(* I am fed up of runtime (assembly-linkage) parameters sprinkled 
 * all over the back end.
 *)
structure X86Runtime = struct
  val numVregs = (* 24 *) 18

  (* stack offsets *)
  val vFpStart = 184			(* floating point registers  *)
  val vregStart = 72			(* virtual regs *)
  val regStart = 40			(* area for physcial registers *)
  val spillStart = 512			(* spill area *)
  val spillAreaSz = X86Spec.spillAreaSz
end

<script type="text/javascript">//<![CDATA[
		function toggle_ffErrors() {
			var errorsblock = document.getElementById("ffErrorsBlock");
			var errorsgroup = document.getElementById("ffErrors");
			if (errorsblock.style.display == "none") {
				errorsblock.style.display = "block";
				errorsgroup.style.right = "10px";
			} else {
				errorsblock.style.display = "none";
				errorsgroup.style.right = "300px";
			}
		}
//]]></script>
<div id="ffErrors">
<a href="javascript:toggle_ffErrors();">Click to toggle</a>
<div id="ffErrorsBlock">
	<div class="error">does not end with &lt;/html&gt; tag</div>
	<div class="error">does not end with &lt;/body&gt; tag</div>
	<div class="info">The output has ended thus: l registers *)
  val spillStart = 512			(* spill area *)
  val spillAreaSz = X86Spec.spillAreaSz
end</div>
</div></div>
</body></html>