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📄 第五章作业标准答案.htm

📁 清华大学出版得计算机系统结构得答案
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lang=EN-US>5.3</SPAN></H2>
<P class=MsoNormal 
style="MARGIN-LEFT: 54pt; TEXT-INDENT: -35.85pt; LINE-HEIGHT: 150%; mso-list: l3 level1 lfo1; tab-stops: list 54.0pt"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'"><SPAN 
style="mso-list: Ignore">(1)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><SPAN lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">6n*</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Δ</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">t<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 54pt; TEXT-INDENT: -35.85pt; LINE-HEIGHT: 150%; mso-list: l3 level1 lfo1; tab-stops: list 54.0pt"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'"><SPAN 
style="mso-list: Ignore">(2)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><SPAN lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">6t + 
(n-1)5t = (5n+1)</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Δ</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">t<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 54pt; TEXT-INDENT: -35.85pt; LINE-HEIGHT: 150%; mso-list: l3 level1 lfo1; tab-stops: list 54.0pt"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'"><SPAN 
style="mso-list: Ignore">(3)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><SPAN lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">6t + 
(n-1)3t = 3(n+1)</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Δ</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">t<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 54pt; TEXT-INDENT: -35.85pt; LINE-HEIGHT: 150%; mso-list: l3 level1 lfo1; tab-stops: list 54.0pt"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'"><SPAN 
style="mso-list: Ignore">(4)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><SPAN lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">3*(n+1)</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Δ</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">t, 
</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">约为</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">3n</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">Δ</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">t<o:p></o:p></SPAN></P>
<H2 style="MARGIN: 6pt 0cm 0pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US>5.5</SPAN></H2>
<P class=MsoNormal 
style="MARGIN-LEFT: 17.85pt; TEXT-INDENT: -17.85pt; LINE-HEIGHT: 150%"><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解:会发生</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">WR</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">操作数相关,</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">WW</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">操作数相关,且都为通用寄存器数据相关。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 17.85pt; TEXT-INDENT: -17.85pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">WR</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">:</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 17.85pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><SPAN 
style="mso-spacerun: yes">&nbsp;</SPAN>k:<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>ADD <SPAN 
style="mso-spacerun: yes">&nbsp;</SPAN>R1, R2;<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN>R1</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">←</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">(R1)+(R2)<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 17.85pt; TEXT-INDENT: -17.85pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><SPAN 
style="mso-spacerun: yes">&nbsp;</SPAN><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;</SPAN>K+1:<SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN>ADD <SPAN 
style="mso-spacerun: yes">&nbsp;</SPAN>R3, R1;<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN>R3</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">←</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">(R3)+(R1)<SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 17.85pt; TEXT-INDENT: -17.85pt; LINE-HEIGHT: 150%"><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关发生原因:</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 28pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设每段时间长度都为</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">1, 
</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">假设</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">n</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时刻开始取</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">k</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指令,则</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">n</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">+</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">3</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时刻开始将数据<SPAN 
class=GramE>写回到</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">R1</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">;在</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">n+1</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时刻,开始取</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">k+1</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指令,此时需要读取</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">R1</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中数据,因此将产生“先写后读”数据相关。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 17.85pt; TEXT-INDENT: -17.85pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">WW</SPAN><SPAN 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">:</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 38.85pt; TEXT-INDENT: 3.15pt; LINE-HEIGHT: 150%"><SPAN 
lang=EN-US 
style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt">k:<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>MUL<SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN>R1, R2;<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN>R1</SPAN><SPAN 

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