Which instruction decrements and jumps if not zero? (i) DJNZ (ii) AJMP

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Module 3: Instruction Set and Programming

20252m

Which instruction decrements and jumps if not zero?

(i) DJNZ
(ii) AJMP
(iii) CJNE
(iv) NOP

Worked SolutionAI Assisted

Answer: (i) DJNZ

Explanation: DJNZ = Decrement and Jump if Not Zero: DJNZ direct/Reg, rel → decrement operand; if result ≠0 jump. AJMP is absolute jump, CJNE is compare and jump if not equal, NOP is no operation.

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