diff --git a/libsrc/apple2/apple2-ssc.s b/libsrc/apple2/apple2-ssc.s
index b7e14a9ae..a0b35c5ad 100644
--- a/libsrc/apple2/apple2-ssc.s
+++ b/libsrc/apple2/apple2-ssc.s
@@ -168,9 +168,9 @@ CLOSE:
 ; Must return an SER_ERR_xx code in a/x.
 
 OPEN:	
-	ldx	#$00
+	ldx	#<$C000
 	stx	ptr2
-	lda	#$C0
+	lda	#>$C000
 	ora	Slot
 	sta	ptr2+1
 	
diff --git a/libsrc/apple2/dosdetect.s b/libsrc/apple2/dosdetect.s
index ff4ce291c..4fb6fcad6 100644
--- a/libsrc/apple2/dosdetect.s
+++ b/libsrc/apple2/dosdetect.s
@@ -26,8 +26,8 @@
         .include        "mli.inc"
 
 ; Identify DOS version according to:
-; - "Beneath Apple ProDOS", chapter 6-63
-; - "Apple II ProDOS 8 TechNote #023: ProDOS 8 Changes and Minutia"
+; - Beneath Apple ProDOS, chapter 6-63
+; - Apple II ProDOS 8 TechNote #23, ProDOS 8 Changes and Minutia
 ; - ProDOS TechRefMan, chapter 5.2.4
 
         .segment        "INIT"
diff --git a/libsrc/apple2/get_ostype.s b/libsrc/apple2/get_ostype.s
index 77bf95f43..a041c3477 100644
--- a/libsrc/apple2/get_ostype.s
+++ b/libsrc/apple2/get_ostype.s
@@ -8,7 +8,7 @@
         .export         _get_ostype
 
 ; Identify machine according to:
-; "Apple II Miscellaneous TechNote #7: Apple II Family Identification"
+; Apple II Miscellaneous TechNote #7, Apple II Family Identification
 
         .segment        "INIT"