76 lines
2.1 KiB
HTML
76 lines
2.1 KiB
HTML
<HTML>
|
|
<HEAD>
|
|
<STYLE type="text/css">
|
|
H1 {color: black }
|
|
H2 {color: maroon }
|
|
H3 {color: #007090 }
|
|
A.head:link {color: #0060a0 }
|
|
A.head:visited {color: #3040c0 }
|
|
A.head:active {color: white }
|
|
A.head:hover {color: yellow }
|
|
A.red:link {color: red }
|
|
A.red:visited {color: maroon }
|
|
A.red:active {color: yellow }
|
|
</STYLE>
|
|
</HEAD>
|
|
<TITLE>Magic-7.3 Command Reference</TITLE>
|
|
<BODY BACKGROUND=graphics/blpaper.gif>
|
|
<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
|
|
<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
|
|
|
|
<H2>undo</H2>
|
|
<HR>
|
|
Undo commands
|
|
<HR>
|
|
|
|
<H3>Shortcuts:</H3>
|
|
<BLOCKQUOTE>
|
|
Key macro <B>U</B> implements the command <B>undo</B>.
|
|
</BLOCKQUOTE>
|
|
|
|
<H3>Usage:</H3>
|
|
<BLOCKQUOTE>
|
|
<B>undo</B> [<B>print</B> [<I>count</I>]] <BR><BR>
|
|
<BLOCKQUOTE>
|
|
where <I>count</I> indicates a number of events to be undone
|
|
(default 1 event), and must be a nonzero positive integer.
|
|
</BLOCKQUOTE>
|
|
</BLOCKQUOTE>
|
|
|
|
<H3>Summary:</H3>
|
|
<BLOCKQUOTE>
|
|
The <B>undo</B> command reverses the effect of the last
|
|
executed command (command-line, script, or macro-invoked),
|
|
returning the layout to the state it was in prior to
|
|
execution of that command. <P>
|
|
|
|
Certain commands in <B>magic</B> disable the undo mechanism,
|
|
thus preventing the command from being undone. These include
|
|
layout reads and writes, CIF, GDS, and LEF/DEF reads and
|
|
writes.
|
|
|
|
The <B>print</B> option generates a stack trace of the top
|
|
<I>count</I> events in the undo stack, in excruciating
|
|
detail.
|
|
</BLOCKQUOTE>
|
|
|
|
<H3>Implementation Notes:</H3>
|
|
<BLOCKQUOTE>
|
|
<B>undo</B> is implemented as a built-in window command in <B>magic</B>.
|
|
</BLOCKQUOTE>
|
|
|
|
<H3>See Also:</H3>
|
|
<BLOCKQUOTE>
|
|
<A HREF=redo.html><B>redo</B></A> <BR>
|
|
</BLOCKQUOTE>
|
|
|
|
<P><IMG SRC=graphics/line1.gif><P>
|
|
<TABLE BORDER=0>
|
|
<TR>
|
|
<TD> <A HREF=commands.html>Return to command index</A>
|
|
</TR>
|
|
</TABLE>
|
|
<P><I>Last updated:</I> October 15, 2004 at 5:55am <P>
|
|
</BODY>
|
|
</HTML>
|