diff --git a/libsrc/c128/waitvsync.s b/libsrc/c128/waitvsync.s
index 1597e5fa0..e4bbbf7c9 100644
--- a/libsrc/c128/waitvsync.s
+++ b/libsrc/c128/waitvsync.s
@@ -1,3 +1,8 @@
+;
+; Written by Groepaz <groepaz@gmx.net>
+;
+; void waitvsync (void);
+;
 
         .export         _waitvsync
 
diff --git a/libsrc/c64/waitvsync.s b/libsrc/c64/waitvsync.s
index 15ef61bb7..a4bf13080 100644
--- a/libsrc/c64/waitvsync.s
+++ b/libsrc/c64/waitvsync.s
@@ -1,3 +1,8 @@
+;
+; Written by Groepaz <groepaz@gmx.net>
+;
+; void waitvsync (void);
+;
 
         .export         _waitvsync
 
diff --git a/libsrc/cbm510/waitvsync.s b/libsrc/cbm510/waitvsync.s
index db6c16179..ed7300f7c 100644
--- a/libsrc/cbm510/waitvsync.s
+++ b/libsrc/cbm510/waitvsync.s
@@ -1,3 +1,8 @@
+;
+; Written by Groepaz <groepaz@gmx.net>
+;
+; void waitvsync (void);
+;
 
         .export         _waitvsync
         .import         PALFLAG
@@ -8,16 +13,16 @@
         .include        "cbm510.inc"
 
 _waitvsync:
-        jsr sys_bank        ; Switch to the system bank
+        jsr     sys_bank        ; Switch to the system bank
         sei
 
-        ldy #VIC_CTRL1
+        ldy     #VIC_CTRL1
 @l1:
-        lda (vic),y
-        bpl @l1
+        lda     (vic),y
+        bpl     @l1
 @l2:
-        lda (vic),y
-        bmi @l2
+        lda     (vic),y
+        bmi     @l2
 
         cli
-        jmp	restore_bank
+        jmp	    restore_bank
diff --git a/libsrc/gamate/waitvsync.s b/libsrc/gamate/waitvsync.s
index 9b1199055..dee83400d 100644
--- a/libsrc/gamate/waitvsync.s
+++ b/libsrc/gamate/waitvsync.s
@@ -1,4 +1,6 @@
 ;
+; Written by Groepaz <groepaz@gmx.net>
+;
 ; void waitvsync (void);
 ;
 
diff --git a/libsrc/nes/waitvsync.s b/libsrc/nes/waitvsync.s
index 11a231ac4..4bdf9a9d0 100644
--- a/libsrc/nes/waitvsync.s
+++ b/libsrc/nes/waitvsync.s
@@ -1,5 +1,5 @@
 ;
-; Written by Groepaz/Hitmen <groepaz@gmx.net>
+; Written by Groepaz <groepaz@gmx.net>
 ; Cleanup by Ullrich von Bassewitz <uz@cc65.org>
 ;
 ; void waitvsync(void);
diff --git a/libsrc/pce/waitvsync.s b/libsrc/pce/waitvsync.s
index f1eab36f8..c6435dabd 100644
--- a/libsrc/pce/waitvsync.s
+++ b/libsrc/pce/waitvsync.s
@@ -1,4 +1,6 @@
 ;
+; Written by Groepaz <groepaz@gmx.net>
+;
 ; void waitvsync (void);
 ;
 
diff --git a/libsrc/plus4/waitvsync.s b/libsrc/plus4/waitvsync.s
index 84654d996..32b81b52b 100644
--- a/libsrc/plus4/waitvsync.s
+++ b/libsrc/plus4/waitvsync.s
@@ -1,3 +1,8 @@
+;
+; Written by Groepaz <groepaz@gmx.net>
+;
+; void waitvsync (void);
+;
 
         .export         _waitvsync
 
diff --git a/libsrc/vic20/waitvsync.s b/libsrc/vic20/waitvsync.s
index 9f0d50565..b5861ada3 100644
--- a/libsrc/vic20/waitvsync.s
+++ b/libsrc/vic20/waitvsync.s
@@ -1,3 +1,9 @@
+;
+; Written by Groepaz <groepaz@gmx.net>
+;
+; void waitvsync (void);
+;
+
         .export         _waitvsync
 
         .include        "vic20.inc"