int 21H function 7305

[lek_70]

hey does anyone of you ever heard functin 7305H in INT 21H?? if so, how to use it??Thanks.

[CornedBee]

From Ralph Brown's interrupt list :

Windows95 - FAT32 - EXTENDED ABSOLUTE DISK READ/WRITE
AX = 7305h
CX = FFFFh
DL = drive number (01h=A:, etc.)
SI = read/write mode flags (see #01791)
DS:BX -> disk I/O packet (see #02548 at INT 25)
Return:CF clear if successful
CF set on error
AX = error code

Note: One can not specify the default drive (DL=00h) for this function.

See Also: AX=7302h - AX=7304h - INT 25 - INT 26


Bitfields for Extended Absolute Disk Read/Write mode flags:

Bit(s) Description (Table 01791)
0 direction (0=read, 1=write)
12-1 reserved (0)
14-13 write type (should be 00 on reads).
00 unknown data.
01 FAT data.
10 directory data.
11 file data
15 reserved (0)