Commodore PET User Manual page 292

This markedly improves the readability of the line being entered. PET BASIC
makes no distinction between the two of them, however. Either one is expanded
to the word LIST.
Where a two-Ietter abbreviation is ambiguous (does St mean STEP or
STOP?) the two-Ietter abbreviation is assigned to the most frequently used
keyword, and the other word or words are either not abbreviated or are abbrevi-
ated by the first three characters, the third entered in shifted mode. For
STEP/STOP, STOP is abbreviated:
St
STEP is abbreviated:
STe
To abbreviate STEP, type unshifted S (capital Sl. unshifted T (capital
Tl.
and
shifted E Oower-case e or graphic 3/4 TOP L1NE HORIZONTAL 15).
Following are a few sample input lines showing use of the two- and three-
letter abbreviations wherever possible. Ali the abbreviated words are expanded to
the full spelling when vou list the programs.
Po 59468, 1 4 •
(after RETURN) Abbreviation for POKE 59468,14
10
Le
A=10
20 E=A
An
14+Ex(2)
30 Di C(5)
40
Fo 1=0 TO 5
50 Re CO)
60
Ne
70 Da
1,6,2,4,10,5,16
80 REs
90 En
Li Abbreviation for LIST
1(1 LET A=10
20 B=A AND 14+EXP(2)
:3(1
DI M C ( 5 )
4(1 FOF: 1=1<:1 TO 5
51<:1 READ C( 1)
61<:1 NE:=<T
70 DATA 1.6.2.4.10.5.16
::;:(1 F:ESTORE
90
END
Po 59468, 12 •
(before RETURN) Abbreviation for POKE 59468,12
After keying RETURN at the last POKE command line (return to Standard
Character Setl. vou will see the abbreviations show with graphics as the shifted
characters.
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