What is the difference between Mnemonics and Opcode
<p>In assembly language under the instruction set of a 8085 microprocessor, suppose we have the following operation <code>ADD B</code>. <br>I know this means "<strong>Add the data of register of B to the Accumulator register and save the contents back to the Accumulator"</strong>.<br><br></p>

<ul>
<li><p>Here what is the mnemonic and what is the opcode.</p></li>
<li><p><code>ADD</code>(only ADD and not <code>ADD B</code>) is the opcode or the mnemonic ?</p></li>
<li>Internally mneomonics are converted to hexadecimal codes such as 3E, so here what
does this hexadecimal code refer to, <code>ADD</code> or <code>ADD B</code>.<br>
Kindly help.</li>
</ul>