #include <avr/io.h> // standa

Question

// show the use of math operators (+, - , *, /, %)

#include <avr/io.h> // standard AVR header file for IO ports

int main ()

{

init();

unsigned char a = 2; // can hold 0-255

unsigned char b = 4; //

DDRB = 0xFF; // PORTB is output (B5...B0)

while( 1) // loop forever

{

// addition

PORTB = a + b; // show result on portB

delay (5000); // show result for 5 sec

// subtraction b> a

PORTB = b-a;

delay(5000);

// subtraction b < a

PORTB = a -b;

delay(5000);

// multiplication

PORTB = a * b;

delay(5000);

// division

PORTB = a/b;

delay(5000);

// division

PORTB = b/a;

delay(5000);

// modulo

PORTB = b % a;

delay(5000);

// modulo

PORTB = a%b; // show result on portB

delay(5000); // show result for 5 sec

}

}

Explanation / Answer

At port B it shows addition of a &b for 5secs and later checks for a>b or not.If greater calculate a-b or b-a and for 5secs.similarly multiplication of a&b for 5 secs and division (quotient for 5 secs) and remainder for 5 secs.

please specify exact question.It is not clear

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