Int 0A

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CPU-generated (80286+) - INVALID TASK STATE SEGMENT

Desc: Automatically called during a task switch if the new TSS specified by the task gate is invalid for any of the following reasons: TSS limit is less than 43 (80286) or 103 (80386/80486) LDT selector invalid or segment not present null SS selector, or SS selector outside LDT/GDT limit stack segment is read-only stack segment DPL differs from new CPL, or RPL <> CPL CS selector is outside LDT/GDT limit or not code non-conforming code segment's DPL differs from CPL conforming code segment's DPL > CPL DS/ES selectors outside LDT/GDT limit or not readable segments

Note: The handler must use a task gate in order to have a valid TSS under which to execute; it must also reset the busy bit in the new TSS

See Also: INT 0B"CPU"

Category: CPU-Generated - Int 0Ah - C

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