8086微处理器中的程序执行传输指令

先决条件– 8085微处理器中的分支指令

程序执行转移指令类似于分支指令，并且是指由于执行分支指令而将执行切换到不同指令序列的动作。

程序执行转移指令的两种类型是：

1. 无条件的
2. 有条件的

1.无条件程序执行转移指令–这些指令始终执行。

Opcode	Operand	Explanation	Example
CALL	address	calls a subroutine and saves the return address on the stack	CALL 2050
RET	none	returns from the subroutine to the main program	RET
JUMP	address	transfers the control of execution to the specified address	JUMP 2050
LOOP	address	loops through a sequence of instructions until CX=0	LOOP 2050

在此可以直接或间接指定地址。

2.条件程序执行转移指令：这些指令仅在指定条件为真时执行。

Opcode	Operand	Explanation	Example
JC	address	jump if CF = 1	JC 2050
JNC	address	jump if CF = 0	JNC 2050
JZ	address	jump if ZF = 1	JZ 2050
JNZ	address	jump if ZF = 0	JNZ 2050
JO	address	jump if OF = 1	JO 2050
JNO	address	jump if OF = 0	JNO 2050
JP	address	jump if PF = 1	JP 2050
JNP	address	jump if PF = 0	JNP 2050
JPE	address	jump if PF = 1	JPE 2050
JPO	address	jump if PF = 0	JPO 2050
JS	address	jump if SF = 1	JS 2050
JNS	address	jump if SF = 0	JNS 2050
JA	address	jump if CF=0 and ZF=0	JA 2050
JNBE	address	jump if CF=0 and ZF=0	JNBE 2050
JAE	address	jump if CF=0	JAE 2050
JNB	address	jump if CF=0	JNB 2050
JBE	address	jump if CF = 1 or ZF = 1	JBE 2050
JNA	address	jump if CF = 1 or ZF = 1	JNA 2050
JE	address	jump if ZF = 1	JE 2050
JG	address	jump if ZF = 0 and SF = OF	JG 2050
JNLE	address	jump if ZF = 0 and SF = OF	JNLE 2050
JGE	address	jump if SF = OF	JGE 2050
JNL	address	jump if SF = OF	JNL 2050
JL	address	jump if SF != OF	JL 2050
JNGE	address	jump if SF != OF	JNGE 2050
JLE	address	jump if ZF = 1 or SF != OF	JLE 2050
JNG	address	jump if ZF = 1 or SF != OF	JNG 2050
JCXZ	address	jump if CX = 0	JCXZ 2050
LOOPE	address	loop while ZF = 1 and CX = 0	LOOPE 2050
LOOPZ	address	loop while ZF = 1 and CX = 0	LOOPZ 2050
LOOPNE	address	loop while ZF = 0 and CX = 0	LOOPNE 2050
LOOPNZ	address	loop while ZF = 0 and CX = 0	LOOPNZ 2050

在此可以直接或间接指定地址。
CF为进位标志
ZF为零标志
OF是溢出标志
PF是奇偶校验标志
SF是标志标志
CX是寄存器