INT E0 - REAL/32 - "DEV_WAITFLAG" - WAIT ON SYSTEM FLAG CL = 84h DX = system flag ID Return: AX = status (0000h success, else error code) if successful, this function does not return until the system flag has been set by an interrupt handler (see INT E0/CL=85h); if the flag was already set, this call returns immediately SeeAlso: INT E0/CL=85h,INT E0/CL=B7h