计算机原理课设 Quartus平台_存储_其他

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">计算机组成原理课程设计报告</div><div class="t m0 x2 h3 y3 ff2 fs0 fc0 sc0 ls0 ws0">------<span class="ff1">计算机主机系统设计</span></div><div class="t m0 x3 h4 y4 ff1 fs1 fc0 sc0 ls0 ws0">指导老师：</div><div class="t m0 x3 h4 y5 ff1 fs1 fc0 sc0 ls0 ws0">班级：</div><div class="t m0 x3 h4 y6 ff1 fs1 fc0 sc0 ls0 ws0">学号：</div><div class="t m0 x3 h4 y7 ff1 fs1 fc0 sc0 ls0 ws0">姓名：</div><div class="t m0 x3 h4 y8 ff1 fs1 fc0 sc0 ls0 ws0">完成日期：</div><div class="t m0 x4 h5 y9 ff1 fs2 fc0 sc0 ls0 ws0">目录</div><div class="t m0 x4 h6 ya ff1 fs3 fc0 sc0 ls0 ws0">一、计算机整机系统模型机总体结构设计框</div><div class="t m0 x4 h6 yb ff1 fs3 fc0 sc0 ls0 ws0">图<span class="ff2">---------------------------------<span class="_ _0"></span>----------3</span></div><div class="t m0 x4 h6 yc ff1 fs3 fc0 sc0 ls0 ws0">二<span class="_ _1"> </span>、<span class="_ _1"> </span>数<span class="_ _1"> </span>据<span class="_ _1"> </span>传<span class="_ _1"> </span>送<span class="_ _1"> </span>流<span class="_ _1"> </span>程<span class="_ _1"> </span>及<span class="_ _1"> </span>各<span class="_ _1"> </span>个<span class="_ _1"> </span>部<span class="_ _1"> </span>件<span class="_ _1"> </span>的<span class="_ _1"> </span>设</div><div class="t m0 x4 h6 yd ff1 fs3 fc0 sc0 ls0 ws0">计<span class="ff2">---------------------------------<span class="_ _0"></span>-----------------------3</span></div><div class="t m0 x4 h6 ye ff1 fs3 fc0 sc0 ls0 ws0">三<span class="_ _2"> </span>、<span class="_ _2"> </span>各<span class="_ _2"> </span>部<span class="_ _2"> </span>件<span class="_ _2"> </span>详<span class="_ _2"> </span>细<span class="_ _2"> </span>设</div><div class="t m0 x4 h6 yf ff1 fs3 fc0 sc0 ls0 ws0">计<span class="ff2">---------------------------------<span class="_ _0"></span>---------------------------------<span class="_ _0"></span>-------------5</span></div><div class="t m0 x4 h6 y10 ff1 fs3 fc0 sc0 ls0 ws0">四<span class="_ _3"> </span>、<span class="_ _3"> </span>指<span class="_ _3"> </span>令<span class="_ _3"> </span>详<span class="_ _4"> </span>细<span class="_ _3"> </span>设</div><div class="t m0 x4 h6 y11 ff1 fs3 fc0 sc0 ls0 ws0">计<span class="ff2">---------------------------------<span class="_ _0"></span>---------------------------------<span class="_ _0"></span>----------------23</span></div><div class="t m0 x4 h6 y12 ff1 fs3 fc0 sc0 ls0 ws0">五<span class="_ _5"> </span>、<span class="_ _5"> </span>微<span class="_ _5"> </span>指<span class="_ _5"> </span>令<span class="_ _5"> </span>设</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/bg2.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x4 h6 y13 ff1 fs3 fc0 sc0 ls0 ws0">计<span class="ff2">---------------------------------<span class="_ _0"></span>---------------------------------<span class="_ _0"></span>-------------------35</span></div><div class="t m0 x4 h6 y14 ff1 fs3 fc0 sc0 ls0 ws0">六<span class="_ _6"> </span>、<span class="_ _6"> </span>测<span class="_ _6"> </span>试<span class="_ _6"> </span>程<span class="_ _6"> </span>序<span class="_ _6"> </span>及<span class="_ _6"> </span>相<span class="_ _6"> </span>应<span class="_ _6"> </span>的<span class="_ _6"> </span>截</div><div class="t m0 x4 h6 y15 ff1 fs3 fc0 sc0 ls0 ws0">图<span class="ff2">--------------------------<span class="_"> </span>---<span class="_ _0"></span>---------------------------------<span class="_ _0"></span>-------41</span></div><div class="t m0 x4 h6 y16 ff1 fs3 fc0 sc0 ls0 ws0">七<span class="_ _7"> </span>、<span class="_ _7"> </span>心<span class="_ _7"> </span>得<span class="_ _7"> </span>体</div><div class="t m0 x4 h6 y17 ff1 fs3 fc0 sc0 ls0 ws0">会<span class="ff2">---------------------------------<span class="_ _0"></span>---------------------------------<span class="_ _0"></span>----------------------44</span></div><div class="t m0 x5 h5 y18 ff1 fs2 fc0 sc1 ls0 ws0">第一部分<span class="ff3 sc0"> </span>计算机整机系统模型机总体结构设计框图</div><div class="t m0 x6 h7 y19 ff1 fs4 fc0 sc0 ls0 ws0">我们在<span class="_ _0"></span>实验指<span class="_ _0"></span>导书和<span class="_ _0"></span>老师的<span class="_ _0"></span>讲解<span class="_ _0"></span>基础上<span class="_ _0"></span>，对模<span class="_ _0"></span>型机的<span class="_ _0"></span>整体<span class="_ _0"></span>结构设<span class="_ _0"></span>计进行<span class="_ _0"></span>了研究<span class="_ _0"></span>，首先<span class="_ _0"></span>弄</div><div class="t m0 x4 h7 y1a ff1 fs4 fc0 sc0 ls0 ws0">清楚了其各个部分的功能和作用，之后根据自己的需求对其进行了丰富。</div><div class="t m0 x6 h7 y1b ff1 fs4 fc0 sc0 ls0 ws0">下面是<span class="_ _0"></span>我们所<span class="_ _0"></span>设计的<span class="_ _0"></span>整机结<span class="_ _0"></span>构图<span class="_ _0"></span>，其中<span class="_ _0"></span>红色的<span class="_ _0"></span>部分是<span class="_ _0"></span>我们<span class="_ _0"></span>丰富的<span class="_ _0"></span>部分：<span class="_ _0"></span>我们添<span class="_ _0"></span>加了标<span class="_ _0"></span>志</div><div class="t m0 x4 h7 y1c ff1 fs4 fc0 sc0 ls0 ws0">寄存器<span class="_ _8"> </span><span class="ff4">FR</span>，并且由指令直接形成控存的入口地址。</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>

<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/bg3.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x7 h5 y1d ff1 fs2 fc0 sc1 ls0 ws0">第二部分<span class="ff3 sc0"> </span>数据传送流程及各个部件的设计</div><div class="t m0 x6 h7 y1e ff1 fs4 fc0 sc0 ls0 ws0">在设计<span class="_ _0"></span>好整机<span class="_ _0"></span>结构的<span class="_ _0"></span>基础上<span class="_ _0"></span>，我<span class="_ _0"></span>们进行<span class="_ _0"></span>了各个<span class="_ _0"></span>器件的<span class="_ _0"></span>详细<span class="_ _0"></span>设计和<span class="_ _0"></span>数据通<span class="_ _0"></span>路结构<span class="_ _0"></span>设计。<span class="_ _0"></span>器</div><div class="t m0 x4 h7 y1f ff1 fs4 fc0 sc0 ls0 ws0">件电路<span class="_ _0"></span>如下图<span class="_ _0"></span>所示。<span class="_ _0"></span>由于大<span class="_ _0"></span>小所<span class="_ _0"></span>限无法<span class="_ _0"></span>清楚地<span class="_ _0"></span>展示该<span class="_ _0"></span>电路<span class="_ _0"></span>图，故<span class="_ _0"></span>对每个<span class="_ _0"></span>封装好<span class="_ _0"></span>的器件<span class="_ _0"></span>给一<span class="_ _0"></span>个</div><div class="t m0 x4 h7 y20 ff1 fs4 fc0 sc0 ls0 ws0">编号，接下来的数据传递说明和其他的说明都以这个为基础。</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>

<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/bg4.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x4 h7 y21 ff1 fs4 fc0 sc0 ls0 ws0">编号<span class="_ _9"> </span>器件名称<span class="_ _3"> </span>控制信号<span class="_ _a"> </span>器件功能</div><div class="t m0 x8 h8 y22 ff4 fs4 fc0 sc0 ls0 ws0">1</div><div class="t m0 x9 h7 y23 ff1 fs4 fc0 sc0 ls0 ws0">暂存器<span class="_ _8"> </span><span class="ff4">BUSLA<span class="_ _b"></span>TCH<span class="_ _9"> </span>T_CPC<span class="ff1">、</span>T_OUTBUS<span class="_ _c"> </span><span class="ff1">临时存储总线上的信息</span></span></div><div class="t m0 x8 h8 y24 ff4 fs4 fc0 sc0 ls0 ws0">2</div><div class="t m0 x9 h7 y25 ff1 fs4 fc0 sc0 ls0 ws0">微指令地址译码器</div><div class="t m0 x9 h8 y26 ff4 fs4 fc0 sc0 ls0 ws0">DECODER2</div><div class="t m0 xa h7 y25 ff4 fs4 fc0 sc0 ls0 ws0">FC<span class="ff1">、</span>SC<span class="ff1">、</span>DC<span class="ff1">、</span>EC<span class="_ _d"> </span><span class="ff1">形成微指令的入口地址</span></div><div class="t m0 x8 h8 y27 ff4 fs4 fc0 sc0 ls0 ws0">3</div><div class="t m0 x9 h7 y28 ff1 fs4 fc0 sc0 ls0 ws0">指令寄存器<span class="_ _8"> </span><span class="ff4">IR<span class="_ _e"> </span>RESET</span>、<span class="ff4">I_CPIR<span class="_ _f"> </span></span>存取正在被执行的指令</div><div class="t m0 x8 h8 y29 ff4 fs4 fc0 sc0 ls0 ws0">4</div><div class="t m0 x9 h7 y2a ff1 fs4 fc0 sc0 ls0 ws0">寄存器组</div><div class="t m0 x9 h8 y2b ff4 fs4 fc0 sc0 ls0 ws0">REGISTER</div><div class="t m0 xa h7 y2a ff4 fs4 fc0 sc0 ls0 ws0">R_WE<span class="ff1">、</span>R_W<span class="_ _b"></span>A<span class="ff1">、</span>R_WB<span class="ff1">、</span>R_RE</div><div class="t m0 xa h7 y2c ff1 fs4 fc0 sc0 ls0 ws0">、<span class="ff4">R_RA</span>、<span class="ff4">R_RB</span></div><div class="t m0 xb h7 y2a ff1 fs4 fc0 sc0 ls0 ws0">提供<span class="_ _8"> </span><span class="ff4">AX</span>、<span class="ff4">BX</span>、<span class="ff4">CX</span>、<span class="ff4">DX<span class="_ _8"> </span></span>四</div><div class="t m0 xb h7 y2c ff1 fs4 fc0 sc0 ls0 ws0">个寄存器</div><div class="t m0 x8 h8 y2d ff4 fs4 fc0 sc0 ls0 ws0">5</div><div class="t m0 x9 h7 y2e ff1 fs4 fc0 sc0 ls0 ws0">微程序计数器<span class="_ _8"> </span><span class="ff4">uPC<span class="_ _10"> </span>uP_uPC1</span>、<span class="ff4">SET<span class="_ _7"> </span></span>提供微指令的地址</div><div class="t m0 x8 h8 y2f ff4 fs4 fc0 sc0 ls0 ws0">6</div><div class="t m0 x9 h7 y30 ff1 fs4 fc0 sc0 ls0 ws0">寄存器译码器</div><div class="t m0 x9 h8 y31 ff4 fs4 fc0 sc0 ls0 ws0">REGDECODER</div><div class="t m0 xa h7 y30 ff4 fs4 fc0 sc0 ls0 ws0">REGSEL<span class="ff1">、</span>CHGREG<span class="_ _11"> </span><span class="ff1">选择使用哪个寄存器</span></div><div class="t m0 x8 h8 y32 ff4 fs4 fc0 sc0 ls0 ws0">7</div><div class="t m0 x9 h7 y33 ff1 fs4 fc0 sc0 ls0 ws0">运算器<span class="_ _8"> </span><span class="ff4">ALU</span></div><div class="t m0 xa h8 y32 ff4 fs4 fc0 sc0 ls0 ws0">S0,S1,S2,S3,M,CN,</div><div class="t m0 xb h7 y33 ff1 fs4 fc0 sc0 ls0 ws0">进行逻辑或算数运算</div><div class="t m0 x8 h8 y34 ff4 fs4 fc0 sc0 ls0 ws0">8</div><div class="t m0 x9 h7 y35 ff1 fs4 fc0 sc0 ls0 ws0">标志寄存器</div><div class="t m0 x9 h8 y36 ff4 fs4 fc0 sc0 ls0 ws0">FRREG</div><div class="t m0 xa h7 y35 ff4 fs4 fc0 sc0 ls0 ws0">F_CPFR<span class="ff1">、</span>RESET<span class="_ _12"> </span><span class="ff1">存储<span class="_ _8"> </span></span>ZF<span class="ff1">、</span>PF<span class="ff1">、</span>SF<span class="_ _8"> </span><span class="ff1">三个状态</span></div><div class="t m0 xb h7 y37 ff1 fs4 fc0 sc0 ls0 ws0">位</div><div class="t m0 x8 h8 y38 ff4 fs4 fc0 sc0 ls0 ws0">9</div><div class="t m0 x9 h7 y39 ff1 fs4 fc0 sc0 ls0 ws0">控制寄存器<span class="_ _8"> </span><span class="ff4">ROM<span class="_ _13"> </span></span>存储微指令</div><div class="t m0 xc h8 y3a ff4 fs4 fc0 sc0 ls0 ws0">10</div><div class="t m0 x9 h7 y3b ff1 fs4 fc0 sc0 ls0 ws0">存储器<span class="_ _8"> </span><span class="ff4">RAM<span class="_ _14"> </span>M_CPMAR</span>、<span class="ff4">M_CPMDR</span>、<span class="ff4">M_W</span></div><div class="t m0 xa h7 y3c ff4 fs4 fc0 sc0 ls0 ws0">RE<span class="ff1">、</span>M_WR<span class="ff1">、</span>M_RD<span class="ff1">、</span>M_RAM</div><div class="t m0 xa h8 y3d ff4 fs4 fc0 sc0 ls0 ws0">BUS</div><div class="t m0 xb h7 y3b ff1 fs4 fc0 sc0 ls0 ws0">存储数据</div><div class="t m0 xc h8 y3e ff4 fs4 fc0 sc0 ls0 ws0">1<span class="_ _15"></span>1</div><div class="t m0 x9 h7 y3f ff1 fs4 fc0 sc0 ls0 ws0">程序计数器<span class="_ _8"> </span><span class="ff4">PC<span class="_ _16"> </span>P_CPPC</span>、<span class="ff4">SET</span>、<span class="ff4">P_PC1</span>、<span class="ff4">P_PCB</span></div><div class="t m0 xa h8 y40 ff4 fs4 fc0 sc0 ls0 ws0">US</div><div class="t m0 xb h7 y3f ff1 fs4 fc0 sc0 ls0 ws0">提供指令地址</div><div class="t m0 xc h8 y41 ff4 fs4 fc0 sc0 ls0 ws0">12</div><div class="t m0 x9 h7 y42 ff1 fs4 fc0 sc0 ls0 ws0">微指令寄存器<span class="_ _8"> </span><span class="ff4">uIR</span></div><div class="t m0 xa h8 y41 ff4 fs4 fc0 sc0 ls0 ws0">RESET</div><div class="t m0 xb h7 y42 ff1 fs4 fc0 sc0 ls0 ws0">存储正在被执行的微指令</div><div class="t m0 xc h8 y43 ff4 fs4 fc0 sc0 ls0 ws0">13</div><div class="t m0 x9 h7 y44 ff1 fs4 fc0 sc0 ls0 ws0">时序发生器<span class="_ _8"> </span><span class="ff4">TIMER<span class="_ _17"> </span>HAL<span class="_ _b"></span>T<span class="ff1">、</span>CLOCK<span class="_ _18"> </span><span class="ff1">产生时序信号</span></span></div><div class="t m0 xc h8 y45 ff4 fs4 fc0 sc0 ls0 ws0">14</div><div class="t m0 x9 h7 y46 ff1 fs4 fc0 sc0 ls0 ws0">跳转译码电路</div><div class="t m0 x9 h8 y47 ff4 fs4 fc0 sc0 ls0 ws0">JUMPDECODER</div><div class="t m0 xb h7 y46 ff1 fs4 fc0 sc0 ls0 ws0">判定是否跳转</div><div class="t m0 xc h8 y48 ff4 fs4 fc0 sc0 ls0 ws0">15</div><div class="t m0 x9 h7 y49 ff1 fs4 fc0 sc0 ls0 ws0">控制信号译码器</div><div class="t m0 x9 h8 y4a ff4 fs4 fc0 sc0 ls0 ws0">DECODER</div><div class="t m0 xb h7 y49 ff1 fs4 fc0 sc0 ls0 ws0">根据时序信号发出对应的控</div><div class="t m0 xb h7 y4b ff1 fs4 fc0 sc0 ls0 ws0">制信号</div><div class="t m0 xd h5 y4c ff1 fs2 fc0 sc1 ls0 ws0">第三部分<span class="ff3 sc0"> </span>各部件详细设计</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>

<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274a6e48dbc4529de6183e8/bg5.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x6 h7 y4d ff1 fs4 fc0 sc0 ls0 ws0">关于各<span class="_ _0"></span>个部件<span class="_ _0"></span>的设计<span class="_ _0"></span>，本次<span class="_ _0"></span>设计<span class="_ _0"></span>中所用<span class="_ _0"></span>到的器<span class="_ _0"></span>件有一<span class="_ _0"></span>部分<span class="_ _0"></span>是老师<span class="_ _0"></span>所给的<span class="_ _0"></span>，另一<span class="_ _0"></span>部分是<span class="_ _0"></span>以</div><div class="t m0 x4 h7 y4e ff1 fs4 fc0 sc0 ls0 ws0">前实验<span class="_ _0"></span>中所设<span class="_ _0"></span>计的。<span class="_ _0"></span>下面将<span class="_ _0"></span>给出<span class="_ _0"></span>每一个<span class="_ _0"></span>器件的<span class="_ _0"></span>设计图<span class="_ _0"></span>并进<span class="_ _0"></span>行说明<span class="_ _0"></span>，对于<span class="_ _0"></span>新设计<span class="_ _0"></span>的重要<span class="_ _0"></span>器件<span class="_ _0"></span>将</div><div class="t m0 x4 h7 y4f ff1 fs4 fc0 sc0 ls0 ws0">着重进行说明。</div><div class="t m0 x4 h7 y50 ff3 fs4 fc0 sc0 ls0 ws0">1.<span class="ff1 sc1">暂存器</span></div><div class="t m0 x6 h7 y51 ff4 fs4 fc0 sc0 ls0 ws0">1<span class="ff1">）器件设计：</span></div><div class="t m0 x6 h7 y52 ff4 fs4 fc0 sc0 ls0 ws0">2<span class="ff1">）器件输入说明：</span></div><div class="t m0 xe h7 y53 ff1 fs4 fc0 sc0 ls0 ws0">输入<span class="_ _19"> </span>用途</div><div class="t m0 xf h8 y54 ff4 fs4 fc0 sc0 ls0 ws0">D[15..0]</div><div class="t m0 x10 h7 y55 ff1 fs4 fc0 sc0 ls0 ws0">输入的一组<span class="_ _8"> </span><span class="ff4">16<span class="_ _8"> </span></span>位数据</div><div class="t m0 xe h8 y56 ff4 fs4 fc0 sc0 ls0 ws0">CPC</div><div class="t m0 x11 h7 y57 ff1 fs4 fc0 sc0 ls0 ws0">控制数据是否输入暂存器</div><div class="t m0 x12 h8 y58 ff4 fs4 fc0 sc0 ls0 ws0">OUTBUS</div><div class="t m0 x13 h7 y59 ff1 fs4 fc0 sc0 ls0 ws0">控制是否将数据输出</div><div class="t m0 x6 h7 y5a ff4 fs4 fc0 sc0 ls0 ws0">3<span class="ff1">）器件输出说明：</span></div><div class="t m0 xe h7 y5b ff1 fs4 fc0 sc0 ls0 ws0">输出<span class="_ _19"> </span>用途</div><div class="t m0 xf h8 y5c ff4 fs4 fc0 sc0 ls0 ws0">O[15..0]</div><div class="t m0 x10 h7 y5d ff1 fs4 fc0 sc0 ls0 ws0">输出的一组<span class="_ _8"> </span><span class="ff4">16<span class="_ _8"> </span></span>位数据</div><div class="t m0 x4 h7 y5e ff3 fs4 fc0 sc0 ls0 ws0">2.<span class="ff1 sc1">微指令地址译码器</span></div><div class="t m0 x6 h7 y5f ff4 fs4 fc0 sc0 ls0 ws0">1<span class="ff1">）<span class="_ _8"> </span>器件设计思路</span></div><div class="t m0 x6 h7 y60 ff1 fs4 fc0 sc0 ls0 ws0">本器件<span class="_ _0"></span>的作用<span class="_ _0"></span>是形成<span class="_ _0"></span>微指令<span class="_ _0"></span>在控<span class="_ _0"></span>制存储<span class="_ _0"></span>器中的<span class="_ _0"></span>地址。<span class="_ _0"></span>根据<span class="_ _0"></span>我们的<span class="_ _0"></span>设计，<span class="_ _0"></span>这个地<span class="_ _0"></span>址的高<span class="_ _0"></span>四</div><div class="t m0 x4 h7 y61 ff1 fs4 fc0 sc0 ls0 ws0">位直接<span class="_ _0"></span>由指令<span class="_ _0"></span>的高四<span class="_ _0"></span>位提供<span class="_ _0"></span>。根<span class="_ _0"></span>据高四<span class="_ _0"></span>位可定<span class="_ _0"></span>位到所<span class="_ _0"></span>执行<span class="_ _0"></span>的指令<span class="_ _0"></span>的微指<span class="_ _0"></span>令程序<span class="_ _0"></span>段。而<span class="_ _0"></span>根据<span class="_ _0"></span>每</div><div class="t m0 x4 h7 y62 ff1 fs4 fc0 sc0 ls0 ws0">个指令<span class="_ _0"></span>在取原<span class="_ _0"></span>操作数<span class="_ _0"></span>和目的<span class="_ _0"></span>操作<span class="_ _0"></span>数时不<span class="_ _0"></span>同的寻<span class="_ _0"></span>址方式<span class="_ _0"></span>，程<span class="_ _0"></span>序将执<span class="_ _0"></span>行该微<span class="_ _0"></span>指令程<span class="_ _0"></span>序段中<span class="_ _0"></span>的不<span class="_ _0"></span>同</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>