* Check for obligatory CPU features and abort if the features are not
* present. This code should be compilable as 16-, 32- or 64-bit
* code, so be very careful with types and inline assembly.
* Check for obligatory CPU features and abort if the features are not
* present. This code should be compilable as 16-, 32- or 64-bit
* code, so be very careful with types and inline assembly.