944 B
944 B
| id | title | tags | created | |
|---|---|---|---|---|
| 1fig | Stack_memory |
|
Tuesday, April 16, 2024 |
Stack memory
Along with heap memory, programs make use of stack memory during the runtime of programs.
Stack memory
Similarly to the Stacks, it works on the basis of LIFO: the last item put on the stack is the first item to be withdrawn.
Note, this doesn't mean that the data at the memory addresses that comprise the stack can only be accessed in a LIFO manner. Any item currently on the stack can be accessed (be read or modified) at any time. LIFO applies when it is is time to clear memory from the stack: the most recent addition is cleared first from the top down.
Stack pointer
A stack pointer is used to manage the items in the stack. This value is stored in a CPU_architecture#registers and its value is the memory address of the item currently on the top of the stack.