# 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.
Automatically refresh registers
  Select this checkbox to refresh registers before debugging.
Automatically refresh shared libraries
  Select this checkbox to refresh links to shared libraries before debugging.
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 in the field provided.