Translations:AMD64/FAQ/19/en

Every AMD64 processor is able to run 32bit code as well as 64bit code. However, when you have a 32bit application, you are unable to mix it with 64bit libraries or vice versa. You can, however, natively (without emulation) run 32bit applications if all shared libraries it needs are available as 32bit objects. You can choose whether you want multilib support or not by selecting the according profile. The default is a multilib-enabled profile.