On Mon, Jan 25, 2010 at 01:34:09PM +0100, Sergio Ruocco wrote:
>
> Hi everyone,
>
> I am porting GCC to a custom 16-bit microcontroller with very limited
> addressing modes. Basically, it can only load/store using a (general
> purpose) register as the address, without any offset:
>
> LOAD (R2) R1 ; load R1 from memory at address (R2)
> STORE R1 (R2) ; store R1 to memory at address (R2)
>
> As far as I can understand, this is more limited than the current
> architectures supported by GCC that I found in the current gcc/config/*.
The Itanium (ia64) has the same limited choice of addressing modes.
Gabriel
