Re: [Sdcc-user] Help - About AVR Branch of SDCC

[Dave M. <mc...@ne...>]

On 12/19/2013 04:33 PM, Masur Jonathan wrote:
> This might be out of topic, but while this was mentionned, I've asked me 
> this question a few times so I hope somebody has an answer.
> 
> How comes AVR can be targetted by gcc at all ? AVR might be RISC, true, 
> but it is a 8-bit architecture, and the standard gcc compiler is 
> optimized for at least 16-bit CPUS right, because SDCC is separate from 
> GCC for a reason, right ?

  Well, GCC supports AVR because people wrote AVR support into GCC. ;)
AVR is a bit more "compiler friendly" than, say, the Z80.

> Or perhaps gcc doesn't target the same kind of AVR processor as those I 
> used to code for in assembly ?

  AVR is AVR, architecturally speaking.

> As for the MSP430, I know gcc supports it but I have no idea how good it 
> is. I have used the IAR compiler when I had to target those.

  Well, GCC "supports MSP430" meaning TI distributes a hacked-up GCC
that targets it, yes.  That support has not yet (the last time I
checked) been merged into the official sources, which means I'll have
one different, weirdly-configured GCC installation alongside my
half-dozen nice consistent standard ones.  No thanks.

              -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA