al capital <code>A</code> in this list, so <code>AADCB</code>
represents the <code>ADCB</code> (add carry byte) instruction.
The enumeration is in alphabetical order, plus some late additions (<code>AXXX</code> occupies
the zero slot as an invalid instruction).
The sequence has nothing to do with the actual encoding of the machine instructions.
Again, the linker takes care of that detail.
</p>

<p>
One detail evident in the examples from the previous sections is that data in the instructions flows from left