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Asked: 2022-03-16T09:52:44+05:30 In:

Analyse and Identify the addressing mode in the following instructions: MOV A, B MVI, 05H LHLD, 3000H XCHG CMP B

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Analyse and Identify the addressing mode in the following instructions:

MOV A, B

MVI, 05H

LHLD, 3000H

XCHG

CMP B

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    2. I'M ADMIN

      a.MOV A, B:

      • register addressing mode
      • MOV is a mnemonic, which stands for “MOVe”. In this instruction 8-bit data value in register r2 will be moved to the 8-bit register r1.

       

      b.MVI, 05H: 

      • MVI is a mnemonic, which actually means “Move Immediate”. With this instruction,we can load a register with an 8-bitsor 1-Bytevalue.
      • immediate addressing mode

       

       

      c.LHLD, 3000H:

      • absolute addressing mode
      • LHLD is a mnemonic that stands for Load HL pair using Direct addressing from memory location whose 16-bit address is denoted as a16.

       

      d. XCHG:

      • implied addressing mode
      • XCHG, which stands for eXCHanGe. This is an instruction to exchange contents of HL register pair with DE register pair.

       

       

      e. CMP B:

      • implicit addressing mode
      • This instruction is used to compare contents of the Accumulator with given register R. The result of compare operation will be stored in the Temp register.

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