What is the value of stack pointer after running the push instruction?
The stack pointer is left referring to a free byte, so the value just pushed is accessible at SP + 1.
Where is the stack pointer located?
They are the stack pointer, SP, and the program counter, PC. The Stack Pointer register will hold the address of the top location of the stack. And the program counter is a register always it will hold the address of the memory location from where the next instruction for execution will have to be fetched.
Does push move the stack pointer?
“push” and “pop” are implemented using the “stack pointer” to point to the most recently pushed value. On x86, the stack pointer is stored in the register called “rsp” (Register: Stack Pointer)….The Stack Pointer.
| Address | Contents | |
|---|---|---|
| reserved stack data | (main’s variables) | |
| 0xfff…fff | “high memory” |
When pop instruction is executed stack pointer is?
Discussion Forum
| Que. | In POP instruction, after each execution of the instruction, the stack pointer is |
|---|---|
| b. | decremented by 1 |
| c. | incremented by 2 |
| d. | decremented by 2 |
| Answer:incremented by 2 |
What is the content of stack pointer?
Discussion Forum
| Que. | What is the content of Stack Pointer (SP)? |
|---|---|
| b. | Address of the next instruction |
| c. | Address of the top element of the stack |
| d. | Size of the stack |
| Answer:Address of the top element of the stack |
What is the content of stack pointer 1 point?
What is the content of Stack Pointer (SP)?
| 1) | Address of the next instruction |
|---|---|
| 2) | Address of the current instruction |
| 3) | Size of the stack. |
| 4) | Address of the top element of the stack |
| 5) | NULL |
What is stack pointer in C?
A stack pointer is a small register that stores the address of the last program request in a stack. A stack is a specialized buffer which stores data from the top down. As new requests come in, they “push down” the older ones.
What is the importance of stack pointer?
Stack pointer holds the address of the last accupied memory location of the stack called stack pointer. It is used to save the contents of register if it is required during the execution of a program. It indicates which memory location onward the stack is vacent for further storage.
Is the stack pointer found in the RAM?
4 Answers. Stack is always in RAM. There is a stack pointer that is kept in a register in CPU that points to the top of stack, i.e., the address of the location at the top of stack.
What gets stored in heap vs stack?
Stack space is mainly used for storing order of method execution and local variables. Stack always stored blocks in LIFO order whereas heap memory used dynamic allocation for allocating and deallocating memory blocks.