Errors I made during development

• array out of bounds errors -> crashes

• off by one errors

• OwnBlitter() ommitted -> weird artefacts

• assuming that variables are automatically initialized by compiler -> weird effects

• not taking the modulo when using circular arrays

• copy-paste bugs

• accidentally hardcoding parameters

Conclusions

• don’t treat the OS as your enemy, it’s your friend, use the functionalty that makes your life easier

• don’t forget that we are running in a multitasking environment

• don’t forget that C-compilers are not required to initialize data

• don’t assume that compilers are bug-free, but don’t assume that the compiler is the problem before making sure that the problem isn’t your code