--- gforth/float.fs	1995/02/08 13:38:51	1.14
+++ gforth/float.fs	1995/10/07 17:38:12	1.16
@@ -26,9 +26,10 @@
 
 : f, ( f -- )  here 1 floats allot f! ;
 
-: fconstant  ( r -- )
+: fconstant  ( r -- ) \ float
     Create f,
-    DOES> f@ ;
+DOES> ( -- r )
+    f@ ;
 
 : fdepth  ( -- n )  f0 @ fp@ - [ 1 floats ] Literal / ;
 
@@ -68,47 +69,67 @@
   scratch over c@ emit '. emit 1 /string type
   'E emit . ;
 
+require debugging.fs
+
 : sfnumber ( c-addr u -- r / )
-    2dup >float
+    2dup [CHAR] e scan
+    dup 0=
+    IF
+	2drop 2dup [CHAR] E scan
+    THEN
+    nip
     IF
-	2drop state @
+	2dup >float
 	IF
-	    postpone FLiteral
+	    2drop state @
+	    IF
+		POSTPONE FLiteral
+	    THEN
+	    EXIT
 	THEN
-    ELSE
-	defers notfound
-    THEN ;
+    THEN
+    defers notfound ;
 
 ' sfnumber IS notfound
 
 : fvariable ( -- )
-    Create 0e0 f, ;
+    Create 0.0E0 f, ;
     \ does> ( -- f-addr )
 
-1e0 fasin 2e0 f* fconstant pi
+1.0e0 fasin 2.0e0 f* fconstant pi
 
-: f2*  2e0 f* ;
-: f2/  .5e0 f* ;
-: 1/f  1e0 fswap f/ ;
+: f2*  2.0e0 f* ;
+: f2/  0.5e0 f* ;
+: 1/f  1.0e0 fswap f/ ;
 
 
 \ We now have primitives for these, so we need not define them
 
-\ : falog ( f -- 10^f )  [ 10e0 fln ] FLiteral f* fexp ;
+\ : falog ( f -- 10^f )  [ 10.0e0 fln ] FLiteral f* fexp ;
 
-\ : fsinh    fexpm1 fdup fdup 1e0 f+ f/ f+ f2/ ;
+\ : fsinh    fexpm1 fdup fdup 1.0e0 f+ f/ f+ f2/ ;
 \ : fcosh    fexp fdup 1/f f+ f2/ ;
-\ : ftanh    f2* fexpm1 fdup 2e0 f+ f/ ;
+\ : ftanh    f2* fexpm1 fdup 2.0e0 f+ f/ ;
 
-\ : fatanh   fdup f0< >r fabs 1e0 fover f- f/  f2* flnp1 f2/
+\ : fatanh   fdup f0< >r fabs 1.0e0 fover f- f/  f2* flnp1 f2/
 \            r> IF  fnegate  THEN ;
-\ : facosh   fdup fdup f* 1e0 f- fsqrt f+ fln ;
-\ : fasinh   fdup fdup f* 1e0 f+ fsqrt f/ fatanh ;
+\ : facosh   fdup fdup f* 1.0e0 f- fsqrt f+ fln ;
+\ : fasinh   fdup fdup f* 1.0e0 f+ fsqrt f/ fatanh ;
 
-: f~ ( f1 f2 f3 -- flag )  fdup f0= IF  fdrop f= EXIT  THEN
-  fdup f0>   IF  frot frot f- fabs fswap
-           ELSE  fnegate frot frot fover fabs fover fabs f+ frot frot
-                 f- fabs frot frot f*  THEN  f< ;
+\ !! factor out parts
+: f~ ( f1 f2 f3 -- flag ) \ float-ext
+    fdup f0=
+    IF
+	fdrop f= EXIT
+    THEN
+    fdup f0>
+    IF
+	frot frot f- fabs fswap
+    ELSE
+	fnegate frot frot fover fabs fover fabs f+ frot frot
+	f- fabs frot frot f*
+    THEN
+    f< ;
 
 : f.s  ." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 
   ?DO  dup i - 1- floats fp@ + f@ f.  LOOP  drop ;