95 lines
2.8 KiB
HTML
95 lines
2.8 KiB
HTML
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<HTML>
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<HEAD>
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<STYLE type="text/css">
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H1 {color: black }
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H2 {color: maroon }
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H3 {color: #007090 }
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A.head:link {color: #0060a0 }
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A.head:visited {color: #3040c0 }
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A.head:active {color: white }
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A.head:hover {color: yellow }
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A.red:link {color: red }
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A.red:visited {color: maroon }
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A.red:active {color: yellow }
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</STYLE>
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</HEAD>
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<TITLE>Magic-7.3 Command Reference</TITLE>
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<BODY BACKGROUND=graphics/blpaper.gif>
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<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>plow</H2>
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<HR>
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Layout stretching and compaction
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>plow</B> <I>option</I> <BR><BR>
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<BLOCKQUOTE>
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where <I>option</I> may be one of the following:
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<DL>
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<DT> <I>direction</I>
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<DD> Where <I>direction</I> may be any valid Manhattan
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<A HREF=direction.html>direction</A>, and
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causes the plow to be moved in that direction.
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<DT> <B>boundary</B>
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<DD> Set boundary around area plowing may affect
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<DT> <B>help</B>
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<DD> Print help information
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<DT> <B>horizon</B> <I>n</I>
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<DD> Set the horizon for jog introduction to <I>n</I> lambda units.
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<DT> <B>jogs</B>
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<DD> Reenable jog insertion (set horizon to 0)
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<DT> <B>selection</B> [<I>direction</I> [<I>distance</I>]]
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<DD> Plow the selection in the indicated <A HREF=direction.html>
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<I>direction</I></A> for the indicated
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<A HREF=distance.html><I>distance</I></A>.
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<DT> <B>straighten</B>
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<DD> Automatically straighten jogs after each plow
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<DT> <B>noboundary</B>
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<DD> Remove boundary around area plowing may affect
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<DT> <B>nojogs</B>
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<DD> Disable jog insertion (infinite jog horizon)
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<DT> <B>nostraighten</B>
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<DD> Don't automatically straighten jogs after each plow
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</DL>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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The <B>plow</B> command implements a sophisticated method of
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stretching and compacting layout. The cursor box can be
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used to shove layout in one direction or another, preserving
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net connectivity through the modifications. <P>
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Results of <B>plow</B> are usually messier than most VLSI
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designers care to cope with. The best cell compaction is
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realized with careful floorplanning considerations, not
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brute force pushing and shoving.
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>plow</B> is implemented as a built-in command in <B>magic</B>.
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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<A HREF=straighten.html><B>straighten</B></A> <BR>
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</BLOCKQUOTE>
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<P><IMG SRC=graphics/line1.gif><P>
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<TABLE BORDER=0>
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<TR>
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<TD> <A HREF=commands.html>Return to command index</A>
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</TR>
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</TABLE>
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<P><I>Last updated:</I> October 8, 2004 at 8:32pm <P>
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</BODY>
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</HTML>
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