$0400-$07E8 - Screen low
$080E-$1eaf - Main executable
$2000-$3FFF - Picture low
$4000-$418F - Color buffer
$4190-$42F2 - Additional code
$4400-$47E8 - Screen high
$6000-$7FFF - Picture high
$8000-$9FFF - Cartridge rom
$C000-$C19F - Transfer buffer
$C1A0-$CEB6 - NMI handlers