lostecho/oldlinux-files
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
eec934fe6cdf00ff46c70c324c1949d18222ecc3
oldlinux-files/docs/interrupts/int-html/rb-3007.htm
gohigh 9912ec445d add directory docs
2024-02-19 00:23:35 -05:00

232 lines
12 KiB
HTML
Raw Blame History

<HTML>
<HEAD>
<TITLE>Int 21/AX=5758h
</TITLE>
<META NAME="Description" CONTENT="
Int 21/AX=5758h - Headroom - API -
AX = 5758h
BL = function
00h ???
01h get Headroom location
Return: CF clear if installed
AX = PSP segment of Headroom TSR
BX = paragraphs of memory used by Headroom
CF set if not (normal DOS return)
Note: this function is also used as an installation check
02h get INT 21 handler
">
<META NAME="robots" CONTENT="none">
</HEAD>
<BODY BGCOLOR="#FFD0A0">
<center>
<h2>Int 21/AX=5758h
</h2>
</center><p>
<table border=1 cellpadding=3 cellspacing=1>
<td>
<a href="rb-3006.htm" tppabs="http://www.ctyme.com/intr/rb-3006.htm">
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
<a href="rb-3008.htm" tppabs="http://www.ctyme.com/intr/rb-3008.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>Headroom - API</font></h3>
<PRE>
AX = 5758h
BL = function
00h ???
01h get Headroom location
<p><b>Return:</b><br>CF clear if installed
AX = PSP segment of Headroom TSR
BX = paragraphs of memory used by Headroom
CF set if not (normal DOS return)
</PRE>
<p><b>Note:</b>
This function is also used as an installation check
02h get INT 21 handler
<PRE>
<p><b>Return:</b><br>CF clear
ES:BX -> Headroom's INT 21 handler
</PRE>
<p><b>Note:</b>
Also sets unknown flag
03h launch application???
DS:SI -> 233-byte application record
<PRE>
<p><b>Return:</b><br>???
04h ???
???
<p><b>Return:</b><br>CF clear
05h get swap directory
<p><b>Return:</b><br>CF clear
DX:AX -> ASCIZ swap directory name
06h ???
DX = ???
<p><b>Return:</b><br>CF clear
07h ???
08h ???
09h get current application
<p><b>Return:</b><br>BX = application number
0Ah ???
DX = application number
DS:SI = ???
<p><b>Return:</b><br>???
0Bh ???
0Ch ???
DX = application number
???
<p><b>Return:</b><br>???
0Dh ???
DX = application number
???
<p><b>Return:</b><br>???
0Eh get ???
<p><b>Return:</b><br>CF clear
AX = ???
0Fh set ??? flag
10h clear ??? flag
11h find application by name
DS:SI -> ASCIZ application name
<p><b>Return:</b><br>CF clear
AX = application number or FFFFh if not loaded
12h ???
DX = application number
<p><b>Return:</b><br>CF clear
???
13h ???
<p><b>Return:</b><br>CF clear
14h ???
same as function 13h
15h set ???
DX = ???
16h get ???
<p><b>Return:</b><br>AX = ??? set by function 15h
17h get ???
<p><b>Return:</b><br>BX = ???
CX = ??? (may be pointer in BX:CX)
<p><b>18h BUG:</b><br>Branches incorrectly due to fencepost error
</PRE>
<p><b>Program:</b>
Headroom is a TSR/task switcher by Helix Software
<p><b>See Also:</b>
<a href="rb-2975.htm" tppabs="http://www.ctyme.com/intr/rb-2975.htm">AX=4C57h</a> - <a href="rb-3006.htm" tppabs="http://www.ctyme.com/intr/rb-3006.htm">AX=5757h</a> - <a href="rb-4906.htm" tppabs="http://www.ctyme.com/intr/rb-4906.htm">INT 2F/AX=5758h</a>
<p>
<b>Category: <a href="cat-043.htm" tppabs="http://www.ctyme.com/intr/cat-043.htm">
Uncatagorized</a>
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
Int 21h</a>
- <a href="alpha-h.htm" tppabs="http://www.ctyme.com/intr/alpha-h.htm">
H</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-3006.htm" tppabs="http://www.ctyme.com/intr/rb-3006.htm">
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
<a href="rb-3008.htm" tppabs="http://www.ctyme.com/intr/rb-3008.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>
Reference in New Issue View Git Blame Copy Permalink