Sapieha The readme.txt inside the official PropTerminal ZIPs, contain a description of all the commands. But this textfile is really a mess and should be redone one day. So here is short extract of the most important commands: $20..$FF = draw character (Prop1 ROM-font) 0 = clear screen 1 = home 5,12,x,y = set text cursor position x,y in chars 5,md,x,y = grahic command, see later 8 = backspace 9 = tabulator (8 spaces) 12,colr = change color 1..15 Grahic modes: 5,0,x,y = set left top for box,circle,rbox 5,1,x,y = draw pixel at x,y 5,2,x,y = draw line to x,y (from prev point) 5,3,x,y = draw filled box x,y=right bottom 5,4,x,y = draw filled box XOR mode x,y=right bottom 5,5,x,y = clear area x,y=right bottom 5,7,x,y = draw filled circle x,y = center 5,8,x,y = draw rounded outlined box x,y=right bottom