arch/x86_64/src/kernel/cpu/tr.cpp


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#include "arch/kernel/cpu/tr.hpp"

namespace teachos::arch::kernel::cpu
{
  auto store_task_register() -> uint16_t
  {
    uint16_t current_value{};
    asm("str %[output]" : [output] "=m"(current_value));
    return current_value;
  }

  // TODO: Is this really correct?
  auto load_task_register(uint16_t gdt_offset) -> void
  {
    asm volatile("ltr %[input]" : /* no output from call */ : [input] "m"(gdt_offset));
  }
}  // namespace teachos::arch::kernel::cpu