section .text
global _start

section .data
msg db 'fizzbuzz'
len equ $ - msg
nl db 0x0a

_start:
    mov r9, 1

loop:
    mov r10, msg
    mov r11, 0
    mov r12, 0
    mov rcx, 1

mod:
    add rcx, 2
    cmp rcx, 7
    je is_n

    mov rdx, 0
    mov rax, r9
    div rcx

    cmp dl, 0
    jne not_mod

    add r11, 4
    jmp mod

not_mod:
    sub r10, r11
    add r10, 4
    jmp mod

is_n:
    cmp r11, 0
    jne print

append_unsigned:
    mov rax, r9

    mov rcx, 10
    mov r8, 0
append_digit:
    mov rdx, 0
    div rcx
    add r8b, '0'
    add r8b, dl
    shl r8, 8
    cmp rax, 0
    jne append_digit
    push r8
    mov r10, rsp
    mov r11, 8
    mov r12, 8

print:
    mov eax, 1
    mov edi, 1
    mov rsi, r10
    mov rdx, r11
    syscall
    add rsp, r12

    mov eax, 1
    mov edi, 1
    mov rsi, nl
    mov rdx, 1
    syscall

    inc r9
    cmp r9, 100
    jle loop

exit:
    mov eax, 60
    mov edi, 0
    syscall