220 lines
13 KiB
HTML
220 lines
13 KiB
HTML
<HTML>
|
|
<HEAD>
|
|
<TITLE>Int 21/AX=7302h
|
|
</TITLE>
|
|
<META NAME="Description" CONTENT="
|
|
Int 21/AX=7302h - Windows95 - FAT32 - Get_ExtDPB - GET EXTENDED DPB -
|
|
AX = 7302h
|
|
DL = drive number (00h=default, 01h=A:, etc.)
|
|
ES:DI - buffer for returned data (see #01786)
|
|
CX = length of buffer (003Fh for Windows95)
|
|
SI = signature (undocumented, must be F1A6h to get device driver
|
|
address and next-DBP pointer) (see #01787)
|
|
Return: CF clear if successful
|
|
ES:DI buffer filled
|
|
CF set on error
|
|
AX = error code
|
|
">
|
|
<META NAME="robots" CONTENT="none">
|
|
</HEAD>
|
|
<BODY BGCOLOR="#FFD0A0">
|
|
<center>
|
|
<h2>Int 21/AX=7302h
|
|
</h2>
|
|
</center><p>
|
|
<table border=1 cellpadding=3 cellspacing=1>
|
|
<td>
|
|
<a href="rb-3225.htm" tppabs="http://www.ctyme.com/intr/rb-3225.htm">
|
|
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
|
|
<a href="rb-3227.htm" tppabs="http://www.ctyme.com/intr/rb-3227.htm">
|
|
<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/rbrown.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/rbrown.htm'" tppabs="http://www.ctyme.com/rbrown.htm">
|
|
<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
|
|
<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
|
|
<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
|
|
<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
|
|
</td></table><p>
|
|
<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
|
<h3><font color=#C00040>Windows95 - FAT32 - Get_ExtDPB - GET EXTENDED DPB</font></h3>
|
|
<PRE>
|
|
AX = 7302h
|
|
DL = drive number (00h=default, 01h=A:, etc.)
|
|
ES:DI -> buffer for returned data <a href="rb-3226.htm#Table1786" tppabs="http://www.ctyme.com/intr/rb-3226.htm#Table1786">(see #01786)</a>
|
|
CX = length of buffer (003Fh for Windows95)
|
|
SI = signature (undocumented, must be F1A6h to get device driver
|
|
address and next-DBP pointer) <a href="rb-3226.htm#Table1787" tppabs="http://www.ctyme.com/intr/rb-3226.htm#Table1787">(see #01787)</a><br>
|
|
<p><b>Return:</b><br>CF clear if successful
|
|
ES:DI buffer filled
|
|
CF set on error
|
|
AX = error code
|
|
0018h bad buffer length
|
|
</PRE>
|
|
<p><b>See Also:</b>
|
|
<a href="rb-3227.htm" tppabs="http://www.ctyme.com/intr/rb-3227.htm">AX=7303h</a> - <a href="rb-3228.htm" tppabs="http://www.ctyme.com/intr/rb-3228.htm">AX=7304h</a> - <a href="rb-2594.htm" tppabs="http://www.ctyme.com/intr/rb-2594.htm">AH=1Fh</a> - <a href="rb-2724.htm" tppabs="http://www.ctyme.com/intr/rb-2724.htm">AH=32h</a>
|
|
<PRE>
|
|
<p>
|
|
Format of Get_ExtDPB data buffer:
|
|
<a name=table1786></a>
|
|
Offset Size Description (Table 01786)
|
|
00h WORD (call) length of following data (003Dh)
|
|
02h 61 BYTEs (ret) drive parameter block (DPB) <a href="rb-3226.htm#Table1787" tppabs="http://www.ctyme.com/intr/rb-3226.htm#Table1787">(see #01787)</a>
|
|
<p>
|
|
Format of Extended Drive Parameter Block:
|
|
<a name=table1787></a>
|
|
Offset Size Description (Table 01787)
|
|
00h 24 BYTEs standard DOS 4+ DPB
|
|
18h BYTE "dpb_flags" (undocumented)
|
|
FFh force media check
|
|
19h DWORD pointer to next DPB (see note)
|
|
1Dh WORD cluster at which to start search for free space when writing,
|
|
usually the last cluster allocated
|
|
1Fh WORD number of free clusters on drive, FFFFh = unknown
|
|
21h WORD high word of free cluster count
|
|
23h WORD active FAT/mirroring
|
|
<p><b>bit 7:</b><br>Do not mirror active FAT to inactive FATs
|
|
<p><b>bits 6-4:</b><br>Reserved (0)
|
|
<p><b>bits 3-0:</b><br>The 0-based FAT number of the active FAT
|
|
(only meaningful if mirroring disabled)
|
|
25h WORD sector number of file system information sector, or
|
|
FFFFh for none (see also #01788)
|
|
27h WORD sector number of backup boot sector, or FFFFh for none
|
|
29h DWORD first sector number of the first cluster
|
|
2Dh DWORD maximum cluster number
|
|
31h DWORD number of sectors occupied by FAT
|
|
35h DWORD cluster number of start of root directory
|
|
39h DWORD cluster number at which to start searching for free space
|
|
</PRE>
|
|
<p><b>Notes:</b>
|
|
Except for offset 18h, all of the first 33 bytes are identical to
|
|
the standard DOS 4-6 DPB.
|
|
Unless the proper value is given in SI on entry to "Get_ExtDBP", the
|
|
next-DPB pointer and device driver address are set to 0000h:0000h
|
|
<p><b>See Also:</b>
|
|
#01786 - #01395 at AH=32h - #01664
|
|
<PRE>
|
|
<p>
|
|
Format of File System Information structure:
|
|
<a name=table1788></a>
|
|
Offset Size Description (Table 01788)
|
|
00h DWORD signature 61417272h
|
|
04h DWORD number of free clusters (FFFFFFFFh if unknown)
|
|
08h DWORD most recently allocated cluster
|
|
0Ch 12 BYTEs reserved
|
|
</PRE>
|
|
<p><b>See Also:</b>
|
|
#01787
|
|
<p>
|
|
<b>Category: <a href="cat-010.htm" tppabs="http://www.ctyme.com/intr/cat-010.htm">
|
|
DOS Kernel</a>
|
|
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
|
|
Int 21h</a>
|
|
- <a href="alpha-w.htm" tppabs="http://www.ctyme.com/intr/alpha-w.htm">
|
|
W</a>
|
|
</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
|
<table border=1 cellpadding=3 cellspacing=1>
|
|
<td>
|
|
<a href="rb-3225.htm" tppabs="http://www.ctyme.com/intr/rb-3225.htm">
|
|
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
|
|
<a href="rb-3227.htm" tppabs="http://www.ctyme.com/intr/rb-3227.htm">
|
|
<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/rbrown.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/rbrown.htm'" tppabs="http://www.ctyme.com/rbrown.htm">
|
|
<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
|
|
<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
|
|
<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
|
|
<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
|
|
</td></table><p>
|
|
|
|
<!-- Bottom Link Start -->
|
|
|
|
<center>
|
|
|
|
<p><table border=1 bgcolor="#ffff99"><tr><td>
|
|
<table border=0 height=80>
|
|
<tr align=center><td width="65">
|
|
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/sponsor.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">
|
|
<img src="tip.gif" tppabs="http://graphics.ctyme.com/gif/tip.gif" ALT="Sponsors" height="40" width="40"></a>
|
|
<br><a href="javascript:if(confirm('http://www.ctyme.com/sponsor.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">Shopping</a>
|
|
|
|
</td><td width="65">
|
|
|
|
<a href="javascript:if(confirm('http://talk.ctyme.com/webx.cgi?13@@.ee6b2be \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://talk.ctyme.com/webx.cgi?13@@.ee6b2be'" tppabs="http://talk.ctyme.com/webx.cgi?13@@.ee6b2be">
|
|
<img src="comment.gif" tppabs="http://graphics.ctyme.com/gif/comment.gif" ALT="Forum" height="40" width="40"></a>
|
|
<br><a href="javascript:if(confirm('http://talk.ctyme.com/webx.cgi?13@@.ee6b2be \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://talk.ctyme.com/webx.cgi?13@@.ee6b2be'" tppabs="http://talk.ctyme.com/webx.cgi?13@@.ee6b2be">Forum</a>
|
|
|
|
</td><td width="65">
|
|
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/mail.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/mail.htm'" tppabs="http://www.ctyme.com/mail.htm">
|
|
<img src="mail.gif" tppabs="http://graphics.ctyme.com/gif/mail.gif" ALT="email" height="40" width="40"></a>
|
|
<br><a href="javascript:if(confirm('http://www.ctyme.com/mail.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/mail.htm'" tppabs="http://www.ctyme.com/mail.htm">EMail</a>
|
|
|
|
</td><td width="65">
|
|
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/map.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/map.htm'" tppabs="http://www.ctyme.com/map.htm">
|
|
<img src="toc.gif" tppabs="http://graphics.ctyme.com/gif/toc.gif" ALT="Index" height="40" width="40"></a>
|
|
<br><a href="javascript:if(confirm('http://www.ctyme.com/map.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/map.htm'" tppabs="http://www.ctyme.com/map.htm">Index</a>
|
|
|
|
</td><td width="65">
|
|
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/'" tppabs="http://www.ctyme.com/">
|
|
<img src="home.gif" tppabs="http://graphics.ctyme.com/gif/home.gif" ALT="Home" height="40" width="40"></a>
|
|
<br><a href="javascript:if(confirm('http://www.ctyme.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/'" tppabs="http://www.ctyme.com/">Home</a>
|
|
|
|
</td><td width="90">
|
|
|
|
<center>
|
|
<FORM ACTION="https://secure.paypal.com/cgi-bin/webscr" tppabs="https://secure.paypal.com/cgi-bin/webscr" METHOD="POST" traget="_blank">
|
|
<INPUT TYPE="hidden" NAME="cmd" VALUE="_xclick">
|
|
<INPUT TYPE="hidden" NAME="business" VALUE="marc@perkel.com">
|
|
<INPUT TYPE="hidden" NAME="return" VALUE="http://www.perkel.com">
|
|
<INPUT TYPE="hidden" NAME="item_name" VALUE="Donation To Support this Site">
|
|
<INPUT TYPE="hidden" NAME="no_intl" VALUE="1">
|
|
<INPUT TYPE="image" SRC="x-click-but7.gif" tppabs="http://images.paypal.com/images/x-click-but7.gif" vspace=9
|
|
NAME="submit" ALT="Make payments with PayPal - it's fast, free and secure!">
|
|
</FORM>
|
|
|
|
</td></tr></table></td></tr></table><p>
|
|
|
|
|
|
<center>
|
|
<p>
|
|
<a href="javascript:if(confirm('http://www.ctyme.com/hosting/index.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/hosting/index.htm'" tppabs="http://www.ctyme.com/hosting/index.htm" target="_blank">
|
|
<img src="ctymehost.gif" tppabs="http://graphics.ctyme.com/gif/ctymehost.gif"
|
|
border=3 height=60 width=468></a>
|
|
<p>
|
|
<!-- Ad End --->
|
|
|
|
</center>
|
|
<FORM ACTION="http://service.bfast.com/bfast/click" target="_blank">
|
|
<INPUT TYPE="hidden" NAME="siteid" VALUE="30472466" >
|
|
<INPUT TYPE="hidden" NAME="bfpage" VALUE="horizontal">
|
|
<INPUT TYPE="hidden" NAME="bfmid" VALUE="27253343" >
|
|
<INPUT TYPE="hidden" NAME="num" VALUE="30">
|
|
|
|
<table bgcolor=white border=3><tr><td>
|
|
<table bgcolor=white border=0>
|
|
<tr><td>
|
|
<IMG SRC="serve-bfmid=27253343&siteid=30472466&bfpage=horizontal.gif" tppabs="http://service.bfast.com/bfast/serve?bfmid=27253343&siteid=30472466&bfpage=horizontal" BORDER="0" WIDTH="1" HEIGHT="1" align=right NOSAVE >
|
|
<center><b>Search the web with Google</b></center>
|
|
</td></tr><tr><td>
|
|
<TABLE cellpadding=0 cellspacing=5 bgcolor="#FFFFFF">
|
|
<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr><tr><td>
|
|
<IMG SRC="affiliate_logo.gif" tppabs="http://www.google.com/affiliates/affiliate_logo.gif" border="0" ALT="Google" align="center">
|
|
<INPUT TYPE=text name=q size=30 maxlength=255 value="">
|
|
<INPUT type=submit name=sa VALUE="Go">
|
|
</td></tr>
|
|
<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr></TABLE>
|
|
</td></tr></table>
|
|
</tr></td></table>
|
|
</FORM>
|
|
|
|
</center>
|
|
|
|
|
|
<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
|
|
|
<!-- Bottom Link End -->
|
|
|
|
</BODY>
|
|
</HTML>
|