chap2-4.htm.primary

加密与解密,软件加密保护技术与解决方案,看雪文档!

      </td>
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      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FLDPI<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>将</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>pi</span><span style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>装入</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>st(0)<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>st(0)</span><span lang=EN-US> &lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> ?(ie, pi)<o:p></o:p></span></p>
      </td>
    </tr>
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      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FLDL2T<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>将</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>log2(10)</span><span style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>装入</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'>st(0)<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>st(0) </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> log2(10)<o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FLDL2E<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>将</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>log2(e)</span><span style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>装入</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'>st(0)<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>st(0) </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> log2(e)<o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FLDLG2<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>将</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>log10(2)</span><span style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>装入</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'>st(0)<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>st(0) </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> log10(2)<o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FLDLN2<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>将</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>loge(2)</span><span style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>装入</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'>st(0)<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>st(0) </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> loge(2)<o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=570 colspan=3 valign=top style='width:427.35pt;border:none;
  border-bottom:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal> 
          <![if !supportEmptyParas]>
          &nbsp; 
          <![endif]>
          <span
  lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 valign=top style='width:89.4pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FST dest<o:p></o:p></span></p>
      </td>
      <td width=168 valign=top style='width:126.0pt;border-top:none;border-left:
  none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
  font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>保存实数</span><span lang=EN-US style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt'>st(0)</span><span style='font-size:9.0pt;
  mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>到</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'>dest<o:p></o:p></span></p>
      </td>
      <td width=283 valign=top style='width:211.95pt;border:none;border-bottom:
  solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>dest </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> st(0) (mem32/mem64)<o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 style='width:89.4pt;border-top:none;border-left:none;
  border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FSTP dest<o:p></o:p></span></p>
      </td>
      <td width=168 style='width:126.0pt;border-top:none;border-left:none;
  border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal> 
          <![if !supportEmptyParas]>
          &nbsp; 
          <![endif]>
          <span
  lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>
      </td>
      <td width=283 style='width:211.95pt;border:none;border-bottom:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>dest </span><span lang=EN-US>&lt;-</span><span lang=EN-US
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt'> st(0) (mem32/mem64/mem80)</span><span
  style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:宋体;mso-ascii-font-family:
  "Times New Roman";mso-hansi-font-family:"Times New Roman"'>；然后再执行一次出栈操作</span><span
  lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>
      </td>
    </tr>
    <tr> 
      <td width=119 style='width:89.4pt;border-top:none;border-left:none;
  border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'> 
        <p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:
  10.0pt'>FIST dest<o:p></o:p></span></p>
      </td>
      <td width=168 style='width:126.0pt;border-top:none;border-left:none;
  border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'>