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Analyzing the Intel 80286
1-20
•
Grp _ 1 - Contains the following instructions:
TEST
NOT
NEG
MUL
IMUL
DIV
IDIV
Note: The TEST instruction
is
included only when the instruction
concerns an immediate source operand.
•
Grp_2- Contains the following three groups of instructions:
INC
}
DEC
:}
PUSH
when the instruction concerns memory
operands on 8-bit registers
indirect operand
when the instruction concerns 16-bit memory
operands
•
2-byte - Contains the following instructions or groups of
instructions:
LAR
LSL
CLTS
2 byte Grpl (see below)
2 byte Grp2 (see below)
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