What is pop CS?

What is pop CS?

The Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server.

What is pop instruction?

Home » Instructions » POP. The POP instruction reads a byte from the address indirectly referenced by the SP register. The value read is stored at the specified address and the stack pointer is decremented. No flags are affected by this instruction.

What does Pop do in assembly?

The pop instruction removes the 4-byte data element from the top of the hardware-supported stack into the specified operand (i.e. register or memory location). It first moves the 4 bytes located at memory location [SP] into the specified register or memory location, and then increments SP by 4.

What is push & pop instructions?

pushing a value (not necessarily stored in a register) means writing it to the stack. popping means restoring whatever is on top of the stack into a register.

Which type of instruction is pop?

It occupies only 1-Byte in memory. POP D is an example instruction of this type. It is a 1-Byte instruction….Instruction type POP rp in 8085 Microprocessor.

What is difference between push and pop?

There are two basic operations that can be performed on a stack to modify its contents, which are called PUSH and POP. The main difference between PUSH and POP is what they do with the stack. PUSH is used when you want to add more entries to a stack while POP is used to remove entries from it.

Why push and pop instructions have to be paired?

At the end of the subroutine, you can pop the stored data off of the stack and then return control to the main program. Thus the important thing to know when using the stack is that pushes and pops have to be used in pairs because the stack is a LIFO data structure.

What is MOV instruction in assembly language?

The MOV instruction may have one of the following five forms − MOV register, register MOV register, immediate MOV memory, immediate MOV register, memory MOV memory, register. Please note that − Both the operands in MOV operation should be of same size. The value of source operand remains unchanged.

When pop instruction is executed?

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What is the difference between stack and array?

The diagrammatic representation of stack is given below: Array: An array is a collection of items stored at contiguous memory locations. The idea is to store multiple items of the same type together….Difference between Stack and Array Data Structures: