📝 Progams on addition and subtraction in 8085 Microprocessor

Q1. What is the hexadecimal opcode for the 8085 LDA instruction that loads the accumulator from a memory address?

💡 Difficulty: easy | ✅ Correct: A

Q2. Which register pair is targeted by the LXI instruction when loading a 16‑bit immediate value?

💡 Difficulty: medium | ✅ Correct: C

Q3. In a program that adds two 8‑bit numbers stored at 2000H and 2001H and stores the 9‑bit result at 2002H and 2003H, why is it necessary to use the RRC instruction after the addition?

💡 Difficulty: hard | ✅ Correct: D