VM65816 -- Memory and IO map

Addresses: 

bbppaa: bb = bank byte, pp = page byte, aa = address byte

bbppaa-bbppaa Size : Description 
000000-00FFFF  64k : Zero Page
010000-01FFFF  64k : System Stack
020000-07FFFF 384k : System Variables
080000-0FFFFF 512k : Shared Memory Area
100000-8FFFFF   8m : Application RAM
900000-AFFFFF   2m : User RAM
B00000-BFFFFF   1m : Multimedia RAM (Sound Samples and Sprites)
C00000-CFFFFF   1m : Video banked RAM
D00000-DFFFFF   1m : I/O area
E00000-EFFFFF   1m : Disk banked NVRAM
F00000-FEFFFF 960k : ROM BIOS
FF0000-FFFFFF  64k : OS jump table

Zero Page
000000           2 : Accumulator
000002           2 : X register
000004           2 : Y register
000006           2 : Stack Pointer
000008           4 : Program Counter
00000C           2 : Direct Page Register
00000E           1 : Processor Status
00000F           1 : ?