--- gforth/Attic/engine.c	1994/05/18 17:29:52	1.6
+++ gforth/Attic/engine.c	1994/08/25 15:25:21	1.12
@@ -1,5 +1,5 @@
 /*
-  $Id: engine.c,v 1.6 1994/05/18 17:29:52 pazsan Exp $
+  $Id: engine.c,v 1.12 1994/08/25 15:25:21 anton Exp $
   Copyright 1992 by the ANSI figForth Development Group
 */
 
@@ -17,13 +17,6 @@
 #include "forth.h"
 #include "io.h"
 
-#ifndef unlink
-	extern unlink(char *);
-#endif
-#ifndef ftruncate
-	extern ftruncate(int, int);
-#endif
-
 typedef union {
   struct {
 #ifdef BIG_ENDIAN
@@ -87,29 +80,7 @@ int emitcounter;
 
 static char* fileattr[6]={"r","rb","r+","r+b","w+","w+b"};
 
-#if ~defined(select) && defined(DOS)
-/* select replacement for DOS computers for ms only */
-void select(int n, int a, int b, int c, struct timeval * timeout)
-{
-   struct timeval time1;
-   struct timeval time2;
-   struct timezone zone1;
-
-   gettimeofday(&time1,&zone1);
-   time1.tv_sec += timeout->tv_sec;
-   time1.tv_usec += timeout->tv_usec;
-   while(time1.tv_usec >= 1000000)
-     {
-	time1.tv_usec -= 1000000;
-	time1.tv_sec++;
-     }
-   do
-     {
-	gettimeofday(&time2,&zone1);
-     }
-   while(time2.tv_usec < time1.tv_usec || time2.tv_sec < time1.tv_sec);
-}
-#endif
+static Address up0=NULL;
 
 Label *engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp)
 /* executes code at ip, if ip!=NULL
@@ -117,12 +88,13 @@ Label *engine(Xt *ip, Cell *sp, Cell *rp
 */
 {
   Xt cfa;
-  Address up=NULL;
+  Address up=up0;
   static Label symbols[]= {
     &&docol,
     &&docon,
     &&dovar,
     &&douser,
+    &&dodefer,
     &&dodoes,
     &&dodoes,  /* dummy for does handler address */
 #include "prim_labels.i"
@@ -135,7 +107,7 @@ Label *engine(Xt *ip, Cell *sp, Cell *rp
 
   if (ip == NULL)
     return symbols;
-  
+
   IF_TOS(TOS = sp[0]);
   IF_FTOS(FTOS = fp[0]);
   prep_terminal();
@@ -203,6 +175,13 @@ Label *engine(Xt *ip, Cell *sp, Cell *rp
 #endif
   NEXT;
   
+ dodefer:
+#ifdef DEBUG
+  printf("%08x: defer: %08x\n",(Cell)ip,(Cell)PFA1(cfa));
+#endif
+  cfa = *(Xt *)PFA1(cfa);
+  NEXT1;
+
  dodoes:
   /* this assumes the following structure:
      defining-word: