vt100[',' - 0x41] = ACS_LARROW;
vt100['+' - 0x41] = ACS_RARROW;
vt100['.' - 0x41] = ACS_DARROW;
vt100['-' - 0x41] = ACS_UARROW;
vt100[',' - 0x41] = ACS_LARROW;
vt100['+' - 0x41] = ACS_RARROW;
vt100['.' - 0x41] = ACS_DARROW;
vt100['-' - 0x41] = ACS_UARROW;