📄 lesson5013.htm
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(8) BL: </font>
<font face="宋体" color="#000000">列出所有的断点</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "BL"; </font>
<font face="宋体" color="#000000">它会把所有断点按从</font> <font face="Times New Roman" color="#000000"> 0 </font>
<font face="宋体" color="#000000">开始的编号列出</font> <font face="Times New Roman" color="#000000">;</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(9) BC: </font>
<font face="宋体" color="#000000">清除断点</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "BC </font>
<font face="宋体" color="#000000">断点编号</font> <font face="Times New Roman" color="#000000">", </font>
<font face="宋体" color="#000000">这个编号就是</font> <font face="Times New Roman" color="#000000"> BL </font>
<font face="宋体" color="#000000">列出的那个</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">还有一种格式为</font> <font face="Times New Roman" color="#000000"> "BC *", </font>
<font face="宋体" color="#000000">作用是清除所有的断点</font> <font face="Times New Roman" color="#000000">.</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(10) RFL: </font>
<font face="宋体" color="#000000">改变标志字</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "RFL </font>
<font face="宋体" color="#000000">标志位</font> <font face="Times New Roman" color="#000000">"; </font>
<font face="宋体" color="#000000">比如当前</font> <font face="Times New Roman" color="#000000"> Z </font>
<font face="宋体" color="#000000">标志位</font> <font face="Times New Roman" color="#000000"> (</font>
<font face="宋体" color="#000000">零位</font> <font face="Times New Roman" color="#000000">) </font>
<font face="宋体" color="#000000">为置位状态</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">执行</font> <font face="Times New Roman" color="#000000"> "rfl z" </font>
<font face="宋体" color="#000000">之后会被清楚</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">如果</font> <font face="Times New Roman" color="#000000"> C </font>
<font face="宋体" color="#000000">标志位为清除状态</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">那么</font> <font face="Times New Roman" color="#000000"> "rfl c" </font>
<font face="宋体" color="#000000">将使之置位</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">比如</font> <font face="Times New Roman" color="#000000">:</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 486</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:rfl z</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 4f9</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> 这次就真可以</font> <font face="Times New Roman" color="#000000"> G </font>
<font face="宋体" color="#000000">到</font> <font face="Times New Roman" color="#000000"> 4F9 </font>
<font face="宋体" color="#000000">处了</font> <font face="Times New Roman" color="#000000">.</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(11) A: </font>
<font face="宋体" color="#000000">进入</font> <font face="Times New Roman" color="#000000"> WINICE </font>
<font face="宋体" color="#000000">小汇编状态</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "A </font>
<font face="宋体" color="#000000">地址</font> <font face="Times New Roman" color="#000000">"; </font>
<font face="宋体" color="#000000">也可以不加地址值</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">直接在当前</font> <font face="Times New Roman" color="#000000"> CS:IP </font>
<font face="宋体" color="#000000">处汇编</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">举例</font> <font face="Times New Roman" color="#000000">:</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 486</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:a 2400:0486</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">2400:0486 jnz 4f9</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">2400:0488 (</font>
<font face="宋体" color="#000000">按下</font> <font face="Times New Roman" color="#000000"> ENTER </font>
<font face="宋体" color="#000000">键结束汇编</font> <font face="Times New Roman" color="#000000">)</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 4f9</font>
</span></p>
<p> <span class="p9"><font face="宋体" color="#000000"> 也可以</font> <font face="Times New Roman" color="#000000"> G </font>
<font face="宋体" color="#000000">到</font> <font face="Times New Roman" color="#000000"> 4F9 </font>
<font face="宋体" color="#000000">处</font> <font face="Times New Roman" color="#000000">.</font>
</span></p>
<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(12) E: </font>
<font face="宋体" color="#000000">进入</font> <font face="Times New Roman" color="#000000"> WINICE </font>
<font face="宋体" color="#000000">内存修改状态</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "E </font>
<font face="宋体" color="#000000">地址</font> <font face="Times New Roman" color="#000000">"; </font>
<font face="宋体" color="#000000">也可以不加地址值</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">直接在</font> <font face="Times New Roman" color="#000000"> DS:DX </font>
<font face="宋体" color="#000000">处修改</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">比如</font> <font face="Times New Roman" color="#000000">:</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:e 2400:0485</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">2400:0485 - 09 74 XX XX XX XX XX XX XX XX XX XX XX XX XX XX</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(</font>
<font face="宋体" color="#000000">光标停在</font> <font face="Times New Roman" color="#000000"> 09 </font>
<font face="宋体" color="#000000">下面</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">我们输入</font> <font face="Times New Roman" color="#000000"> 09 EB, </font>
<font face="宋体" color="#000000">然后按</font> <font face="Times New Roman" color="#000000"> ENTER </font>
<font face="宋体" color="#000000">结束修改</font> <font face="Times New Roman" color="#000000">)</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">2400:0485 - 09 EB XX XX XX XX XX XX XX XX XX XX XX XX XX XX</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> 然后</font> <font face="Times New Roman" color="#000000"> "g 4f9" </font>
<font face="宋体" color="#000000">就可以到</font> <font face="Times New Roman" color="#000000"> 4F9 </font>
<font face="宋体" color="#000000">啦</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">我们输入的</font> <font face="Times New Roman" color="#000000"> EB </font>
<font face="宋体" color="#000000">是</font> <font face="Times New Roman" color="#000000"> JMP </font>
<font face="宋体" color="#000000">的机器码</font> <font face="Times New Roman" color="#000000">.</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(13) U: </font>
<font face="宋体" color="#000000">反汇编</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "U </font>
<font face="宋体" color="#000000">地址</font> <font face="Times New Roman" color="#000000">", </font>
<font face="宋体" color="#000000">也可以不加地址</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">直接在当前</font> <font face="Times New Roman" color="#000000"> CS:IP (EIP) </font>
<font face="宋体" color="#000000">往后反汇编</font> <font face="Times New Roman" color="#000000"> 12 </font>
<font face="宋体" color="#000000">行</font> <font face="Times New Roman" color="#000000"> (</font>
<font face="宋体" color="#000000">行数由</font> <font face="Times New Roman" color="#000000"> CODE </font>
<font face="宋体" color="#000000">栏的宽度而定</font> <font face="Times New Roman" color="#000000">).</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">(14) R: </font>
<font face="宋体" color="#000000">更改寄存器的值</font> <font face="Times New Roman" color="#000000">; </font>
<font face="宋体" color="#000000">格式为</font> <font face="Times New Roman" color="#000000"> "R </font>
<font face="宋体" color="#000000">寄存器名</font> <font face="Times New Roman" color="#000000">=</font>
<font face="宋体" color="#000000">值</font> <font face="Times New Roman" color="#000000">", </font>
<font face="宋体" color="#000000">也可以不加值</font> <font face="Times New Roman" color="#000000">, WINICE </font>
<font face="宋体" color="#000000">会让你在最上面的寄存器区直接修改</font> <font face="Times New Roman" color="#000000">, </font>
<font face="宋体" color="#000000">用光标键可以在各个位之间移动</font> <font face="Times New Roman" color="#000000">. </font>
<font face="宋体" color="#000000">比如</font> <font face="Times New Roman" color="#000000">:</font>
</span></p>
<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 484</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:r ax=0009</font>
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<p> <span class="p9"><font face="宋体" color="#000000"> </font> <font face="Times New Roman" color="#000000">:g 4f9</font>
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