Re: [python-win32] Still looking for a method to get CPUID info ...
Tim Roberts wrote: >Very interesting. I tried this on Python 2.5.2 on my Windows 7 64 >system (using 32-bit Python). The C version works fine, but the >assembler version gets a "DLL initialization error". I fixed that by >adding "mov eax, 1" to the "start" routine. See if that helps your issue. It doesn't, I get the same error (either 0x1020800 or 0x20800, the former the most often, which makes me wonder if the error contains bit flags). 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? Gertjan. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Still looking for a method to get CPUID info ...
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
[python-win32] 'No such interface supported' question
Hi Nick, I have done some python work before but I new to the COM stuff. I am trying to Create a MXD and layers to it from python. I have been looking at this PythonNet stuff and it is all getting a bit blurry. I was wondering if you could give me some pointers to basically get python recognizing the ArcMap class or do you have any code that would help me get to that point? Look forward to hearing from you. Cheers, Gareth ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Still looking for a method to get CPUID info ...
Tim Roberts wrote: >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. That's it! Now, both Python 2.5 and 2.6 (and 3.1, if I change the print statement) run this code successfully. Does that mean there is a difference in calling sequence between Python 2.5 and 2.6? Or do they have different expectations of which registers are left untouched? Thanks for sticking with this. I often save little bits of code from this newsgroup that I might want to use later, and now I have a little project that shows me how to create a DLL from assembly code and call it from Python. Gertjan. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
