AMSTRAD CPC464, User Manual

Page: 151 / 249

INSTR
I N S T R ( [ < i n t e g e r e x p r e s s i o n > , < s t r i n g e x p r e s s i o n > , < s t r i n g
expression>)
P R I N T I N S T R ( 2 , “ B A N A N A ” , “ A N ” )
FUNCTION: Searches the first string expression, for the first occurance of the second string
expression), where the optional number at the start indicates where to start the search - otherwise
the search begins at the first character of the first string expression).
Associatedkeywords:
MID$, LEFT$, RIGHT$
INT
INT(<n u m e r i c e x p r e s s i o n > )
PRINT INT(-1 . 9 9 5 )
-2
FUNCTION: Rounds the number to the nearest lower integer, removing any fractional part. The
same as
FIX
for positive numbers, but returns one less than
FIX
for negative numbers not already
integers.
Associated keywords:
CINT, FIX, ROUND
JOY
J O Y ( < i n t e g e r e x p r e s s i o n > )
1 0 IF JOY(0) AND 8 THEN GOT0 100
FUNCTION: The JOY function reads a bit-significant result from the joystick specified in the
<integer expression> (either 0 or
1).
Bit Decimal
0: Up 1
1: Down 2
2: Left 4
3: Right 8
4: Fire 2 16
5: Fire 1 32
Associated keywords:
INKEY