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
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