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I

Name	Operator	Operand	Operation Name
idiv	idiv	r/m8	Signed Divide
	idiv	r/m16, %ax
	idiv	r/m32, %eax

imul	imul	r/m8	Signed Multiply
	imul	r/m16
	imul	r/m32
	imul	r/m16,r16
	imul	r/m32,r32
	imul	$ imm8,r/m16,r16
	imul	$ imm8,r/m32,r32
	imul	$ imm8,r16
	imul	$ imm8,r32
	imul	$ imm16,r/m16,r16
	imul	$ imm32,r/m32,r32
	imul	$ imm16,r16
	imul	$ imm32,r32

in	in	$ imm8, %al	Input from Port
	in	$ imm8, %ax
	in	$ imm8, %eax
	in	%dx , %al
	in	%dx , %ax
	in	%dx , %eax

inc	inc	r/m8	Increment by 1
	inc	r/m16
	inc	r/m32
	inc	r16
	inc	r32

ins/insb/insw/insd			Input from Port to String
	ins
	insb
	insw
	insd

int/into	int	3	Call to Interrupt Procedure
	int	$ imm8
	into

invd	invd		Invalidate Cache (i486-specific)

invlpg	invlpg	m	Invalidate TLB Entry (i486-specific)

iret/iretd	iret		Interrupt Return
	iretd

Mac OS X Assembler Reference: i386 Addressing Modes and Assembler Instructions