The most practically interesting part:
>FMA4 is not officially supported on Ryzen, but I found that the FMA4 instructions actually work correctly on Ryzen, even though the CPUID instruction says that FMA4 is not supported.
>FMA4 is not officially supported on Ryzen, but I found that the FMA4 instructions actually work correctly on Ryzen, even though the CPUID instruction says that FMA4 is not supported.