THE
80286
INSTRUCTION SET
SLOT
-Store
Local Descriptor Table Register
Opcode
Instruction
OF
00 /0
SLOT
ew
FLAGS MODIFIED
None
FLAGS UNDEFINED
None
OPERATION
Clocks
2,mem=3
Description
Store Local Descriptor Table register to
EA
word
The Local Descriptor Table register
is
stored
in
the 2-byte register or memory location indicated by
the effective address operand. This register
is
a selector that points into the Global Descriptor Table.
SLDT appears only in operating systems software.
It
is
not used
in
applications programs.
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;
SLDT
is
not recognized
in
Real
Address mode.
8-102
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