Following are some basic debugging hints. See documentation for an in-depth discussion of the debugger and its commands.

• The usual terminal session starts with a command

  ASGN 16 deck
  

  (where deck is the name of UNIX file containing MIX card deck).

• Set the breakpoints using BREAK command.
• Type GO.
• Upon encountering a breakpoint, the terminal stops and displays the instruction to be executed next. Do whatever it is necessary to do (e.g. examine the memory or registers, set new breakpoints or clear old ones, etc) and type CONT to resume execution of the program.
• You may restart the program after any breakpoint by typing GO again.
• To exit the terminal, type ^D or QUIT.