How is OPL enhanced?
OPL32 uses almost the same commands as OPL16. Some have been removed and others are new. Porting OPL16 programs to the Series5 is a more or less complicated task depending on your original program’s complexity. CALL and OS for example are gone now, so you’d have to find another solution. OPL32 is extended with the help of OPX (OPL eXtensions). These are external “library” files programmed in C++. There are several OPXs already included in the S5’s ROM.
