Re: 3 byte variables [feature request]

Best to submit this to the gcc project; it's certainly not something that
would be added through mspgcc.

int20_t was an enhancement I thought useful since the MSP430 CPUX
architecture enables it, but I don't have reason to believe other MSP430
toolchains (including the upcoming RH GCC) will recognize it.  Native
support for it on CPUX still requires 32-bits when it's written to memory,
though, and that wouldn't change since its inherent in the way the
instruction set works.

Peter


On Wed, Jun 5, 2013 at 8:53 AM, kuldeep dhaka <[email protected]>wrote:

> while working on a program i faced a problem.
> i need only 20 bit , and having a 32 bit only waste more memory(12 byte),
> 24bit would much be better.
> i need a uint24_t variable but gcc dont support it so i have to start with
> uint32_t.
> it would be very nice if gcc support such variables.
> i tried a little program and found that gcc (on i686) dont support it.
>
> http://embeddedgurus.com/stack-overflow/2009/06/three-byte-integers/
>
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