Move cursor right to a multiple of n col- umns. (Originally n = 10, but n may be changed with the BASIC scroll command.)

Clear virtual screen and home the cursor.

Home the cursor.

Move cursor right by 8 columns.

Scroll text up the screen by four lines (or by the amount set with the BASIC SCROLL command.)

Scroll text down the screen by four lines (or by the amount set with the BASIC SCROLL command.)

Change modes:

upper case to lower case, lower case to upper case, or numeric mode to lower case.

If cursor is at beginning of a logical line, delete character at cursor. Otherwise, delete character to left of cursor.

Enter insert mode. or exit from insert mode.

Enter numeric mode, or exit from numeric mode to upper case mode.

In conjunction with any key but a letter key, Iyields the upper character or function on the given key. In conjunction with a letter key, m yields a lower case character if HX-20 is in upper case mode, or an upper case letter if HX-20 is in lower case mode.

If HX-20 is in upper case mode, pressing q and another key yields a graphics character. In lower case or numeric mode, IGRPH has no effect.

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