Your Commodore - Commodore Is Awesome

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7
ou may have noticed that our
listings are free of those horrible little
black blobs which send you searching
around the keyboard for a suitable
graphic symbol. You may also have
noticed the funny numbers by the side
of each line of the listing. Fret no more,
it's all part of our easy entry aid.
Instead of those nasty graphics and
rows of countless spaces in PRINT
statements and strings we use a special
coding system. The code, or
mnemonic, is always contained in
square brackets and you'll soon learn
to decipher their meanings.
For example, [SA I would mean
type in a Shifted A, or an ace of spades
in layman's terms, and [SA 10] would
mean a row of ten of these symbols.
[S-I-2] means hold down the shift
key and press the plus key twice. It
doesn't take a great leap of logic to
realise that [C+2] means exactly the
same thing except that the Commodore
key (bottom left of the keyboard)
is held down instead of the shift key.
If more than two spaces appear in a
statement then this will be printed as
[SPC4] or, exceptionally, [SSPC4].
Translated into English this means
press the spacebar four times or in the
latter case hold the shift key down
while you do it.
A string of special characters could
appear as:
[CTRL N, DOWN2,LEFT5,BLUE,
F3,C3]
This would be achieved by holding
Easy Entry C64 01
Listings
Get it right first time with our deluxe program system
for the C64.
down the CTRL key as you press N,
press the cursor key down twice, the
cursor left key five times, press the key
marked BLUE while holdingdown the
CTRL key, press the F3 key and.
finally hold the Commodore key down
while pressing the number two key (C2
would of course make the computer
print in brown).
Always remember that you should
only have a row of graphics characters
on your screen with no square brackets
and no commas, unless something like
this appears:
[SS1,(01
In this case the two characters should
have a comma between them.
On rare occasions [REV 1] will
appear in a listing. This is a delete
symbol and is created by entering the
line up to this mnemonic. Then type a
closing quotation mark (SHIFT & 2)
and delete it. This gets the computer
out of quotes mode. Hold down CTRL
and press the number nine key
(RVSON), type the relevant number of
reversed T's and then hold down
CTRL and press zero (RVSOFF).
Next type another quotation mark and
delete it again. Now finish the line and
press RETURN.
A list of these special cases is given
in the table but remember that only
one of these mnemonics will appear
outside of a PRINT string: the symbol
for pi. This may appear when its value
is needed in a calculation so this may
look something like:
YOUR COMMODORE november 1986:38
:CC=2*[P1]•R:
Ignore the square brackets and Just
type in a shifted upward pointing
arrow (ie, the pi symbol).
FACJW
,
AM:
YNTAX CH
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61-m/0 t 4 9 1 5 2
N
FOR
T
L=0 TO BLICX.OtFOR D..0 TO
A X :READ A:CY..CX.A:FCCE SA41.3116•
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NEXT
C 4 LtSYS 49152
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