">
 </A>
<A NAME="IX_istep Swat command">
 </A>
These two commands are used to single-step through code, executing one or more instructions at a time. The <CODE>
default subcommand</CODE>
 argument determines the action taken by Swat when the Return key is pressed. For example, the command</P>
<PRE>[hello3:0] 7 =&gt; <STRONG>istep n</STRONG></PRE>
<P>
will enter instruction step mode, and subsequently pressing the Return key will have the same effect as pressing <CODE>
n</CODE>
. If no default command is gi