The 386 segmentation system exists above the paging portion of the MMU, so it is possible to move them around without physically copying memory (or adjusting th

The 386 segmentation system exists above the paging portion of the MMU, so it is possible to move them around without physically copying memory (or adjusting the segment+offset). Here is a somewhat reasonable diagram of how it all works https://stackoverflow.com/questions/4039325/assembly-segmented-model-32bit-memory-limit https://stackoverflow.com/questions/4039325/assembly-segment... (although i'm probably agreeing with you)