diff --git a/defines_apple.s b/defines_apple.s
index 0099e8b..8ea33ee 100644
--- a/defines_apple.s
+++ b/defines_apple.s
@@ -23,17 +23,6 @@ GOGIVEAYF       := $0008
 
 USR				:= $000A
 
-;CHARAC          := $000D
-;ENDCHR          := $000E
-;EOLPNTR         := $000F
-;DIMFLG          := $0010
-;VALTYP          := $0011
-;DATAFLG         := $0013
-;SUBFLG          := $0014
-;INPUTFLG        := $0015
-;CPRMASK         := $0016
-;Z14             := $0017                        ; Ctrl+O flag
-
 POSX            := $0050
 Z17             := $0051
 Z18             := $0052
diff --git a/defines_cbm.s b/defines_cbm.s
index 39f70ed..7703f7d 100644
--- a/defines_cbm.s
+++ b/defines_cbm.s
@@ -48,17 +48,6 @@ LINNUM          := $0008
 TXPSV			:= $0008
 INPUTBUFFER     := $000A
 
-;CHARAC          := $005A
-;ENDCHR          := $005B
-;EOLPNTR         := $005C
-;DIMFLG          := $005D
-;VALTYP          := $005E
-;DATAFLG         := $0060
-;SUBFLG          := $0061
-;INPUTFLG        := $0062
-;CPRMASK         := $0063
-;Z14             := $0064                        ; Ctrl+O flag
-
 Z96				:= $020C
 
 NULL_MAX		:= $0A
@@ -73,17 +62,6 @@ LOWTRX = LOWTR
 USR				:= $0000
 GORESTART       := $0000
 
-;CHARAC          := $005A-82-5
-;ENDCHR          := $005B-82-5
-;EOLPNTR         := $005C-82-5
-;DIMFLG          := $005D-82-5
-;VALTYP          := $005E-82-5
-;DATAFLG         := $0060-82-5
-;SUBFLG          := $0061-82-5
-;INPUTFLG        := $0062-82-5
-;CPRMASK         := $0063-82-5
-;Z14             := $0064-82-5                        ; Ctrl+O flag
-
 Z03				:= $000E;3 ; same
 LINNUM          := $0011;0008
 
diff --git a/defines_kbd.s b/defines_kbd.s
index 2b1495b..60b3f87 100644
--- a/defines_kbd.s
+++ b/defines_kbd.s
@@ -26,17 +26,6 @@ TXPSV           := $0049
 INPUTBUFFER     := $0700
 INPUTBUFFERX    := $0700
 
-;CHARAC          := $0006;5B
-;ENDCHR          := $0007;5C
-;EOLPNTR         := $0008;5D
-;DIMFLG          := $0009;5E
-;VALTYP          := $000A;5F
-;DATAFLG         := $000B;60
-;SUBFLG          := $000C;61
-;INPUTFLG        := $000D;62
-;CPRMASK         := $000E;63
-;Z14             := $000F;64                        ; Ctrl+O flag
-
 JMPADRS         := $0093;A1
 LOWTRX          := $0094;AA                        ; $AB also EXPSGN?
 Z96				:= $0096
diff --git a/defines_kim.s b/defines_kim.s
index 095ea71..e52f154 100644
--- a/defines_kim.s
+++ b/defines_kim.s
@@ -22,17 +22,6 @@ GOSTROUT        := $0003
 GOAYINT         := $0006
 GOGIVEAYF       := $0008
 
-;CHARAC          := $000A
-;ENDCHR          := $000B
-;EOLPNTR         := $000C
-;DIMFLG          := $000D
-;VALTYP          := $000E
-;DATAFLG         := $0010
-;SUBFLG          := $0011
-;INPUTFLG        := $0012
-;CPRMASK         := $0013
-;Z14             := $0014                        ; Ctrl+O flag
-
 Z15             := $0015
 POSX            := $0016
 Z17             := $0017
diff --git a/defines_microtan.s b/defines_microtan.s
index 3896a83..bfe1d97 100644
--- a/defines_microtan.s
+++ b/defines_microtan.s
@@ -26,24 +26,8 @@ GOSTROUT        := $001A
 GOAYINT         := $001D
 GOGIVEAYF       := $001F
 
-;.segment "ZEROPAGE"
-;.org $21
-;USR:
-;.res 1
-;.segment "CODE"
 USR := $0021
 
-;CHARAC          := $000A+$1A
-;ENDCHR          := $000B+$1A
-;EOLPNTR         := $000C+$1A
-;DIMFLG          := $000D+$1A
-;VALTYP          := $000E+$1A
-;DATAFLG         := $0010+$1A
-;SUBFLG          := $0011+$1A
-;INPUTFLG        := $0012+$1A
-;CPRMASK         := $0013+$1A
-;Z14             := $0014+$1A                        ; Ctrl+O flag
-
 Z15             := $0015+$1A
 POSX            := $0016+$1A
 Z17             := $0017+$1A
diff --git a/defines_osi.s b/defines_osi.s
index 48ce11a..2343ab5 100644
--- a/defines_osi.s
+++ b/defines_osi.s
@@ -28,17 +28,6 @@ TXPSV           := $0011
 INPUTBUFFER     := $0013
 INPUTBUFFERX    := $0000
 
-;CHARAC          := $005B
-;ENDCHR          := $005C
-;EOLPNTR         := $005D
-;DIMFLG          := $005E
-;VALTYP          := $005F
-;DATAFLG         := $0060
-;SUBFLG          := $0061
-;INPUTFLG        := $0062
-;CPRMASK         := $0063
-;Z14             := $0064                        ; Ctrl+O flag
-
 L0207           := $0207
 L020A           := $020A
 MONRDKEY        := $FFEB