Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > CJNE instruction makesa)the pointer to jump i...
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CJNE instruction makes
- a)the pointer to jump if the values of the destination and the source address are equal
- b)sets CY=1, if the contents of destination register is greater then that of the source register
- c)sets CY=0, if the contents of destination register is smaller then that of the source register
- d)none of the mentioned
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
CJNE instruction makesa)the pointer to jump if the values of the desti...
In CJNE command, the pointer jumps if the values of the two registers are not equal and it resets CY, if the destination address is larger then the source address and sets CY if the destination address is smaller then the source address.
Most Upvoted Answer
CJNE instruction makesa)the pointer to jump if the values of the desti...
The correct answer is option 'D' none of the mentioned.
Explanation:
The CJNE instruction, also known as Compare and Jump if Not Equal, is used in assembly language programming. This instruction compares the values of the destination and source addresses and performs a jump if they are not equal. Let's understand the options given and why they are incorrect:
a) The CJNE instruction does not make the pointer jump if the values of the destination and source addresses are equal. Instead, it performs the jump if they are not equal.
b) The CJNE instruction does not set CY (Carry) flag to 1 if the contents of the destination register are greater than that of the source register. The Carry flag is not affected by the CJNE instruction.
c) Similarly, the CJNE instruction does not set CY flag to 0 if the contents of the destination register are smaller than that of the source register. The Carry flag is not affected by the CJNE instruction.
d) The correct answer is option 'D' none of the mentioned. The CJNE instruction does not perform any of the mentioned actions.
The CJNE instruction is typically used in conditional branching, where the program flow is altered based on the result of the comparison. If the values are not equal, the jump is taken, and the program continues execution from the specified target address. If the values are equal, the jump is not taken, and the program continues execution from the next instruction.
It is important to note that the CJNE instruction is specific to the assembly language of a particular microprocessor or microcontroller. The behavior and syntax of the CJNE instruction may vary depending on the architecture and instruction set of the processor being used.
Explanation:
The CJNE instruction, also known as Compare and Jump if Not Equal, is used in assembly language programming. This instruction compares the values of the destination and source addresses and performs a jump if they are not equal. Let's understand the options given and why they are incorrect:
a) The CJNE instruction does not make the pointer jump if the values of the destination and source addresses are equal. Instead, it performs the jump if they are not equal.
b) The CJNE instruction does not set CY (Carry) flag to 1 if the contents of the destination register are greater than that of the source register. The Carry flag is not affected by the CJNE instruction.
c) Similarly, the CJNE instruction does not set CY flag to 0 if the contents of the destination register are smaller than that of the source register. The Carry flag is not affected by the CJNE instruction.
d) The correct answer is option 'D' none of the mentioned. The CJNE instruction does not perform any of the mentioned actions.
The CJNE instruction is typically used in conditional branching, where the program flow is altered based on the result of the comparison. If the values are not equal, the jump is taken, and the program continues execution from the specified target address. If the values are equal, the jump is not taken, and the program continues execution from the next instruction.
It is important to note that the CJNE instruction is specific to the assembly language of a particular microprocessor or microcontroller. The behavior and syntax of the CJNE instruction may vary depending on the architecture and instruction set of the processor being used.
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CJNE instruction makesa)the pointer to jump if the values of the destination and the source address are equalb)sets CY=1, if the contents of destination register is greater then that of the source registerc)sets CY=0, if the contents of destination register is smaller then that of the source registerd)none of the mentionedCorrect answer is option 'D'. Can you explain this answer?
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