diff --git a/021.calling_c/calling_c.s b/021.calling_c/calling_c.s
index 70c9fdb..a5cdba5 100644
--- a/021.calling_c/calling_c.s
+++ b/021.calling_c/calling_c.s
@@ -1,7 +1,7 @@
 	include "includes.i"
 
 	xref	InstallColorPalette
-	xref	PokeBitplanePointers
+	;; xref	PokeBitplanePointers ;; We don't need the ASM version of this for this example
 	xref	copperList
 	xref 	copperListAlternate
 	xref	bitplanes
@@ -27,7 +27,8 @@ Entry:
 	bra	.mainLoop
 
 ;===========================================================
-	if 1
+; We don't need the ASM version of this for this example
+	if 0
 PokeBitplanePointers:
 	; d0 = frame offset in bytes;
 	; a0 = BPLP copper list address 
diff --git a/021.calling_c/init.s b/021.calling_c/init.s
index b1af005..123fc1f 100644
--- a/021.calling_c/init.s
+++ b/021.calling_c/init.s
@@ -21,7 +21,7 @@ Init:
 	move.l 	#SCREEN_BIT_DEPTH,-(sp)	  ; in reverse order. 16 bit variables are passed as 32 bits.
 	move.l	#1,-(sp)		  ; interlace line.
 	pea	bitplanes                 ; make sure you push the address...
-	pea	copperListAlternate       ; of variables, not the value.
+	pea	copperListAlternate       ; of pointers, not the value they point to.
 	jsr	_PokeBitplanePointers	  ; C adds an _ to all global symbols.
 	add.l   #20,sp          	  ; Need to pop the arguments from the stack.
 	endif
@@ -30,7 +30,7 @@ Init:
 	move.l 	#SCREEN_BIT_DEPTH,-(sp)	  ; in reverse order.
 	move.l	#0,-(sp)		  ; normal line.
 	pea	bitplanes                 ; make sure you push the address...
-	pea	copperList                ; of variables, not the value.
+	pea	copperList                ; of pointers, not the value they point to.
 	jsr	_PokeBitplanePointers	  ; C adds an _ to all global symbols.
 	add.l   #20,sp          	  ; Need to pop the arguments from the stack.