Update poly_exp

src/basic/math_trans/bfc4.poly_exp.s

@@ -3,8 +3,14 @@
 ;; #LAYOUT# *  BASIC_0  #TAKE
 ;; #LAYOUT# *   *       #IGNORE
 
+
+; This file is under the MIT license, it contains code released by Microsoft Corporation.
+; See LICENSE for more information.
+
 ; Polynomial for the exponential function
 
+; This is verified to be identical to the original Microsoft implementation where it was named EXPCON.
+
 
 !ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
 
@@ -20,7 +26,7 @@ poly_exp:
     +PUT_CONST_POLY_EXP_5
     +PUT_CONST_POLY_EXP_6
     +PUT_CONST_POLY_EXP_7
-    +PUT_CONST_POLY_EXP_8
 
+    ; The constant const_ONE now follows as part of this polynomial
 
 }