34 ib         XOR AL, imm8 AL                 XOR imm8

35 iw         XOR AX, imm16 AX         XOR imm16

35 id         XOR EAX, imm32 EAX         XOR imm32

80 /6 ib         XOR r/m8,imm8 r/m8         XOR imm8

81 /6 iw         XOR r/m16,imm16 r/m16         XOR imm16

81 /6 id         XOR r/m32,imm32 r/m32         XOR imm32

83 /6 ib         XOR r/m16,imm8 r/m16         XOR imm8 (sign-extended)

83 /6 ib         XOR r/m32,imm8 r/m32         XOR imm8 (sign-extended)

30 / r         XOR r/m8,r8 r/m8                 XOR r8

31 / r         XOR r/m16,r16 r/m16         XOR r16

31 / r         XOR r/m32,r32 r/m32         XOR r32

32 / r         XOR r8,r/m8 r8                 XOR r/m8

33 / r         XOR r16,r/m16 r8                 XOR r/m8

33 / r         XOR r32,r/m32 r8                 XOR r/m8


Description

Performs a bitwise exclusive OR (XOR) operation on the destination (first) and source (second) operands and stores the result in the destination operand location. The source operand can be an immediate, a register, or a memory location; the destination operand can be a register or a memory location. (However, two memory operands cannot be used in one instruction.) Each bit of the result is 1 if the corresponding bits of the operands are different; each bit is 0 if the corresponding bits are the same.


Operands        Bytes                Clocks

reg, reg             2                     1   UV

mem, reg          2+d(0,2)         3   UV

reg, mem          2+d(0,2)         2   UV

reg, imm          2+i(1,2)         1   UV

mem, imm          2+d(0,2)+i(1,2)        3   UV*

acc, imm          1+i(1,2)          1   UV


* = not pairable if there is a displacement and immediate


Flags

The OF and CF flags are cleared; the SF, ZF, and PF flags are set according to the result. The state of the AF flag is undefined

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