Lpc2000

> Texas Instruments 320C40 compiler had a 32-bit char, short, 
> int, and long.  Yes, it was not a byte-oriented machine and 
> much trouble with byte-oriented protocols ensued.

Or even less obvious the 24bit gnu based C compiler for the Motorola
series of DSP's (5600x), char, short, int and long were all 24 bits. To
make things work properly using the same code on a test PC we had to
ensure int-like variables were forced to be 32bits (rather than 16bits),
so it was lucky it could be all done in one file where my generic types
were defined. 
A situation like this does mean you should allow for a type that is the
natural int of the machine as well as the specific types like int32_t.
In most cases you probably don't want a 32bit counter on the PC to be
forced into a double word 48bit on the DSP; for most purposes a 24bit
counter will do. I tend towards some global use types like "COUNTER" and
"INDEX" that I set appropriately in the global types file, as well as
min_no_of_bits types like INT32_T where you really do mean you need
32bits (or more).

Cheers,
Bruce