Int 83 Fn 02 - Jm Pro Tracker V5.0 - ??? [s]

AH = 02h
BX = ???
???

Return: CF clear if successful
AX = ???
BX = ???
CX = ???
DX = ???
SI = ???
CF set on error
AX = error code (000Ah,000Bh,other) (see #3647)