User's Manual

THE 80286 INSTRUCTION SET
JUMP TASK STATE SEGMENT:
TSS DPL must be 2: CPL else #GP (TSS selector)
TSS
DPL must be 2: TSS selector RPL else #GP (TSS selector)
Descriptor AR byte must specify available TSS (bottom bits 00001) else #GP (TSS selector)
Task State Segment must be PRESENT else #NP (TSS selector)
SWITCH_TASKS
with nesting to TS.
IP
must be in code segment limit else #GP(O)
Else GP (selector)
PROTECTED MODE EXCEPTIONS
For NEAR jumps, #GP(O) if the destination offset is beyond the limits of the current code segment.
For FAR jumps, #GP, #NP, #SS, and #TS,
as indicated above. #UD if indirect inter-segment jump
operand
is a register.
REAL ADDRESS MODE EXCEPTIONS
#UD if indirect inter-segment jump operand is a register.
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