📄 附录.htm
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<DIV>long</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>长整型数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>register</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储种类说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>使用<SPAN>CPU内部寄存的变量</SPAN></DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>return</DIV></TD>
<TD width=180 vborder="1">
<DIV>程序语句</DIV></TD>
<TD width=261 vborder="1">
<DIV>函数返回</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>short</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>短整型数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>signed</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>有符号数，二进制数据的最高位为符号位</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>sizeof</DIV></TD>
<TD width=180 vborder="1">
<DIV>运算符</DIV></TD>
<TD width=261 vborder="1">
<DIV>计算表达式或数据类型的字节数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>static</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储种类说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>静态变量</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>struct</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>结构类型数据</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>swicth</DIV></TD>
<TD width=180 vborder="1">
<DIV>程序语句</DIV></TD>
<TD width=261 vborder="1">
<DIV>构成<SPAN>switch选择结构</SPAN></DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>typedef</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>重新进行数据类型定义</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>union</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>联合类型数据</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>unsigned</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>无符号数数据</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>void</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>无类型数据</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>volatile</DIV></TD>
<TD width=180 vborder="1">
<DIV>数据类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>该变量在程序执行中可被隐含地改变</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>while</DIV></TD>
<TD width=180 vborder="1">
<DIV>程序语句</DIV></TD>
<TD width=261 vborder="1">
<DIV>构成<SPAN>while和do..while循环结构</SPAN></DIV></TD></TR></TBODY></TABLE>
<DIV align=center>附表1－1 ANSIC标准关键字</DIV>
<DIV align=center><BR> </DIV>
<TABLE cellSpacing=0 cellPadding=0 align=center border=1>
<TBODY>
<TR>
<TD width=127 vborder="1">
<DIV align=center>关键字</DIV></TD>
<TD width=180 vborder="1">
<DIV align=center>用 途</DIV></TD>
<TD width=261 vborder="1">
<DIV align=center>说 明</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>bit</DIV></TD>
<TD width=180 vborder="1">
<DIV>位标量声明</DIV></TD>
<TD width=261 vborder="1">
<DIV>声明一个位标量或位类型的函数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>sbit</DIV></TD>
<TD width=180 vborder="1">
<DIV>位标量声明</DIV></TD>
<TD width=261 vborder="1">
<DIV>声明一个可位寻址变量</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>Sfr</DIV></TD>
<TD width=180 vborder="1">
<DIV>特殊功能寄存器声明</DIV></TD>
<TD width=261 vborder="1">
<DIV>声明一个特殊功能寄存器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>Sfr16</DIV></TD>
<TD width=180 vborder="1">
<DIV>特殊功能寄存器声明</DIV></TD>
<TD width=261 vborder="1">
<DIV>声明一个<SPAN>16位的特殊功能寄存器</SPAN></DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>data</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>直接寻址的内部数据存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>bdata</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>可位寻址的内部数据存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>idata</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>间接寻址的内部数据存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>pdata</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>分页寻址的外部数据存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>xdata</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>外部数据存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>code</DIV></TD>
<TD width=180 vborder="1">
<DIV>存储器类型说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>程序存储器</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>interrupt</DIV></TD>
<TD width=180 vborder="1">
<DIV>中断函数说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>定义一个中断函数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>reentrant</DIV></TD>
<TD width=180 vborder="1">
<DIV>再入函数说明</DIV></TD>
<TD width=261 vborder="1">
<DIV>定义一个再入函数</DIV></TD></TR>
<TR>
<TD width=127 vborder="1">
<DIV>using</DIV></TD>
<TD width=180 vborder="1">
<DIV>寄存器组定义</DIV></TD>
<TD width=261 vborder="1">
<DIV>定义芯片的工作寄存器</DIV></TD></TR></TBODY></TABLE>
<DIV align=center><BR> </DIV>
<DIV align=center><FONT
align="center">附录二 AT89C51特殊功能寄存器列表（适用于同一架构的芯片）<BR>带*号的特殊功能寄存器都是可以位寻址的寄存器</FONT></DIV>
<TABLE cellSpacing=0 cellPadding=0 align=center border=1>
<TBODY>
<TR>
<TD width=189 vborder="1">
<DIV align=center>符 号</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>地 址</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>注 释</DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>*ACC</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>E0H</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>累加器</DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>*B</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>F0H</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>乘法寄存器</DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>*PSW</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>D0H</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>程序状态字</DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>SP</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>81H</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>堆栈指针</DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>DPL</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>82H</DIV></TD>
<TD width=190 vborder="1">
<DIV align=center>数据存储器指针低<SPAN>8位</SPAN></DIV></TD></TR>
<TR>
<TD width=189 vborder="1">
<DIV align=center>DPH</DIV></TD>
<TD width=190 vborder="1">
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