INC - x86-64 instruction reference

incIncrement by 1 
Adds 1 to the operand and stores the result there, leaving the carry flag unchanged.
8086 and later·takes lock
Intel's reference: INC 
Used in The x86-64 instruction setx86-64 assembly
Loopsx86-64 assembly
Arithmetic, logic and bitsx86-64 assembly
Arrays, strings and the string instructionsx86-64 assembly
Floating point and the x87 stackx86-64 assembly
Fill an array with the numbers from 1 to 10x86-64 assembly
The largest elementx86-64 assembly
Length of a stringx86-64 assembly
Reverse a string in placex86-64 assembly
Even or odd, count the set bits, multiply by shiftingx86-64 assembly
 
CFPFAFZFSFDFOF –●●●●–●
● set from the result
– not changed
Forms  inc  8163264 
Operands r/m A general-purpose register or memory location matching the operation’s size, for example rax or qword [rbp-8]. The byte registers ah, bh, ch and dh cannot be used with a REX prefix, including when the memory address uses r8–r15. 
It does not affect the carry
flag: to affect the carry flag, use ADD something,1. INC affects all the other flags according to the result.
This instruction can be used with a LOCK prefix to allow atomic execution.
See also DEC.
 global _start

section .text
_start:
        mov rax, 12
        mov rbx, 5
        mov rcx, 3
        mov rsi, 9

        inc rax

        mov rax, 60         ; syscall 60: exit
        xor rdi, rdi
        syscall