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oldlinux-files/docs/interrupts/int-html/rb-3259.htm
2024-02-19 00:23:35 -05:00

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<TITLE>Int 21/AX=8E00h/BH=00h
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Int 21/AX=8E00h/BH=00h - European MS-DOS 4.0 - SETPRI - GET/SET PROCESS PRIORITY -
AX = 8E00h
BH = 00h
BL = action
00h set priority for command subtree
01h set priority for specified process only
CX = Process ID
DH = 00h
DL = change in priority (00h to get priority)
Return: CF clear if successful
DL = process priority
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<h2>Int 21/AX=8E00h/BH=00h
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<h3><font color=#C00040>European MS-DOS 4.0 - SETPRI - GET/SET PROCESS PRIORITY</font></h3>
<PRE>
AX = 8E00h
BH = 00h
BL = action
00h set priority for command subtree
01h set priority for specified process only
CX = Process ID
DH = 00h
DL = change in priority (00h to get priority)<br>
<p><b>Return:</b><br>CF clear if successful
DL = process priority
DH destroyed
CF set on error
AX = error code (01h,no such process)<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 #01680 at AH=59h)
</PRE>
<p><b>Desc:</b>
Specify or determine the execution priority of the specified process
or the process and all of its children
<p><b>See Also:</b>
<a href="rb-3241.htm" tppabs="http://www.ctyme.com/intr/rb-3241.htm">AH=81h</a>
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DOS Kernel</a>
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Int 21h</a>
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