Fill in the mask and operation to perform the masking operation called for a) Fo

Question

Fill in the mask and operation to perform the masking operation called for

a) Force bit 3 high PORTB __=   ___________;    

b) Force bit 1 low PORTB __=   ___________;     

c) Force bit 5 high PORTB __=   ___________;     

d) Toggle bit 6 PORTB __=   ___________;

For what values of the integer k, will the function "Test" execute?

e)    if( k ) {         // Will execute if k ______________________     Test(); }   

f) if( k > 5 && k < 10) {         // Will execute if k ______________________     Test(); }  

g)    if( k & 0x0020) {         // Will execute if bit ____ in k is a ____     Test();

Explanation / Answer

Assumption is bit counting starts from 0 (LSB)


a) Force bit 3 high PORTB __=   ___________; PORTB |= 1<<3   

b) Force bit 1 low PORTB __=   ___________;   PORTB &= ~(1 << 1);

c) Force bit 5 high PORTB __=   ___________; PORTB |= 1<<5   

d) Toggle bit 6 PORTB __=   ___________; PORTB ^= 1 << 6;

For what values of the integer k, will the function "Test" execute?

e)    if( k ) {         // Will execute if k _____is not equal to 0_________________     Test(); }   

f) if( k > 5 && k < 10) {         // Will execute if k _____if k is greater than 5 and less than 10_______     Test(); }

g)    if( k & 0x0020) {         // Will execute if bit __5__ in k is a _high___     Test();

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