Update div10

src/basic/math/bafe.div10_FAC1_p.s

@@ -3,11 +3,16 @@
 ;; #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.
+
 ; Math package - divide FAC1 by 10, result is always positive
 ;
+;
+; This is verified to be identical to the original Microsoft implementation where it was named DIV10.
+;
 ; Notes:
-; - moves FAC1 to FAC2, loads FAC1 with the constant 10, jumps to the division routine
+; - moves FAC1 to FAC2, loads FAC1 with the constant 10, falls through to the division routine
 
 ;
 ; See also:
@@ -18,9 +23,9 @@
 
 div10_FAC1_p:
 
-    jsr mov_FAC1_FAC2
-    ldy #>const_TEN
-    lda #<const_TEN
-    jsr mov_MEM_FAC1
+    	jsr	mov_r_FAC1_FAC2
+        lda #<const_TEN
+        ldy #>const_TEN
+	    ldx #0      		    ; SIGNS ARE BOTH POSITIVE.
 
-    jmp div_FAC2_FAC1
+        ; Fallthrough to div_FAC2_MEM