et. It is basically a wrapper around the idea of a stack. The stack is
divided into a number of stack frames (<code class="mendoza-code">JanetStackFrame *</code> in C), each of
which contains information such as the function that created the stack frame,
the program counter for the stack frame, a pointer to the previous frame, and
the size of the frame. Each stack frame also is paired with a number of
registers.
</p>
<pre class="mendoza-codeblock"><code>X: Slot

X
X - Stack Top, for next function call.
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