67 lines
1.6 KiB
HTML
67 lines
1.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text-html; charset=Windows-1252">
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<title>INT 21,44,8 / IOCTL,8 - Device Removable Query</title>
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<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
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</head>
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<body>
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<h1><a name="kap_interrupt_2200"></a>INT 21,44,8 / IOCTL,8 -
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Device Removable Query</h1>
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<p> AH = 44h</p>
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<p> AL = 08</p>
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<p> BL = drive number (0=default, 1=A:, 2=B:, 3=C:, ...)</p>
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<p> on return</p>
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<p> CF = 0 if successful</p>
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<p> = 1 if error</p>
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<p> AX = 00 removable media</p>
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<p> = 01 non-removable media</p>
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<p> = error code if CF set (see ~DOS ERROR CODES~)</p>
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<p> - used to determine if a device supports removable media</p>
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<p> - RAM disks are not considered removable media</p>
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<p> - device drivers compatible with DOS 2.0 do not always
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respond</p>
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<p> correctly to this query</p>
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<p> - implemented from DOS 3.0; for earlier DOS versions drive A:
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and</p>
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<p> B: are removable media since DRIVER.SYS/SUBST are DOS 3.0+
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only</p>
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<hr>
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<table border="0" width="100%" cols="3">
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<tr>
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<td width="33%">Zurück zum <a href="inte1at0.htm">Interrupt
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Info</a>. </td>
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<td align="center" width="33%"><a
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href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
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/ 1998 </td>
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<td align="right" width="33%"><font size="1">L.Änderung <!--webbot
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bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
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startspan -->29.03.99<!--webbot bot="Timestamp" endspan
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i-checksum="13964" --> </font></td>
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</tr>
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</table>
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</body>
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</html>
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