(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(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) 字节交换;
XCHD (Exchange low-order Digit) 低半字节交换;
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)
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位交换;
(4)控制转移类指令(17种助记符)
ACALL(Absolute subroutine Call)子程序绝对调用;
LCALL(Long subroutine Call)子程序长调用;
RET(Return from subroutine)子程序返回;
RETI(Return from Interruption)中断返回;
SJMP(Short Jump)短转移;LJMP长转移;
AJMP(Absolute Jump)绝对转移;
CJNE (Compare Jump if Not Equal)比较不相等则转移;
DJNZ (Decrement Jump if Not Zero)减1后不为0则转移;
JZ (Jump if Zero)结果为0则转移;
JNZ (Jump if Not Zero) 结果不为0则转移;
JC (Jump if the Carry flag is set)有进位则转移;
JNC (Jump if Not Carry)无进位则转移;
JB (Jump if the Bit is set)位为1则转移;
JNB (Jump if the Bit is Not set) 位为0则转移;
(3)JBC(Jump if the Bit is set and Clear the bit) 位为1则转移,并清除该位;
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.目的地址传送指令。
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、程序转移指令
1》无条件转移指令(长转移)
JMP----》jump
CALL----》call
RET----》return
RETF----》return far
2》条件转移指令(短转移,-128到+127的距离内)
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》循环控制指令(短转移)
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》中断指令
INT----》interrupt
INTO----》overflow interrupt
IRET----》interrupt return
5》处理器控制指令
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
评论
查看更多