Diagonals no working on frame advance

[GoogleCodeExporter]

_What steps will reproduce the problem?
1. Press any two buttons for a diagonal (ex: UP & RIGHT) 
2. Go to the next frame while keeping the two keys pressed

_What is the expected output? What do you see instead?
The game should take the diagonal information frame per frame but instead it 
don't do anything.

_What version of the product are you using? On what operating system?
VBA Emulator v24 svn480 on Windows 7

_Please provide any additional information below.
My bug have occured on Bilbo the Hobbit.

Original issue reported on code.google.com by [email protected] on 2 Jul 2014 at 9:37