161 lines
11 KiB
HTML
161 lines
11 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>Int 21/AH=24h
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 21/AH=24h - DOS 1+ - SET RANDOM RECORD NUMBER FOR FCB -
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AH = 24h
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DS:DX - opened FCB (see #01345)
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Notes: computes the random record number corresponding to the current record
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number and record size, then stores the result in the FCB
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normally used when switching from sequential to random access
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not supported by MS Windows 3.0 DOSX.EXE DOS extender
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SeeAlso: AH=21h,AH=27h,AH=42h
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">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 21/AH=24h
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</h2>
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</center><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<h3><font color=#C00040>DOS 1+ - SET RANDOM RECORD NUMBER FOR FCB</font></h3>
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<PRE>
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AH = 24h
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DS:DX -> opened FCB <a href="rb-2574.htm#Table1345" tppabs="http://www.ctyme.com/intr/rb-2574.htm#Table1345">(see #01345)</a>
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</PRE>
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<p><b>Notes:</b>
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Computes the random record number corresponding to the current record
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number and record size, then stores the result in the FCB.
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Normally used when switching from sequential to random access.
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Not supported by MS Windows 3.0 DOSX.EXE DOS extender
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<p><b>See Also:</b>
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<a href="rb-2598.htm" tppabs="http://www.ctyme.com/intr/rb-2598.htm">AH=21h</a> - <a href="rb-2683.htm" tppabs="http://www.ctyme.com/intr/rb-2683.htm">AH=27h</a> - <a href="rb-2799.htm" tppabs="http://www.ctyme.com/intr/rb-2799.htm">AH=42h</a>
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<p>
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<b>Category: <a href="cat-010.htm" tppabs="http://www.ctyme.com/intr/cat-010.htm">
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DOS Kernel</a>
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- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
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Int 21h</a>
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- <a href="alpha-d.htm" tppabs="http://www.ctyme.com/intr/alpha-d.htm">
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D</a>
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</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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