Memory Map

$0000 to $0FFF: Stack and ZP, it's yours

$1000 to $2FFF: Single Buffer VRAM (4 BPP, 2 pixels per byte)

$3000 to $3010: Audio Data (1 Byte Per Voice * 16 Voices = 16 Bytes)

$3011: Player 1 controller state

$3012: Player 2 controller state

$3013 to $3023: Palette Info

$3024: Pixel Status register

$3025 to $302f: Programmable interval timer

$3030 to $303f: Disk I/O area

$3030 to 0x7FFF: Working RAM