src = i.modes.immediate ? fetch_immediate() : regs[i.regc];
	src = i.modes.regc_deref ? mem[src] : src;
	if (src &gt; NUM_BIFS) {
	    fprintf(stderr, "Invalid bif: `%u'.\n", src);
	    return RB_FAIL;
	}
	bif f = biftable[src].f;
	f(regs, mem);
	break;
    }
/*    case RB_CFF:
	break;
*/
    default:
	free(mem);
	return RB_ILLEGAL;
	break;
    }
}
</pre>
</div>
</div>
</div>
</div>

<div id="outline-container-sec-5" class="outline-2">
<h2 id="sec-5">Building the VM</h2>
<div class="outline-text-2" id="text