INT 2F U - DOS 3.3+ internal - SET FASTOPEN ENTRY POINT AX = 122Ah BX = entry point to set (0001h or 0002h) DS:SI -> FASTOPEN entry point (see #02611,#02612) (entry point not set if SI = FFFFh for DOS 4.0+) Return: CF set if specified entry point already set Notes: entry point in BX is ignored under DOS 3.30 both entry points set to same handler by DOS 4.01 DOS 5.0 and 6.0 only set entry point 1 (Table 02611) Values DOS 3.30+ FASTOPEN entry point is called with: AL = 01h Lookup CX = ??? seems to be offset DI = ??? seems to be offset SI = offset in DOS DS of filename AL = 02h insert file into FASTOPEN cache AL = 03h delete file from FASTOPEN cache SI = offset in DOS DS of filename AL = 04h purge FASTOPEN cache AH = subfunction (00h,01h,02h) ES:DI -> ??? CX = ??? (subfunctions 01h and 02h only) Returns: CF set on error or not installed Note: function 03h calls function 01h first SeeAlso: #02612,#02613 (Table 02612) Values PC-DOS 4.01 FASTOPEN is additionally called with: AL = 04h ??? AH = 03h ??? AL = 05h ??? AL = 0Bh ??? AL = 0Ch ??? AL = 0Dh ??? AL = 0Eh ??? AL = 0Fh ??? AL = 10h ??? SeeAlso: #02611,#02613 (Table 02613) Values MS-DOS 5.0-6.0 FASTOPEN is additionally called with: AL = 04h purge FASTOPEN cache AH = 03h ??? AL = 05h ??? DL = drive (00h = A:) ??? AL = 06h ??? ??? SeeAlso: #02611,#02612