title: easy way to get opcodes
body: <p>I know how to get the opcodes and the corresponding assembly syntax from an executable; however is there an easy way to get the opcodes of a particular assembly instruction alone, without writing a program using the same and then, manually linking and loading it and doing an objdump on the executable?</p>
  
  <p>Is there a simple way to find the corresponding opcodes of a particular instruction?</p>