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+
+-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the
+-- Free Software Foundation; either version 2 of the License, or (at
+-- your option) any later version.
+
+-- VESTs is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+-- ---------------------------------------------------------------------
+--
+-- $Id: ch_20_fg_20_15.vhd,v 1.2 2001-10-26 16:29:36 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+package cell_attributes is
+
+ type length is range 0 to integer'high
+ units nm;
+ um = 1000 nm;
+ mm = 1000 um;
+ mil = 25400 nm;
+ end units length;
+
+ type coordinate is record
+ x, y : length;
+ end record coordinate;
+
+ attribute cell_position : coordinate;
+
+end package cell_attributes;
+
+
+
+entity CPU is
+end entity CPU;
+
+
+-- code from book
+
+architecture cell_based of CPU is
+
+ component fpu is
+ port ( -- . . . );
+ -- not in book
+ port_name : bit := '0' );
+ -- end not in book
+ end component;
+
+ use work.cell_attributes.all;
+
+ attribute cell_position of the_fpu : label is ( 540 um, 1200 um );
+
+ -- . . .
+
+begin
+
+ the_fpu : component fpu
+ port map ( -- . . . );
+ -- not in book
+ port_name => open );
+ -- end not in book
+
+ -- . . .
+
+end architecture cell_based;
+
+-- end code from book