movw $0×1f01,0xb8000; hlt;

Quick fix for the backspace key if it doesn’t work properly when SSHing to your linux box.
First, under

Terminal - Preferences - Advanced

set

Delete sends Ctrl-H

This should allow the delete key to work in your screen session.
Then, in your linux box, fix the delete binding in your vimrc:

set t_kb=ctrl-vBACKSPACE
fixdel