--- microscheme/scheme.c	2015/11/30 13:07:34	1.48
+++ microscheme/scheme.c	2015/11/30 13:09:56	1.49
@@ -5675,7 +5675,11 @@
   int i, n = sizeof (dispatch_table) / sizeof (dispatch_table[0]);
   pointer x;
 
-  memset (SCHEME_V, 0, sizeof (*SCHEME_V));//TODO !iso c
+  /* this memset is not strictly correct, as we assume (intcache)
+   * that memset 0 will also set pointers to 0, but memset does
+   * of course not guarantee that. screw such systems.
+   */
+  memset (SCHEME_V, 0, sizeof (*SCHEME_V));
 
   num_set_fixnum (num_zero, 1);
   num_set_ivalue (num_zero, 0);