Intel 2 80386 Instructions, 2dLogical Instructions, 2a Data Transfer, 2c String Instructions

80386

2.4.2 80386 Instructions

	Table 2-2a Data Transfer
	GENERAL PURPOSE
MOV	Move operand
PUSH	Push operand onto stack
POP	Pop operand off stack
PUSHA	Push all registers on stack
POPA	Pop all registers off stack
XCHG	Exchange Operand, Register
XLAT	Translate
	CONVERSION
MOVZX	Move byte or Word, Dword, with zero
	extension
MOVSX	Move byte or Word, Dword, sign
	extended
CBW	Convert byte to Word, or Word to Dword
CWO	Convert Word to DWORD
CWDE	Convert Word to DWORD extended
COO	Convert DWORD to aWORD
	INPUT!OUTPUT
IN	Input operand from I/O space
OUT	Output operand to I/O space
	ADDRESS OBJECT
LEA	Load effective address
LOS	Load pointer into 0 segment register
LES	Load pointer into E segment register
LFS	Load pointer into F segment register
LGS	Load pOinter into G segment register
LSS	Load pointer into S (Stack) segment
	register
	FLAG MANIPULATION
LAHF	Load A register from Flags
SAHF	Store A register in Flags
PUSHF	Push flags onto stack
POPF	Pop flags off stack
PUSHFD	Push EFlags onto stack
POPFD	Pop EFlags off stack
CLC	Clear Carry Flag
CLD	Clear Direction Flag
CMC	Complement Carry Flag
STC	Set Carry Flag
STD	Set Direction Flag

Table 2-2b Arithmetic Instructions

	ADDITION
ADD	Add operands
ADC	Add with carry
INC	Increment operand by 1
AAA	ASCII adjust for addition
DAA	Decimal adjust for addition
	SUBTRACTION
SUB	Subtract operands
SBB	Subtract with borrow
DEC	Decrement operand by 1
NEG	Negate operand
CMP	Compare operands
DAS	Decimal adjust for subtraction
AAS	ASCII Adjust for subtraction
	MULTIPLICATION
MUL	Multiply Double/Single Precision
IMUL	Integer multiply
AAM	ASCII adjust after multiply
	DIVISION
DIV	Divide unsigned
IDIV	Integer Divide
AAD	ASCII adjust before division
	Table 2-2c String Instructions
MOVS	Move byte or Word, Dword string
INS	Input string from I/O space
OUTS	Output string to I/O space
CMPS	Compare byte or Word, Dword string
SCAS	Scan Byte or Word, Dword string
LODS	Load byte or Word, Dword string
STOS	Store byte or Word, Dword string
REP	Repeat
REPE/
REPZ	Repeat while equal/zero
RENE!
REPNZ	Repeat while not equal/not zero
	Table 2-2dLogical Instructions
	LOGICALS
NOT	"NOT" operands
AND	"AND" operands
OR	"Inclusive OR" operands
XOR	"Exclusive OR" operands
TEST	"Test" operands

15