[mikets]

Are you trying to learn an assembly language or it must be PPC assembly? If learning x86 assembly is good enough, you can use your existing tools. Since your first post seems to be C++/C#, you probaby have visual studio. If so it supports the syntax of _asm {<some assembly code>} mixed in with C code. So you can progressively add more assembly code to your project. Another useful thing to do is to configure your compiler to generate assembly listing so that you can see how each C line is converted into assembly.