> 'Bit Banging' is a term given to the technique of emulating hardware with
> software.  A classic example is that of the software UART for serial
comms.
> Timing is often critical and the software usualy involves very tight, fast
> code to achieve it's goals.

This is more of a slang than a standard term, so there will probably be
different opinions.  I think of "bit banging" as when the code is
manipulating individual bits or small fields, moving them around, ANDin,
ORing, shifting, etc.  In other words bit-level manipulations as opposed to
"whole word" operations like load, store, higher level arithmetic functions,
etc.


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin@cognivis.com, http://www.cognivis.com

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