SAM Coupe Disk Drive Manual 22
You can change a drive variable by typing:
POKE DVAR n,d
where n is the drive
variable
number and d is
data.
The drive variables are:
0
control of border flashing. (POKE DVAR
0,0 is no flash; 0,7 is the default
setting.)
1
drive 1 data. (If the drive is double-
sided, type POKE DVAR 1,208 for 80
tracks, 1,168 for 40 tracks. If single
sided, POKE DVAR 1,(number of tracks.))
2
drive 2 data. (Set up as 1 above.)
3
drive 1 step rate. (POKE DVAR 3,0 = 3
milliseconds step rate; POKE DVAR 3,3
would be 6 milliseconds.)
4
drive 2 step-rate. (Set up as 3 above)
5
allows you to fill in lines in the
DIRectory. (E.g. POKE DVAR 5,"-" would
fill in DIRectory lines with a series of
hyphens. Experiment!)
6
will be used in a future network file
server system.
7
type PRINT PEEK DVAR 7 to see the
current SAMDOS version number.
UGD Design
Save
This program allows you to create user-
defined
graphics
, and to save them as a file.
Once saved you can import the graphics which
you have defined into your own programs.
UDG
Design
can be loaded either from the menu
(option 7), or by typing LOAD"UDG Design".
The program will autorun. It is controlled
by a joystick or by the cursor keys and
spacebar.
To fill an empty pixel (picture cell) press
fire (
or the spacebar
). If you fire (or press
the spacebar) on a filled pixel it will
become empty.
To chose a menu option press 'M' or 'N' to
get to the menu, and use either the joystick
or cursor keys and spacebar to choose an
option. If you get the 'Filename?' prompt
when you press N or M, press <RETURN>.
will ask you for a filename; type in the
name of your choice, and the program will
save the user-defined graphics created so
far under this name.
Summary of Contents for SAM drive
Page 1: ......
