Remote Processing CAMBASIC User Manual
Page 36
Comm ands - 3
AND
Numeric Fun ction
SYNTAX:
n = a A N D b
PURPOSE:
P e r fo r m s b it w is e o r lo g ic a l o p er a ti on o n t w o n u mb e rs . A N D ' i ng is us ua ll y p e rf or m e d d u ri ng I/ O
operations to set a line low.
REMARK S:
Variables a and b are in the range of 0 to 65,535 (&FF FF). When printed, numbers greater than
32,768 are negative.
Logical A ND ' ing is perfo rme d during IF -TH EN o perations to test if all conditions ar e met.
RELATED:
OR, XOR
EXAMPLE:
10
A = INP(0)
:'get current status of port
20
A = A AND &FE
:'set bit number 1 low
30
OUT 0,A
:'output new status
40
PRINT A
RUN
8
Use AND in an IF-THEN statement to make sure all conditions are true.
10
IF (TEMPERATURE > 100) AND (HUMIDITY < 5) THEN GOTO ..dry
When the variable TEM PERA TURE is more than 3 and variable HUM IDITY < 25 then the
condition is true. In this case, AND returns a true (non-zero) condition.
ERROR:
none