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<h1 class="mume-header" id="%E5%AE%9E%E9%AA%8C%E4%B8%89">实验三</h1>
<h2 class="mume-header" id="12%E5%AD%90%E7%A8%8B%E5%BA%8F%E8%AE%BE%E8%AE%A1%E4%B8%80">(1/2)子程序设计一</h2>
<h3 class="mume-header" id="%E4%B8%80-%E5%9F%BA%E7%A1%80%E6%80%A7%E5%AE%9E%E9%AA%8C">一. 基础性实验</h3>
<h4 class="mume-header" id="1-%E5%AE%9E%E9%AA%8C%E7%9B%AE%E7%9A%84">1. 实验目的</h4>
<ol>
<li>掌握主程序和子程序之间的调用关系及其调用方法.</li>
<li>掌握子程序调用过程中近程调用与远程调用的区别。</li>
<li>掌握子程序设计方法,能合理划分子程序.</li>
<li>掌握汇编子程序的定义/调用/返回/参数传递等有关问题的实现,以及运行过程中的堆栈和标志位变化情况.</li>
</ol>
<h4 class="mume-header" id="2-%E5%AE%9E%E9%AA%8C%E5%86%85%E5%AE%B9">2. 实验内容</h4>
<p>用堆栈传送参数和参数表地址方式,编制键入 <strong>8-bit非压缩 BCD 码</strong> 加法并显示的程序.</p>
<h4 class="mume-header" id="3-%E5%AE%9E%E9%AA%8C%E4%BB%AA%E5%99%A8%E8%AE%BE%E5%A4%87">3. 实验仪器设备</h4>
<ul>
<li>硬件环境: AMD Ryzen 9.</li>
<li>软件环境: Windows XP Pro SP3 (in VMware Workstation 16 Pro).</li>
<li>编辑程序: Visual Studio Code 1.62.3.</li>
<li>调试程序: <code>DEBUG.EXE</code>.</li>
<li>编译程序: <code>MASM.EXE</code>.</li>
<li>连接程序: <code>LINK.EXE</code>.</li>
</ul>
<h4 class="mume-header" id="4-%E5%AE%9E%E9%AA%8C%E6%AD%A5%E9%AA%A4">4. 实验步骤</h4>
<ol>
<li>检查并修改原程序</li>
<li>编译和连接</li>
<li>用单步方式运行程序</li>
</ol>
<pre data-role="codeBlock" data-info="batch" class="language-batch"><span class="token command"><span class="token keyword keyword-debug">debug</span> <span class="token number">5</span><span class="token number">-1</span>.exe</span>
</pre><pre data-role="codeBlock" data-info="py" class="language-python"><span class="token operator">-</span>t
</pre><ol start="4">
<li>检查并记录各寄存器和存储单元内容的变化<br>
<img src="./5/5-1.png" alt></li>
</ol>
<h4 class="mume-header" id="5-%E6%80%9D%E8%80%83%E9%A2%98">5. 思考题</h4>
<h5 class="mume-header" id="1-%E8%AF%B4%E6%98%8E%E8%B0%83%E7%94%A8%E6%8C%87%E4%BB%A4-call-%E5%92%8C%E6%97%A0%E6%9D%A1%E4%BB%B6%E8%BD%AC%E7%A7%BB%E6%8C%87%E4%BB%A4-jmp-%E7%9A%84%E5%8C%BA%E5%88%AB%E5%8F%8A%E5%BA%94%E7%94%A8">(1) 说明调用指令 <code>CALL</code> 和无条件转移指令 <code>JMP</code> 的区别及应用.</h5>
<p><code>JMP</code> 指令永久地改变程序计数器,不在堆栈中留下信息.<br>
<code>CALL</code> 指令在堆栈中留下信息,这样可以恢复原来的程序执行顺序. <code>CALL</code> 是一条将程序控制权转移到子程序的指令,目的是回到主程序中.<br>
<code>JMP</code> 常用于形成循环和直接跳转.<br>
<code>CMP</code> 常用于函数的调用.</p>
<h3 class="mume-header" id="%E4%BA%8C-%E5%8A%A0%E5%BC%BA%E5%9E%8B%E5%AE%9E%E9%AA%8C">二. 加强型实验</h3>
<h4 class="mume-header" id="1-%E5%AE%9E%E9%AA%8C%E7%9B%AE%E7%9A%84-1">1. 实验目的</h4>
<p>进一步掌握主程序和子程序之间的调用关系及其调用方法.</p>
<h4 class="mume-header" id="2-%E5%AE%9E%E9%AA%8C%E5%86%85%E5%AE%B9-1">2. 实验内容</h4>
<p>编写程序求数据区中 <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>10</mn></mrow><annotation encoding="application/x-tex">10</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">10</span></span></span></span> 个无符号数中的最大值和最小值,结果分别存入 <code>MAX</code> 和 <code>MIN</code> 单元中,要求最大值和最小值分别用子程序完成计算,主程序和子程序之间通过寄存器传递参数.</p>
<h4 class="mume-header" id="3-%E5%AE%9E%E9%AA%8C%E4%BB%AA%E5%99%A8%E8%AE%BE%E5%A4%87-1">3. 实验仪器设备</h4>
<ul>
<li>硬件环境: AMD Ryzen 9.</li>
<li>软件环境: Windows XP Pro SP3 (in VMware Workstation 16 Pro).</li>
<li>编辑程序: Visual Studio Code 1.62.3.</li>
<li>调试程序: <code>DEBUG.EXE</code>.</li>
<li>编译程序: <code>MASM.EXE</code>.</li>
<li>连接程序: <code>LINK.EXE</code>.</li>
</ul>
<h4 class="mume-header" id="4-%E5%AE%9E%E9%AA%8C%E6%AD%A5%E9%AA%A4-1">4. 实验步骤</h4>
<ol>
<li>检查并修改原程序</li>
<li>编译和连接<br>
<img src="./5/5-2.png" alt></li>
<li>用单步方式运行程序</li>
</ol>
<pre data-role="codeBlock" data-info="batch" class="language-batch"><span class="token command"><span class="token keyword keyword-debug">debug</span> <span class="token number">5</span><span class="token number">-2</span>.exe</span>
</pre><pre data-role="codeBlock" data-info="py" class="language-python"><span class="token operator">-</span>t
</pre><ol start="4">
<li>检查并记录各寄存器和存储单元内容的变化<br>
<img src="./5/5-3.png" alt></li>
</ol>
<h2 class="mume-header" id="22%E5%AD%90%E7%A8%8B%E5%BA%8F%E8%AE%BE%E8%AE%A1%E4%BA%8C">(2/2)子程序设计二</h2>
<h3 class="mume-header" id="%E4%B8%80-%E5%9F%BA%E7%A1%80%E6%80%A7%E5%AE%9E%E9%AA%8C-1">一. 基础性实验</h3>
<h4 class="mume-header" id="1-%E5%AE%9E%E9%AA%8C%E7%9B%AE%E7%9A%84-2">1. 实验目的</h4>
<ol>
<li>强化主程序和子程序之间的调用关系及其调用方法.</li>
<li>掌握嵌套子程序的设计以及调用方法.</li>
<li>掌握递归调用子程序的方法.</li>
</ol>
<h4 class="mume-header" id="2-%E5%AE%9E%E9%AA%8C%E5%86%85%E5%AE%B9-2">2. 实验内容</h4>
<p>试编制在 <code>ARRAY1</code> 无符号数组中,选出最大值及其所在的位置,然后以 <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>10</mn></mrow><annotation encoding="application/x-tex">10</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">10</span></span></span></span> 进制数形式显示在 <code>CRT</code> 上的源程序.</p>
<h4 class="mume-header" id="3-%E5%AE%9E%E9%AA%8C%E4%BB%AA%E5%99%A8%E8%AE%BE%E5%A4%87-2">3. 实验仪器设备</h4>
<ul>
<li>硬件环境: AMD Ryzen 9.</li>
<li>软件环境: Windows XP Pro SP3 (in VMware Workstation 16 Pro).</li>
<li>编辑程序: Visual Studio Code 1.62.3.</li>
<li>调试程序: <code>DEBUG.EXE</code>.</li>
<li>编译程序: <code>MASM.EXE</code>.</li>
<li>连接程序: <code>LINK.EXE</code>.</li>
</ul>
<h4 class="mume-header" id="4-%E5%AE%9E%E9%AA%8C%E6%AD%A5%E9%AA%A4-2">4. 实验步骤</h4>
<ol>
<li>检查并修改原程序</li>
<li>编译和连接<br>
<img src="./6/6-1.png" alt></li>
<li>用单步方式运行程序</li>
</ol>
<pre data-role="codeBlock" data-info="batch" class="language-batch"><span class="token command"><span class="token keyword keyword-debug">debug</span> <span class="token number">6</span><span class="token number">-1</span>.exe</span>
</pre><pre data-role="codeBlock" data-info="py" class="language-python"><span class="token operator">-</span>t
</pre><ol start="4">
<li>检查并记录各寄存器和存储单元内容的变化<br>
<img src="./6/6-2.png" alt></li>
</ol>
<h3 class="mume-header" id="%E4%BA%8C-%E5%8A%A0%E5%BC%BA%E5%9E%8B%E5%AE%9E%E9%AA%8C-1">二. 加强型实验</h3>
<h4 class="mume-header" id="1-%E5%AE%9E%E9%AA%8C%E7%9B%AE%E7%9A%84-3">1. 实验目的</h4>
<p>进一步掌握主程序和子程序之间的调用关系及其调用方法.</p>
<h4 class="mume-header" id="2-%E5%AE%9E%E9%AA%8C%E5%86%85%E5%AE%B9-3">2. 实验内容</h4>
<p>用子程序结构编程计算: <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>S</mi><mo>=</mo><mn>1</mn><mo stretchy="false">!</mo><mo>+</mo><mn>2</mn><mo stretchy="false">!</mo><mo>+</mo><mn>3</mn><mo stretchy="false">!</mo><mo>+</mo><mn>4</mn><mo stretchy="false">!</mo><mo>+</mo><mn>5</mn><mo stretchy="false">!</mo><mi mathvariant="normal">.</mi></mrow><annotation encoding="application/x-tex">S=1!+2!+3!+4!+5!.</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathnormal" style="margin-right:0.05764em;">S</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.77777em;vertical-align:-0.08333em;"></span><span class="mord">1</span><span class="mclose">!</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.77777em;vertical-align:-0.08333em;"></span><span class="mord">2</span><span class="mclose">!</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.77777em;vertical-align:-0.08333em;"></span><span class="mord">3</span><span class="mclose">!</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.77777em;vertical-align:-0.08333em;"></span><span class="mord">4</span><span class="mclose">!</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.69444em;vertical-align:0em;"></span><span class="mord">5</span><span class="mclose">!</span><span class="mord">.</span></span></span></span></p>
<h4 class="mume-header" id="3-%E5%AE%9E%E9%AA%8C%E4%BB%AA%E5%99%A8%E8%AE%BE%E5%A4%87-3">3. 实验仪器设备</h4>
<ul>
<li>硬件环境: AMD Ryzen 9.</li>
<li>软件环境: Windows XP Pro SP3 (in VMware Workstation 16 Pro).</li>
<li>编辑程序: Visual Studio Code 1.62.3.</li>
<li>调试程序: <code>DEBUG.EXE</code>.</li>
<li>编译程序: <code>MASM.EXE</code>.</li>
<li>连接程序: <code>LINK.EXE</code>.</li>
</ul>
<h4 class="mume-header" id="4-%E5%AE%9E%E9%AA%8C%E6%AD%A5%E9%AA%A4-3">4. 实验步骤</h4>
<ol>
<li>检查并修改原程序</li>
<li>编译和连接<br>
<img src="./6/6-3.png" alt></li>
<li>用单步方式运行程序</li>
</ol>
<pre data-role="codeBlock" data-info="batch" class="language-batch"><span class="token command"><span class="token keyword keyword-debug">debug</span> <span class="token number">6</span><span class="token number">-2</span>.exe</span>
</pre><pre data-role="codeBlock" data-info="py" class="language-python"><span class="token operator">-</span>t
</pre><ol start="4">
<li>检查并记录各寄存器和存储单元内容的变化<br>
<img src="./6/6-4.png" alt></li>
</ol>
</div>
</body></html>