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Article #1318Int 13h Read Sectors/Write Sectors to HD
From: Roger Uzun
Date: Mon, 07 Sep 1992 01:29
Date: Mon, 07 Sep 1992 01:29
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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
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Newsgroups: comp.os.msdos.programmer Path: arc1-ca.pugleaf.net!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