--- gforth/float.fs	2000/08/17 12:46:57	1.32
+++ gforth/float.fs	2002/11/02 15:26:03	1.38
@@ -16,7 +16,7 @@
 
 \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software
-\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 
 \ 1 cells 4 = [IF]
 \ ' cells   Alias sfloats
@@ -102,7 +102,7 @@ DOES> ( -- r )
 : f.  ( r -- ) \ float-ext f-dot
 \G Display (the floating-point number) @i{r} without exponent,
 \G followed by a space.
-  f$ dup >r 0<
+  f$ dup >r 0<=
   IF    '0 emit
   ELSE  scratch r@ min type  r@ precision - zeros  THEN
   '. emit r@ negate zeros
@@ -110,11 +110,14 @@ DOES> ( -- r )
 \ I'm afraid this does not really implement ansi semantics wrt precision.
 \ Shouldn't precision indicate the number of places shown after the point?
 
+\ Why do you think so? ANS Forth appears ambiguous on this point. -anton.
+
 : fe. ( r -- ) \ float-ext f-e-dot
 \G Display @i{r} using engineering notation (with exponent dividable
 \G by 3), followed by a space.
   f$ 1- s>d 3 fm/mod 3 * >r 1+ >r
-  scratch r@ min type '. emit scratch r> /string type
+  scratch r@ tuck min tuck - >r type r> zeros
+  '. emit scratch r> /string type
   'E emit r> . ;
 
 : fs. ( r -- ) \ float-ext f-s-dot
@@ -177,6 +180,9 @@ IS interpreter-notfound
     \G Divide 1.0e0 by @i{r1}.
     1.0e0 fswap f/ ;
 
+get-current environment-wordlist set-current
+1.7976931348623157e308 FConstant max-float
+set-current
 
 \ We now have primitives for these, so we need not define them
 
@@ -216,6 +222,19 @@ IS interpreter-notfound
 	fnegate f~rel
     THEN ;
 
+1e 53 0 [do] f2* [loop] fconstant fround-offset \ 2^53
+
+: fround ( r1 -- r2 ) \ float f-round
+\G Round to nearest integral value.  Break ties with round-to-even.
+    \ assumes IEEE DP FP in round-to-even mode.
+    \ for an explanation of this code read
+    \ <2002Oct26.113823@a0.complang.tuwien.ac.at> ff.
+    fdup f0> if
+	fround-offset f- fround-offset f+
+    else fdup f0< if \ leave 0e and -0e as is
+	    fround-offset f+ fround-offset f-
+    then then ;
+
 : f.s ( -- ) \ gforth f-dot-s
     \G Display the number of items on the floating-point stack,
     \G followed by a list of the items; TOS is the right-most item.