stackreverse.asm

%include "asm_io.asm"
global main

segment .data
msg db "Enter number (-1 to stop):", 0
msg_out db "Reversed numbers:", 0

segment .text
main:

    mov ebp, esp ; snapshot the stack pointer before any pushes

READ_LOOP:
    mov eax, msg
    call print_string
    call print_nl

    call read_int

    cmp eax, -1
    je DISPLAY

    push eax ; push number, ESP decreases by 4
    jmp READ_LOOP

DISPLAY:
    mov eax, msg_out
    call print_string
    call print_nl

POP_LOOP:
    cmp esp, ebp ; if ESP is back to the snapshot, stack is empty
    je END

    pop eax ; pop number, ESP increases by 4
    call print_int
    call print_nl

    jmp POP_LOOP

END:
    mov eax, 1
    mov ebx, 0
    int 0x80