Start with 386/486 in 32-bit protected mode. Segmented addressing sucks and is not used. The 8086 also has a lot of extra instructions like LOOP which are use

Start with 386/486 in 32-bit protected mode. Segmented addressing sucks and is not used. The 8086 also has a lot of extra instructions like LOOP which are useful only if you want to be a demo coder. On modern x86 many of these instructions aren't used.