assembly fibonacci

Here's an example of an assembly language code that calculates the Fibonacci sequence:

section .data
    fibSize db 10  ; Number of Fibonacci numbers to generate

section .bss
    fibNumbers resb 10  ; Array to store Fibonacci numbers

section .text
    global _start
    ; Initialize the first two Fibonacci numbers
    mov byte [fibNumbers], 0
    mov byte [fibNumbers + 1], 1

    ; Generate the rest of the Fibonacci numbers
    mov ecx, 2  ; Starting index for the next Fibonacci number
    cmp ecx, fibSize
    jge print_numbers

    ; Calculate the next Fibonacci number
    mov al, byte [fibNumbers + ecx - 1]
    add al, byte [fibNumbers + ecx - 2]
    mov byte [fibNumbers + ecx], al

    ; Increment the index
    inc ecx
    jmp generate_loop

    ; Print the Fibonacci numbers
    mov ecx, fibSize
    mov ebx, 1  ; File descriptor for stdout

    dec ecx
    mov al, byte [fibNumbers + ecx]
    add al, '0'  ; Convert the number to ASCII
    mov [esp], al
    mov eax, 4  ; System call number for write
    int 0x80  ; Call the kernel

    cmp ecx, 0
    jne print_loop

    ; Exit the program
    mov eax, 1  ; System call number for exit
    xor ebx, ebx  ; Exit with status 0
    int 0x80  ; Call the kernel

This assembly code generates the Fibonacci sequence and stores it in an array called fibNumbers. It starts with the first two numbers, 0 and 1, and then calculates the rest of the sequence by adding the previous two numbers. The code uses a loop to generate and store the Fibonacci numbers, and then another loop to print them out. Finally, the program exits.