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The instruction, MOV AX,[BX] is an example of
- a)direct addressing mode
- b)register addressing mode
- c)register relative addressing mode
- d)register indirect addressing mode
Correct answer is option 'D'. Can you explain this answer?
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The instruction, MOV AX,[BX] is an example ofa)direct addressing modeb...
Since the register used to refer the address is accessed indirectly.
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The instruction, MOV AX,[BX] is an example ofa)direct addressing modeb...
Register Indirect Addressing Mode: MOV AX,[BX]
In computer architecture, there are different addressing modes used to access data from memory. One of the addressing modes is register indirect addressing mode, and the instruction MOV AX,[BX] is an example of it. Let's understand it in detail:
Definition of Register Indirect Addressing Mode
Register indirect addressing mode is a type of addressing mode in which the memory address is obtained by using the contents of a register. In other words, the address of the operand is stored in a register, and the content of that address is accessed from the memory.
Explanation of MOV AX,[BX]
The instruction MOV AX,[BX] is an example of register indirect addressing mode. Here, the memory address is obtained by using the contents of the BX register. The content of the memory address pointed by the BX register is then moved into the AX register.
Let's break down the instruction into its components:
- MOV: It is an instruction that moves data from one location to another.
- AX: It is a register that holds a 16-bit value.
- [BX]: It is an expression that represents the memory location pointed by the BX register.
Therefore, the instruction MOV AX,[BX] moves the 16-bit value stored in the memory location pointed by the BX register into the AX register.
Conclusion
In conclusion, the instruction MOV AX,[BX] is an example of register indirect addressing mode, where the memory address is obtained by using the contents of the BX register. The content of the memory address pointed by the BX register is then moved into the AX register.
In computer architecture, there are different addressing modes used to access data from memory. One of the addressing modes is register indirect addressing mode, and the instruction MOV AX,[BX] is an example of it. Let's understand it in detail:
Definition of Register Indirect Addressing Mode
Register indirect addressing mode is a type of addressing mode in which the memory address is obtained by using the contents of a register. In other words, the address of the operand is stored in a register, and the content of that address is accessed from the memory.
Explanation of MOV AX,[BX]
The instruction MOV AX,[BX] is an example of register indirect addressing mode. Here, the memory address is obtained by using the contents of the BX register. The content of the memory address pointed by the BX register is then moved into the AX register.
Let's break down the instruction into its components:
- MOV: It is an instruction that moves data from one location to another.
- AX: It is a register that holds a 16-bit value.
- [BX]: It is an expression that represents the memory location pointed by the BX register.
Therefore, the instruction MOV AX,[BX] moves the 16-bit value stored in the memory location pointed by the BX register into the AX register.
Conclusion
In conclusion, the instruction MOV AX,[BX] is an example of register indirect addressing mode, where the memory address is obtained by using the contents of the BX register. The content of the memory address pointed by the BX register is then moved into the AX register.
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The instruction, MOV AX,[BX] is an example ofa)direct addressing modeb)register addressing modec)register relative addressing moded)register indirect addressing modeCorrect answer is option 'D'. Can you explain this answer?
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