SuperBASIC by George McIntosh is a RSX based Library published in Dec 1989 Issue of Amstrad Action (#51), which includes 27 Commands, which can be incorporated for one's programs. The commands are:
HIGH | LOW | OR | AND | XOR | MON |
MOFF | ZZZ,<byte expression> | LEFT | RIGHT | UP | DOWN |
LIST | RON,<byte expression> | GET,<integer expression> | GWINDOW,<left>,<right>,<top>,<bottom> | GPEN,<ink> | GPPAPER,<ink> |
SHIFT | CAPS | ASK | INVERT | SCROFF | SCRON |
FRAME | UNSC | FADE |