<
data> Part of an item of data, storage location or message,
identified as a certain number of contiguous
bits starting
at a certain
bit position within the data.
Bit position zero
is usually the least significant
bit.
For example, in an
ARM machine code instruction the
four-
bit field at bits 28 to 31 (the four most significant
bits in the 32-
bit word) is the "condition code".
(2007-03-26)