BIT0 option Definition
An option that prevents certain warning messages if you use the lowest-numbered bit of a group as anything other than the LSB.
When you declare a group with a range of numbers, the first
number listed is always the MSB, the last is always the LSB. If you
specify a range in ascending order, a warning message is issued
unless you have used the BIT0
option to specify that
the lowest numbered bit is the MSB. If you set the
BIT0
option to MSB, a warning message is generated if
you specify a range in descending order. If you set
BIT0
to ANY
, you may specify ranges in
either ascending or descending order without receiving a
warning.