Question

write the function of the following unit in 8085 microprocessor

Accumulator

stack pointer

instruction decoder

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Answer 1

Answer:

stack pointer

stack is linear data structure. stack is primitive data structure. stack is LIFO property Last in first out. for example washing plates, coins, books.

stack pointer which is delete and insert means push and pop on top pointer of stack.

there is 8085 microprocessor pointer stack.

Answer 2

Explanation:

Accumulator:-

It is an 8-bit resistor. It is used to store 8-bit data. The arithmetic logic operation result are store in accumulator

stack pointer

It is 8 bit register consisting of address if memory location called stack. stack is read/write memory used for temperary storage

Instruction decoder

This unit interprit the contact of register it determine the exact step followed in exicuting the entire instruction direct to the control section