User's Manual

THE 80286 INSTRUCTION SET
STR-Store Task Register
Opcode
Instruction
Clocks
Description
OF 00 /1
STR ew 2,mem=3 Store Task Register to EA word
FLAGS MODIFIED
None
FLAGS UNDEFINED
None
OPERATION
The contents of the Task Register are copied to the 2-byte register or memory location indicated by
the effective address operand.
PROTECTED MODE EXCEPTIONS
#GP(O) if the destination is in a non-writable segment. #GP(O) for an illegal memory operand effective
address in the
CS, DS, or ES segments; #SS(O) for an illegal address in the SS segment.
REAL ADDRESS MODE EXCEPTIONS
Interrupt 6; STR is not recognized in Real Address mode.
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