Remote Processing CAMBASIC - Manual (Page 15)

Concepts - 9
NOTE: Attempting to enter a line with more than 24 constants will cause the remainder of the line to be
terminated. CAM BASIC does this to prevent serious program malfunction. If you create a program
on a PC and try to download a line with more than 24 constants, CAM BASIC will try to send an
error m essage. Subsequent lines will become garbled as the synchronous nature of data transmission
is lost.
When numer ic constants are printed in a program listing, they are always followed by a space. The space is added by the
L I ST s ta t em e n t a n d i s n o t s to r e d i n y o ur p r og r a m .
OPERATORS
Arithme tic Operator s:
CAM BASIC is capable of m anipulating single bits within an 8– bit field, packed BC D data, 8– bit bytes, 16– bit words,
and real (floating point) num bers.
CAM BASIC assum es that all numbers con tained in a progra m and those input by the oper ator are de cimal. It can also
accept hexadecimal numbers. T he prefix of the number determines its modulus. For example,
Decimal 33797 (no prefix needed)
Hexadecimal &8405 (& m eans hexad ecimal)
Binary @11001001 (@ means binary)
The outpu t can be in decim al, h exadecim al or binar y form at:
Decimal 242
Hexadecimal E2
Additional math operators are:
Operator Operation Exam ple
+ addition X+ Y
– subtraction X– Y
* multiplication X*Y
/ division X / Y
\ integer division X \ Y
mod modulo X mod Y
Expression analysis of multiplication and division is carried out first from left to right. Then addition and subtraction are
evaluated fr om left to r ight.
NOTE: Values for X and Y cannot exceed 32767 or be less than – 32768 when perform ing integer division.
If these values a re exce eded, overflow will occur , da ta will be er roneou s and no er ror m essage w ill
be generated.
Relational Operators
Operator Relation Exam ple
Tested
= equal X= Y
< > not equal X< > Y