Multiple choice

In 8085 which of the following modifies the program counter?

  1. Only PCHL instruction

  2. Only ADD instructions

  3. Only JMP and CALL instructions

  4. All instructions
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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.

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