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<td></td><td>-338-</td><td></td> <!頁碼>
<td colspan=6>PC機匯編語言實戰(zhàn)精解</td><td colspan=4></td><td colspan=6 align="right"><img src="icons/flag.gif"></td> <!書名>
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<td colspan=17 align=right><font face="黑體">續(xù)表</font></td>
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<td width=6%>偏移</td><td width=6%>長度</td><td width=13% align=center>位定義<br>7654 3210</td><td width=55%>說明</td><td width=20%>備注</td>
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<td width=6%>72H</td><td width=6%>字</td><td width=13% align=center></td><td width=55%>復(fù)位標(biāo)志：<br>00064H：不變方式<br>01234H：跳過內(nèi)存測試（熱啟動）<br>04321H：保護(hù)內(nèi)存（用于PS/2）<br>05678H：系統(tǒng)掛起（用于便攜機）<br>09ABCH：環(huán)境（MFG）測試（用于便攜機）<br>0ABCDH：電源自檢循環(huán)（用于便攜機）</td><td width=20%></td>
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<td width=6%>74H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>最近一次硬盤操作狀態(tài)</td><td width=20%></td>
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<td width=6%>75H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>硬盤驅(qū)動器數(shù)</td><td width=20%></td>
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<td width=6%>76H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>硬盤驅(qū)動器控制（僅用于XT機）</td><td width=20%></td>
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<td width=6%>77H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>硬盤控制器端口（僅用于XT機）</td><td width=20%></td>
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<td width=6%>78H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>并行打印適配器LPT1超時值</td><td width=20%></td>
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<td width=6%>79H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>并行打印適配器LPT2超時值</td><td width=20%></td>
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<td width=6%>7AH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>并行打印適配器LPT3超時值</td><td width=20%></td>
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<td width=6%>7BH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>并行打印適配器LPT4超時值</td><td width=20%></td>
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<td width=6%>7CH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>串口適配器COM1超時值</td><td width=20%></td>
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<td width=6%>7DH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>串口適配器COM2超時值</td><td width=20%></td>
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<td width=6%>7EH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>串口適配器COM3超時值</td><td width=20%></td>
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<td width=6%>7FH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>串口適配器COM4超時值</td><td width=20%></td>
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<td width=6%>80H</td><td width=6%>字</td><td width=13% align=center></td><td width=55%>鍵盤緩沖區(qū)首地址偏移指針</td><td width=20%></td>
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<td width=6%>82H</td><td width=6%>字</td><td width=13% align=center></td><td width=55%>鍵盤緩沖區(qū)尾地址偏移指針</td><td width=20%></td>
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<td width=6%>84H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>EGA/VGA：屏幕顯示行數(shù)，為真正顯示行數(shù)減1</td><td width=20%></td>
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<td width=6%>85H</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>EGA/VGA：字符高度</td><td width=20%></td>
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<td width=6%>87H</td><td width=6%>字節(jié)</td><td width=13% align=center><br>*... ....<br>.**. ....<br><br>.... 0...<br>.... .*..<br>.... ..0.<br>.... ..1.<br>.... ...0<br>.... ...1</td><td width=55%>VGA顯示控制狀態(tài)<br>消除顯示RAM<br>顯示卡上的存儲容量<br> 00：64K 01：128K 10：192K 11：256K<br>EGA/VGA顯示卡<br>等待顯示有效<br>彩色/ECD顯示器<br>單色顯示器<br>在350線方式下使用ECD顯示器變換光標(biāo)<br>禁止光標(biāo)變換</td><td width=20%></td>
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<td width=6%>88H</td><td width=6%>字節(jié)</td><td width=13% align=center><br>**** ....<br>.... ****</td><td width=55%>EGA/VGA交換數(shù)據(jù)<br>特征連接位<br>選項交換位</td><td width=20%></td>
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<td width=6%>89H</td><td width=6%>字節(jié)</td><td width=13% align=center><br>*... ....</td><td width=55%>EGA/VGA控制位<br>200線</td><td width=20%></td>
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<td width=6%>89H</td><td width=6%>字節(jié)</td><td width=13% align=center>...* ....<br>.... *...<br>.... .*..<br>.... ..*.</td><td width=55%>400線<br>未加載調(diào)色板<br>單色顯示器<br>灰度縮放</td><td width=20%></td>
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<td width=6%>8AH</td><td width=6%>字節(jié)</td><td width=13% align=center></td><td width=55%>顯示組合碼表（DCC）索引</td><td width=20%></td>
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