The docs keep going like this, sentence after sentence, paragraph after paragraph of abstruse technical vocabulary with no context. It doesn’t build on anything. It doesn’t tell a story 

No central architectural authority
6,740 goto statements
Inline assembly code
Multiple different coding styles
Obscure use of macro preprocessors
Inconsistent naming conventions
Far too many selections and options
Unexplained dead code
Misleading and incoherent comments