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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
See Also: #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 ???
See Also: #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 ??? ???
See Also: #02611 - #02612
Category: DOS Kernel - Int 2Fh - D
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