Can be gcc portable to architecture without indexed addressing mode?

[Andrew Haley]

On 03/17/2010 06:19 AM, 이환희 wrote:
> Hello.
> 
> I have to start to make some c compiler for my own cpu. This cpu has
> very simple core and has many limitations.
> 
> I think that many of those limitations are evitable in source coding.
> But I cannot convince a few of them.
> 
> Instructions of this cpu core have no indexed addressing mode like
> 'base' + 'offset'.
> 
> This cpu can address memories only according to followings.
> 
>   immediate addressing
>   indirect addressing with general registers
> 
> I really want to know that gcc is portable on this core in spite of
> the limitation.

It is, but the generated code is going to be very poor.

Andrew.