Binary Arithmetic Instructions

Name	Description	Code	Operation	operands	operand size
Binary Arithmetic Instructions
add	Add (set CF if overflow)	add dest,source	dest = dest + source	reg, reg reg, mem mem, reg reg, const mem, const	byte word dword
sub	Subtract (set CF if borrow)	sub dest,source	dest = dest - source
adc	Add with Carry	adc dest,source	dest = dest + source + CF
sbb	Subtract with borrow	sbb dest,source	dest = dest - source - CF
cmp	Compare (update flags as sub)	cmp op1,op2	op1 - op2
xadd	Exchange and Add	xadd dest,source	source = dest, dest = dest + source
neg	Negate (two-complement)	neg op	op = 0 - op (signed)	reg mem	byte word dword
inc	Increment (does not affect CF)	inc op	op = op + 1
dec	Decrement (does not affect CF)	dec op	op = op - 1
all the above binary arthimetic instruction update SF,ZF,PF and OF flags
mul	Multiply (unsigned) (set CF and OF when upper half is nozero)	mul op	ax = al * op	reg mem	byte
			dx:ax = ax * op		word
			edx:eax = eax * op		dword
div	Divide (unsigned)	div op	al = ax / op, ah = rest		byte
			ax = dx:ax / op, dx = rest		word
			eax = edx:eax / op, edx = rest		dword
imul	Signed Integer Multiply	imul op	ax = al * op	reg mem	byte
			dx:ax = ax * op		word
			edx:eax = eax * op		dword
		imul dest,source	dest = dest * source	reg, reg reg, mem reg, const	word,word dword,dword
		imul dest,source,const	dest = source * const	reg,reg,const reg,mem,const	word,word,word dword,dword,dword
idiv	Signed Integer Divide	idiv op	al = ax / op, ah = rest	reg mem	byte
			ax = dx:ax / op, dx = rest		word
			eax = edx:eax / op, edx = rest		dword