Now my GO_IF_LEGITIMATE_ADDRESS refuses anything that is not a REG
or a CONSTANT_ADDRESS:
int legitimate_address1(enum machine_mode MODE,rtx X)
{
if(CONSTANT_ADDRESS_P(X))
return 1;
if(GET_CODE(X)==REG && is_base_reg(REGNO(X)))
return 1;
r
Hi Sergio. My port has similar addressing modes - all memory must be
accessed by one of two registers and can only be accessed indirectly,
indirect with pre increment, and indirect with post increment. The
key is GO_IF_LEGITIMATE_ADDRESS and the legitimate address helper
function. Mine looks lik
On 01/25/10 11:21, Sergio Ruocco wrote:
Gabriel Paubert wrote:
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
purpos
Gabriel Paubert wrote:
> 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 an
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
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) ; st
