INSIDE COMMODORE DOS
* fixing hex dumps:
- "\sOO" -> "\100" (changes "oo" -> "00" regardless of white space) in hex dumps
- " [oO]([0-9A-F])" -> "0\1" -- fixes (some) malformed hex pairs
- start offsets on new lines: "(\.? [0-9A-F]{2}:)" -> "\n\1"
- added leading periods back to hex dumps: "^ ?([0-9A-F]{2}:)" -> ". \1"
- working on chapters 3-4