In 8085, which of the following modifies the program counter?

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In 8085, which of the following modifies the program counter?

1. Only PCHL instruction
2. Only ADD instruction
3. JMP and CALL instruction
4. All instructions

Correct Option: D

Program counter is the register which has the next location of the program to be executed next. JMP & CALL changes the value of PC. PCHL instruction copies content of registers H & L to PC. ADD instruction after completion increments program counter. So program counter is modified in all cases. Hence (d) is correct option.