# Debug page, Preferences window

You can manipulate any of the common predefined debug settings by clicking Window > Preferences > C/C++ > Debug.

Show Full Paths
  Select this checkbox to show the full path to files and directories.
Default variable format:
  Select the default variable format from either Natural, Decimal or Hexidecimal.
Default expression format:
  Select the default expression format from either Natural, Decimal or Hexidecimal.
Default register format:
  Select the default register format from either Natural, Decimal or Hexidecimal.
Maximum number of instructions:
  Enter the maximum number of disassembly instruction to be shown in the Disassembly view.
Color of source lines:
  Select the color of source lines in the mixed source/disassembly mode.