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oldlinux-files/docs/interrupts/int-html/rb-0053.htm
2024-02-19 00:23:35 -05:00

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<TITLE>Int 0B
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Int 0B - CPU-generated (80286+) - SEGMENT NOT PRESENT -
Desc: generated when loading a segment register if the segment descriptor
indicates that the segment is not currently in memory, unless the
segment is an LDT (see INT 0ACPU) or stack segment (see
INT 0CCPU) needed by a task switch
Note: may be used to implement virtual memory by loading in segments as they
are accessed, clearing the not present bit after loading
SeeAlso: INT 0ACPU,INT 0ECPU
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<h2>Int 0B
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<h3><font color=#C00040>CPU-generated (80286+) - SEGMENT NOT PRESENT</font></h3>
<p><b>Desc:</b>
Generated when loading a segment register if the segment descriptor
indicates that the segment is not currently in memory, unless the
segment is an LDT (see INT 0A"CPU") or stack segment (see
INT 0C"CPU") needed by a task switch
<p><b>Note:</b>
May be used to implement virtual memory by loading in segments as they
are accessed, clearing the "not present" bit after loading
<p><b>See Also:</b>
<a href="rb-0051.htm" tppabs="http://www.ctyme.com/intr/rb-0051.htm">INT 0A"CPU"</a> - <a href="rb-0063.htm" tppabs="http://www.ctyme.com/intr/rb-0063.htm">INT 0E"CPU"</a>
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CPU-Generated</a>
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Int 0Bh</a>
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