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ts
(text screen) Selects a full text screen.
?ts
type
Displays the input object(s) on the text screen, removes list's outer brackets, does not
follow last input with a carriage return (compare with pr and show).
?type [a b c]
a b c
4.10.8 GRAPHIC SCREEN:
Note that the screen is in Mode 1, giving four colours, and that the same co-ordinate
system is used as in AMSTRAD BASIC. In other words all screen positions will be
rounded to the nearest even-numbered screen dot. Red, green, and blue colours can
have amounts of 0,1,or 2.
clean
Erases the graphic screen without affecting the turtle.
?fd 50
?clean
cs
(clear screen) Erases the graphic screen and puts the turtle at [0,0] heading 0 (north)
with the pen down.
?rt 90 fd 50
?cs
dot
Plots a dot at the position specified by the input coordinate list in the current pen
colour.
?dot [50 10]
fence
Establishes a boundary that limits the turtle to the visible graphics screen. window
removes the boundary.
?fence
?fd 300
Turtle out of bounds
Chapter 4.13 AMSTRAD Disc Drive & Interface DDI-1 Manual