sdl2_frt/src/cpuinfo
Sam Lantinga 9cd5f5ceca Fixed bug 2404 - CPU detection not working with MSVC on x64
Tiemo Jung

All CPU detection functions SDL_Has* will return false, even if it is supported by the CPU, if SDL is compiled with MSVC and the target is x64.

The reason for this is that 'CPU_haveCPUID' will return 0 and macro 'cpuid' in SDL_cpuinfo.c is the fallback implementation, which sets all params to zero.

It is safe to assume that cpuid is supported on a CPU that runs windows x64, so CPU_haveCPUID can just return 1, and the empty macro can be replaced with a small wrap around the __cpuid intrinsic.
2014-02-22 19:10:45 -08:00
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SDL_cpuinfo.c Fixed bug 2404 - CPU detection not working with MSVC on x64 2014-02-22 19:10:45 -08:00