--- gforth/kernel/vars.fs	1997/07/06 13:40:50	1.3
+++ gforth/kernel/vars.fs	1999/01/03 21:48:39	1.9
@@ -1,6 +1,6 @@
 \ VARS.FS      Kernal variables
 
-\ Copyright (C) 1995 Free Software Foundation, Inc.
+\ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
 
 \ This file is part of Gforth.
 
@@ -49,13 +49,13 @@ $20 8 2* cells + 2 + cell+ constant word
 
 \ initialized by COLD
 
-Create main-task  100 cells allot
+Create main-task  has? OS [IF] 100 [ELSE] 40 [THEN] cells allot
 
 \ set user-pointer from cross-compiler right
 main-task 
 UNLOCK tup ! LOCK
 
-Variable udp \ used by dovar:, must be variable
+Variable udp \ user area size? -anton
 
 AUser next-task        main-task next-task !
 AUser prev-task        main-task prev-task !
@@ -63,9 +63,10 @@ AUser save-task        0 save-task !
 AUser sp0 	\ used by douser:, must be user
 		' sp0 Alias s0
 AUser rp0	' rp0 Alias r0
-AUser fp0	' fp0 Alias f0
+AUser fp0       \ no f0, because this leads to unexpected results
 AUser lp0	' lp0 Alias l0
 AUser handler	\ pointer to last throw frame
+AUser backtrace-empty \ true if the next THROW should store a backtrace
 \ AUser output
 \ AUser input
 
@@ -79,6 +80,7 @@ AUser "error            0 "error !
  User #tib		\ chars in terminal input buffer
  User >in               0 >in ! \ char number currently processed in tib
 [THEN]
+has? file [IF]
  User blk               0 blk !
  User loadfile          0 loadfile !
 
@@ -91,6 +93,7 @@ AUser "error            0 "error !
 
 2User linestart         \ starting file postition of
                         \ the current interpreted line (in TIB)
+[THEN]
 
  User base              A base !
  User dpl               -1 dpl !
@@ -104,7 +107,8 @@ AUser dpp		normal-dp dpp !
 AUser LastCFA
 AUser Last
 
+has? glocals [IF]
 User locals-size \ this is the current size of the locals stack
 		 \ frame of the current word
-
+[THEN]