INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Question
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It is also a 16-bit register, which is always incremented/decremented by 2 during push & pop operations.
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Stack pointer
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Temporary register
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Flag register
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Program counter
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Explanation:
Detailed explanation-1: -Stack Pointer: The 8085 microprocessor’s stack pointer is a 16-bit register that holds the address of the memory at the top of the stack. In a PUSH operation, the stack pointer’s value is decreased by 2. In POP operation, it will increase by two. Accumulator: There are 8 flip-flops in the register’s 8 bits.
Detailed explanation-2: -Stack Pointer is also a special purpose register that is used to point the location of the top of the stack. Since location is specified using 16 bits, the stack pointer is a 16-bit register.
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