diff --git a/defines_apple.s b/defines_apple.s
index 0591562..38bfc0b 100644
--- a/defines_apple.s
+++ b/defines_apple.s
@@ -6,7 +6,6 @@ CONFIG_IO_MSB := 1 ; all I/O has bit #7 set
 CONFIG_PRINT_CR := 1 ; print CR when line end reached
 CONFIG_SAFE_NAMENOTFOUND := 1
 CONFIG_SCRTCH_ORDER := 3
-; INPUTBUFFER > $0100
 
 ; zero page
 ZP_START0 = $00
diff --git a/defines_cbm.s b/defines_cbm.s
index 4c537a2..e2e8512 100644
--- a/defines_cbm.s
+++ b/defines_cbm.s
@@ -24,7 +24,6 @@ CONFIG_DATAFLAG := 1
 CONFIG_EASTER_EGG := 1
 CONFIG_NO_READ_Y_IS_ZERO_HACK := 1
 CONFIG_PEEK_SAVE_LINNUM := 1
-; INPUTBUFFER > $0100
 .endif
 
 .ifdef CBM1
@@ -43,7 +42,7 @@ USR				:= GORESTART
 
 ; zero page
 ZP_START0 = $00
-ZP_START0A = $0E
+ZP_START0A = $0D
 ZP_START1 = $03
 ZP_START2 = $13
 
diff --git a/defines_kbd.s b/defines_kbd.s
index 325361a..a98e4ff 100644
--- a/defines_kbd.s
+++ b/defines_kbd.s
@@ -10,7 +10,6 @@ CONFIG_NO_READ_Y_IS_ZERO_HACK := 1
 CONFIG_SAFE_NAMENOTFOUND := 1
 CONFIG_SCRTCH_ORDER := 3
 CONFIG_SMALL := 1
-; INPUTBUFFER > $0100
 
 ; zero page
 ZP_START0 = $00
diff --git a/zeropage.s b/zeropage.s
index 6e7effb..ed59629 100644
--- a/zeropage.s
+++ b/zeropage.s
@@ -24,8 +24,8 @@ Z15:
 	.res 1
 .ifndef POSX; allow override
 POSX:
-	.res 1
 .endif
+	.res 1
 .ifndef Z17; allow override
 Z17:
 .endif