I'm looking for some direction about implemetning a phong shader for PS1.3. I always get an error that the shader is too complex. Gouraud lighting works fine, but phong gets too complex.

Even in PS1.3 shouldn't you be able to write such a basic thing as a phong shader? Has anyone done this (real phong, not a vertex-interpolated phong)? Links?

Im using HLSL.