成考院校在线答案
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">30、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">在汇编语言中，寻找操作数的过程就是操作数的寻址，一般来说，存放在指令代码中的操作数称为立即数，存放在<span lang="EN-US">CPU</span>的内部寄存器中的操作数称为寄存器操作数，存放在内部存储器中的操作数称为存储器操作数。</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">27、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">中断服务程序的入口地址称为中断向量。每个中断向量占个字节，其中，两个低字节存放中断服务程序的，两个高字节存放中断服务程序的<span lang="EN-US">4</span>偏移地址段地址。</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">14、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">指令<span lang="EN-US">MOV MYDAT [BX][SI], ES:AX</span>有错，错误为<span lang="EN-US">AX</span>寄存器不能使用段超越，指令<span lang="EN-US">MOV BYTE PTR [BX], 1000</span>有错，错误为<span lang="EN-US">1000</span>超过了一个字节的范围。</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">24、<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei; color:black;mso-font-kerning:0pt;mso-bidi-language:AR">SP</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">称为堆栈指示器，它用来存放当前栈顶的<span lang="EN-US">EA</span>。</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">25、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">调用程序与子程序之间的参数传递方法有三种，即寄存器、存储器（存储单元、地址表）和堆栈。</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">8、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">某数据段的逻辑地址为<span lang="EN-US">0FAA0:600,</span>则数据段的段地址为<span lang="EN-US">FAA0h,</span>偏移地址为<span lang="EN-US">600h</span>，物理地址为<span lang="EN-US">FB000h</span>。</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">28、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">当标志位<span lang="EN-US">CF=1</span>时表示无符号数运算产生溢出，而当标志位<span lang="EN-US">OF=1 </span>是表示带符号数运算产生溢出。</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">6、<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei; color:black;mso-font-kerning:0pt;mso-bidi-language:AR">PC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">机中，既可作为八位又可作为十六位寄存器使用的寄存器为<span lang="EN-US">AX</span>、<span lang="EN-US">BX</span>、<span lang="EN-US">CX</span>、<span lang="EN-US">DX</span>。</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">28、<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei; color:black;mso-font-kerning:0pt;mso-bidi-language:AR">PC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">机中，可作为间接寻址的寄存器为<span lang="EN-US">BX,BP,SI,DI</span>。可作为<span lang="EN-US">8</span>位和<span lang="EN-US">16</span>位的寄存器为<span lang="EN-US">AX,BX,CX,DX</span>。</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan">36、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR">数<span lang="EN-US">-27</span>的补码表示是<span lang="EN-US">11100101</span>（<span lang="EN-US">8</span>位），扩展到<span lang="EN-US">16</span>位为<span lang="EN-US">1111111111100101</span>。</span><span lang="EN-US" style="font-size: 12.0pt;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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