Simple: get Dance Dance Revolution GB. Got it? Now, try playing a song that has silmutaneous Left and Right OR Up and Down, "Dub I Dub", for example. What happens? Simply... You will MISS those simultaneous presses. Long time ago, before VBA 1.5 I think, this kind of issue did not exist. So, if possible... Either revert this to that OR give us a checkbox in Input that allows us to enable/disable this behavior.
Its a bug in the current emulated controller code for DMG, and we don't have anyone to resolve it at this time.
Odd... I thought it was a limiter the original VBA team added. I'll look into VBA-M's file then and see if I can try to understand.
Sys.cpp, line 254, from most recent src files available here (vbam-r1202-src).
Good thing the codes have lots of comments to speed up searches.
Last edit: Tsukiyomaru Zero 2014-05-01
That file is Wx only and has no impact elsewhere.
But maybe what is in there can clue us to something elsehwere, no?