Posted by James Vastbinder  From/InfoQ

Recently Microsoft Embedded Evangelist Mike Hall pointed out his port of Space Invaders to the .NET Micro Framework and called out fellow 'Softie Pavel Bansky for his port of Tetris.  While Mike wrote Space Invaders as a demo for a presentation last year, Pavel wanted to test the limits of WPF within the .NET Micro Framework.

In Pavel's own words:

I've always wanted to code Tetris, but as time goes on,this game looks a bit old fashion. Especially on those new computers with all bells and whistles, but this led me to idea of writing Tetris for .NET Micro Framework. It will be cool sample application and discovery of WPF possibilities in Micro Framework.

In order to develop on the .NET Micro Framework, developers have at their disposal the C# language and a subset of the .NET Framework libraries.  The actual footprint of the .NET Micro framework is only several hundred kilobytes.  Unlike the other versions of the .NET Framework, this smaller cousin was actually developed from scratch according to the ECMA specifications.

Because a developer's code is compiled to an intermediate language, as long as it is a 32-bit processor or a processor which will run 32-bit code, developers are provided hardware independence.  This is gained through porting of the .NET Micro Framework Common Language Runtime or CLR.  A downside to porting the .NET Micro Framework CLR, if it is not available for your favorite hardware platform, is that Microsoft is currently asking for a fee.  At present the SDK is freely available to developers on ARM7, ARM9, XScale, and more recently Blackfin. 

If developers have ported other games to the .NET Micro Framework, Mike Hall promises post a link once a video of the game is provided online.

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跟上.NET Micro framework时代

译/朱永光

最近微软嵌入式技术布道者Mike Hall提到他把“Space Invaders（太空入侵者）”移植 到.NET Micro Framework上，并唤起了同道中人Pavel Bansky移植“Tetris（俄罗斯方块）” 的行动。

当Mike于去年编写了“Space Invaders”作为演讲的一个演示程序后，Pavel打算测试一下WPF在.NET Micro Framework中限制。

以Pavel自己的话说：

我一直想编写俄罗斯方块，但随着时间流逝，这个游戏看起来有点过时了。尤其在很多新计算机上已经有了很丰富的玩意儿了，但是这也让我产生了编写运行在.NET Micro Framework上的俄罗斯方块的想法。这将是一个非常酷的示例，能发掘在Micro Framework中WPF的潜力。

为了在.NET Micro Framework中开发，开发人员只需要了解C#语言和一些.NET Framework函数库的子集。实际上，.NET Micro Framework占用空间只有几百Kb大小。不像其它版本的.NET Framework，这个小型的同辈实际上是根据ECMA的规范从零开发的。

因为开发人员的代码被编译成中间语言，所以只要具备了32位的处理器或能运行32位代码的处理器，开发人员就能独立的准备其他硬件。移植到.NET Micro Framework通用语言运行时（CLR）上是有好处的。进行移植的一个缺点就是，如果你所用的硬件平台不支持的话，微软当前需要收费来进行定制。目前，SDK对于使用ARM7、ARM9、XScale和最新的Blackfin的开发人员来说是免费的。

如果开发人员要移植其他游戏到.NET Micro Framework，Mike Hall许诺一旦游戏视频可以在线提供就马上给出连接来让大家参考。