如何学习IL在CLR [英] How to Learn IL on the CLR

问题描述

由于这些IL codeS我看多了，我想了解如何跨preT他们正确。

Since these IL codes what I see more, I like to learn how to interpret them correctly.

我找不到像C＃编译器或任何其他的，所以我想我可以pretty的多拿剩下的工作后，我学这个常见的一个文档：

I couldn't find a documentation like C# Compiler or any other so I think I can pretty much take care of the rest after I learn this common ones:

下面是一些示例IL codeS含有什么，我需要知道的：

Below are some sample IL codes containing what I need to know :

示例1：

.method private hidebysig static void  Main(string[] args) cil managed
{
  .entrypoint
  // Code size       15 (0xf)
  .maxstack  1
  .locals init ([0] class EnumReflection.DerivedClass derivedClass)
  IL_0000:  nop
  IL_0001:  newobj     instance void EnumReflection.DerivedClass::.ctor()
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  callvirt   instance void EnumReflection.DerivedClass::WriteOutput()
  IL_000d:  nop
  IL_000e:  ret
} // end of method Program::Main

示例2：

.method public hidebysig specialname rtspecialname 
        instance void  .ctor() cil managed
{
  // Code size       38 (0x26)
  .maxstack  8
  IL_0000:  ldarg.0
  IL_0001:  ldstr      "Hello"
  IL_0006:  stfld      string EnumReflection.DerivedClass::hello
  IL_000b:  ldarg.0
  IL_000c:  ldstr      "World"
  IL_0011:  stfld      string EnumReflection.DerivedClass::world
  IL_0016:  ldarg.0
  IL_0017:  ldc.i4.s   123
  IL_0019:  stfld      int32 EnumReflection.DerivedClass::age
  IL_001e:  ldarg.0
  IL_001f:  call       instance void EnumReflection.BaseClass::.ctor()
  IL_0024:  nop
  IL_0025:  ret
} // end of method DerivedClass::.ctor

我知道这些codeS这样做，因为我公司生产他们:-)不过，我想更多地了解相应的IL code。

I know what these codes do since I produced them :-) however I'd like to learn more about corresponding IL code.

这些样品中含有IL codeS一样，，并请你解释一下命令与问号？并且还做那些命令代表什么？因此，我们可以很容易地记住它们。

These samples contain IL codes like, and could you please explain command with question marks? and also what do those command stand for? So we can memorize them easily.

• NOP（调试 - 无操作）
• newobj（现在看来，这是建立在堆中新对象）
• stloc.0？
• ldloc.0？
• RET？
• ldarg.0？
• ldstr？
• stfld？
• ldc.i4.s？
• 在.ctor - 构造

• nop (for debugging - no operation)
• newobj (it seems it is creating new object in heap)
• stloc.0 ?
• ldloc.0 ?
• ret ?
• ldarg.0 ?
• ldstr ?
• stfld ?
• ldc.i4.s ?
• .ctor - constructor

了解IL是重要的，因为它暴露了编译器如何产生特别codeS和行为在特定情况下。

Understanding IL is important as it exposes how particular compiler produces codes and act in specific cases.

不过，我找不到它包含的例子还有约IL一个不错的文档。 CLR与C＃3.0是一本好书，但最终它是不是一个IL书，因此并不能说明一切，IL。

However, I couldn't find a nice docs which contain examples as well about IL. CLR with C# 3.0 is a good book however eventually it isn't a IL book so it doesn't explain everything about IL.

编辑：

我发现的规格，他们告诉这些：由于@usr

• NOP（调试 - 无操作）
• newobj - 创建一个新的对象
• stloc.0 - 从堆栈弹出值局部变量
• ldloc.0？ - 负载局部变量压入堆栈
• RET - 从方法返回
• ldarg.0 - 加载参数0到堆栈中。
• ldstr - 加载一个字符串
• stfld - 存储到一个对象的字段
• ldc.i4.s - 按下NUM压入堆栈作为INT32，缩写形式。
• 在.ctor - 构造

• nop (for debugging - no operation)
• newobj - create a new object
• stloc.0 - pop value from stack to local variable
• ldloc.0 ? - load local variable onto the stack
• ret - return from method
• ldarg.0 - Load argument 0 onto the stack.
• ldstr - load a literal string
• stfld - store into a field of an object
• ldc.i4.s - Push num onto the stack as int32 , short form.
• .ctor - constructor

推荐答案

微软标准化CLR和公布这些标准。三分区包含了大量有关IL / CIL的信息，是适合学习。这是一个很好的文件。

Microsoft standardized the CLR and published those standards. Partition III contains a wealth of information about IL/CIL and is suitable for learning. It is an excellent document.

您还可以了解IL以身作则。编译在C＃中一些简单的方法，并期待在IL中的反射器（它有一个IL-模式）。

You can also learn IL by example. Compile a few simple methods in C# and look at the IL in reflector (it has an IL-mode).

这篇关于如何学习IL在CLR的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！