Eric, I finish the translate raminit.inc to E7501. But in compiling stage, it used up the regs. In the K8, there is enable_mmx_sse.inc to enable cpu access more regs for romcc. So the problem is 1. Can I use the enable_mmx_sse.inc for Xeon without change? It has MMX and sse too. 2. how about the romcc cpu flag. Or just use -mcpu=k8? Regards YH