Windows notepad. If you use a word processor, make sure that you chose the
option Save As Text while saving
The MS DOS Debugger
The DOS “Debug” program is an example of simple debugger that comes with MS DOS. Hence, it is available on any PC. It was initially designed to give the user the capability to trace logical errors in executable files. It allows the user to take an existing executable file and unassembled it, i.e. convert it to assembly language. Also it allows the user to write assembly language instructions directly, and then convert them to machine language.
Below, are summarized the basic DOS Debugger’s commands:
A [assemble] It allows to transfer instructions, which are written in symbols into the machinery codes;