Setscrunch; Sf; Ss - AMSTRAD cpc 6128 User Instruction

*
setscrunch
Sets the graphic screen's aspect ratio to the input number.
?sf
sf
[0 SS 5 FENCE 1]
?to ci rc le
>repeat 360 [fd 1 rt 1]
>end
circle defined
?setscrunch 2
?sf
[0 SS 5 FENCE 2]
?circle
?setscrunch 2.5
?ci rc le
(screen facts) Outputs information about the graphic screen. The format is:
[<bgcolour> <screen-state> <split-size> <window-state> <scrunch>] where <bgcolour> is
the background pen number, (always 0 under
CP/M 2.2). <screen-state> indicates SS
(split screen), F S (full screen) or T S (text screen). <split-size> is the number of text
lines displayed on the split screen's text window, and <window-state> indicates
WIN DO W, W RAP, or FEN C E mode. <scrunch> is the aspect ratio of the screen, and
defaults to 1. It can be reset using set s c run c
h
(not available under
CP/M 2.2).
?sf
[0 SS 5 FENCE 2.5]
ss
(split screen) Displays a window of text on the graphic screen.
?ss
window
Allows the turtle to plot outside the visible graphic screen after a
w
rap or fen c e
expreSSIOn.
?fence fd 300
Turtle out of bounds
?window
?fd 300
Introduction to Logo
Chapter 6 Page 25