212 lines
12 KiB
HTML
212 lines
12 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>Int 2F/AX=D8C0h
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 2F/AX=D8C0h - Novell NLCACHE,NWCACHE - INSTALLATION CHECK -
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AX = D8C0h
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Return: AL = FFh if installed
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CL = memory type (01h NLCACHEC, 02h NLCACHEX, 03h NLCACHEM)
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DH = major version (01h for v1.1)
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DL = minor version (01h for v1.1)
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ES:DI - private API entry point (see #03091)
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Program: NWCACHE is the disk cache included with Personal NetWare,
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Novell DOS 7, Caldera OpenDOS 7.01, DR-OpenDOS 7.02, DR-DOS 7.02,
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and Caldera Thin Clients/Lineo DR-DOS 7.03.
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Note: This function is called by the NetWare Lite and Personal NetWare
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">
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<META NAME="robots" CONTENT="none">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 2F/AX=D8C0h
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</h2>
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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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<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>Novell NLCACHE,NWCACHE - INSTALLATION CHECK</font></h3>
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<PRE>
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AX = D8C0h<br>
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<p><b>Return:</b><br>AL = FFh if installed
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CL = memory type (01h NLCACHEC, 02h NLCACHEX, 03h NLCACHEM)
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DH = major version (01h for v1.1)
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DL = minor version (01h for v1.1)
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ES:DI -> private API entry point <a href="rb-5544.htm#Table3091" tppabs="http://www.ctyme.com/intr/rb-5544.htm#Table3091">(see #03091)</a>
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</PRE>
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<p><b>Program:</b>
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NWCACHE is the disk cache included with Personal NetWare,
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Novell DOS 7, Caldera OpenDOS 7.01, DR-OpenDOS 7.02, DR-DOS 7.02,
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and Caldera Thin Clients/Lineo DR-DOS 7.03.
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<p><b>Note:</b>
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This function is called by the NetWare Lite and Personal NetWare
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SERVER. It may also be called by future (post DR-DOS 7.03)
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COMMAND.COM before it returns to the prompt.
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<p><b>BUG:</b>
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Some pre-BETA 17 (1993/09/28) versions of NWCACHE returned -1,0,1
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instead of 1,2,3 for the memory type in CL.
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<p><b>See Also:</b>
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<a href="rb-5541.htm" tppabs="http://www.ctyme.com/intr/rb-5541.htm">AX=D800h</a> - <a href="rb-5543.htm" tppabs="http://www.ctyme.com/intr/rb-5543.htm">AX=D880h</a>
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<PRE>
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<p>
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<a name=table3091></a>
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(Table 03091)
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Call NLCACHE/NWCACHE "sideband function" API entry point with:.
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BX = function
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0000h flush request from server
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<p><b>Return:</b><br>CF clear if successful at flushing deferred writes
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AX = 0000h
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CF set on error
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AX = error code
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0001h (NWCACHE only) get cache statistics
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ES:DI -> buffer for statistics <a href="rb-5544.htm#Table4122" tppabs="http://www.ctyme.com/intr/rb-5544.htm#Table4122">(see #04122)</a>
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<p><b>Return:</b><br>CF clear if successful
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AX = 0000h
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ES:DI buffer filled
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other
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<p><b>Return:</b><br>CF set
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AX = 0001h (invalid function)
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<p>
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Format of NWCACHE cache statistics:
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<a name=table4122></a>
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Offset Size Description (Table 04122)
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00h WORD version
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02h BYTE memory type
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03h WORD initial cache size in KB
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05h WORD current cache size in KB
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07h DWORD number of read requests
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0Bh DWORD number of physical reads performed
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0Fh DWORD number of write requests
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13h DWORD number of physical writes performed
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17h BYTE delay ticks for deferred write (0 if no deferral)
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18h WORD maximum number of sectors in lookahead buffer
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1Ah WORD number of disk errors
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1Ch WORD number of cache memory errors
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</PRE>
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<p><b>See Also:</b>
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#03091
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<p>
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<b>Category: <a href="cat-008.htm" tppabs="http://www.ctyme.com/intr/cat-008.htm">
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Disk I/O Enhancements</a>
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- <a href="int-2f-1.htm" tppabs="http://www.ctyme.com/intr/int-2F.htm">
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Int 2Fh</a>
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- <a href="alpha-n.htm" tppabs="http://www.ctyme.com/intr/alpha-n.htm">
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N</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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</td></table><p>
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