* indicates 286+ only (not available in 8088/8086).
ш indicates 386 and/or 486 and/or Pentium
                                                                         
    x0       x1       x2       x3       x4       x5       x6       x7    
                                                                           
0x  ADD      ADD      ADD      ADD      ADD      ADD      PUSH     POP     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   ES       ES      
                                                                           
1x  ADC      ADC      ADC      ADC      ADC      ADC      PUSH     POP     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   SS       SS      
                                                                           
2x  AND      AND      AND      AND      AND      AND      SEG      DAA     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   ES               
                                                                           
3x  XOR      XOR      XOR      XOR      XOR      XOR      SEG      AAA     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   SS               
                                                                           
4x  INC      INC      INC      INC      INC      INC      INC      INC     
  AX       CX       DX       BX       SP       BP       SI       DI      
                                                                           
5x  PUSH     PUSH     PUSH     PUSH     PUSH    PUSH      PUSH     PUSH    
  AX       CX       DX       BX       SP      BP        SI       DI      
                                                                           
6x  * PUSHA  * POPA   * BOUND  ARPL    ш SEG FS ш SEG GS шopSize  шaddrSiz 
                                                        prefix   prefix  
                                                                           
7x  JO       JNO      JB/      JNB/     JE/      JNE/     JBE/     JNBE/   
                    JNAE     JAE      JZ       JNZ      JNA      JA      
                                                                           
8x  ArOp1    ArOp1    ArOp2    ArOp2    TEST     TEST     XCHG     XCHG    
 r/m,im8  r/m,im16 r/m8,im8 rm16,im8 r/m,r8   r/m,r16  r8,r/m   r16,r/m  
                                                                           
9x  NOP      XCHG     XCHG     XCHG     XCHG     XCHG     XCHG     XCHG    
           AX,CX    AX,DX    AX,BX    AX,SP    AX,BP    AX,SI    AX,DI   
                                                                           
Ax  MOV      MOV      MOV      MOV      MOVSB    MOVSW    CMPSB    CMPSW   
 AL,mem8  AX,mem16 mem8,AL  mem16,AX                                     
                                                                           
Bx  MOV      MOV      MOV      MOV      MOV      MOV      MOV      MOV     
  AL,im8   CL,im8   DL,im8   BL,im8   AH,im8   CH,im8   DH,im8   BH,im8  
                                                                           
Cx * ShfOp  * ShfOp  RET near RET near  LES      LDS      MOV      MOV     
 r/m8,imm r/m16,im   im16            r16,mem  r16,mem  mem,im8  mem,im16 
                                                                           
Dx  ShfOp    ShfOp    ShfOp    ShfOp    AAM      AAD               XLAT    
 r/m8,1   r/m16,1  r/m8,CL  r/m16,CL                                     
                                                                           
Ex  LOOPNE/  LOOPE/   LOOP     JCXZ     IN       IN       OUT      OUT     
  LOOPNZ   LOOPZ            шJECXZ   AL,port8 AX,port8 AL,port8 AX,port8 
                                                                           
Fx  LOCK              REP/     REPZ/    HALT     CMC      Grp1     Grp1    
                    REPNE    REPE                      r/m8     r/m16    
                                                                           
    x0       x1       x2       x3       x4       x5       x6       x7    
                                                                         
                                                                         
    x8       x9       xA       xB       xC       xD       xE       xF    
                                                                           
0x  OR       OR       OR       OR       OR       OR       PUSH    ш*Extnsn 
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   CS       OpCode  
                                                                           
1x  SBB      SBB      SBB      SBB      SBB      SBB      PUSH     POP     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   DS       DS      
                                                                           
2x  SUB      SUB      SUB      SUB      SUB      SUB      SEG      DAS     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   CS               
                                                                           
3x  CMP      CMP      CMP      CMP      CMP      CMP      SEG      AAS     
  r/m,r8  r/m,r16   r8,r/m  r16,r/m   AL,im8  AX,im16   DS               
                                                                           
4x  DEC      DEC      DEC      DEC      DEC      DEC      DEC      DEC     
  AX       CX       DX       BX       SP       BP       SI       DI      
                                                                           
5x  POP      POP      POP      POP      POP     POP       POP      POP     
  AX       CX       DX       BX       SP      BP        SI       DI      
                                                                           
6x  * PUSH   * IMUL   * PUSH   * IMUL   * INSB   * INSW  * OUTSB  * OUTSW  
  imm16   r/m,im16  imm8    r/m,im8                                      
                                                                           
7x  JS       JNS      JP/      JNP/     JL/      JNL/     JLE/     JNLE/   
                    JPE      JPO      JNG      JGE      JNG      JG      
                                                                           
8x  MOV      MOV      MOV      MOV      MOV      LEA      MOV      POP     
 r/m,r8   r/m,r16  r8,r/m   r16,r/m  r/m,seg  r16,mem  seg,r/m   r/m     
                                                                           
9x  CBW      CWD      CALL     WAIT     PUSHF    POPF     SAHF     LAHF    
                    far                                                  
                                                                           
Ax  TEST     TEST     STOSB    STOSW    LODSB    LODSW    SCASB    SCASW   
 AL,mem8  AX,mem16                                                       
                                                                           
Bx  MOV      MOV      MOV      MOV      MOV      MOV      MOV      MOV     
 AX,im16  CX,im16  DX,im16  BX,im16  SP,im16  BP,im16  SI,im16  DI,im16  
                                                                           
Cx * ENTER  * LEAVE  RET far  RET far   INT 3    INT      INTO     IRET    
 im16,im8            im16                      im8                       
                                                                           
Dx  ESC 0    ESC 1    ESC 2    ESC 3    ESC 4    ESC 5    ESC 6    ESC 7   
  387/486  387/486  387/486  387/486  387/486  387/486  387/486  387/486 
                                                                           
Ex  CALL     JMP      JMP      JMP      IN       IN       OUT      OUT     
  near     near     far      short    AL,DX    AX,DX    AL,DX    AX,DX   
                                                                           
Fx  CLC      STC      CLI      STI      CLD      STD      Grp2     Grp3    
                                                        r/m8     r/m16   
                                                                           
    x8       x9       xA       xB       xC       xD       xE       xF    
                                                                         

Instruction Set Matrix