CTRL Use alt charset
CTRL save cursor
CSI Use alternate screen buffer
CSI set scrolling region 1-24
S  -1 ┋                                                                                ┋
A      └ normal
CSI Reset Replace mode
CSI Erase all
S   1 ┋World!                                                                         x┋
A                                                                                     └┛ alt
S   2 ┋2                                                                              x┋
A                                                                                     └┛ alt
S   3 ┋3                                                                              x┋
A                                                                                     └┛ alt
S   4 ┋+4                                                                             x┋
A                                                                                     └┛ alt
S   5 ┋5                                                                              x┋
A                                                                                     └┛ alt
CSI Erase all
CSI Use normal screen buffer
CTRL restore cursor
S  24 ┋                                                                                ┋
A      └ carriage-return
CSI Normal cursor keys
CTRL Normal keypad
