Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!zaphod.mps.ohio-state.edu!wuarchive!rex!barnett
From: barnett@rex.cs.tulane.edu (Karey Barnett)
Newsgroups: comp.os.msdos.programmer
Subject: Re: HD park
Message-ID: <7623@rex.cs.tulane.edu>
Date: 22 May 91 22:50:17 GMT
References: <29586@hydra.gatech.EDU> <1991May22.170907.2417@wixer.helps.cs.utexas.edu>
Organization: Computer Science Dept., Tulane Univ., New Orleans, LA
Lines: 19

In article <1991May22.170907.2417@wixer.helps.cs.utexas.edu> reaper@wixer.helps.cs.utexas.edu (Keath Milligan) writes:
>As far as I know, there is no standard sub-function 19 (or 19h) to the BIOS
>diskette services interrupt 13h.

My advanced MSDOS programming books indicates that this function is
supported on PS/2's ONLY.

>Next, function 11h (recallibrate fixed disk) of Int 13h is used:
>
>               mov ah,11h
>               mov dl,80h
>               int 13h
>               jc error
>
>I can't seem to find much documentation on this function, so I'm afraid I don't
>know exactly what it does...

This function positions the read/write arm to cylinder 0, and returns the
drive status.