User guide
VT220 Keyboard Function VT220 Keyboard Byte Sequence
Delete Pn Characters                      Esc [ Pn P                     
Insert Pn Characters                      Esc [ Pn L                     
Delete Pn Lines                      Esc [ Pn M                     
Insert Character                      Esc [ Pn @                     
Erase Pn Characters                      Esc [ Pn X                     
VT52 terminal emulation
Table D.10 lists the keystroke mapping (encoding) for VT52 terminal emulation.
Table D.10: VT52 Encoding
VT52 Keyboard PC Character Sequence VT52 Keyboard Byte Sequence
Delete                      Delete                      0x7F                     
Up Arrow                      Up Arrow                      Esc A                     
Down Arrow                      Down Arrow                      Esc B                     
Right Arrow                      Right Arrow                      Esc C                     
Left Arrow                      Left Arrow                      Esc D                     
Shift-F1                      PF1                      Esc P                     
Shift-F2                      PF2                      Esc Q                     
Shift-F3                      PF3                      Esc R                     
Shift-F4                      PF4                      Esc S                     
Table D.11 lists the decoding for VT52 terminal emulation.
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