Why normally LJMP instructions are the topmost lines of the ISR?
A. so as to jump to some other location where there is a wider space of memory available to write the codes
B. so as to avoid overwriting of other interrupt instructions
C. both of the mentioned
D. none of the mentioned
Answer:A
Why normally LJMP instructions are the topmost lines of the ISR?
A. so as to jump to some other location where there is a wider space of memory available to write the codes B. so as to avoid overwriting of other interrupt instructions C. both of the mentioned D. none of the mentioned
Explanation: There is a small space of memory present in the vector table between two different interrupts so in order to avoid overwriting of other interrupts we normally jump to other locations where a wide range of space is available.