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[translated] 20171202 Simulating the Altair.md
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Simulating the Altair
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======
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The [Altair 8800][1] was a build-it-yourself home computer kit released in 1975. The Altair was basically the first personal computer, though it predated the advent of that term by several years. It is Adam (or Eve) to every Dell, HP, or Macbook out there.
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Some people thought it’d be awesome to write an emulator for the Z80—a processor closely related to the Altair’s Intel 8080—and then thought it needed a simulation of the Altair’s control panel on top of it. So if you’ve ever wondered what it was like to use a computer in 1975, you can run the Altair on your Macbook:
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![Altair 8800][2]
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### Installing it
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You can download Z80 pack from the FTP server available [here][3]. You’re looking for the latest Z80 pack release, something like `z80pack-1.26.tgz`.
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First unpack the file:
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```
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$ tar -xvf z80pack-1.26.tgz
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```
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Move into the unpacked directory:
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```
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$ cd z80pack-1.26
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```
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The control panel simulation is based on a library called `frontpanel`. You’ll have to compile that library first. If you move into the `frontpanel` directory, you will find a `README` file listing the libraries own dependencies. Your experience here will almost certainly differ from mine, but perhaps my travails will be illustrative. I had the dependencies installed, but via [Homebrew][4]. To get the library to compile I just had to make sure that `/usr/local/include` was added to Clang’s include path in `Makefile.osx`.
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If you’ve satisfied the dependencies, you should be able to compile the library (we’re now in `z80pack-1.26/frontpanel`:
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```
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$ make -f Makefile.osx ...
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$ make -f Makefile.osx clean
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```
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You should end up with `libfrontpanel.so`. I copied this to `/usr/local/lib`.
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The Altair simulator is under `z80pack-1.26/altairsim`. You now need to compile the simulator itself. Move into `z80pack-1.26/altairsim/srcsim` and run `make` once more:
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```
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$ make -f Makefile.osx ...
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$ make -f Makefile.osx clean
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```
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That process will create an executable called `altairsim` one level up in `z80pack-1.26/altairsim`. Run that executable and you should see that iconic Altair control panel!
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And if you really want to nerd out, read through the original [Altair manual][5].
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If you enjoyed this post, more like it come out every two weeks! Follow [@TwoBitHistory][6] on Twitter or subscribe to the [RSS feed][7] to make sure you know when a new post is out.
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--------------------------------------------------------------------------------
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via: https://twobithistory.org/2017/12/02/simulating-the-altair.html
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作者：[Two-Bit History][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://twobithistory.org
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[b]: https://github.com/lujun9972
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[1]: https://en.wikipedia.org/wiki/Altair_8800
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[2]: https://www.autometer.de/unix4fun/z80pack/altair.png
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[3]: http://www.autometer.de/unix4fun/z80pack/ftp/
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[4]: http://brew.sh/
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[5]: http://www.classiccmp.org/dunfield/altair/d/88opman.pdf
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[6]: https://twitter.com/TwoBitHistory
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[7]: https://twobithistory.org/feed.xml
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模拟 Altair
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======
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[Altair 8800][1] 是 1975 年发布的自建家用电脑套件。Altair 基本上是第一台个人电脑，虽然这个名词好几年前就出现了。对 Dell、HP 或者 Macbook 而言它是亚当（或者夏娃）。
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有些人认为为 Z80（与 Altair 的 Intel 8080 密切相关的处理器）编写仿真器真是太棒了，并认为它需要模拟 Altair 的控制面板。所以如果你想知道 1975 年使用电脑是什么感觉，你可以在你的 Macbook 上运行 Altair：
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![Altair 8800][2]
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### 安装它
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你可以从[这里][3]的 FTP 服务器下载 Z80 包。你要查找最新的 Z80 包版本，例如 `z80pack-1.26.tgz`。
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首先解压文件：
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```
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$ tar -xvf z80pack-1.26.tgz
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```
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进入解压目录：
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```
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$ cd z80pack-1.26
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```
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控制面板模拟基于名为 `frontpanel` 的库。你必须先编译该库。如果你进入 `frontpanel` 目录，你会发现 `README` 文件列出了库自己的依赖项。你在这里的体会几乎肯定会与我的不同，但也许我的痛苦可以作为例子。我安装了依赖项，但是是通过 [Homebrew][4] 安装的。为了让库能够编译，我必须确保在 `Makefile.osx` 中将 `/usr/local/include `添加到 Clang 的 include 路径中。
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如果你觉得依赖没有问题，那么你应该就能编译库（我们现在位于 `z80pack-1.26/frontpanel`）：
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```
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$ make -f Makefile.osx ...
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$ make -f Makefile.osx clean
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```
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你应该会得到 `libfrontpanel.so`。我把它拷贝到 `libfrontpanel.so`。
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Altair 模拟器位于 `z80pack-1.26/altairsim` 下。你现在需要编译模拟器本身。进入 `z80pack-1.26/altairsim/srcsim` 并再次运行 `make`：
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```
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$ make -f Makefile.osx ...
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$ make -f Makefile.osx clean
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```
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该过程将在 `z80pack-1.26/altairsim` 中创建一个名为 `altairsim` 的可执行文件。运行该可执行文件，你应该会看到标志性的 Altair 控制面板！
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如果你想要探究，请阅读原始的[Altair 手册][5]
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如果你喜欢这篇文章，我们每两周更新一次！在 Twitter 上关注 [@TwoBitHistory][6] 或订阅 [RSS 源][7]了解什么时候有新文章。
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--------------------------------------------------------------------------------
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via: https://twobithistory.org/2017/12/02/simulating-the-altair.html
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作者：[Two-Bit History][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://twobithistory.org
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[b]: https://github.com/lujun9972
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[1]: https://en.wikipedia.org/wiki/Altair_8800
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[2]: https://www.autometer.de/unix4fun/z80pack/altair.png
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[3]: http://www.autometer.de/unix4fun/z80pack/ftp/
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[4]: http://brew.sh/
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[5]: http://www.classiccmp.org/dunfield/altair/d/88opman.pdf
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[6]: https://twitter.com/TwoBitHistory
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[7]: https://twobithistory.org/feed.xml
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