Re: [avr-chat] Simple endianess question

[Russell Shaw]

Rick Mann wrote:
> All my life I've worked on big-endian machines (just about).  Certainly 
> all my C career.
>
> In C, do I write hex constants for use on a little-endian machine as  
> big-endian or little?
>
> For example, if I want to mask off the high 4 bits of a 16-bit  integer, 
> would I write this:
>
> uint_16 foo;
>
> foo & 0x0FFF;
>
> or would I write:
>
> foo & 0xFF0F;

It is: foo & 0x0FFF

it is the same as foo & 4095. If endian mattered, you'd have to change every
number in your program to compile it on a different endian machine.