The R600 3D register guide is 166 pages long and covers R600 shader instructions, R700 shader instructions, shader textures, and various other registers needed to program a 3D graphics driver. This register guide is targeted solely for driver developers and is not anything for end-users. If you are interested in the R600/700 3D register guide, it can be downloaded at X.Org. This register information was what AMD and Novell had used to write the initial 2D/3D open-source code, so this guide should be fairly complete and allow their new open-source stack to grow. Within a few months we should see a modest open-source R600/700 3D driver beginning to appear in the different desktop Linux distributions. Phoronix has been told by AMD that soon they will also be releasing a new programming guide."