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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" size=3><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></SPAN></FONT></SPAN>&nbsp;</P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" 
size=3>如下一些原因造成BIOS将某个内存段标记为AddressRangeReserved:</FONT></P>
<UL>
  <LI><FONT face="Times New Roman TUR" size=3>这个地址范围包含着系统ROM； </FONT>
  <LI><FONT face="Times New Roman TUR" size=3>这个地址范围包含着被ROM使用的RAM； </FONT>
  <LI><FONT face="Times New Roman TUR" size=3>这个地址范围被用作系统设备内存映射； </FONT>
  <LI><FONT face="Times New Roman TUR" 
  size=3>这个地址范围由于某种原因,不适合被标准设备用作设备内存空间。</FONT></LI></UL><FONT 
face="Times New Roman TUR" size=3>
<HR width="100%" SIZE=1>
</FONT>
<P><STRONG><FONT face="Times New Roman TUR">Assumptions and 
Limitations</FONT></STRONG></P>
<UL>
  <LI><FONT face="Times New Roman TUR" size=3>BIOS返回那些描述大块内存的地址范围，随后是ISA/PCI内存； 
  </FONT>
  <LI><FONT face="Times New Roman TUR" size=3>BIOS不返回被用作PCI设备,ISA可选ROM，以及ISA 
  plus&amp;play卡的内存映象，这是因为OS有相应的机制可以检测到它们； </FONT>
  <LI><FONT face="Times New Roman TUR" size=3>BIOS返回芯片定义的地址空洞，这些地址作为保留不会被设备使用； 
  </FONT>
  <LI><FONT face="Times New Roman TUR" size=3>被定义的大块内存被映射到IO设备的地址范围作为保留地址将会被返回； 
  </FONT>
  <LI><FONT face="Times New Roman TUR" 
  size=3>系统BIOS的所有occurrences将会被作为保留内存返回，这包括低于1M的内存，在16M(如果存在)处的内存，以及在地址空间(4G)结尾处的内存； 
  </FONT>
  <LI><FONT face="Times New Roman TUR" 
  size=3>标准的PC地址范围不会被报告，例如在地址A0000到BFFF的被用作video 
  memory的内存；从E0000到EFFFF的内存是主板指定的，将会被报告； </FONT>
  <LI><FONT face="Times New Roman TUR" 
  size=3>所有的低位内存作为正常的内存将会被报告，处理为规范保留的标准RAM是OS的责任，例如，中断向量表(0:0)以及BIOS数据区(40:0)。</FONT></LI></UL></SPAN></SPAN></SPAN><FONT 
size=+0><FONT size=+0><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
size=+0><FONT face="Times New Roman TUR"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" size=3>
<HR width="100%" SIZE=1>
</FONT>
<P><FONT face="Times New Roman TUR" size=4><STRONG>Example address 
map</STRONG></FONT></P>
<P><FONT face="Times New Roman TUR">这个地址映象样例描述了一个具有128MB 
RAM的计算机,其中包括640KB的基本内存，以及127M的扩展内存。在640KB的基本内存中，639KB归用户使用，1K作为扩展BIOS数据区。以12MB位置为起始，存在一个LFB(Liner 
Frame Buffer)，被芯片创建的内存空洞是从8MB到16MB，这个内存空洞是APIC设备的内存映象。IO单元处于FEC00000, 
本地单元处于FEE00000,系统的BIOS被重映射到(4G-64K)的位置上。<BR>注意，第一块内存，也就是基本内存的639K的终点位置，被报告在BIOS数据段40:13。</FONT></SPAN></SPAN></FONT></FONT></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" 
size=3>"ARM"表示AddressRangeMemory，"ARR"是AddressRangeReserved。</FONT></SPAN></SPAN></SPAN></P><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=1>
  <TBODY>
  <TR>
    <TD><STRONG><FONT face="Times New Roman TUR">Base 
    Address</FONT></STRONG></TD>
    <TD><STRONG><FONT face="Times New Roman TUR">Length</FONT></STRONG></TD>
    <TD><STRONG><FONT face="Times New Roman TUR">Type</FONT></STRONG></TD>
    <TD><STRONG><FONT 
  face="Times New Roman TUR">Description</FONT></STRONG></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">0000:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">639K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARM</FONT></TD>
    <TD><FONT face="Times New Roman TUR">可以使用的基本内存(也就是通过INT 
    12获取的内存容量)</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">0009:FC00</FONT></TD>
    <TD><FONT face="Times New Roman TUR">1K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT 
  face="Times New Roman TUR">为BIOS保留的内存；这个区域包括扩展BIOS数据区.</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">000F:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">64K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT face="Times New Roman TUR">系统BIOS</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">0010:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">7M</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARM</FONT></TD>
    <TD><FONT face="Times New Roman TUR">扩展内存,它没有64M的地址范围限制</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">0080:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">8M</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT face="Times New Roman TUR">芯片内存空洞,用于支持在12MB位置的LFB映射</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">0100:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">120M</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARM</FONT></TD>
    <TD><FONT face="Times New Roman TUR">在芯片内存空洞之上的大块内存RAM</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">FEC0:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">4K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT face="Times New Roman TUR">被映射到FEC00000的IO 
      APIC内存，注意不同的厂商的APIC所需要的地址范围可能不一样</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">FEE0:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">4K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT face="Times New Roman TUR">本地APIC内存映射</FONT></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">FFFF:0000</FONT></TD>
    <TD><FONT face="Times New Roman TUR">64K</FONT></TD>
    <TD><FONT face="Times New Roman TUR">ARR</FONT></TD>
    <TD><FONT 
face="Times New Roman TUR">重映射的系统BIOS</FONT></TD></TR></TBODY></TABLE></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman TUR" 
size=3></FONT>&nbsp;</P></SPAN></SPAN></SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman TUR" 
size=3></FONT></P><FONT face="Times New Roman TUR" size=3>
<HR width="100%" SIZE=2>
</FONT>
<P></P>
<P><STRONG><FONT face="Times New Roman TUR" size=5>1.6.3 INT 15h, AX=E801h - Get 
Memory Size for Large Configurations</FONT></STRONG></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman TUR" 
size=3>E801h只能在Real Mode下使用。</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman TUR" 
size=3></FONT></SPAN></SPAN></SPAN>&nbsp;</P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" size=3><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">最初,这种方式是为EISA服务定义的，这个接口能够报告多达4G的RAM。然而它不象E820h方式那么通用，E820h在更多的系统上可以使用。</SPAN></SPAN></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" size=3><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></SPAN></FONT></SPAN>&nbsp;</P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT 
face="Times New Roman TUR" size=3>输入：<BR></FONT>
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=1>
  <TBODY>
  <TR>
    <TD><STRONG><FONT face="Times New Roman TUR">Register</FONT></STRONG></TD>
    <TD><STRONG><FONT face="Times New Roman TUR">Meaning</FONT></STRONG></TD>
    <TD><STRONG><FONT 
  face="Times New Roman TUR">Description</FONT></STRONG></TD></TR>
  <TR>
    <TD><FONT face="Times New Roman TUR">AX</FONT></TD>
    <TD><FONT face="Times New Roman TUR">功能码</FONT></TD>
    <TD><FONT 
face="Times New Roman TUR">E801h</FONT></TD></TR></TBODY></TABLE></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT
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