madedit

1. MadEdit can use to edit file in hex/colume format. View | Column Mode/Hex Mode.
   
2. Use column mode to mark hole c file as comment
   
   1. open a source c file.
      
   2. select column mode
      
   3. ctrl + A to select all
      
   4. type "/" twice
      
3. MadEdit 0.2.9-1 will cash when open 2 files at the same time,
   you can download the patch, but need to compile the source code.
   
4. Reference
   
   1. download