windows64

RDTSCP in NASM always returns the same value

由 十年热恋 提交于 2019-11-27 17:00:38
问题 I am using RDTSC and RDTSCP in NASM to measure machine cycles for various assembly language instructions to help in optimization. I read "How to Benchmark Code Execution Times on Intel IA-32 and IA-64 Instruction Set Architectures" by Gabriele Paoloni at Intel (September 2010) and other web resources (most of which were examples in C). Using the code below (translated from C), I test various instructions, but RDTSCP always returns zero in RDX and 7 in RAX. I first thought 7 is the number of

Installing NumPy and SciPy on 64-bit Windows (with Pip)

由 半城伤御伤魂 提交于 2019-11-26 20:17:14
I found out that it's impossible to install NumPy/SciPy via installers on Windows 64-bit, that's only possible on 32-bit. Because I need more memory than a 32-bit installation gives me, I need the 64-bit version of everything. I tried to install everything via Pip and most things worked. But when I came to SciPy, it complained about missing a Fortran compiler. So I installed Fortran via MinGW/MSYS. But you can't install SciPy right away after that, you need to reinstall NumPy. So I tried that, but now it doesn't work anymore via Pip nor via easy_install . Both give these errors: There are a

Installing NumPy and SciPy on 64-bit Windows (with Pip)

由 梦想与她 提交于 2019-11-26 09:02:57
问题 I found out that it\'s impossible to install NumPy/SciPy via installers on Windows 64-bit, that\'s only possible on 32-bit. Because I need more memory than a 32-bit installation gives me, I need the 64-bit version of everything. I tried to install everything via Pip and most things worked. But when I came to SciPy, it complained about missing a Fortran compiler. So I installed Fortran via MinGW/MSYS. But you can\'t install SciPy right away after that, you need to reinstall NumPy. So I tried
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