Why 16384 is not screen range?

[bin]

The front is always normal, but when you paint the roof and lock it is wrong.
I read the book several times, and carefully scrutinize my code, but still did not find out the problem.
I really want to get help. Thank you.

[cadet1620]

Look at the "Argument" values. Screen.drawLine called
    Screen.drawPixel(280, -449);
Although address (local 0) is not shown in your screen shot, you can see its value on the stack at address 283. address = -14351.

screenAddress[address] is trying to reference RAM[16384-14351] = RAM[2033].


I see nothing wrong with the code you included.  Please edit your post to remove the source code.

[bin]

It turns out to be a Y coordinate problem. thank you very much!