mirror of
https://github.com/RTimothyEdwards/magic.git
synced 2026-08-29 01:24:51 +02:00
Tim Edwards
09577b5636
The website documentation now points to these contents in a clone of the repository on opencircuitdesign.com, so all future edits of the command-line documentation will be made directly to the git repository. Also: Changed the precision of box values printed in microns from 2 to 3 digits after the decimal place, so that 5 nanometer grids do not get values clipped in the output.
68 lines
2.2 KiB
HTML
68 lines
2.2 KiB
HTML
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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_title8_2.png ALT="Magic VLSI Layout Tool Version 8.2">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>readspice</H2>
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<HR>
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Read a SPICE netlist file and use the information from subcircuit definitions in the file to set port indexes.
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>readspice</B> <I>filename</I> <BR><BR>
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<BLOCKQUOTE>
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where <I>filename</I> is the path name of a SPICE netlist file containing one or more subcircuit definitions.
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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>readspice</B> command is used to ensure that port indexes on
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port labels in a cell match the port order specified in an existing
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SPICE netlist for that cell. This is generally used with standard
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cell libraries to ensure that port order is maintained in cells that
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are read from GDS or LEF, neither of which declares a port order.
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It will also create ports from labels in the case where a file read
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from GDS does not contain layers that are interpreted as ports by
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the technology file's <B>cifinput</B> section.
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>readspice</B> is implemented as a Tcl procedure defined
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in the GUI wrapper script. It is only available when the wrapper
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is used, that is, when <B>magic</B> is invoked with argument <B>-w</B>,
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although the script can be sourced from the runtime library.
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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<A HREF=port.html><B>port</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> May 28, 2020 at 11:46am <P>
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