http://wiki.linux-xtensa.org/index.php?action=history&feed=atom&title=Instruction_Set_Simulators 2026-05-05T01:07:56Z Revision history for this page on the wiki MediaWiki 1.39.3 http://wiki.linux-xtensa.org/index.php?title=Instruction_Set_Simulators&diff=66&oldid=prev 2007-10-08T20:12:29Z

<p><span dir="auto"><span class="autocomment">Tensilica ISS</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:12, 8 October 2007</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[http://www.tensilica.com/ Tensilica] offers a commercial cycle-accurate simulator and a functional simulator for the Xtensa processor architecture. Please, visit [http://www.tensilica.com/ Tensilica&#039;s] website for further information.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[http://www.tensilica.com/ Tensilica] offers a commercial cycle-accurate simulator and a functional simulator for the Xtensa processor architecture. Please, visit [http://www.tensilica.com/ Tensilica&#039;s] website for further information.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The simulator (xt-iss) simply takes an ELF file as its argument and starts simulating instructions from the <del style="font-weight: bold; text-decoration: none;">&lt;code&gt;START&lt;/code&gt; address as defined in the ELF header</del>. The option &lt;code&gt;--turbo&lt;/code&gt; invokes the functional simulator TurboXim.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The simulator (xt-iss) simply takes an ELF file as its argument and starts simulating instructions from the <ins style="font-weight: bold; text-decoration: none;">reset vector</ins>. The option &lt;code&gt;--turbo&lt;/code&gt; invokes the <ins style="font-weight: bold; text-decoration: none;">(much faster) </ins>functional simulator TurboXim.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  xt-iss &#039;&#039;[--turbo]&#039;&#039; Image.elf</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  xt-iss &#039;&#039;[--turbo]&#039;&#039; Image.elf</div></td></tr> </table>

Marc http://wiki.linux-xtensa.org/index.php?title=Instruction_Set_Simulators&diff=13&oldid=prev 2007-04-13T23:39:52Z

<p>New page: Instruction Set Simulators (ISS) mimic the behavior of processors by simulating instructions, memory interface, and other I/O components. This allows developers to run and test their softw...</p> <p><b>New page</b></p><div>Instruction Set Simulators (ISS) mimic the behavior of processors by simulating instructions, memory interface, and other I/O components. This allows developers to run and test their software long before real hardware becomes available. Functional simulators provide the best performance but lack the time consistency delivered by cycle-accurate simulators. These simulate the processor pipeline and external components synchronized to a virtual clock. Although this overhead reduces their performance, it can provide vital information to improve the implementation of algorithms.<br /> <br /> == Tensilica ISS ==<br /> <br /> [http://www.tensilica.com/ Tensilica] offers a commercial cycle-accurate simulator and a functional simulator for the Xtensa processor architecture. Please, visit [http://www.tensilica.com/ Tensilica&#039;s] website for further information.<br /> <br /> The simulator (xt-iss) simply takes an ELF file as its argument and starts simulating instructions from the &lt;code&gt;START&lt;/code&gt; address as defined in the ELF header. The option &lt;code&gt;--turbo&lt;/code&gt; invokes the functional simulator TurboXim.<br /> <br /> xt-iss &#039;&#039;[--turbo]&#039;&#039; Image.elf</div>

Chris