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51单片机的汇编语言指令中英文对照

51单片机的汇编语言指令中英文对照-51单片机常用汇编语言助记符英文全称 51单片机常用汇编语言助记符英文全称 (1)数据传送类指令(7种助记符) MOV(英文为Move):对内部数据寄存器RAM和特殊功能寄存器SFR的数据进行传送; MOVC(MoveCode)读取程序存储器数据表格的数据传送。

(1)数据传送类指令(7种助记符)

MOV(英文为Move):对内部数据寄存器RAM和特别功用寄存器SFR的数据进行传送;

MOVC(Move Code)读取程序存储器数据表格的数据传送;

MOVX (Move External RAM) 对外部RAM的数据传送;

XCH (Exchange) 字节交流;

XCHD (Exchange low-order Digit) 低半字节交流;

PUSH (Push onto Stack) 入栈;

POP  (Pop from Stack) 出栈;

(2)算术运算类指令(8种助记符)

ADD(AddiTIon) 加法;

ADDC(Add with Carry) 带进位加法;

SUBB(Subtract with Borrow) 带借位减法;

DA(Decimal Adjust) 十进制调整;

INC(Increment) 加1;DEC(Decrement) 减1;

MUL(MulTIplicaTIon、MulTIply) 乘法;

DIV(Division、Divide) 除法;

(3)逻辑运算类指令(10种助记符)

ANL(AND Logic) 逻辑与;

XRL(Exclusive-OR Logic) 逻辑异或;

CLR(Clear) 清零;CPL(Complement) 取反;

RL(Rotate left) 循环左移;

RLC(Rotate Left throught the Carry flag) 带进位循环左移;

RR(Rotate Right) 循环右移;

RRC (Rotate Right throught the Carry flag) 带进位循环右移;

SWAP (Swap) 低4位与高4位交流;

(4)操控搬运类指令(17种助记符)

ACALL(Absolute subroutine Call)子程序肯定调用;

LCALL(Long subroutine Call)子程序长调用;

RET(Return from subroutine)子程序回来;

RETI(Return from Interruption)中止回来;

SJMP(Short Jump)短搬运;LJMP长搬运;

AJMP(Absolute Jump)肯定搬运;

CJNE (Compare Jump if Not Equal)比较不相等则搬运;

DJNZ (Decrement Jump if Not Zero)减1后不为0则搬运;

JZ (Jump if Zero)成果为0则搬运;

JNZ (Jump if Not Zero) 成果不为0则搬运;

JC (Jump if the Carry flag is set)有进位则搬运;

JNC (Jump if Not Carry)无进位则搬运;

JB (Jump if the Bit is set)位为1则搬运;

JNB (Jump if the Bit is Not set) 位为0则搬运;

(3)JBC(Jump if the Bit is set and Clear the bit) 位为1则搬运,并铲除该位;

NOP (No Operation) 空操作;

(5)位操作指令(1种助记符)

SETB(Set Bit) 位 置1 。

1.通用数据传送指令。

MOV—-》 move

MOVSX—-》extended move with sign data

MOVZX—-》extended move with zero data

PUSH—-》push POP—-》pop

PUSHA—-》push all

POPA—-》pop all

PUSHAD—-》push all data

POPAD—-》pop all data

BSWAP—-》byte swap

XCHG—-》exchange

CMPXCHG—-》compare and change

XADD—-》exchange and add

XLAT—-》translate

2.输入输出端口传送指令。

IN—-》input

OUT—-》output

3.意图地址传送指令。

LEA—-》load effective address

LDS—-》load DS

LES—-》load ES

LFS—-》load FS

LGS—-》load GS

LSS—-》load SS

4.标志传送指令。

LAHF—-》load AH from flag

SAHF—-》save AH to flag

PUSHF—-》push flag POPF—-》pop flag

PUSHD—-》push dflag POPD—-》pop dflag

二、算术运算指令

ADD—-》add

ADC—-》add with carry

INC—-》increase 1

AAA—-》ascii add with adjust

DAA—-》decimal add with adjust

SUB—-》substract

SBB—-》substract with borrow

DEC—-》decrease 1

NEC—-》negative

CMP—-》compare

AAS—-》ascii adjust on substract

DAS—-》decimal adjust on substract

MUL—-》multiplication

IMUL—-》integer multiplication

AAM—-》ascii adjust on multiplication

DIV—-》divide

IDIV—-》integer divide

AAD—-》ascii adjust on divide

CBW—-》change byte to word

CWD—-》change word to double word

CWDE—-》change word to double word with sign to EAX

CDQ—-》change double word to quadrate word

三、逻辑运算指令

AND—-》and

OR—-》or

XOR—-》xor

NOT—-》not

TEST—-》test

SHL—-》shift left

SAL—-》arithmatic shift left

SHR—-》shift right

SAR—-》arithmatic shift right

ROL—-》rotate left

ROR—-》rotate right

RCL—-》rotate left with carry

RCR—-》rotate right with carry

四、串指令

MOVS—-》move string

CMPS—-》compare string

SCAS—-》scan string

LODS—-》load string

STOS—-》store string

REP—-》repeat

REPE—-》repeat when equal

REPZ—-》repeat when zero flag

REPNE—-》repeat when not equal

REPNZ—-》repeat when zero flag

REPC—-》repeat when carry flag

REPNC—-》repeat when not carry flag

五、程序搬运指令

1》无条件搬运指令(长搬运)

JMP—-》jump

CALL—-》call

RET—-》return

RETF—-》return far

2》条件搬运指令(短搬运,-128到+127的间隔内)

JAE—-》jump when above or equal

JNB—-》jump when not below

JB—-》jump when below

JNAE—-》jump when not above or equal

JBE—-》jump when below or equal

JNA—-》jump when not above

JG—-》jump when greater

JNLE—-》jump when not less or equal

JGE—-》jump when greater or equal

JNL—-》jump when not less

JL—-》jump when less

JNGE—-》jump when not greater or equal

JLE—-》jump when less or equal

JNG—-》jump when not greater

JE—-》jump when equal

JZ—-》jump when has zero flag

JNE—-》jump when not equal

JNZ—-》jump when not has zero flag

JC—-》jump when has carry flag

JNC—-》jump when not has carry flag

JNO—-》jump when not has overflow flag

JNP—-》jump when not has parity flag

JPO—-》jump when parity flag is odd

JNS—-》jump when not has sign flag

JO—-》jump when has overflow flag

JP—-》jump when has parity flag

JPE—-》jump when parity flag is even

JS—-》jump when has sign flag

3》循环操控指令(短搬运)

LOOP—-》loop

LOOPE—-》loop equal

LOOPZ—-》loop zero

LOOPNE—-》loop not equal

LOOPNZ—-》loop not zero

JCXZ—-》jump when CX is zero

JECXZ—-》jump when ECX is zero

4》中止指令

INT—-》interrupt

INTO—-》overflow interrupt

IRET—-》interrupt return

5》处理器操控指令

HLT—-》halt

WAIT—-》wait

ESC—-》escape

LOCK—-》lock

NOP—-》no operation

STC—-》set carry

CLC—-》clear carry

CMC—-》carry make change

STD—-》set direction

CLD—-》clear direction

STI—-》set interrupt

CLI—-》clear interrupt

六、伪指令

DW—-》define word

PROC—-》procedure

ENDP—-》end of procedure

SEGMENT—-》segment

ASSUME—-》assume

ENDS—-》end segment(段, 节,片断)

END—-》end

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