Despite previous announcements, Advanced Micro Devices has chosen Swedish software company Virtutech to write the simulator for the forthcoming 64-bit Hammer line of CPUs. Transmeta had been on line to write the Crusoe-based simulator, used by software developer to check programs for compatibility with the yet unmade chip. The “VirtuHammer” by Virtutech, however, will work on a wide range of x86 microprocessors, including Transmeta’s Crusoe, AMD’s Athlon and Intel’s Pentium III. AMD had previously written its own simulator, which proved unsatisfactory. There is no sign that the change in plans reflects a deterioration of the relationship between any of the companies.