+ /* Pass 64bit return value to lisp land. */
+ move reg_NL0, v0 # reg_CFUNC
+ move reg_NL1, v1 # reg_NL4
+
+ /*
+ * Clear boxed descriptor registers before allowing an interrupt.
+ * We can't rely on C saving some of those registers, they might
+ * have been GCed in the meanwhile.
+ */