diff --git a/avr/modules/uart_bitbang/main.asm b/avr/modules/uart_bitbang/main.asm
index ca10971..f2fdd6d 100644
--- a/avr/modules/uart_bitbang/main.asm
+++ b/avr/modules/uart_bitbang/main.asm
@@ -21,6 +21,9 @@
 
 
 
+; ***************************************************************************
+; data
+
 .dseg
 
 
@@ -35,6 +38,9 @@ uartBitbangDataEnd:
 
 
 
+; ***************************************************************************
+; code
+
 .cseg