How to covert int to hex type value and save it in a string?

RouterOS General
6

search tag # rextended int2hex num2hex integer number hexadecimal convert function

Function to convert integer to hex (only positive numbers)

:global num2hex do={
  :local number  [:tonum $1]
  :local hexadec "0"
  :local remainder 0
  :local hexChars "0123456789ABCDEF"
  :if ($number > 0) do={:set hexadec ""}
  :while ( $number > 0 ) do={
        :set remainder ($number % 16)
        :set number (($number-$remainder) / 16)
        :set hexadec ([:pick $hexChars $remainder].$hexadec)
  } 
  :if ([:len $hexadec] = 1) do={:set hexadec "0$hexadec"}
  :return "0x$hexadec"
}
:put [$num2hex 7366]

For simple 0-255 to hex:

:global numbyte2hex do={
    :local input [:tonum $1]
    :local hexchars "0123456789ABCDEF"
    :local convert [:pick $hexchars (($input >> 4) & 0xF)]
    :set convert ($convert.[:pick $hexchars ($input & 0xF)])
    :return $convert
}

the script here
https://forum.mikrotik.com/viewtopic.php?f=2&t=57665&p=868898#p295501
must be simply updated and converted on a function and work better than mine to convert for example integer to signed Single Word Hexadecimal value,
with “right” byte shift and “and 0xf” can convert easily -123 on 2 signed byte to 0xFF85
Probably a reverse-function can be writed based on that method.