// MSIL = Microsoft Intermediate Language // = CLI Assembler // By Matthias Tessmann, 22. May 2002 ///// Begin .assembly extern mscorlib {} // Required Assembly manifest .assembly '99Bottles' {} .module '99Bottles.exe' // Be Object Orientated :-) .namespace _99Bottles { .class private auto ansi beforefieldinit Beer extends [mscorlib]System.Object {} } // Implement main bottle method .namespace _99Bottles { .class private auto ansi beforefieldinit Beer extends [mscorlib]System.Object { .method private hidebysig static void Main(string[] args) cil managed { .entrypoint .maxstack 4 // Setup local vars .locals init (int32, string, string, string, string) ldc.i4.s 99 stloc.0 ldstr " bottles of beer on the Wall" stloc.1 ldstr " bottle of beer on the Wall" stloc.2 ldstr " bottles of beer..." stloc.3 ldstr " bottle of beer..." stloc 4 br End Run: ldstr "{0} " ldloc.0 ldc.i4.1 bne.un.s MoreBottles // have more than one bottle left ldloc.2 // else br.s Concat MoreBottles: ldloc.1 Concat: call string [mscorlib]System.String::Concat(string,string) ldloc.0 box [mscorlib]System.Int32 call void [mscorlib]System.Console::WriteLine(string,object) ldstr "{0} " ldloc.0 ldc.i4.1 bne.un.s MoreBottles2 // more than one bottle left ldloc 4 // else br.s Concat2 MoreBottles2: ldloc.3 Concat2: call string [mscorlib]System.String::Concat(string, string) ldloc.0 box [mscorlib]System.Int32 call void [mscorlib]System.Console::WriteLine(string, object) ldstr "Take one down, pass it around," call void [mscorlib]System.Console::WriteLine(string) ldstr "{0} " ldloc.0 ldc.i4.1 sub dup stloc.0 dup ldc.i4.0 beq.s End2 ldc.i4.1 bne.un.s MoreBottles3 ldloc.2 br.s Concat3 MoreBottles3: ldloc.1 Concat3: call string [mscorlib]System.String::Concat(string,string) ldloc.0 box [mscorlib]System.Int32 call void [mscorlib]System.Console::WriteLine(string,object) ldstr "" call void [mscorlib]System.Console::WriteLine(string) End: ldloc.0 ldc.i4.0 bgt Run ldstr "No more bottles of beer on the wall!" call void [mscorlib]System.Console::WriteLine(string) ret End2: //Clean the stack pop pop br End } } } // End