Pointers Are More Abstract Than You Might Expect in C

Re:Pointers Are More Abstract Than You Might Expect in C by nwmcsween on Monday July 02, 2018 @12:14PM (#17442909)

> flag bits

That's sort of a processor specific implementation detail, IIRC you can access them via GNU extensions.

> SIMD vectors

Not having SIMD IMO is a feature as doing useful things will expose processor specific details, you can use SWAR to do some of SIMD.

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Re:Pointers Are More Abstract Than You Might Expect in C by jcranmer on Monday July 02, 2018 @01:06PM (#17443419)

Exposing processor-specific details is the desired feature, not a bug. The people who want to program C for portable assembly do so because they want to take advantage of things they know about the architecture: the same source code isn't really portable across different architectures without #ifdef anyways.

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Re:Pointers Are More Abstract Than You Might Expect in C by p1esk on Monday July 02, 2018 @02:31PM (#17444244)

But if you don't care about portability, and want more hardware control, you can do inline assembly, or something like Intel's AVX intrinsics.

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