checklist for compo3-entries:
(the correct thing is in brackets)

+ does the entry run in dos-mode? (yes)

+ does the entry work with run.bat? (yes)

+ does the entry work after renaming? (yes)

+ is it independent of the cmd line? (yes)

+ is it independent of external files line? (yes)

+ does the program init mode 3 at the start? (yes)

- are bar1.pos (0/0), bar2.pos (0/24), ball.pos (2/2), ball.mov (1/1)
  at the beginning? (yes)
  here, ball.mov is (-1/1).

+ is the screen re-initialized in the mainloop? (no)

+  in color 10? (yes)

+  with width 10? (yes)

+  in color 9? (yes)

+ does the current bar1/bar2/ball get overwritten on deleting the old
  bar1/bar2/ball? (no)

+ how does the prog wait for the retrace?
  (without interrupt, five times, first beginning, then end, or first end,
  then beginning) (yes)

+ do the numerical 4 and 6 as well as the 4 6 numpad work when numlock is
  turned off? (yes)

+ does the keyboardhandler react to keypress and not release? (yes)

+ does the keyboardbuffer get cleared? (yes)

+ does the bar always move by 5 positions? (yes)

+ does the bar stop when it has got to the right/left edge? (yes)

+ does the ball always move by ([sign]1/[sign]1)? (yes)

+ does the ball get reflected correctly? (yes)

+ does the program stop when the ball hits the top/bottom corner? (yes)

+ does mode 3 get reinitialized then? (yes)

+ will the right winner be displayed? will the winning text be displayed
  correctly? (yes)

+ crash? (no)
