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                <td align="right"><b><font style="font-size:16px" color="#990000">—— 
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          <td colspan="2"><font style="font-size:16px" color="#000000"><b>>> <a href="index.htm">PIC12C5XX单片机应用与设计</a> 
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          <td align="center"><b><font size="3">PIC12C5XX 指令集及程序设计技巧</font></b></td>
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          <td> <p>&nbsp;</p></td>
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          <td height="300"> <p ><b><font size="2">§</font></b><font size="2"><b>2.1&nbsp; 
              PIC12C5XX 指令概述</b></font>&nbsp;</p>
            <p  > <span class="lh15">PIC12C5XX每条指令长12位,指令由操作码和操作数组成。PIC12C5XX共有33条指令,按操作分成三大类:<br>
              &nbsp;&nbsp; 1、面向字节操作类<br>
              &nbsp;&nbsp; 2、面向位操作类<br>
              &nbsp;&nbsp; 3、常数操作和控制操作类。</span></p>
            <p  >全部指令如表2.1所示。 
            <table border="0" cellspacing="1" cellpadding="3" bgcolor="#000000" width="100%" align="center" >
              <tr bgcolor="#FFFFFF"> 
                <td width="416" colspan="5" rowspan="3"> <p >面向字节操作类指令</p></td>
                <td width="70" > <p >(11-6)</p></td>
                <td width="56" colspan="4" > <p >(5)</p></td>
                <td width="63" colspan="3" > <p >(4-0)</p></td>
                <td width="70" colspan="3" > <p >&nbsp; </p></td>
              </tr>
              <tr> 
                <td width="77" colspan="2" bgcolor="#FFFFFF" > OPCODE</td>
                <td width="35" colspan="2" bgcolor="#FFFFFF" > d</td>
                <td width="77" colspan="4" bgcolor="#FFFFFF" > f(FILE#)</td>
                <td width="70" colspan="3"  bgcolor="#FFFFFF"> <p >&nbsp; </p></td>
              </tr>
              <tr> 
                <td width="77" colspan="2" bgcolor="#FFFFFF" > <p >&nbsp; </p></td>
                <td width="56" colspan="4" bgcolor="#FFFFFF" > <p >&nbsp; </p></td>
                <td width="56" colspan="2" bgcolor="#FFFFFF"> <p >&nbsp; </p></td>
                <td width="70" colspan="3" bgcolor="#FFFFFF" > <p >&nbsp; </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="416" colspan="5" > <p >二进制代码&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                    HEX&nbsp; 名称&nbsp;&nbsp;&nbsp;&nbsp; 助记符,操作数&nbsp;&nbsp; 操作</p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5"> <p >状态影响</p></td>
                <td width="70" colspan="3" > <p >注</p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0000 0000 0000 </p></td>
                <td width="42" > <p >000 </p></td>
                <td width="80" > <p >空操作 </p></td>
                <td width="101" > <p >NOP </p></td>
                <td width="81" > <p >&nbsp; </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >无 </p></td>
                <td width="70" colspan="3" > <p >&nbsp; </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0000 001f ffff </p></td>
                <td width="42" > <p >02f </p></td>
                <td width="80" > <p >W送到f </p></td>
                <td width="101" > <p >MOVWF f </p></td>
                <td width="81"> <p >W→f </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >无 </p></td>
                <td width="70" colspan="3"> <p >1,4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0000 0100 0000 </p></td>
                <td width="42"> <p >040 </p></td>
                <td width="80" > <p >W清零 </p></td>
                <td width="101" > <p >CLRW - </p></td>
                <td width="81" > <p >0→W </p></td>
                <td width="77" colspan="2"> <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >Z </p></td>
                <td width="70" colspan="3" > <p >&nbsp; </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112"> <p >0000 011f ffff </p></td>
                <td width="42" > <p >06f </p></td>
                <td width="80" > <p >f清零 </p></td>
                <td width="101" > <p >CLRF f </p></td>
                <td width="81"> <p >0→f </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >Z </p></td>
                <td width="70" colspan="3" > <p >4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0000 10df ffff </p></td>
                <td width="42" > <p >08f </p></td>
                <td width="80" > <p >f减去W </p></td>
                <td width="101" > <p >SUBWF f,d </p></td>
                <td width="81" > <p >f-W→d </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28"> <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >C,DC,Z </p></td>
                <td width="70" colspan="3" > <p >1,2,4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112"> <p >0000 11df ffff </p></td>
                <td width="42" > <p >0Cf </p></td>
                <td width="80" > <p >f递减 </p></td>
                <td width="101" > <p >DECF f,d </p></td>
                <td width="81" > <p >f-1→d </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >Z </p></td>
                <td width="70" colspan="3" > <p >2,4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0001 00df ffff </p></td>
                <td width="42" > <p >10f </p></td>
                <td width="80" > <p >W和f做或运算 </p></td>
                <td width="101" > <p >IORWF f,d </p></td>
                <td width="81" > <p >W∨f→d </p></td>
                <td width="77" colspan="2" > <p >&nbsp; </p></td>
                <td width="28"> <p >&nbsp; </p></td>
                <td width="84" colspan="5"> <p >Z </p></td>
                <td width="70" colspan="3" > <p >2,4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0001 01df ffff </p></td>
                <td width="42" > <p >14f </p></td>
                <td width="80" > <p >W和f做与运算 </p></td>
                <td width="101" > <p >ANDWF f,d </p></td>
                <td width="81" > <p >W∧f→d </p></td>
                <td width="77" colspan="2"> <p >&nbsp; </p></td>
                <td width="28" > <p >&nbsp; </p></td>
                <td width="84" colspan="5" > <p >Z </p></td>
                <td width="70" colspan="3" > <p >2,4 </p></td>
              </tr>
              <tr bgcolor="#FFFFFF"> 
                <td width="112" > <p >0001 10df ffff </p></td>
                <td width="42" > <p >18f </p></td>

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