Re[2]: [avr-libc-dev] [task #3693] Add new devices: mega 640-1280-1281-2560-2561

[Bertolt Mildner]

Hi Marek,

Am Tuesday, March 15, 2005 um 2:42:53 PM hast du geschreiben:

>> If the IAR Tools are right then only the 256x uses 3-byte addresses on the
>> stack.

> IAR might not be affected because I think they have two separate stacks
> (return stack addressed by SP, and data stack addressed by Y pointer),
> so the size of return address doesn't matter for offsets (Y+d) of
> function arguments on stack.

I was looking at the SP in IAR simulator during a CALL.

SP <- SP-2 for 640/128x
SP <- SP-3 for 256x

But ok, that doesn't mean all too much as the simulator might be
wrong.

Bertolt

-- 
Best regards,
 Bertolt                            mailto:address@hidden