--- gforth/machpc.fs.in	2007/03/25 21:30:59	1.16
+++ gforth/machpc.fs.in	2007/04/09 22:36:01	1.18
@@ -108,17 +108,18 @@ false DefaultValue peephole     \ enable
 
 true DefaultValue primcentric   \ enables primcentric code
 
+true DefaultValue f83headerstring
 
 true DefaultValue abranch       \ enables absolute branches
 
-false DefaultValue control-rack \ disable return stack use for control flow
+true DefaultValue control-rack  \ disable return stack use for control flow
 
 false DefaultValue crlf
 
 true DefaultValue flash
     
 $0 DefaultValue kernel-start   \ no artificial offset
-cell 2 = [IF] &32 KB [ELSE] &64 KB [THEN] DefaultValue kernel-size
+&48 KB DefaultValue kernel-size
 
 &1 KB		DefaultValue stack-size
 &0 KB		DefaultValue fstack-size