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- Newsgroups: comp.os.msdos.programmer
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!wupost!usc!sol.ctr.columbia.edu!ucselx!crash!uzun
- From: uzun@crash.cts.com (Roger Uzun)
- Subject: Int 13h Read Sectors/Write Sectors to HD
- Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
- Date: 06 Sep 92 18:29:18 PDT
- Message-ID: <1992Sep06.182919.17070@crash>
- Lines: 16
-
- When you do a write/read sectors request to/from the Hard Disk,
- using int 13h, does the BIOS auto step through the cylynders/heads
- if your request spans such a boundary.
- For example if a disk has 4 heads, 17 sectors/track and you
- ask to read 80 sectors starting at head 0, cylynder 20, sector 1,
- will the BIOS give you hd 0 secs 1-17, hd 1 secs 1-17, hd 2
- secs 1-17, hd 3 secs 1-17, then go on to the next cylynder (21)
- and give you the remaining sectors from hd 0 of that sector?
-
- Just how smart is the read/write sector command of int 13h
-
-
- -Roger
- --------------------------------------------------------------
- bix: ruzun
- NET: uzun@crash.cts.com
-