How the 8086 processor's microcode engine works
Another really amazing article!<p>I had a few questions:<p>Does a CPU&#x27;s decoder circuit connect directly to this ROM then? If so is it connection to the translation ROM?<p>The second question I had was regarding the the image used to demonstrate the CORD routine. What are the microinstructions that don&#x27;t have an address or a source and destination such as NCY, LRCY and RCY?<p>Lastly the author states:<p>&gt;&quot;Surprisingly, there&#x27;s no specific &quot;microcode decoder&quot; circuit. Instead, the logic is scattered across the chip, looking for various microcode bit patterns to generate control signals where they are needed.&quot;<p>Could you elaborate on this? What is meant by &quot;looking for various microcode bit patterns to generate control signals where they are needed&quot;? What exactly is the thing that is doing the looking here? I feel like this is an important point but I am unable to understand it.