> So, this is about Apple's undocumented AMX instructions, issued from CPU, executed on a special accelerator execution unit. CPU instruction -> AMX instructio

> So, this is about Apple's undocumented AMX instructions, issued from CPU, executed on a special accelerator execution unit. CPU instruction -> AMX instruction -> AMX result -> CPU? How are these kinds of things usually kept in sync/in a manageable state? Like does the CPU block until the AMX returns?