switch
<p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: 20pt;"> mov</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">bx,offset</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> table</span></p><br><p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: 20pt;"> </span><span style="font-size: 20pt;">mov</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">al,item</span></p><br><p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: 20pt;"> </span><span style="font-size: 20pt;">shl</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> al,1 ；x2</span></p><br><p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: 20pt;"> </span><span style="font-size: 20pt;">xor</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">ah,ah</span></p><br><p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size:20.0pt;font-family:<br>"Lucida Console";mso-ascii-font-family:"Lucida Console";mso-fareast-font-family:<br>楷体_GB2312;mso-bidi-font-family:+mn-cs;mso-bidi-theme-font:minor-bidi;<br>color:blue;mso-font-kerning:12.0pt;language:en-US;text-combine:letters;<br>font-weight:bold;mso-style-textfill-type:solid;mso-style-textfill-fill-color:<br>blue;mso-style-textfill-fill-alpha:100.0%"> </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">add </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">bx,ax</span></p><br><p style="margin-top: 4.8pt; margin-bottom: 0pt; margin-left: 0.3in; text-indent: -0.3in; direction: ltr; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: 20pt;"> </span><span style="font-size: 20pt;">jmp</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;"> word </span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">ptr</span><span style="font-family: "Lucida Console"; color: black;">[</span><span style="font-size: 20pt; font-family: "Lucida Console"; color: black;">bx</span><span style="font-family: "Lucida Console"; color: black;">]</span></p>
