内部ram与外部ram互换指令,动态ram和静态ram都是什么

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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)

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;

ORL(OR Logic) 逻辑或;

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;

AJMP(Absolute Jump)绝对转移;

LJMP(Long Jump)长转移;

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;

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 。

内部ram与外部ram互换指令,动态ram和静态ram都是什么(1)

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