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.
8-108
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