80C286_08 Datasheet, PDF (54/60 Pages) Intersil Corporation – High Performance Microprocessor with Memory Management and Protection

80C286
80C286 Instruction Set Summary (Continued)
FUNCTION
FORMAT
LEA = Load EA to Register 10001101 mod reg
r/m
LDS = Load Pointer to DS 11000101 mod reg (mod ≠ 11)
r/m
LES = Load Pointer to ES 11000100 mod reg (mod ≠ 1)
r/m
LAHF Load AH with Flags 10011111
SAHF = Store AH into Flags 10011110
PUSHF = Push Flags
10011100
POPF = Pop Flags
10011101
ARlTHMETlC
ADD = Add
Reg/Memory with Register 000000dw mod reg
to
r/m
Either
Immediate to Regis- 100000sw mod 000 data
ter/Memory
r/m
data if
sw = 01
Immediate to Accumulator 0000010w data
data if w =
1
ADC = Add with Carry
Reg/Memory with Register 000100dw mod reg
to
r/m
Either
Immediate to Regis- 100000sw mod 010 data
ter/Memory
r/m
data if
sw = 01
Immediate to Accumulator 0001010w data
data if w =
1
INC = Increment
Register/Memory
1111111w mod 000
r/m
Register
01000 reg
SUB = Subtract
Reg/Memory and Register 001010dw mod reg
to
r/m
Either
CLOCK COUNT
COMMENTS
REAL PRO-
ADDRES TECTED
S
VIRTUAL
MODE ADDRESS
MODE
REAL PRO-
ADDRES TECTED
S
VIRTUAL
MODE ADDRESS
MODE
3
3
(Note 59) (Note 59)
7
21
2
(Note 59) (Note 59)
9, 10, 11
7
21
2
(Note 59) (Note 59)
9, 10, 11
2
2
2
2
3
3
2
9
5
5
2, 4
9, 15
2, 7
2, 7
2
9
(Note 59) (Note 59)
3, 7
3, 7
2
9
(Note 59) (Note 59)
3
3
2, 7
2, 7
2
9
(Note 59) (Note 59)
3, 7
3, 7
2
9
(Note 59) (Note 59)
3
3
2, 7
2, 7
2
9
(Note 59) (Note 59)
2
2
2, 7
2, 7
2
9
(Note 59) (Note 59)
54