条件跳转参考

1.无符号数的条件转移指令

指令的助忆符

JE/JZ
ZF=1 Jump Equal or Jump Zero

JNE/JNZ
ZF=0 Jump Not Equal or Jump Not Zero

JA/JNBE
CF=0 and ZF=0 Jump Above or Jump Not Below or Equal

JAE/JNB
CF=0 Jump Above or Equal or Jump Not Below

JB/JNAE
CF=1 Jump Below or Jump Not Above or Equal

JBE/JNA
CF=1 or AF=1 Jump Below or Equal or Jump Not Above


2.有符号数的条件转移指令

指令的助忆符

JE/JZ
ZF=1 Jump Equal or Jump Zero

JNE/JNZ
ZF=0 Jump Not Equal or Jump Not Zero

JG/JNLE
ZF=0 and SF=OF Jump Greater or Jump Not Less or Equal

JGE/JNL
SF=OF Jump Greater or Equal or Jump Not Less

JL/JNGE
SF≠OF Jump Less or Jump Not Greater or Equal

JLE/JNG
ZF=1 or SF≠OF Jump Less or Equal or Jump Not Greater

3.特殊算术标志位的条件转移指令

指令的助忆符
检测的转移条件 功能描述
JC
CF=1 Jump Carry

JNC
CF=0 Jump Not Carry

JO
OF=1 Jump Overflow

JNO
OF=0 Jump Not Overflow

JP/JPE
PF=1 Jump Parity or Jump Parity Even

JNP/JPO
PF=0 Jump Not Parity or Jump Parity Odd

JS
SF=1 Jump Sign (negative)

JNS
SF=0 Jump No Sign (positive)