mirror of
https://github.com/RTimothyEdwards/magic.git
synced 2026-08-29 09:30:46 +02:00
Tim Edwards
a816da60f9
since all of the title images still had 8.2, and the title text still said 7.3 or 7.4, having not been updated for a long time.
109 lines
4.1 KiB
HTML
109 lines
4.1 KiB
HTML
<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.red:active {color: yellow }
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</STYLE>
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</HEAD>
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<TITLE>Magic-8.3 Command Reference</TITLE>
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<BODY BACKGROUND=graphics/blpaper.gif>
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<H1> <IMG SRC=graphics/magic_title8_3.png ALT="Magic VLSI Layout Tool Version 8.3">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>flatten</H2>
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<HR>
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Flatten edit cell into the indicated destination cell.
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>flatten</B> [<I>option</I>] <I>cellname</I> <BR><BR>
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<BLOCKQUOTE>
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where <I>cellname</I> is the name of a cell definition to be
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created, and into which the flattened geometry will be placed.
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<I>option</I> may be one of <B>-nolabels</B>, <B>-nosubcircuits</B>,
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or <B>-noports</B>, <B>-novendor</B>, <B>-dotoplabels</B>,
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<B>-doproperty</B>, and <B>-dobox</B>.
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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>flatten</B> command creates a new cell with the indicated
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name, then flattens the hierarchy of the current edit cell and
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copies the result into the new cell. <P>
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The options allow selective flattening, as follows:
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<DL>
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<DT> <B>-nolabels</B>
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<DD> Prevents magic from copying labels into the flattened cell.
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Otherwise, magic flattens labels by prepending the cell
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hierarchy to each label as it copies it into the flat cell.
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<DT> <B>-nosubcircuits</B>
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<DD> Prevents magic from flattening cells declared to be subcircuits
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(by the presence of ports in the cell). These cells are
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retained as subcells in the flattened version.
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<DT> <B>-noports</B>
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<DD> Removes port information from labels when flattening, so that
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the flattened view will have only labels and not ports.
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<DT> <B>-novendor</B>
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<DD> Prevents magic from flattening cells that are vendor cells,
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that is, cells that are generated by reading GDS using the
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<B>gds readonly</B> option, or which have the appropriate
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property values set.
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<DT> <B>-dotoplabels</B>
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<DD> This option tells magic to preserve in the flattened view
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only the labels that are in the top level cell. Labels in
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subcells will be ignored.
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<DT> <B>-doproperty</B>
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<DD> This option will only flatten subcells which are marked
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with the property string "<B>flatten</B>". This is useful
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for flattening an entire set of cells; for example, flattening
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subcells with routing before creating a DEF file of a layout.
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<DT> <B>-dobox</B>
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<DD> When this option is specified, magic flattens only the area
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of the circuit that is inside the boundary of the cursor box.
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<DT> <B>-doinplace</B>
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<DD> When this option is specified, <I>cellname</I> must be the
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name of a cell <I>use</I> (instance), not a cell <I>definition</I>.
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The cell use <I>cellname</I> is assumed to exist in the current
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edit cell. The cell use will be removed from the edit cell and
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replaced with its flattened contents.
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</DL>
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Note that <I>cellname</I> is a top-level cell but is not displayed
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or saved subsequent to the <B>flatten</B> command. The usual
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procedure is to follow the command "<B>flatten</B> <I>cellname</I>"
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with "<B>load</B> <I>cellname</I>", to view the new flattened
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layout. <P>
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The target cell <I>cellname</I> must not already exist in the
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database except when using the <B>-dobox</B> option. With <B>-dobox</B>,
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using the same target <I>cellname</I> allows a layout to be flattened
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in pieces. <P>
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>flatten</B> is implemented as a built-in command in <B>magic</B>.
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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> June 23, 2021 at 5:48pm <P>
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</BODY>
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</HTML>
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