Category "memory-segmentation"

CPU Reset (CPU 0) and triple-fault when setting SS register to 0 in bootloader [duplicate]

I am attempting to create a custom operating system (for educational purposes) for which I am also creating the bootloader (multiboot 2). I am

Is a mov to a segmentation register slower than a mov to a general purpose register?

Specifically is: mov %eax, %ds Slower than mov %eax, %ebx Or are they the same speed. I've researched online, but have been unable to find a definitive an