Category: file/disk compression
INT 2F - DBLSPACE.BIN - "DSGetEntryPoints" - GET DEVICE DRIVER ENTRY POINTS AX = 4A11h BX = 0003h CL = drive number (0=A:) of compressed drive Return: CL = FFh on error (not compressed drive) CL <> FFh driver unit number of host drive ES:SI -> device driver's strategy routine ES:DI -> device driver's interrupt routine BX destroyed Note: in conjunction with subfunction 0004h, this call allows disk caches like SMARTDRV to apply a device driver wrapper to DoubleSpaced drives just like SMARTDRV applies to regular block devices SeeAlso: AX=4A10h/BX=0007h,AX=4A11h/BX=0000h,AX=4A11h/BX=0004h