c3                   | (5)	RET	,
...
</pre>


<h3 id="symbols">Symbols</h3>

<p>
Some symbols, such as <code>PC</code>, <code>R0</code> and <code>SP</code>, are predeclared and refer to registers.
There are two other predeclared symbols, <code>SB</code> (static base) and <code>FP</code> (frame pointer).
All user-defined symbols other than jump labels are written as offsets to these pseudo-registers.
</p>

<p>
The <code>SB</code> pseudo-register can be thought of as the origin of memory, so the symbol <code>