* improved performance for fl+, fl-, fl*, fl/, fl=?, fl<?, fl<=?, fl>? and fl>=?

- results in 
    45% reduction in runtime for fpsum
    43% reduction in runtime for fibfp
    29% reduction in runtime for pnpoly
    28% reduction in runtime for mbrot
  - and
    23% increase in compile time for nucleic
    11% increase in compile time for ray
    10% increase in compile time for fft

BUGS

@@ -1,11 +1,31 @@
-BUG:
-* (exact->inexact (/ (expt 2 3000) (- (expt 2 3000) 1)))
-  should return 1.0, not +nan.0.
+Performance Bugs:
+
+Tail call optimization does not seem to always kick.  In this
+example, x which comes in (disp -4 %esp) is copied into 
+(disp -4 %esp) even though it was there to begin with.
+
+> (lambda (x) (quotient x x))
+   
+    ---
+    (cmpl -4 %eax)
+    (jne (label L16))
+    (label L17)
+    (movl (disp -4 %esp) %edi)
+    (movl (disp -4 %esp) %eax)
+    (movl %edi %ebx)
+    (movl (disp (obj quotient) 7) %edi)
+    (movl %ebx (disp -4 %esp))
+    (movl %eax (disp -8 %esp))
+    (movl -8 %eax)
+    (jmp (disp -3 %edi))
+    (label L16)
+    (jmp (label SL_invalid_args))
+    (nop)
+
+Other Bugs:
 
 * fxsra does not work for large numbers
 
-* pretty-print goes into infinite loop on cyclic data
-* set! on global names is not working.
 * Ensure immutable exports
 
 
@@ -22,6 +42,14 @@ Unix:unified)
 18446744073709551615
 
 ======================================================================
+FIXED: 
+
+* pretty-print goes into infinite loop on cyclic data
+
+* set! on global names is not working.
+
+* (exact->inexact (/ (expt 2 3000) (- (expt 2 3000) 1)))
+  should return 1.0, not +nan.0.
 
 * FIXED symbol calls are not checking for non-procedure.
 
@@ -58,4 +86,3 @@ Fixed:
   Two displays occurred at the end.
 
 
-