--- gforth/comp-i.fs	2007/12/31 18:40:23	1.19
+++ gforth/comp-i.fs	2010/05/13 09:39:07	1.21
@@ -77,26 +77,12 @@ s" address-unit-bits" environment? drop
 	    coffset 0<> cell1 coffset + cell2 = and
 	    if
 		cell1 cbase - cell / { tag }
-		tag dodoes-tag =
-		if
-		    \ make sure that the next cell will not be tagged
-		    \ !! can probably be optimized away with hybrid threading
-		    dbase negate image1 i 1+ th +!
-		    dbase doffset + negate image2 i 1+ th +!
-		endif
 		tag >tag $4000 xor file-id write-cell throw
 		i reloc-bits set-bit
 	    else
 		xoffset 0<> cell1 xoffset + cell2 = and
 		if
 		    cell1 xbase - cell / { tag }
-		    tag dodoes-tag =
-		    if
-			\ make sure that the next cell will not be tagged
-			\ !! can probably be optimized away with hybrid threading
-			dbase negate image1 i 1+ th +!
-			dbase doffset + negate image2 i 1+ th +!
-		    endif
 		    tag >tag file-id write-cell throw
 		    i reloc-bits set-bit
 		else
@@ -112,7 +98,7 @@ s" address-unit-bits" environment? drop
 
 : comp-image ( "image-file1" "image-file2" "new-image" -- )
     name slurp-file { image1 size1 }
-    image1 size1 s" Gforth3" search 0= abort" not a Gforth image"
+    image1 size1 s" Gforth4" search 0= abort" not a Gforth image"
     drop 8 + image1 - { header-offset }
     size1 aligned size1 <> abort" unaligned image size"
     image1 header-offset + 2 cells + @ header-offset + size1 <> abort" header gives wrong size"