implement atomics

[ASDAlexander77]

Atomics https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Atomics/

[Sinfolke]

I decided to ask chatGPT about how to store and access shared memory in C. And it gave an answer.
Read chat

[Sinfolke]

C seems also has stdatomic.h lib with functions:
atomic_int
atomic_flag
atomic_store
atomic_load
atomic_add
atomic_sub

[ASDAlexander77]

I would use LLVM internals for it for example https://llvm.org/docs/Atomics.html