Owner`s manual

28
Program file "PLAYER"
10 REM CELLO PLAYER
20 MUSI C M1$, M2$, M3$
30 PRI NT"OK7"
40 E NO
On slave disk in drive number 2
First,
"COMPOSER" is within text area and is executed.
Text area
~
Dr:ve File
Corn oser
2 "PLAYER" "PL:'{'y THE CELLO"
The text is first shunted to the disk in FDl taking DIR by the SWAP command of line
number 60, and the area
is made NEW.
r----------,~r-l~lr(C~O-M-P-O~SE~R~)1
NEW I I 2 . "PLAYER" .
1-- ___ --'
Next, BTX "PLAYER" is overlaid and executed. The melody is played.
Text
"PLAYER"
At the end, the shunted COMPOSER is reset and says "VERY GOOD."
Reset
r-1-!-·C-~-M-PO--SE-R- .. -'r1r--r-I,,-p-LA-Y-E-R- .. ...,: I ~~~~e~OOD ..
1.8 Reserved Words
The DISK BASIC text is composed of reserved words, also called key-words, the
operand, separator and data. The
DISK BASIC the reserved words, which are special
words to execute certain determined functions, and commands, statements and
functions are appropriate to these words.
Because the reserved words are certain words used in order to execute special
commands, the programmer cannot use them as names of variables, arrays, etc. Next
page shows a listing
in alphabetical order of all of the DISK BASIC reserved words.
(The numbers to the right
of the reserved words indicate the reference page.)
When there
is a (MZ) notation, refer to the Personal Computer OWNER'S
MANUAL or to the DISK BASIC SUMMARY of this manual.