Memory usage

Just for the ones with TI-86/z80-knowledge: the memory areas Worm uses:

  begin end size
Virtual screen 8820 A7FF 1FE0
Worm 1 A800 ABFF 400
Game Data AC00 ACFF 100
Sin/cos Table AD00 AE00 101
Worm 2 B000 B3FF 400
Display buffer B400 B78F 390
Worm 3 B800 BBFF 400
Worm 4 F000 F3FF 400
Levels data F400 FA70 <671

Note1: Everything in hex. Note2: Worm 1-4 addresses must be mod$800=0.

I just want to ask all z80-programmers out there: can I safely use these addresses? If not, tell me now!

NO OBJECTIONS, now GO AWAY!