指令集依照机器操作码、汇编助记符和汇编操作数来描述指令，遵循下列约定：
reg8: 8位寄存器。
reg16: 16位寄存器。
mem8: 8位内存数值。
mem16: 16位内存数值。
immed8: 8位立即数值。
immed16: 16位立即数值。
immed32: 32位立即数值。
segReg: 16位段寄存器。
机器操作码
汇编助记符和操作数
00
ADD reg8/mem8,reg8
01
ADD reg16/mem16,reg16
02
ADD reg8,reg8/mem8
03
ADD reg16,reg16/mem16
04
ADD AL,immed8
05
ADD AX,immed16
06
PUSH es
07
POP es
08
OR reg8/mem8,reg8
09
OR reg16/mem16,reg16
0A
OR reg8,reg8/mem8
0B
OR reg16,reg16/mem16
0C
OR al,immed8
0D
OR ax,immed16
0E
PUSH cs
0F
Not used
10
ADC reg8/mem8,reg8
11
ADC reg16/mem16,reg16
12
ADC reg8,reg8/mem8
13
ADC reg16,reg16/mem16
14
ADC al,immed8
15
ADC ax,immed16
16
PUSH ss
17
POP ss
18
SBB reg8/mem8,reg8
19
SBB reg16/mem16,reg16
1A
SBB reg8,reg8/mem8
1B
SBB reg16,reg16/mem16
1C
SBB al,immed8
1D
SBB ax,immed16
1E
PUSH ds
1F
POP ds
20
AND reg8/mem8,reg8
21
AND reg16/mem16,reg16
22
AND reg8,reg8/mem8
23
AND reg16,reg16/mem16
24
AND al,immed8
25
AND ax,immed16
26
Segment override
27
DAA
28
SUB reg8/mem8,reg8
29
SUB reg16/mem16,reg16
2A
SUB reg8,reg8/mem8
2B
SUB reg16,reg16/mem16
2C
SUB al,immed8
2D
SUB ax,immed16
2E
Segment override
2F
DAS
30
XOR reg8/mem8,reg8
31
XOR reg16/mem16,reg16
32
XOR reg8,reg8/mem8
33
XOR reg16,reg16/mem16
34
XOR al,immed8
35
XOR ax,immed16
36
Segment override
37
AAA
38
CMP reg8/mem8,reg8
39
CMP reg16/mem16,reg16
3A
CMP reg8,reg8/mem8
3B
CMP reg16,reg16/mem16
3C
CMP al,immed8
3D
CMP ax,immed16
3E
Segment override
3F
AAS
40
INC ax
41
INC cx
42
INC dx
43
INC bx
44
INC sp
45
INC bp
46
INC si
47
INC di
48
DEC ax
49
DEC cx
4A
DEC dx
4B
DEC bx
4C
DEC sp
4D
DEC bp
4E
DEC si
4F
DEC di
50
PUSH ax
51
PUSH cx
52
PUSH dx
53
PUSH bx
54
PUSH sp
55
PUSH bp
56
PUSH si
57
PUSH di
58
POP ax
59
POP cx
5A
POP dx
5B
POP bx
5C
POP sp
5D
POP bp
5E
POP si
5F
POP di
60
PUSHA
61
POPA
62
BOUND reg16/mem16,reg16
63
Not used
64
Not used
65
Not used
66
Not used
67
Not used
68
PUSH immed16
69
IMUL reg16/mem16,immed16
6A
PUSH immed8
6B
IMUL reg8/mem8,immed8
6C
INSB
6D
INSW
6E
OUTSB
6F
OUTSW
70
JO immed8
71
JNO immed8
72
JB immed8
73
JNB immed8
74
JZ immed8
75
JNZ immed8
76
JBE immed8
77
JA immed8
78
JS immed8
79
JNS immed8
7A
JP immed8
7B
JNP immed8
7C
JL immed8
7D
JNL immed8
7E
JLE immed8
7F
JG immed8
80
Table2 reg8
81
Table2 reg16
82
Table2 reg8
83
Table2 reg8, reg16
84
TEST reg8/mem8,reg8
85
TEST reg16/mem16,reg16
86
XCHG reg8,reg8
87
XCHG reg16,reg16
88
MOV reg8/mem8,reg8
89
MOV reg16/mem16,reg16
8A
MOV reg8,reg8/mem8
8B
MOV reg16,reg16/mem16
8C
MOV reg16/mem16,segReg
8D
LEA reg16,reg16/mem16
8E
MOV segReg,reg16/mem16
8F
POP reg16/mem16
90
NOP
91
XCHG ax,cx
92
XCHG ax,dx
93
XCHG ax,bx
94
XCHG ax,sp
95
XCHG ax,bp
96
XCHG ax,si
97
XCHG ax,di
98
CBW 99CWD
9A
CALL immed32
9B
WAIT
9C
PUSHF
9D
POPF
9E
SAHF
9F
LAHF
A0
MOV al,[mem8]
A1
MOV ax,[mem16]
A2
MOV [mem8],al
A3
MOV [mem16],ax
A4
MOVSB
A5
MOVSW
A6
CMPSB
A7
CMPSW
A8
TEST al,[mem8]
A9
TEST ax,[mem16]
AA
STOSB
AB
STOSW
AC
LODSB
AD
LODSW
AE
SCASB
AF
SCASW
B0
MOV al,immed8
B1
MOV cl,immed8
B2
MOV dl,immed8
B3
MOV bl,immed8
B4
MOV ah,immed8
B5
MOV ch,immed8
B6
MOV dh,immed8
B7
MOV bh,immed8
B8
MOV ax,immed16
B9
MOV cx,immed16
BA
MOV dx,immed16
BB
MOV bx,immed16
BC
MOV sp,immed16
BD
MOV bp,immed16
BE
MOV si,immed16
BF
MOV di,immed16
C0
Table1 reg8
C1
Table1 reg8, reg16
C2
RET immed16
C3
RET
C4
LES reg16/mem16,mem16
C5
LDS reg16/mem16,mem16
C6
MOV reg8/mem8,immed8
C7
MOV reg16/mem16,immed16
C8
ENTER immed16, immed8
C9
LEAVE
CA
RET immed16
CB
RET
CC
INT 3
CD
INT immed8
CE
INTO
CF
IRET
D0
Table1 reg8
D1
Table1 reg16
D2
Table1 reg8
D3
Table1 reg16
D4
AAM
D5
AAD
D6
Not used
D7
XLAT [bx]
D8
ESC immed8
D9
ESC immed8
DA
ESC immed8
DB
ESC immed8
DC
ESC immed8
DD
ESC immed8
DE
ESC immed8
DF
ESC immed8
E0
LOOPNE immed8
E1
LOOPE immed8
E2
LOOP immed8
E3
JCXZ immed8
E4
IN al,immed8
E5
IN ax,immed16
E6
OUT al,immed8
E7
OUT ax,immed16
E8
CALL immed16
E9
JMP immed16
EA
JMP immed32
EB
JMP immed8
EC
IN al,dx
ED
IN ax,dx
EE
OUT al,dx
EF
OUT ax,dx
F0
LOCK
F1
Not used
F2
REPNE
F3
REP
F4
HLT
F5
CMC
F6
Table3 reg8
F7
Table3 reg16
F8
CLC
F9
STC
FA
CLI
FB
STI
FC
CLD
FD
STD
FE
Table4 reg8
FF
Table4 reg16
本页共522段，7684个字符，8418 Byte(字节)