Re: [avr-gcc-list] C and AS programs - compiled together

[Grzegorz !Kubik]

>> I would like to align 256B buffer at the RAM address 0xXX00 - to use
>> 8-bit buffer pointers.
>
> Well, IMHO there's an .align pseudo-op.  This is potentially wasting
> up to 255 bytes of RAM then.
>

Agree. But my task is to reuse existing assembler program (that has 8-bit pointers for simplicity and speed), so waisting some RAM is acceptable.

 

.align is from assembler side. C declarations look more convenient for me. But I found in:

http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Attribute-Syntax.html#Attribute-Syntax

that: "...for example, the usage of `aligned' and `noreturn' attributes given above is not yet supported"

What is and what is not supported?

Anyway, reading linker manual may be necessary ;-(

I would prefer simple example of aligning 256B buffer to 0xXX00 address in RAM...