1.00
   initial release

1.10 
   48KHz audio
   sprite bugs for huge insect
   & character
   non GG cheat codes in lines 2-5

1.20 (betas)
   palette selecting
   FDS menu buttons
   Gradius 2
   FF7 / Pokemon Yellow?
   pal gamepads
   always ntsc in menus
   menu reset scroll dir
   powerpak nsfs
   xexyz (b8)
   disabled icon (b8)
   pal frame sequencer (b8)
   regs to 3fxx (b8)

1.20
   no changes
   
1.30b1
   more illegal opcodes
   horizontal interpolation (mostly untested)
   sprite overflow flag for extra sprites
   bus timing/power
   gg -> cheats buttons corruption

1.30b2
   fixed non boot issue from 1.30b1
   
1.30b3
   horizontal interpolation

1.30b5
   fixed audio popping
   
1.30b6
   game -> menus gg corruption
   PAL vblank flag (rc pro am)
   
1.30 (final)
   fixed audio popping (again)

1.40b2
  Fixes some PAL games with audio and game speed issues

1.40b3
  Fixes more PAL games (ppu)

1.40b4
  Fixes boot to black screen issue in Mega Man 5. May break other games!

1.50b1
  Start of custom palette uploading

1.50 Final
   Fix Game Genie (?)
   Custom color palette update