Gertjan Klein wrote: > Interestingly, if I place a ret after the mov eax, [style] instruction, > or even comment out the cpuid instruction, I don't get an exception. > This makes me wonder whether there is something permission-related that > is different between Python 2.5 and 2.6 -- perhaps the 2.5 executable is > not allowed to execute that instruction? >
No, that doesn't make sense. I don't think CPUID is a privileged instruction. Even if it were, that's talking about CPU privileges, which do not vary from process to process. However, I'll bet I know what it is. CPUID trashes ebx, and in the x86 calling sequence, that's supposed to be saved and restored. One of the sets of code is probably storing an error code in ebx and assuming that it survives the CPU cal. Try changing the two function headers to this: GetCpuidEcx proc public uses ebx, style:DWORD ... GetCpuidEdx proc public uses ebx, style:DWORD -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. _______________________________________________ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
