HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
INT 33,A - Set Mouse Text Cursor        AX = 0A        BX = 00  software cursor             01  hardware cursor        CX = start of screen mask or hardware cursor scan line        DX = end of screen mask or hardware cursor scan line        returns nothing
Esc or Alt-X to exit	int 33,a	Home/PgUp/PgDn/End ←↑↓→