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<DIV class=tit>汇编语言指令集(二)</DIV>
<DIV class=date>2007-10-03 上午 08:51</DIV>
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      <P><FONT color=#ff0000 size=5>汇编语言指令集(二)</FONT></P>
      <P><FONT color=#0000ff size=4><FONT 
      color=#ff00ff>五、程序转移指令</FONT><BR>───────────────────────────────────────<BR>　1&gt;无条件转移指令 
      (长转移)<BR>JMP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 无条件转移指令<BR>CALL 
      过程调用<BR>RET/RETF过程返回.<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2&gt;条件转移指令 
      (短转移,-128到+127的距离内)<BR>( 当且仅当(SF XOR OF)=1时,OP1&lt;OP2 )<BR>JA/JNBE 
      不小于或不等于时转移.<BR>JAE/JNB 大于或等于转移.<BR>JB/JNAE 小于转移.<BR>JBE/JNA 
      小于或等于转移.<BR>以上四条,测试无符号整数运算的结果(标志C和Z).<BR>JG/JNLE 大于转移.<BR>JGE/JNL 
      大于或等于转移.<BR>JL/JNGE 小于转移.<BR>JLE/JNG 
      小于或等于转移.<BR>以上四条,测试带符号整数运算的结果(标志S,O和Z).<BR>JE/JZ&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      等于转移.<BR>JNE/JNZ 不等于时转移.<BR>JC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      有进位时转移.<BR>JNC 无进位时转移.<BR>JNO 不溢出时转移.<BR>JNP/JPO 奇偶性为奇数时转移.<BR>JNS 符号位为 
      "0" 时转移.<BR>JO&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 溢出转移.<BR>JP/JPE
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