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Small RTOS51是为51系列单片机而编写的。它是完全免费的、源代码公开的多任务实时操作系统。它可在无任何外部数据存储器的单片80C51系统上运行

    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">以间接地址为目的地址的数据移动指令</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH04/MOVX/Movx1.asm">MOVX指令</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><A HREF="ch04/MOVC/movc.Uv2">查表指令</A></TD>
    <TD>&nbsp;</TD>
    <TD>根据累加器A中的数（0-5），用查表的方法求平方值。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH04/STACK/stack.Uv2">堆栈操作</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">用堆栈操作的方法交换片内RAM中40H单元与57H单元的内容。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH04/CHANG/chang.Uv2">数据交换</a></TD>
    <TD>&nbsp;</TD>
    <TD>XCH及XCHD指令演示</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><A HREF="ch04/exec/exec41.Uv2">数据移动综合练习</A></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">用于学习Keil软件用法的一个例子。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199" HEIGHT="17"><A HREF="ch04/exec/EXEC.avi">数据移动合练习动画</A></TD>
    <TD WIDTH="60" HEIGHT="17">&nbsp;</TD>
    <TD WIDTH="525" HEIGHT="17">演示Keil软件调试的基本方法</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD HEIGHT="17"><a href="CH04/LOGIC/logic.Uv2">累加器A的逻辑操作</a></TD>
    <TD HEIGHT="17">&nbsp;</TD>
    <TD HEIGHT="17">验证逻辑运算类指令</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD HEIGHT="17"><a href="CH04/ANL/anl.Uv2">逻辑与指令</a></TD>
    <TD HEIGHT="17">&nbsp;</TD>
    <TD HEIGHT="17">验证逻辑与的指令</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD HEIGHT="17"><a href="CH04/Temp/temp.uv2">测温控制</a></TD>
    <TD HEIGHT="17">&nbsp;</TD>
    <TD HEIGHT="17">CJNE指令的用法</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD HEIGHT="17"><a href="CH04/compare/compare.Uv2">两数比较大小</a></TD>
    <TD HEIGHT="17">&nbsp;</TD>
    <TD HEIGHT="17">比较片内RAM Number1和Number2两个单元中的无符号数的大小</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199" HEIGHT="17"><a href="CH04/NADD/NADD.Uv2">双字节加法</a></TD>
    <TD WIDTH="60" HEIGHT="17">&nbsp;</TD>
    <TD WIDTH="525" HEIGHT="17">将（R2R3）和（R6R7）两个双字节无符号数相加，结果送R4，R5。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH04/NSUB/nsub.Uv2">双字节减法</a></TD>
    <TD>&nbsp;</TD>
    <TD>将（R2R3）和（R6R7）两个双字节无符号数相减，结果送R4，R5。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH04/NMUL/nmul.uv2">双字节乘法</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">将（R2R3）和（R6R7）两个双字节无符号数相乘，结果送R4R5R6R7。</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD colspan="3" background="images/bg11.gif"> 
      <div align="center"><font color="#006633">第 五 章</font></div></TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD height="25"><a href="CH05/5-1/501.uv2">串行口驱动数码管</a></TD>
    <TD height="25">例5.1</TD>
    <TD height="25">串行显示接口电路的子程序清单</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD height="25"><a href="CH05/5-2/ser.Uv2">任意I/O口模拟串口</a></TD>
    <TD height="25">例5.2</TD>
    <TD height="25">用任意两根I/O口线模拟串行接口</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD height="25"><a href="ch05/5-3/disp.Uv2">数码管显示0和1</a></TD>
    <TD height="25">例5.3</TD>
    <TD height="25">该实例可由实验仿真板演示</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD height="24"><a href="ch05/5-4/disp2.Uv2">数码管显示程序</a></TD>
    <TD height="24">例5.4</TD>
    <TD height="24">用定时器中断做的显示程序</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH05/5-4/5-4.avi">数据管显示程序演示</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">用实验仿真板演示的效果图</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH05/5-5/key.Uv2">键控LED流水灯</a></TD>
    <TD WIDTH="60">例5.5</TD>
    <TD WIDTH="525">&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH05/5-5/5-5.avi">键控LED流水灯演示</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">用实验仿真板演示的效果图</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="CH05/AD0831/AD0831.Uv2">ADC0831驱动程序</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">8位串行A/D转换器ADC0831的驱动程序</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH05/DA/da.Uv2">TLC5615驱动程序</a></TD>
    <TD>&nbsp;</TD>
    <TD>10位串行D/A转换器TLC5615的驱动程序</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="ch05/VIIC/viic.asm" target="_blank">I<font size="3">2</font>C串行总线驱动程序</a></TD>
    <TD>&nbsp;</TD>
    <TD>何立民教授编写</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="ch05/5045/5045.asm">X5045驱动程序</a></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD WIDTH="199"><a href="ch05/yj/yjdrv.asm">字符型液晶显示器驱动程序</a></TD>
    <TD WIDTH="60">&nbsp;</TD>
    <TD WIDTH="525">&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD colspan="3" background="images/bg11.gif"> 
      <div align="center"><font color="#006633">第 六 章</font></div></TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/SEC1/sec1.Uv2">秒表</a></TD>
    <TD>例6.1</TD>
    <TD>0－59循环</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/SEC1/Sec.avi">秒表演示</a></TD>
    <TD>&nbsp;</TD>
    <TD>用实验仿真板演示的效果图</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/SEC2/sec2.Uv2">预置值倒计时秒表</a></TD>
    <TD>例6.2</TD>
    <TD>任意设置总计数量，从1到该值循环</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/SEC2/sec.avi">预置值倒计时秒表演示</a></TD>
    <TD>&nbsp;</TD>
    <TD>用实验仿真板演示的效果图</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/24C01/TST24.Uv2">24C01综合应用实例</a></TD>
    <TD>例6.3</TD>
    <TD>&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="CH06/5045/5045.Uv2">X5045综合应用实例</a></TD>
    <TD>例6.4</TD>
    <TD>&nbsp;</TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD colspan="3" background="images/bg11.gif"> 
      <div align="center"><font color="#006633">附　　录</font></div></TD>
  </TR>
  <TR VALIGN="MIDDLE"> 
    <TD><a href="fl/dpj8.uv2">DPJ8实验仿真板显示1~8</a> </TD>
    <TD>例D.1</TD>
    <TD>&nbsp;</TD>
  </TR>
</TABLE>
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