entity Time_travel is
end Time_travel;
architecture Behavioral of Time_travel is
constant start_time : time := 10 ms;
constant stop_time : time := 5 ms;
procedure delay(t : time) is
begin
wait for t;
end delay;
begin
McFly : process is
begin
wait for start_time;
report " Started " severity NOTE;
delay(stop_time - start_time);
-- wait for stop_time - start_time;
report " Stopped " severity NOTE;
wait;
end process;
end Behavioral;
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<tr><td class='linenumbers'><pre><a id='n1' href='#n1'>1</a>
<a id='n2' href='#n2'>2</a>
<a id='n3' href='#n3'>3</a>
<a id='n4' href='#n4'>4</a>
<a id='n5' href='#n5'>5</a>
<a id='n6' href='#n6'>6</a>
<a id='n7' href='#n7'>7</a>
<a id='n8' href='#n8'>8</a>
<a id='n9' href='#n9'>9</a>
<a id='n10' href='#n10'>10</a>
<a id='n11' href='#n11'>11</a>
<a id='n12' href='#n12'>12</a>
<a id='n13' href='#n13'>13</a>
<a id='n14' href='#n14'>14</a>
<a id='n15' href='#n15'>15</a>
<a id='n16' href='#n16'>16</a>
<a id='n17' href='#n17'>17</a>
<a id='n18' href='#n18'>18</a>
<a id='n19' href='#n19'>19</a>
<a id='n20' href='#n20'>20</a>
<a id='n21' href='#n21'>21</a>
<a id='n22' href='#n22'>22</a>
<a id='n23' href='#n23'>23</a>
<a id='n24' href='#n24'>24</a>
<a id='n25' href='#n25'>25</a>
<a id='n26' href='#n26'>26</a>
<a id='n27' href='#n27'>27</a>
<a id='n28' href='#n28'>28</a>
<a id='n29' href='#n29'>29</a>
<a id='n30' href='#n30'>30</a>
<a id='n31' href='#n31'>31</a>
<a id='n32' href='#n32'>32</a>
<a id='n33' href='#n33'>33</a>
<a id='n34' href='#n34'>34</a>
<a id='n35' href='#n35'>35</a>
<a id='n36' href='#n36'>36</a>
<a id='n37' href='#n37'>37</a>
<a id='n38' href='#n38'>38</a>
<a id='n39' href='#n39'>39</a>
<a id='n40' href='#n40'>40</a>
<a id='n41' href='#n41'>41</a>
<a id='n42' href='#n42'>42</a>
</pre></td>
<td class='lines'><pre><code><style>pre { line-height: 125%; margin: 0; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env bash</span>
<span class="c1">#</span>
<span class="c1"># Empty/wrong machtype-workaround generator</span>
<span class="c1">#</span>
<span class="c1"># Copyright (C) 2006-2012 Imre Kaloz <kaloz@openwrt.org></span>
<span class="c1"># based on linux/arch/arm/boot/compressed/head-xscale.S</span>
<span class="c1">#</span>
<span class="c1"># This program is free software; you can redistribute it and/or modify</span>
<span class="c1"># it under the terms of the GNU General Public License as published by</span>
<span class="c1"># the Free Software Foundation; either version 2 of the License, or</span>
<span class="c1"># (at your option) any later version.</span>
<span class="c1">#</span>
<span class="c1"># This program is distributed in the hope that it will be useful,</span>
<span class="c1"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="c1"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<span class="c1"># GNU General Public License for more details.</span>
<span class="c1">#</span>
<span class="c1"># You should have received a copy of the GNU General Public License</span>
<span class="c1"># along with this program; if not, write to the Free Software</span>
<span class="c1"># Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<span class="c1"># NOTE: for now it's for only IXP4xx in big endian mode</span>
<span class="c1"># list of supported boards, in "boardname machtypeid" format</span>
<span class="k">for</span> board in <span class="s2">"avila 526"</span> <span class="s2">"gateway7001 731"</span> <span class="s2">"nslu2 597"</span> <span class="s2">"nas100d 865"</span> <span class="s2">"wg302v1 889"</span> <span class="s2">"wg302v2 890"</span> <span class="s2">"pronghorn 928"</span> <span class="s2">"pronghornmetro 1040"</span> <span class="s2">"compex 1273"</span> <span class="s2">"wrt300nv2 1077"</span> <span class="s2">"loft 849"</span> <span class="s2">"dsmg600 964"</span> <span class="s2">"fsg3 1091"</span> <span class="s2">"ap1000 1543"</span> <span class="s2">"tw2662 1658"</span> <span class="s2">"tw5334 1664"</span> <span class="s2">"ixdpg425 604"</span> <span class="s2">"cambria 1468"</span> <span class="s2">"sidewinder 1041"</span> <span class="s2">"ap42x 4418"</span>
<span class="k">do</span>
<span class="nb">set</span> -- <span class="nv">$board</span>
<span class="nv">hexid</span><span class="o">=</span><span class="k">$(</span><span class="nb">printf</span> %x<span class="se">\\</span>n <span class="nv">$2</span><span class="k">)</span>
<span class="k">if</span> <span class="o">[</span> <span class="s2">"</span><span class="nv">$2</span><span class="s2">"</span> -lt <span class="s2">"256"</span> <span class="o">]</span><span class="p">;</span> <span class="k">then</span>
<span class="c1"># we have a low machtypeid, we just need a "mov" (e3a)</span>
<span class="nb">printf</span> <span class="s2">"\xe3\xa0\x10\x</span><span class="nv">$hexid</span><span class="s2">"</span> > <span class="nv">$BIN_DIR</span>/<span class="nv">$IMG_PREFIX</span>-<span class="nv">$1</span>-zImage
<span class="k">else</span>
<span class="c1"># we have a high machtypeid, we need a "mov" (e3a) and an "orr" (e38)</span>
<span class="k">if</span> <span class="o">[</span> <span class="s2">"</span><span class="nv">$2</span><span class="s2">"</span> -lt <span class="s2">"4096"</span> <span class="o">]</span><span class="p">;</span> <span class="k">then</span>
<span class="nb">printf</span> <span class="s2">"\xe3\xa0\x10\x</span><span class="k">$(</span><span class="nb">echo</span> <span class="nv">$hexid</span><span class="p">|</span>cut -b <span class="s2">"2 3"</span><span class="k">)</span><span class="s2">\xe3\x81\x1c\x</span><span class="k">$(</span><span class="nb">echo</span> <span class="nv">$hexid</span><span class="p">|</span>cut -b <span class="m">1</span><span class="k">)</span><span class="s2">"</span> > <span class="nv">$BIN_DIR</span>/<span class="nv">$IMG_PREFIX</span>-<span class="nv">$1</span>-zImage
<span class="k">else</span>
<span class="nb">printf</span> <span class="s2">"\xe3\xa0\x10\x</span><span class="k">$(</span><span class="nb">echo</span> <span class="nv">$hexid</span><span class="p">|</span>cut -b <span class="s2">"3 4"</span><span class="k">)</span><span class="s2">\xe3\x81\x1c\x</span><span class="k">$(</span><span class="nb">echo</span> <span class="nv">$hexid</span><span class="p">|</span>cut -b <span class="s2">"1 2"</span><span class="k">)</span><span class="s2">"</span> > <span class="nv">$BIN_DIR</span>/<span class="nv">$IMG_PREFIX</span>-<span class="nv">$1</span>-zImage
<span class="k">fi</span>
<span class="k">fi</span>
<span class="c1"># generate the image</span>
cat <span class="nv">$BIN_DIR</span>/<span class="nv">$IMG_PREFIX</span>-zImage >> <span class="nv">$BIN_DIR</span>/<span class="nv">$IMG_PREFIX</span>-<span class="nv">$1</span>-zImage
<span class="k">done</span>
</pre></div>