The Alpha architecture and instruction set differ substantially from the x86 processor family. Please read your Alpha documentation thoroughly before writing Alpha assembly code. In addition, please note that the basic syntax of assembler statements on Alpha differs from other platforms. Specifically, note that the use of braces ({}) to delimit assembly code, as allowed on x86 platforms, is not supported on Alpha and will cause syntax errors at compile time.
One resource for learning Alpha assembly language is the online help file included with ASAXP — the Alpha Assembler for Windows NT. The help file, ASXAP.CHM, is included on the MSDN CD included with your copy of Visual C++, and is listed in the Visual C++ documentation Table of Contents.