removed imulq from chapter 2

book.tex

@@ -844,7 +844,7 @@ specified by the label, which we shall use to implement
 \Arg &::=&  \key{\$}\Int \mid \key{\%}\itm{register} \mid \Int(\key{\%}\itm{register}) \\ 
 \Instr &::=& \key{addq} \; \Arg, \Arg \mid 
       \key{subq} \; \Arg, \Arg \mid 
-      \key{imulq} \; \Arg,\Arg \mid 
+%      \key{imulq} \; \Arg,\Arg \mid 
       \key{negq} \; \Arg \mid \\
   && \key{movq} \; \Arg, \Arg \mid 
       \key{callq} \; \mathit{label} \mid
@@ -979,15 +979,14 @@ communicated from one step of the compiler to the next.
 
 \begin{figure}[tbp]
 \fbox{
-\begin{minipage}{0.96\textwidth}
-\vspace{-10pt}
+\begin{minipage}{\textwidth}
 \[
 \begin{array}{lcl}
 \Arg &::=&  \INT{\Int} \mid \REG{\itm{register}}
     \mid \STACKLOC{\Int} \\ 
 \Instr &::=& (\key{addq} \; \Arg\; \Arg) \mid 
              (\key{subq} \; \Arg\; \Arg) \mid 
-             (\key{imulq} \; \Arg\;\Arg) \mid 
+%             (\key{imulq} \; \Arg\;\Arg) \mid 
              (\key{negq} \; \Arg) \\
       &\mid& (\key{movq} \; \Arg\; \Arg) \mid 
              (\key{call} \; \mathit{label}) \\
@@ -1396,8 +1395,8 @@ follows.
 \end{array}
 \]
 
-The \key{imulq} instruction is a special case because the destination
-argument must be a register.
+%% The \key{imulq} instruction is a special case because the destination
+%% argument must be a register.
 
 \section{Print x86-64}
 \label{sec:print-x86}