X86_CRC32_ID

#define X86_CRC32_ID   0x0000000000000040llu

A bit mask used to request support of the Intel CRC32 instruction.

The mask is mapped to the following Intel x86 and x86-64 CPUID flag: CPUID.01H:ECX.SSE4_2[bit 20].

See also

x86_cpuid_test_feature;
get_x86_cpu_info.