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            <h2>Trace Logger</h2>

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<p class="rvps2"><span class="rvts88">追踪日志(Trace Logger)</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts21">简介</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">追踪日志用来记录每个被执行的指令和ROM被访问的字节,或者是文件被操作的.将日志导出到文件通常会非常有用,也可以用来在之后查找执行的内容.日志输出到窗口非常有意义,如果想观察断点被触发的情况. Both options produce the same data, but the desire to keep that data for a short amount of time or a long amount of time will determine which is best for you.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts21">使用追踪日志(Using the Trace Logger)</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">追踪日志是一个非常有用的工具,可以用来记录被执行的每个指令.如果选择输出到窗口,可以设置保留的行数.设置的行数越大,将会消耗更多的内存,则key用来操作更多的日志行.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">通常,将日志输出到窗口,追踪器仅仅会在游戏暂停或者优先级较高的按键下才会输出,也可以控制在游戏运行时进行日志更新,通常是不必要的,除非是配合 Code/Data Logger操作最近的几条指令数据.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">当代码输出到窗口的时候,可以使用滚轮上下翻页,右击则会跳转到调试器</span><a class="rvts89" href="Debugger.html">Debugger</a><span class="rvts6">窗口对应的地址.在此地址右击则可以给当前地址打上标签，也就是(Symbolic Debug).</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">可以自定义日志的输出个数:</span></p>
<ul style="text-indent: 0px; padding: 0; margin: 0 0 0 24px; list-style-position: outside; list-style-type: disc;">
 <li class="rvps2"><span class="rvts6">是否输出指令执行时寄存器状态,以及在每行的什么地方输出对应数据</span></li>
 <li class="rvps2"><span class="rvts6">是否输出当前帧的累计数,指令周期数,指令执行次数(current frame number, cycles counter, instructions counter) </span></li>
 <li class="rvps2"><span class="rvts6">是否输出模拟器信息emulator messages (such as "State 1 loaded")</span></li>
 <li class="rvps2"><span class="rvts6">是否输出断点触发 whether to log Breakpoint Hits (when you use debugger while tracing)</span></li>
 <li class="rvps2"><span class="rvts6">是否应用Symbolic Debug names when logging.可以在调试器</span><a class="rvts89" href="Debugger.html">Debugger</a><span class="rvts6">部分查看详情section for details</span></li>
</ul>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">为了美观的查看JSR的嵌套结构,可以使用栈指针作为每行的标记(lines tabbing).因为NES游戏大部分使用栈来实现子程序调用,很少在栈上存储数据内容,使用这个选项可以产生可读性强的汇编代码.还可以使用选项输出寄存器数据.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">日志追踪器还有很多选项可以用来与Code/Data Logger配合使用,用来记录首次执行的代码和数据.在查找关键子程序或者其他难以查找的数据时非常有用，使用如此功能的最好方式是自动更新日志窗口.然后游戏过程中自动记录首次出现的.如果需要查找特殊的内容,首先将所有代码都执行,然后观察查找需要的内容.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">有两种方式用来过滤Code/Data Logger显示的内容.第一个是过滤出首次执行的代码.第二种则是过滤首次进行数据访问的指令.需要注意的是2个过滤器可以组合使用.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6"></span><span class="rvts6"></span></p>
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