74 lines
1.7 KiB
HTML
74 lines
1.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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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,D / IOCTL,D - Generic I/O for Block Devices</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_2250"></a>INT 21,44,D / IOCTL,D -
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Generic I/O for Block Devices</h1>
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<p> AH = 44h</p>
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<p> AL = 0D</p>
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<p> BL = drive number (0=default, 1=A:, 2=B:, 3=C:, ...)</p>
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<p> CH = device type</p>
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<p> = 08 for disk drive (block device)</p>
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<p> CL = minor function code</p>
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<p> = 40 set device parameters</p>
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<p> = 41 write track on logical device</p>
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<p> = 42 format/verify track on logical drive</p>
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<p> = 47 set access flag (DOS 4.x)</p>
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<p> = 60 get device parameters</p>
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<p> = 61 read track on logical device</p>
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<p> = 62 verify track on logical drive</p>
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<p> = 67 get access flag (DOS 4.x)</p>
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<p> DS:DX = pointer to parameter block</p>
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<p> on return</p>
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<p> AX = error code if CF set (see ~DOS ERROR CODES~)</p>
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<p> - provides device independent primitive control operations</p>
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<p> - implemented from DOS 3.2</p>
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<p> - see IBM DOS Technical Reference Manual for more details</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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