Question: RC5 assembly code?

I have the source code for RC5 encryption algorithm, but it is in C, well it is still cool since it is "portable" but I am actually looking for a PowerPC assembly code for the same, or at least for the Key Expansion, Encryption and Decryption routines. I am not a PowerPC coder at all, I barely know 8086 assembly. Somebody have it already written? The "formula" for RC5 is pretty interesting and looks like is made to be implemented in Assembler. Cia0, Juriaan