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oldlinux-files/docs/interrupts/int-html/rb-0653.htm
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<TITLE>Int 13/AH=1Ch
</TITLE>
<META NAME="Description" CONTENT="
Int 13/AH=1Ch - Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM -
AH = 1Ch
DL = hard drive ID (any valid SCSI hard disk)
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CF clear if successful
ES:BX - first byte of free RAM on controller
Notes: the Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h
to 1BFFh on-board the controller for storing drive information and
controller status; ES:BX points to the first byte available for other
uses
">
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<h2>Int 13/AH=1Ch
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<h3><font color=#C00040>Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM</font></h3>
<PRE>
AH = 1Ch
DL = hard drive ID (any valid SCSI hard disk)<br>
<p><b>Return:</b><br>CF set on error
AH = status code <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #00234 at AH=01h)
CF clear if successful
ES:BX -> first byte of free RAM on controller
</PRE>
<p><b>Notes:</b>
The Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h
to 1BFFh on-board the controller for storing drive information and
controller status; ES:BX points to the first byte available for other
uses.
ES contains the segment at which the controller resides; the
controller's two memory-mapped I/O ports are at offsets 1C00h, 1E00h
<p><b>See Also:</b>
<a href="rb-0612.htm" tppabs="http://www.ctyme.com/intr/rb-0612.htm">AH=1Bh"SCSI"</a>
<p>
<b>Category: <a href="cat-008.htm" tppabs="http://www.ctyme.com/intr/cat-008.htm">
Disk I/O Enhancements</a>
- <a href="int-13.htm" tppabs="http://www.ctyme.com/intr/int-13.htm">
Int 13h</a>
- <a href="alpha-f.htm" tppabs="http://www.ctyme.com/intr/alpha-f.htm">
F</a>
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