当前位置: 首页 > 工具软件 > JCC > 使用案例 >

汇编 JCC指令表

周正真
2023-12-01

JCC指条件跳转指令,CC就是指条件码。

JCC指令中文含义英文原意检查符号位典型C应用
JZ/JE若为0则跳转;若相等则跳转jump if zero;jump if equalZF=1if (i == j);if (i == 0);
JNZ/JNE若不为0则跳转;若不相等则跳转jump if not zero;jump if not equalZF=0if (i != j);if (i != 0);
JS若为负则跳转jump if signSF=1if (i < 0);
JNS若为正则跳转jump if not signSF=0if (i > 0);
JP/JPE若1出现次数为偶数则跳转jump if Parity (Even)PF=1(null)
JNP/JPO若1出现次数为奇数则跳转jump if not parity (odd)PF=0(null)
JO若溢出则跳转jump if overflowOF=1(null)
JNO若无溢出则跳转jump if not overflowOF=0(null)
JC/JB/JNAE若进位则跳转;若低于则跳转;若不高于等于则跳转jump if carry;jump if below;jump if not above equalCF=1if (i < j);
JNC/JNB/JAE若无进位则跳转;若不低于则跳转;若高于等于则跳转;jump if not carry;jump if not below;jump if above equalCF=0if (i >= j);
JBE/JNA若低于等于则跳转;若不高于则跳转jump if below equal;jump if not aboveZF=1或CF=1if (i <= j);
JNBE/JA若不低于等于则跳转;若高于则跳转jump if not below equal;jump if aboveZF=0或CF=0if (i > j);
JL/JNGE若小于则跳转;若不大于等于则跳转jump if less;jump if not greater equalSF != OFif (si < sj);
JNL/JGE若不小于则跳转;若大于等于则跳转;jump if not less;jump if greater equalSF = OFif (si >= sj);
JLE/JNG若小于等于则跳转;若不大于则跳转jump if less equal;jump if not greaterZF != OF 或 ZF=1if (si <= sj);
JNLE/JG若不小于等于则跳转;若大于则跳转jump if not less equal;jump if greaterSF=0F 且 ZF=0if(si>sj)
 类似资料: