2 ; Oliver Schmidt, 24.03.2005
4 ; dhandle_t __fastcall__ dio_open (driveid_t drive_id);
8 .import return0, __dos_type
17 lda #$01 ; "Bad system call number"
18 bne oserr ; Branch always
23 beq :+ ; Found drive_id in device list
26 lda #$28 ; "No device connected"